FCC ID: E5M-LEDR400S-74 LEDR 400S Microwave Radio

 

LEDR DIGITAL MICROWAVE RADIOS i e d u G n o i t a r e p O d n a n o i t a l l a t s n I LEDR 400S/F, 900S/F, 1400S/F Series Including Protected (1+1) and Space Diversity Versions P/N 05-3627A01, Rev. C MARCH 2001 QUICK START GUIDE LEDR Series radios are supplied from the factory in matched pairs and will be configured to users specifications. There are a few steps necessary to place the pair on-the-air communi-

cating with each other. Once this is done, system-specific parameters will need to be reviewed and changed to match your requirements. Below are the basic steps for installing the LEDR radio. For a more detailed installation procedure, please see INITIAL STARTUP AND CONFIG-

URATION on page 24. When making cable connections, refer to Section 3.6, Rear Panel Con-

nectors, on page 16 for a rear panel view of the radio. 1. Install and connect the antenna system to the radio Ensure a path study has been conducted and that the radio path is acceptable. Use good quality, low loss coaxial cable. Keep the feedline as short as possible. Preset directional antennas in the direction of desired transmission/reception. 2. Connect the data equipment to the rear panel data interface The data interface should be an RJ-45 connector for Fractional-T1, Fractional-E1, or E1, and DB-25 for EIA-530. Verify the customer premises data equipment is congured as DTE. (By default, the LEDR radio is congured as DCE.) 3. Apply DC power to the radio Verify that the line voltage matches the power supply input range (24 Vdc or 48 Vdc). The power connector is a three-pin keyed connector. The power source can be connected with either polarity. The center conductor is not connected. 4. Change SUPER password and set up user access Login to Network Management System as SUPER

, using password

. SUPER

(See login on page 68

.) Change the password using the Set up required users, passwords and access levels using the command. (

PASSWD See passwd on page 73

) USER command, as required. See user on page 86

) 5. Set the radios basic conguration using front panel or Console interface Set the transmit/receive frequencies (

TX xxx.xxxx RX xxx.xxxx

) if they need to be changed from the factory settings. (See freq on page 58

.) Refer to this manual for other conguration settings. 6. Verify and set as necessary the following parameters to allow data throughput and interconnection with the network. RF transmit and receive frequencies. (See Radio modulation type and data rate parameters. (

Data interface clocking. (

Data framing. (

See fstruct on page 59 See clkmode on page 54

). freq on page 58

.) See modem on page 72

). The Quick Start Guide is continued on the rear cover of this manual. TABLE OF CONTENTS 1.0 INTRODUCTION ......................................................................... 1 1.1 Product Description ..........................................................................1 1.2 LEDR Features ................................................................................2 1.3 Typical Applications ..........................................................................2 1.4 Protected Conguration ...................................................................3 2.0 MODEL NUMBER CODES.......................................................... 4 3.0 HARDWARE INSTALLATION & BASIC INTERFACE REQUIREMENTS ....................................................................... 7 3.1 Introduction ......................................................................................7 3.2 General Requirements .....................................................................7 Site Selection .................................................................................8 Terrain and Signal Strength............................................................8 On-the-Air Test ...............................................................................9 A Word About Interference .............................................................9 3.3 Antenna and Feedline Selection ....................................................10 Antennas ......................................................................................10 Feedlines......................................................................................11 3.4 Radio Mounting ..............................................................................12 Maximizing RSSI..........................................................................13 Attaching the Rack Mounting Brackets.........................................13 3.5 Front Panel .....................................................................................13 Indicators, Text Display and Navigation Keys ...............................13 Connectors...................................................................................16 3.6 Rear Panel Connectors ..................................................................16 Connector Locations ....................................................................17 Ground Stud.................................................................................17 Antenna/TXRF Connector ........................................................18 RXRF Connector ......................................................................18 G.703/Expansion Data .................................................................18 Ethernet........................................................................................19 EIA-530-A.....................................................................................19 Service Channel...........................................................................19 Alarm I/O ......................................................................................20 DC Power Input (Primary Power) .................................................21 Protected Conguration Connections...........................................22 3.7 Bandwidths, Data Rates and Modulation Types .............................22 3.8 Transmit Clock Selection (Subrate Radios Only) ...........................23 MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide i 4.0 INITIAL STARTUP AND CONFIGURATION .............................. 24 4.1 Introduction ....................................................................................24 4.2 STEP 1Power up the LEDR Radios ...........................................24 4.3 STEP 2Establish Communications with the Radio .....................25 4.4 STEP 3Make Initial Login to Radio .............................................25 4.5 STEP 4Change the SUPER Password .......................................26 4.6 STEP 5Review Essential Operating Parameters ........................27 4.7 STEP 6Set TCP/IP Settings to Enable SNMP and/or Telnet Management (If required) ..............................................................28 4.8 STEP 7Set User Congurable Fields .........................................28 4.9 STEP 8Verify Radio Performance ..............................................28 4.10 STEP 9Install the Link ..............................................................28 4.11 STEP 10Verify the Link Performance .......................................29 5.0 CONFIGURATION & CONTROL VIA THE FRONT PANEL....... 29 5.1 Front Panel LCD Menu Descriptions ..............................................32 CONSOLE....................................................................................32 Default Screen..............................................................................32 Diagnostics...................................................................................32 Front Panel ...................................................................................33 G.821............................................................................................33 General.........................................................................................34 IO Conguration ...........................................................................35 Line Conguration ........................................................................36 Login.............................................................................................38 Logout ..........................................................................................38 Modem .........................................................................................38 Network ........................................................................................39 Orderwire......................................................................................40 Performance.................................................................................40 Redundant....................................................................................41 Remote Status..............................................................................42 RF Conguration ..........................................................................42 6.0 CONFIGURATION & CONTROL VIA THE CONSOLE PORT .. 43 6.1 Introduction ....................................................................................43 6.2 Initial Connection to the CONSOLE Port .......................................44 6.3 NMS Commands ............................................................................44 6.4 Command Detailed Descriptions ...................................................47 Introduction...................................................................................47 6.5 Disabling the Front Panel Alarm LED for Unused E1 Option Ports ..............................................................................................89 7.0 STANDARDIZING RADIO CONFIGURATIONS ........................ 90 7.1 Introduction ....................................................................................90 7.2 Setup by TFTP ...............................................................................91 Downloading Procedure ...............................................................91 ii LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C Uploading Procedure....................................................................91 7.3 Setup Through the DB-9 CONSOLE Port ......................................92 8.0 UPGRADING LEDR FIRMWARE .............................................. 93 8.1 Introduction ....................................................................................93 8.2 OPTION 1: Uploading Firmware via the CONSOLE Port ...............94 Setup............................................................................................94 Download Procedure....................................................................94 Verication and Reboot ................................................................95 8.3 OPTION 2: Uploading Firmware Locally by Telnet via Ethernet .....95 Setup............................................................................................96 Download Procedure....................................................................96 Verication and Reboot ................................................................97 8.4 OPTION 3: Uploading Firmware from a Remote Server via Ethernet ..................................................................................97 Setup............................................................................................97 Download Procedure....................................................................98 Verication and Reboot ................................................................99 9.0 USING ORDERWIRE ................................................................ 99 9.1 Introduction ....................................................................................99 9.2 Setup ..............................................................................................99 9.3 Operation .....................................................................................100 9.4 Related NMS Commands ............................................................101 10.0 USING THE SERVICE CHANNEL......................................... 101 10.1 Concept ......................................................................................101 10.2 Setup ..........................................................................................102 10.3 Usage .........................................................................................102 10.4 NMS Commands ........................................................................103 11.0 PROTECTED CONFIGURATION .......................................... 103 11.1 Introduction ................................................................................103 11.2 Protected Operation ...................................................................104 Transmitter Failure......................................................................105 Receiver Failure .........................................................................105 11.3 Conguration Options ................................................................105 1+1 OperationWarm or Hot Standby ......................................105 Symmetrical or Asymmetrical Receiver Splitters........................106 11.4 PSC Rear Panel Connectors .....................................................106 RxA.............................................................................................106 RxB.............................................................................................106 Antenna......................................................................................106 TxA.............................................................................................107 TxB.............................................................................................107 Protected (Data).........................................................................107 E1...............................................................................................107 Ethernet......................................................................................107 MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide iii 530 (A&B)...................................................................................107 EIA-530-A...................................................................................107 Service Channel.........................................................................107 11.5 Inter-Unit Cabling for Protected Stations ....................................108 11.6 Conguration Commands for a Protected System .....................108 Redundant Specic Parameters.................................................109 Sample Redundant Conguration Session ................................109 Transmit Clock Selection (Subrate Models Only) .......................110 12.0 SPACE DIVERSITY OPERATION ......................................... 112 12.1 Introduction ................................................................................112 12.2 User Interface & Control .............................................................112 12.3 Transmit Clock Selection ............................................................112 12.4 Inter-Unit Cabling for Space Diversity Stations ..........................113 13.0 SPARE PARTS, UNITS AND ACCESSORIES ...................... 115 13.1 Spares ........................................................................................115 13.2 Accessories ................................................................................116 14.0 Fractional-T1 INTERFACE CARD 03-3846A01 Fractional-E1 INTERFACE CARD 03-3846A02..................... 117 14.1 Introduction ................................................................................117 14.2 Fractional-T1/E1 Performance ...................................................117 14.3 Congurable Parameters ...........................................................117 Timeslots and Framing...............................................................117 Line Codes .................................................................................118 Diagnostics.................................................................................118 Clocking......................................................................................119 14.4 Field Installation of the FT1 Interface Board ..............................119 15.0 INCREASE BANDWIDTH BY CHANGING TRANSMITTER &

RECEIVER FILTERS............................................................. 122 15.1 Introduction ................................................................................122 15.2 Filter Removal and Replacement ...............................................122 15.3 Software Commands ..................................................................124 16.0 BENCH TESTING OF RADIOS ............................................. 124 17.0 TECHNICAL REFERENCE ................................................... 125 17.1 Specications Models: LEDR 400S, LEDR 900S & LEDR 1400S ..............................125 17.2 Specications Models: LEDR 400F, 900F, 1400F ........................................................127 17.3 Specications Protected Switch Chassis ....................................................................128 17.4 Optional Equipment (Consult factory for details) ........................128 17.5 Accessories ................................................................................129 iv LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C 17.6 I/O Connector Pinout Information ...............................................129 OrderwireFront Panel..............................................................129 CONSOLE PortFront Panel ....................................................129 EthernetRear Panel ................................................................130 EIA-530-A DataRear Panel.....................................................130 G.703 Data Connectors (4)Rear Panel...................................130 Service ChannelRear Panel ...................................................131 AlarmRear Panel ....................................................................131 17.7 Watts-dBm-Volts Conversion ......................................................132 18.0 RADIO EVENT CODES......................................................... 132 19.0 IN CASE OF DIFFICULTY ..................................................... 140 19.1 FACTORY TECHNICAL ASSISTANCE ......................................140 19.2 FACTORY REPAIRS ..................................................................140 Copyright 2001 Copyright Notice This document and all software described herein are protected by copy-

right. reserved. Trademarks held by other companies used in this publication are acknowledged to be property of the holder. Antenna Installation Warning

, Microwave Data Systems Inc. All rights RF Exposure 1. All antenna installation and servicing is to be performed by qualied technical personnel working at distances closer than those listed below, transmitter has been disabled. only. When servicing the antenna, or ensure the 2. Typically, the antenna connected to the transmitter is a directional

(high gain) antenna, xed-mounted on the side or top of a building, or on a tower. Depending upon the application and the gain of the antenna, the total composite power could exceed 20 to 50 watts EIRP. The antenna location should be such that only qualied tech-

nical personnel can access it, and that under normal operating condi-

2.68 tions no other person can touch the antenna or approach within meters of the antenna. Antenna Gain vs. Recommended Safety Distance

(LEDR 400 Series) Station Antenna Gain (LEDR 400 Series) 05 dBi 510 dBi 1020 dBi 2030 dBi 0.15 meter 0.26 meter 0.85 meter 2.68 meters Minimum RF Safety Distance MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide v Antenna Gain vs. Recommended Safety Distance

(LEDR 900 Series) Antenna Gain (LEDR 900 Series) 05 dBi 510 dBi 1020 dBi 2030 dBi 0.1 meter 0.17 meter 0.54 meter 1.71 meters Minimum RF Safety Distance Antenna Gain vs. Recommended Safety Distance

(LEDR 1400 Series) Antenna Gain (LEDR 1400 Series) 05 dBi 510 dBi 1020 dBi 2030 dBi 0.1 meter 0.13 meter 0.42 meter 1.32 meter Minimum RF Safety Distance Accuracy of Documentation While every reasonable effort has been made to ensure the accuracy of this manual, product improvements may result in minor differences between the manual and the product shipped to you. If you have addi-

tional questions or need an exact specification for a product, please con-

tact our Technical Services group using the information at the back of this guide. Microwave Data Systems reserves its right to correct any errors and omissions. Updated information may also be available on our Web site at www.microwavedata.com

. Distress Beacon Warning In the U.S.A., the 406 to 406.1 MHz band is reserved for use by distress beacons. Since the LEDR 400 radio is capable of transmitting in this band, take precautions to prevent the radio from transmitting between 406 to 406.1 MHz. RF Emissions This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules or ETSI specification ETS 300 385, as appropriate. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equip-

ment in a residential area may to cause harmful interference in which case the user will be required to correct the interference at his own expense. Changes or modifications not expressly approved by the party respon-

sible for compliance could void the users authority to operate the equip-

ment. vi LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C 1.0 INTRODUCTION This manual is intended to help an experienced technician install, con-

figure, and operate one of the digital radios in the MDS LEDR Series:

400S/F, 900S/F or 1400S/F. The manual begins with an overall descrip-

tion of product features and is followed by the steps required to mount the radio and place it into normal operation. After installation, we suggest keeping this guide near the radio for future reference. 1.1 Product Description The LEDR radio (Figure 1) is a full-duplex, point-to-point digital radio operating in one of three radio frequency bands and at several band-

widths as summarized in Table 1. Table 1. Key LEDR Radio Characteristics MODEL(S) BANDWIDTH(S) FREQ. RANGE INTERFACE LEDR 400S 25/50/100/200 kHz 330-512 MHz LEDR 400F 0.5/1/2 MHz 330-512 MHz LEDR 900S 25/50/100/200 kHz 800-960 MHz LEDR 900F 0.5/1/2 MHz 800960 MHz EIA-530 E1/G.703 EIA-530 or FT1/G.703 E1/G.703 LEDR 1400S 25/50/100/200 kHz 13501535 MHz EIA-530 LEDR 1400F 0.5/1/2 MHz 13501535 MHz E1/G.703 With the addition of an optional Fractional-T1 Interface card, a LEDR 900S Series radio can be connected to industry-standard G.703 T1 data interface equipment. See Page 117 for a complete description of the Fractional-T1, Fractional-E1 and Full Rate E1 options. All LEDR Series radios are available in a protected 1+1 configuration

(Figure 2). The protected configuration consists of two identical LEDR radios and a Protected Switch Chassis. The protected configuration is designed to perform automatic switchover to a secondary radio in the event of a failure in the primary unit. See PROTECTED CONFIGURA-

TION on Page 103 for detailed information on the protected version. In addition, the LEDR Series is available in a space-diversity configura-

tion to allow dual receive paths to improve system availability. MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 1 1.2 LEDR Features General Common to all models Network Management via SNMPc version 1 Protected Operation (1+1) Compatible 1.0 Watt Transmit Power Space-Efficient Rack Size (1RU) Rugged, Reliable Design Voice Orderwire (DTMF compliant) Service Channel (Data) Subrate ModelsLEDR 400S/900S/1400S 64, 128, 256, 384, 512 and 768 kbps Data Rates 12 x 64 kbps Data Rate with the FT1 or FE1 Interface Board

(LEDR radio with optional PCB installed) Fullrate ModelsLEDR 400F/900F/1400F 1 x E1 to 4 x E1 data rates Invisible place holder Figure 1. The LEDR Digital Radio (Non-Protected Version) 1.3 Typical Applications Point-to-point transmission applications Cost-effective, thin route applications Long haul telecommunications links Cellular backhaul Last-mile links Trunked radio links SCADA systems 2 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C 1.4 Protected Configuration A second configuration of the LEDR Series radios is the protected con-

figuration in which two LEDR radios are monitored and controlled by a third unit, the Protected Switch Chassis (PSC). The PSC provides a gateway for data and radio frequency paths to the LEDR data radio transceivers. Unit performance is continuously measured and should it fall below user definable standards, the off-line LEDR radio will be placed on-line and an alarm condition generated that can be remotely monitored. Figure 2 shows a front view of the Protected version arrangements. Details on the Protected Configuration hardware and set-up can be found in Section 11.0 on page 103. Invisible place holder Figure 2. LEDR Digital Radio (Protected Version) MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 3 2.0 MODEL NUMBER CODES The radio model number is printed on the serial number label affixed to the chassis. The following series of figures (Figure 3, Figure 4 and Figure 5) show the significance of each character in the model number strings. Contact the factory for specific information on optional config-

urations. MODEL NUMBER CODES ARE SUBJECT TO CHANGE. DO NOT USE FOR ORDERING PRODUCTS. DUPLEXER N = None (Optional External) *

1 = 300400 MHz *

2 = 400520 MHz *

3 = 300400 MHz; Protected @

4 = 400520 MHz; Protected @

5 = 300400 MHz; Space Diversity #

6 = 400520 MHz; Space Diversity #

* Only available with Modes N, 2

@Only available with Modes 3, 5

#Only available with Modes 6, 8 CLASS S =Subrate F =Fullrate LLLLEEEEDDDDRRRR 444400000000 PROTECTED/STANDBY N = None *

W= Warm @

H = Hot @

* With Modes N, 2

@ With Modes 38 MODES N = None; EIA -530 *

1 = Not Used 2 = None; E1/Fractional-E1 3 = 1 + 1 EIA-530 *

4 = Not Used 5 = 1 + 1 E1/Fractional-E1 6 = Space Diversity EIA-530 *

7 = Not Used 8 = Space Diversity E1/Fract. E1

* Available in subrate radios

% Available in fullrate radios Invisible place holder INPUT VOLTAGE 1 = 24 Vdc 2 = 48 Vdc BANDWIDTH A = 25 kHz *

B = 50 kHz *

C = 100 kHz *

D = 200 kHz *

E = 500 kHz @

F = 1 MHz @ %

G = 2 MHz @ %

% See Note 2

@Only available with Fullrate radios

* Only available with Subrate radios RECEIVE FREQ. 1 = 330380 MHz 2 = 380400 MHz 3 = 400462 MHz 4 = 462512 MHz See Notes 1 & 2 REGULATORY CERTIFICATION N =Not Applicable F =FCC/IC RX SPLITTER N = None *

A = Asymmetrical 1 dB /10 dB @

S = Symmetrical 3 dB @

* With Modes N, 2

@ With Modes 38 TRANSMIT FREQ. A = 330380 MHz B = 380400 MHz C = 400462 MHz D = 462512 MHz See Notes 1 & 2 NOTES 1.TX and RX frequencies are limited to the range of the subband indicated in fields 10 and 11. 2.TX and RX frequency separation is 27 MHz (minimum) for values of F & G. Figure 3. LEDR 400 Series Model Number Codes 4 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C Invisible place holder INPUT VOLTAGE 1 = 24 Vdc 2 = 48 Vdc BANDWIDTH A = 25 kHz *%

B = 50 kHz *%

C = 100 kHz *%

D = 200 kHz%

E = 500 kHz@

F = 1 MHz@

G = 2 MHz@

* = Not available with Modes 1, 4, 7

% = Only available in subrate radios

@ = Only available in fullrate radios RECEIVE FREQ. 1 = 800860 MHz 2 = 860900 MHz 3 = 900960 MHz See Note 1 REGULATORY CERTIFICATION N =Not Applicable F =FCC/IC RX SPLITTER N = None *

A = Asymmetrical 1 dB /10 dB @

S = Symmetrical 3 dB @

* With Modes N, 1

@With Modes 38 TRANSMIT FREQ. A = 800860 MHz B = 860900 MHz C = 900960 MHz See Note 1 NOTES 1.TX and RX frequencies are limited to the range of the subband indicated in fields 10 and 11. DUPLEXER N = None (Optional External) *

1 = 9 MHz *

2 = 3.6 MHz (External) None *

3 = 760 MHz; None *

4 = 9 MHz; (Internal) Redundant @

5 = 3.6 MHz; (External) Redundant @

6 = 76 MHz; (Internal) Redundant @

7 = 9 MHz; (Internal) Space Diversity #

8 = 3.6 Mhz; (Internal) Space Diversity #

9 = 76 MHz; (Internal) Space Diversity #

* Only available with Modes N, 1

@Only available with Modes 3, 4

#Only available with Modes 6, 7 CLASS S = Subrate F = Fullrate LLLLEEEEDDDDRRRR 999900000000 PROTECTED/STANDBY N = None *

W= Warm @

H = Hot @

* With Modes N, 2

@ With Modes 38 MODES N = None; EIA-530*

1 = None; Fractional-T1*

2 = None; Fractional-E1%

3 = 1 + 1 EIA=530*

4 = 1 + 1 Fractional-T1*

5 = 1 + 1 Fractional-E1 6 = Space Diversity EIA-530 7 = Space Diversity T1 8 = Space Diversity; Fractional-E1

* = Available in subrate radios

% = Available in fullrate radios MODEL NUMBER CODES ARE SUBJECT TO CHANGE. DO NOT USE FOR ORDERING PRODUCTS. Figure 4. LEDR 900 Series Model Number Codes MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 5 Invisible place holder MODEL NUMBER CODES ARE SUBJECT TO CHANGE. DO NOT USE FOR ORDERING PRODUCTS. DUPLEXER N = None (Optional External) &

R = None (Wired for External) Redundant *

1 = Internal &

2 = Internal; Space Diversity %

* Only available with Modes 3, 5

%Only available with Modes 6, 8

&Only available with Modes N, 2 CLASS S =Subrate F =Fullrate LLLLEEEEDDDDRRRR 1111444400000000 MODES N = None; EIA=530 *

1 = Not Used 2 = None; E1/ Fractional-E1 3 = 1 + 1 EIA-530 *

4 = Not Used 5 = 1 + 1 E1/ Fractional-E1 6 = Space Diversity EIA-530 *

7 = Not Used 8 = Space Divers. E1/Frac. E1

* Available in subrate radios

% Available in fullrate radios INPUT VOLTAGE 1 = 24 Vdc 2 = 48 Vdc BANDWIDTH A = 25 kHz *

B = 50 kHz *

C = 100 kHz *

D = 200 kHz *

E = 500 kHz @

F = 1 MHz @

G = 2 MHz @

@Only available with Fullrate radios

* Only available with Subrate radios REGULATORY CERTIFICATION N =Not Applicable E =ETS 300 630, ETS 300 385, MPT 1717 PROTECTED/STANDBY N = None *

W= Warm @

H = Hot @

* With Modes N, 2

@With Modes 38 RX SPLITTER N = None *

A = Asymmetrical 1 dB /10 dB @

S = Symmetrical 3 dB @

* With Modes N, 2

@With Modes 38 Figure 5. LEDR 1400 Series Model Number Codes 6 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C 3.0 HARDWARE INSTALLATION AND BASIC INTERFACE REQUIREMENTS 3.1 Introduction Installation of the LEDR radio transceiver is not difficult, but it does require some planning to ensure optimal efficiency and reliability. There are two major installation objectives; first, obtain good radio communi-

cations between LEDR sites, and second, configure the data interface to complement your data equipment. This section provides information to assist you in successfully com-

pleting the first phase of installation. You will find tips for selecting an appropriate site, choosing antennas and feedlines, minimizing the chance of interference, and the basics of equipment installation. This material should be reviewed before beginning the radio hardware equip-

ment installation. When the radio installation is successfully complete, you will need to address the data interface and operational configuration of the LEDR radio. It is likely that the radio has been configured by the factory to meet your basic data interface requirements. Please review the factory documentation accompanying your shipment for the radios current con-

figuration. What ever your situation, it is recommended you review the material in the rest of the manual to gain insight to additional configuration options and user functions. 3.2 General Requirements There are four main requirements for installing the radio transceivera suitable installation environment, adequate and stable primary power, a good antenna system, and the correct interface between the transceiver and the external data equipment. Figure 6 shows a typical station arrangement. MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 7 Invisible place holder DATA INTERFACE TO DC POWER SOURCE

(24 or 48 Vdc as appropriate) GRID DISH ANTENNA LOW LOSS COAXIAL CABLE Figure 6. Typical Station Arrangement Site Selection For a successful installation, careful thought must be given to selecting proper sites for the radios and antenna systems. Suitable sites should offer:

An antenna location that provides an unobstructed path in the direction of the associated station A source of adequate and stable primary power Suitable entrances for antenna, interface or other required cabling Adequate clearance around the radio for ventilation These requirements can be quickly determined in most cases. A possible exception is the first itemverifying that an unobstructed transmission path exists. Microwave radio signals travel primarily by line-of-sight, and obstructions between the sending and receiving stations will affect system performance. If you are not familiar with the effects of terrain and other obstructions on radio transmission, the following discussion will provide helpful background. Terrain and Signal Strength A line-of-sight path between stations is highly desirable, and provides the most reliable communications link in all cases. A line-of-sight path can often be achieved by mounting each station antenna on a tower or other elevated structure that raises it to a level sufficient to clear sur-

rounding terrain and other obstructions. 8 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C The requirement for a clear transmission path depends upon the distance to be covered by the system. If the system is to cover only a limited dis-

tance, say 5 km (3.1 miles), then some obstructions in the transmission path may be tolerable. For longer-range systems, any obstruction could compromise the performance of the system, or block transmission entirely. The signal strength at the receiver must exceed the receiver sensitivity by an amount known as the fade margin to provide reliable operation under various conditions. Detailed information on path planning should be reviewed before begin-

ning an installation. Computer software is also available for this purpose that can greatly simplify the steps involved in planning a path. Microwave Data Systems offers path analysis (for paths in the USA) as an engineering service. Contact the factory for additional information. On-the-Air Test If youve analyzed the proposed transmission path and feel that it is acceptable, an on-the-air test of the equipment and path should be con-

ducted. This not only verifies the path study results, but allows you to see firsthand the factors involved at each installation site. The test can be performed by installing a radio at each end of the pro-

posed link and checking the Received Signal Strength Indication (RSSI) value reported at the front panel LCD screen of each radio. If adequate signal strength cannot be obtained, it may be necessary to mount the sta-

tion antennas higher, use higher gain antennas, or select a different site for one or both stations. A Word About Interference Interference is possible in any radio system. However, since the LEDR radio is designed for use in a licensed system, interference is less likely because frequency allocations are normally coordinated with consider-

ation given to geographic location and existing operating frequencies. The risk of interference can be further reduced through prudent system design and configuration. Allow adequate separation between frequen-

cies and radio systems. A carrier to interference (C/I) curve can help in frequency and space coordination. The information in this curve can aid greatly in helping plan geographic locations and frequency usage for radio systems. Con-

tact the factory for additional information on carrier to interference curves. A white paper on the subject is available on request. Ask for Publication No. 05-3638A01. C/I Curves MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 9 Keep the following points in mind when setting up your point-to-point system:

1. Systems installed in lightly populated areas are least likely to encounter interference; those in urban and suburban environments are more likely to be affected by other devices operating in the radios frequency band and adjacent services. 2. Directional antennas must be used at each end of a point-to-point link. They conne the transmission and reception pattern to a com-

paratively narrow beam, which minimizes interference to and from stations located outside the pattern. The larger the antenna, the more focused the transmission and reception pattern and the higher the gain. 3. If interference is suspected from another system, it may be helpful to use antenna polarization that is opposite to the interfering sys-

tems antennas. An additional 20 dB (or more) of attenuation to interference can be achieved by using opposite antenna polarization. Refer to the antenna manufacturers instructions for details on changing polarization. 3.3 Antenna and Feedline Selection Antennas The antenna system is perhaps the most crucial part of the system design. An antenna system that uses poor quality feedline, or is improp-

erly aligned with the companion site, will result in poor performance, or no communication at all. A directional antenna must be used for point-to-point systems to mini-

mize interference both to and from nearby systems. In general, cylin-

drical or dish type antennas with a parabolic reflector must be used. Yagi or corner reflector types may be acceptable in some applications. Check government regulations for your region. The exact style of antenna used depends on the size and layout of a system. In most cases, a directional dish type of antenna is used with the radio (Figure 7). Dish antennas maximize transmission efficiency and restrict the radiation pattern to the desired transmission path. 10 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C Invisible place holder Figure 7. Typical Grid Dish Antenna Table 2 lists common grid dish antenna sizes and their approximate gains. Note: Each antenna is designed to operate within only one fre-

quency band. Table 2. Dish antenna size versus gain (dBi) Antenna Size Meters (feet) 1.2 meters

(4 feet) 2.0 meters

(6 feet) 3.0 meters

(10 feet) 4.0 meters

(12 feet) 400 MHz Gain 13.1 dBi 900 MHz Gain 18.4 dBi 1400 MHz Gain 23.7 dBi 16.3 dBi 22.0 dBi 26.1 dBi 19.6 dBi 26.4 dBi 30.6 dBi 22.2 dBi 28.0 dBi 32.1 dBi MDS can furnish antennas for use with your LEDR radio. Consult your sales representative for details. Feedlines For maximum performance, a good quality feedline must be used to connect the radio transceiver to the antenna. For short-range transmis-

sion, or where very short lengths of cable are used (up to 8 meters/26 feet), an inexpensive coax cable such as Type RG-213 may be accept-

able. For longer cable runs, or for longer-range communication paths, we rec-

ommend using a low-loss cable suited for the frequency band of opera-

tion. Helical transmission lines, such as Andrew Heliax or other high-quality cable will provide the lowest loss and should be used in systems where every dB counts. Whichever type of cable is used, it should be kept as short as possible to minimize signal loss. MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 11 The following tables (3, 4 & 5) can be used to select an acceptable feed-

line. A table is provided for each of the three bands for which the LEDR radios are available. Table 3. Feedline Loss Table (450 MHz) Cable Type RG-8A/U 1/2 in. HELIAX 7/8 in. HELIAX 1-1/4 in. HELIAX 1-5/8 in. HELIAX 3.05 Meters

(10 Feet) 15.24 Meters

(50 Feet) 30.48 Meters

(100 Feet) 152.4 Meters

(500 Feet) 0.51 dB 0.12 dB 0.08 dB 0.06 dB 0.05 dB 2.53 dB 0.76 dB 0.42 dB 0.31 dB 0.26 dB 5.07 dB 1.51 dB 0.83 dB 0.62 dB 0.52 dB 25.35 dB 7.55 dB 4.15 dB 3.10 dB 2.60 dB Table 4. Feedline Loss Table (960 MHz) 3.05 Meters

(10 Feet) 15.24 Meters

(50 Feet) 30.48 Meters

(100 Feet) 152.4 Meters

(500 Feet) Cable Type RG-8A/U 1/2 in. HELIAX 7/8 in. HELIAX 1-1/4 in. HELIAX 1-5/8 in. HELIAX 0.85 dB 0.23 dB 0.13 dB 0.10 dB 0.08 dB 4.27 dB 1.15 dB 0.64 dB 0.48 dB 0.40 dB 8.54 dB 2.29 dB 1.28 dB 0.95 dB 0.80 dB Table 5. Feedline Loss Table (1400 MHz) Cable Type RG-213 1/2 in. HELIAX 7/8 in. HELIAX 1-5/8 in. HELIAX 8 Meters

(26 Feet) 15 Meters

(49 Feet) 3.0 dB 0.73 dB 0.42 dB 0.26 dB 6.03 dB 1.47 dB 0.83 dB 0.26 dB 30 Meters

(98 Feet) 12.05 dB 2.93 dB 1.66 dB 1.05 dB 42.70 dB 11.45 dB 6.40 dB 4.75 dB 4.00 dB 61 Meters

(200 Feet) 24.1 dB 5.9 dB 3.32 dB 2.1 dB 3.4 Radio Mounting The radio can be mounted either in a 19-inch equipment rack or on a table top. It should be located in a relatively clean, dust-free environ-

ment that allows easy access to the rear panel connectors as well as front panel controls and indicators. Air must be allowed to pass freely over the ventilation holes and heat sink on the side panel. The dimensions of LEDR Series radios are:

305 mm (12 in) deep 426 mm (16.75 in) wideExcluding rack mounting brackets 45 mm (1.75 in) high1RU 12 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C Maximizing RSSI For newly installed systems, one of the first tasks is to orient the station antenna for a maximum Received Signal Strength Indication (RSSI) as shown on the LCD screen. See Performance on Page 40 for details. A maximum RSSI ensures the antenna is properly aimed at the associated station. Move the antenna slowly while an assistant observes the RSSI display for a maximum reading. Attaching the Rack Mounting Brackets The radio is normally shipped with the rack mounting brackets unin-

stalled. To attach them, select the desired mounting position on the sides of the chassis. (The brackets may be mounted flush with the front panel, or near the middle of the chassis.) NOTE: Both short and long screws are provided with the brackets. Use the long screws for the heatsink (left) side of the chassis and the short screws for the right side of the chassis. Tighten the screws securely. 3.5 Front Panel Indicators, Text Display and Navigation Keys Figure 8 shows the details of the LEDR radios front panel indicators, an LCD text display and a menu navigation keys. LCD TEXT DISPLAY MENU NAVIGATION KEYS STATUS LEDS SCROLL MODE INDICATOR SYMBOL ALARM STATUS LEDS Figure 8. Front Panel Indicators, Text Display and keys MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 13 LED Indicators The front panel LEDs indicate various operating conditions as outlined in Table 6. Table 6. Front Panel LED Functions LED POWER ACTIVE ALARM RX ALARM TX ALARM I/O ALARM Indications Primary power is applied to radio This radio is the on-line/active unit in a redundant configuration. A general alarm condition is present The modem is not locked to a receive signal There is a problem with the transmitter There is a payload data interface error LCD Display

& Keys The LCD display provides a two line by 16-character readout of radio status and parameter settings. It is used with the menu navigation keys on the right side of the front panel to control the radios operation and access diagnostic information. Use of the navigation keys (Figure 9) is simple, and allows many basic operating tasks to be performed without connecting an external terminal or using additional software. Invisible place holder Menus Figure 9. Menu Navigation Keypad The keys can be used for two tasksnavigating though menus, and editing user controllable parameters. The functions of the keys are auto-

matically selected according to the screen that is being viewed by the user. The LEDR radio contains 16 primary menus as listed below. These pri-

mary menus serve as entry points to a variety of submenus that can be used to view or adjust operating parameters and diagnose the radio link. Login Logout Network General RF Cong(uration) IO Cong(uration) Line Cong(uration) Performance G.821 Diagnostics Orderwire Front Panel Redundant Remote Status 14 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C Detailed descriptions of each front panel LCD display is covered in-depth later in this manual. For details, see Front Panel LCD Menu Descriptions on Page 32. Menu Navigation

) provide navigation through the available The left and right keys (

top level menus (see menu tree, Figure 9) and through series of subordi-

nate menus. ENTER key allows entry into each primary menus subordinate The menus, exposing another menu level. The rent screen, causing the program to pop up one level. key always exits the cur-

ESCAPE Parameter Selection and Data Entry With an editable menu, such as Login, pressing the key puts the screen into a data entry mode. Front panel keys are used in one of three ways: A. character and string creation/selection, B. scrolling through lists, and C. adjusting horizontal slider bars. ENTER A. Character and String Creation/Selection With some menus, it is necessary to enter a string of alphanumeric charac-

ters. A good example is entering a password at the user login menu. In this example, the string is built one character at a time, and the string is built from left to right on the display. ENTER The left and right arrow keys move the cursor in the corre-

sponding direction. When the cursor is below the character you wish to change, press

. The arrow keys are then used to step though the character set, beginning with numbers, next upper-

case letters and finally lowercase letters. Each time you press one of the arrow keys, the display will step to the next character. If you press and hold the arrow key for several seconds, the char-

acters will scroll by very quickly. ENTER After you have built the string of characters you need, press the key to save the string on the display and return to cursor navigation mode. To save all changes you have made, place the cursor under the special carriage return symbol (

) and press ENTER

. Pressing ESCAPE igation mode. Pressing character edit mode without saving any changes. will revert the arrow keys to the cursor nav-

in cursor navigation mode cancels ESCAPE B. Scrolling Lists/Values Uses left and right keys (

) to scroll through a list of choices or adjust a numeric value, such as power output. When you are in a menu of with a series of fixed parameters, the vertical scroll character (

) will appear while you are in the editing/selection mode. If you are asked to select or change more than one character, you will see a horizontal scroll symbol (

and a cursor will appear under the character being edited or changed.

) in the bottom right-hand corner of the display MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 15 When the desired parameter is in view, move the cursor to the right as far as it will go, until a carriage return symbol (

appears. Pressing the if your access privileges permit. Pressing tion and exits without saving the change. key will save the selection to its left, cancels the selec-

ENTER

) ESCAPE C. Slider Bar AdjustmentSome menus display a horizontal bar that changes its length to indicate the level for parameters that use relative values such as the Orderwire Volume and VOX threshold. (See VOX and O/W on Page 40.) Pressing the key will increase the value and the will lower the value. Pressing saves the current setting. ENTER Connectors The front panel of the LEDR radio (Figure 10) has two connectors; both of them are located on the lefthand side of the panel. The RJ-11 jack with the telephone symbol above it is to connect an orderwire handset. The orderwire is used by service personnel to com-

municate through the Service Channel to coordinate system activities with personnel at another site in the network. The orderwire will not interrupt the normal data flow through the LEDR data communication channel, however, it will reduce the throughput efficiency of any data communications on the Service Channel during periods of voice trans-

mission. See USING ORDERWIRE on Page 99 for more informa-

tion. Orderwire CONSOLE The second connector is a DB-9 type with a computer icon over it. Here is where you can connect a computers serial port for unit configuration, diagnostics and firmware upgrades to the radio. Invisible place holder ORDERWIRE HANDSET CONSOLE

(COMPUTER) Figure 10. LEDR Front Panel

(All models Identical.) 3.6 Rear Panel Connectors The rear panel of the LEDR radio transceiver contains a number of con-

nectors to interface with the radios antenna system, data equipment, and user remote data network monitoring and control equipment. 16 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C Connector Locations LEDR S Series The rear panel of the LEDR S Series radios is shown in Figure 11. Refer to the descriptions that follow for specific information regarding rear panel connections. Four RJ-45 connectors with FT1/FE1 Interface PCB installed Only one RJ-45 port is active based on selection. See linename command. DB-68 Connector for interface to Protected Switch Chassis If vacant, EIA-530 connector to right is the active data connector. ETHERNET Invisible place holder Power Plug Detail (see text) SERVICE CHANNEL RX Antenna/TX G.703/Expansion Data Ethernet NMS EIA-530-A Service Channel Alarm I/O DC Power Input External Duplexer 1 2 3 4 Data Interface ANTENNA SYSTEM CONNECTORS Note: RX Connector present with external duplexer only. COOLING FAN DATA CONNECTOR DC PRIMARY POWER ALARM INPUT & OUTPUT GND Figure 11. LEDR 400S/900S/1400S Rear Panels

(Shown with Optional FT1/FE1 Interface PCB Installed) LEDR F Series The rear panel of the LEDR F Series radios is shown in Figure 12. Refer to the descriptions that follow for specific information regarding rear panel connections. Four RJ-45 connectors DB-68 Connector for G.703 interface to Protected Switch Chassis. Invisible place holder Power Plug Detail (see text) SERVICE CHANNEL ETHERNET RX Antenna/TX G.703/Expansion Data Ethernet NMS EIA-530-A Service Channel Alarm I/O DC Power Input External Duplexer 1 2 3 4 Data Interface COOLING FAN ANTENNA SYSTEM CONNECTORS Note: RX Connector present with external duplexer only. DDDDAAAATTTTAAAA CCCCOOOONNNNNNNNEEEECCCCTTTTOOOORRRR

((((NNNNooootttt ffffuuuunnnnccccttttiiiioooonnnnaaaallll oooonnnn FFFF mmmmooooddddeeeellllssss)))) DC PRIMARY POWER ALARM INPUT & OUTPUT GND Figure 12. LEDR 400F/900F/1400F Rear Panel Ground Stud The ground stud on the rear panel provides a point to tie the radios chassis ground to earth ground for safety purposes. MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 17 Antenna/TXRF Connector The ANTENNA/TX connector is an N-type coaxial connector. When an internal duplexer is installed, it serves as the connection point for the station antenna. When an external duplexer is used, it acts as the trans-

mitter RF output (TX) connector to the duplexer. RXRF Connector The RX (receive) connector is an N-type coaxial connector. It is only installed if the radio is supplied for use with an external duplexer. It car-

ries receive signals (RX) from the duplexer to the LEDR radios receiver. When an external duplexer is used, ensure that the higher frequency

(transmit or receive) is connected to the duplexer connector marked HI and the lower frequency (transmit or receive) is connected to the duplexer marked LO. G.703/Expansion Data The type of connector(s) at this location on the rear panel depends on several factors: the type of interface required by the customer premises equipment (CPE) and whether or not the radio is part of a protected

(redundant) configuration. See Table 7 for details. Table 7. G.703/Expansion Data Connector Model(s) Configuration LEDR 400S LEDR 900S LEDR 1400S Stand-alone Data Interface EIA-530 G.703/Expansion Connector Blank. No connector(s) installed. LEDR 900S Stand-alone FT1 4 x RJ-45Only one port is active based on linename selection. (See Note 2) 4 x RJ-45Only one port is active based on linename selection. (See Note 2) 4 x RJ-45All four jacks (A, B, C & D) are active. (See Notes 1 & 2) Stand-alone FE1 Stand-alone 4E1 LEDR 400S LEDR 900S LEDR 1400S LEDR 400F LEDR 900F LEDR 1400F LEDR 400F/S LEDR 900S LEDR 1400F/S Protected All DB-68 (See Note 3) NOTES:

1. The capacity of the 4E1 interface can be reduced to one (1E1) or two circuits (2E1). See linemap command on Page 66, for configuration information. 2. For RJ-45 pinout information, see Figure 36 on Page 130. 3. This 68-pin interface connector is used only to pass the user data interface, the Service Channel, and the orderwire circuits to the Protected Switch Chassis for distribution. Fully-wired DB-68 computer cables (commonly used to interconnect SCSI devices) can be used with this data port connector. 18 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C Ethernet in a Repeater Configuration Ethernet in a Protected Configuration Ethernet The ETHERNET connector provides access to the embedded SNMP agent and other elements of the TCP/IP network-management interface. The connector is a standard 10Base-T connection with an RJ-45 mod-

ular connector. The LEDR Ethernet connections are provided for remote equipment management (NMS). At a repeater site with two LEDR radios, the ETHERNET connectors of each chassis must be connected to each other through a cross-connect cable or using standard cables to an Ethernet hub. This inter-chassis Ethernet connection must be made in order for the Orderwire and Ser-

vice Channel to function properly. (See Figure 13 on Page 20 for further information.) The Ethernet connections on the LEDR radio chassis in a protected con-

figuration should not be used. The Ethernet connector of the Protected Switch Chassis (PSC) provides a connection to the two radio units. Each radio has a unique IP address and is individually addressable/control-

lable using SNMP over IP. See PROTECTED CONFIGURATION on Page 103 for general information and Figure 34 on Page 130 for ETHERNET connector pinout. EIA-530-A The EIA-530-A connector is the main data input/output connector for the subrate radio. The EIA-530 interface is a high-speed serial data con-

nector. For detailed pin information, see EIA-530-A DataRear Panel on Page 130. NOTE: This connector is not operational on LEDR F Series (fullrate) models. Service Channel The Service Channel provides a transparent ASCII pipe to which any RS-232/EIA-232 device can be connected at data rates between 300 and 9600 bps. Whatever ASCII data is entered onto the network through the Service Channel Port will be sent to the local radio and broadcast to any other device connected to the Service Channel Port on other associated LEDR radios in the network. The Service Channels function is identical for all LEDR configura-

tionsstand-alone, repeater, and redundant. NOTE: Use of the orderwire will slow down data communications on the Service Channel. It will not effect data traffic on the primary data interface. For detailed information on this 9-pin connector, see Service ChannelRear Panel on Page 131. MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 19 Repeater Configuration Data and RF cabling for the repeater station configuration is shown in Figure 14. TO DUPLEXER OF ANTENNA SYSTEM A

(Radios with external duplexer) TO ANTENNA SYSTEM A

(Radios with internal duplexers) G.703/Expansion Data Ethernet NMS EIA-530-A Service Channel Alarm I/O DC Power Input RADIO A RX TX External Data Interface UP TO 4 x G.703 CROSSOVER CABLES

(Fullrate only) EIA-530 NULL-MODEM CROSSOVER CABLE

(Subrate Only) P/N 97-2841L06 (6/1.8 m) RADIO B G.703/Expansion Data Ethernet NMS EIA-530-A Service Channel Alarm I/O DC Power Input RX TX External Data Interface TO ANTENNA SYSTEM B

(Radios with internal duplexers) TO DUPLEXER OF ANTENNA SYSTEM B

(Radios with external duplexer) ETHERNET CROSSOVER CABLE OR SEPARATE CONNECTIONS TO HUB

(As Required) Protected Configuration Output Contacts Figure 13. Inter-unit CablingRepeater Configuration The Service Channel connections on the LEDR radio chassis in a pro-

tected configuration should not be used. The SERVICE CHANNEL con-

nector of the Protected Switch Chassis (PSC) provides a connection to the two radio units. For further information on protected configurations please see PROTECTED CONFIGURATION on Page 103. Alarm I/O This is a 9-pin connector that has both inputs and outputs. The ALARMS Port is outfitted with four optically-isolated relays that are controlled by the LEDR radios CPU. The contacts (Pins 6, 7, 8, & 9) are normally open and can handle a non-inductive load of 60 Volts Peak (AC/DC) at a maximum current of 1 Ampere. These are suitable for the control of an external device or indicator when a radio event occurs. An alarm output could be used, for example, to sound a claxon when the radio link goes down, or when the battery for the real-time clock is low. Another example is to use the alarm outputs to drive the inputs of an external monitoring system. (See the list of radio events for more options.) These outputs are not suitable for data interface without the use of an external debouncing circuit. 20 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C Input Connections In addition, four external alarm input lines (Pins 1, 2, 3 & 4) are pro-

vided. Normally, the input is either left open or shorted to ground, to indicate an alarm condition. Each alarm input is diode-clamped to +3.3 Vdc or chassis ground, and can tolerate inputs from -4 to +6 Vdc without drawing excessive current. If left open, each input is pulled up. To indicate an alarm condition, short the input pin to the ground provided on the alarm connector (Pin 5). The maximum DC loop resistance is 2 K. These alarm input lines can tol-

erate circuit bounce common with mechanical relays. NOTE: The normal (unalarmed) state of the contacts (open or closed) or input alarm state (high or low) can be selected by a software subcommand. See alarm on Page 49 for details. Alarm Events The events that cause alarm output signals can be configured in the radio software. See evmap on Page 57 for information on programming which events trigger an alarm. See Figure 38 on Page 131 for Alarm I/O pinout information. DC Power Input (Primary Power) The DC POWER INPUT connector is a three-pin keyed connector used to connect an external DC power source that will provide the units pri-

mary power. The DC power source can be connected with the negative lead connected to either the left or right pin of the chassis connector. The center conductor is not connected within the LEDR chassis. A label next to the connector will indicate the nominal voltage of the radio. Table 8 lists the actual operating voltage ranges. Table 8. Primary Power Input Options Nominal Voltage 24 Vdc 48 Vdc Operating Range 19.2 to 28.8 Vdc 38.4 to 57.6 Vdc Refer to the model number codes in Figure 3 to determine the radios power supply range. Before connecting primary power to the radio, verify that the source provides a voltage within the operating range. Improper voltages may damage the equipment. Permissible voltage limits are shown in Table 8. CAUTION CAUTION POSSIBLE EQUIPMENT PPPPOOOOSSSSSSSSIIIIBBBBLLLLEEEE EEEEQQQQUUUUIIIIPPPPMMMMEEEENNNNTTTT DDDDAAAAMMMMAAAAGGGGEEEE DAMAGE MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 21 Protected Configuration Connections There are several connections between the LEDR radio chassis and the Protected Switch Chassis. They include the primary data interface, RF, Ethernet, orderwire and Service Channel. Details on cabling and other items relating to the protected (redundant) configuration can be found in PROTECTED CONFIGURATION on Page 103. 3.7 Bandwidths, Data Rates and Modulation Types The hardware in the LEDR chassis is configured at the factory for a spe-

cific bandwidth. However, the modulation type and data rate can be changed provided the bandwidth is sufficient to support the modulation type and data rate. (If you need to change your radios bandwidth, please see INCREASE BANDWIDTH BY CHANGING TRANS-

MITTER AND RECEIVER FILTERS on Page 122 for details.) Use of the modem command (Page 72) and configuration ([argument]) code automatically sets the combination of data rate, bandwidth and modulation type if the radio is capable of supporting it Table 9 shows the combinations of radio bandwidth, data rates and mod-

ulation types that are available for subrate radios at the time of publica-

tion. Table 10 shows the combinations available for fullrate radios. Table 9. Subrate Bandwidth vs. Modem Selection Code Radio Bandwidth 25 kHz 50 kHz 100 kHz 200 kHz Configura-

tion Code Data Rate(s) Modulation B1 C1 A1 B2 A1 A2 B3 A1 A2 B3 B4 B5 C6 64 kbps 64 kbps 64 kbps 128 kbps 64 kbps 128 kbps 256 kbps 64 kbps 128 kbps 256 kbps 384 kbps 512 kbps 768 kbps 16-QAM 32-QAM QPSK 16-QAM QPSK QPSK 16-QAM QPSK QPSK 16-QAM 16-QAM 16-QAM 32-QAM 22 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C Table 10. Fullrate Bandwidth vs. Modem Selection Code Radio Bandwidth 500 kHz 1000 kHz 2000 kHz Configura-

tion Code Data Rate(s) Modulation C7 B7 C7 C8 A7 B7 B8 C8 C10 E1 E1 E1 2E1 E1 E1 2E1 2E1 4E1 32-QAM 16-QAM 32-QAM 32-QAM QPSK 16-QAM 16-QAM 32-QAM 32-QAM 3.8 Transmit Clock Selection (Subrate Radios Only) For a subrate radio, transmit clock arrangement must be set by the user. Clocking arrangements for fullrate radios is automatically handled by the LEDR radios. It is essential that there be only one master clock in a subrate radio net-

work. The master clock can originate from the radio or from the Cus-

tomer Premises Equipment (CPE). LEDR radios are capable of several different clocking modes. Refer to Figure 14 and Figure 24 for typical system clocking arrangements. Refer to the CCCClllloooocccckkkk MMMMooooddddeeee screen description on Page 35 for setting the radio transmit clocking from the front panel. Refer to the clkmode description on Page 54 for setting the radio transmit clocking mode from the front panel CONSOLE Port. NOTE: When customer premises equipment (CPE) is operated in looped clock mode, it is recommended that the radio not be set to line clock mode. To do so may cause the transmitting radios PLL to be pulled out-of-lock, especially when oper-

ating at 4E1 data rates. MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 23 SITE A SITE B CPE CPE Customer Premises Equipment (CPE) LEDR Radio Clock Source Over-the-Air RF Path LEDR Radio Clock Source Customer Premises Equipment (CPE) Internal Clock External Clock Looped Clock External Clock External Clock Internal Clock Looped Clock External Clock Figure 14. EIA-530 Clocking Arrangements for Protected (1+1) LEDR Radio Operation 4.0 INITIAL STARTUP AND CONFIGURATION 4.1 Introduction The radio is commonly configured to parameters provided by the cus-

tomer at the time the order was placed. Even so, there are some param-

eters that must be reviewed and set during the installation. The following steps summarize the initial set-up of a LEDR radio link. If this is your rst installation of a LEDR radio system, it is recommended the equipment be setup on a test bench. 4.2 STEP 1Power up the LEDR Radios There is no primary power switch; simply connecting primary power to the unit will start the radio operating. After a short self-test, a default screen similar to the following appears on the radios LCD display:

LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk RRRRSSSSSSSSIIII:::: ----66660000 ddddBBBBmmmm NOTE: The LEDR radio is normally keyed continuously, and the radio will transmit whenever power is applied. Ensure there is a suit-

able load on the antenna connector before connecting power. 24 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C 4.3 STEP 2Establish Communications with the Radio There are four different methods available to set radio parameters and query the radio. They are:

Front PanelThe front panel is intended to serve as a conve-

nient user interface for local radio management. Most, but not all, parameters and functions are accessible from the front panel. (See Front Panel LCD Menu Descriptions on Page 32.) NMS (Network Management System)The NMS is used via a terminal connected to the front panel CONSOLE Port. It may be used to configure and query every manageable radio param-

eter on a given network using the out-of-band Service Channel. The Element Management System (EMS) may be used on the local radio (login command) or through any remote radio in the network using the rlogin command. TelnetA standard network application protocol which pro-

vides a NMS-type interface to configure and query most radio parameters. SNMP Network Management SystemThe SNMP agent interface is optimized to fulfill the fault configuration, perfor-

mance and user access requirements of the LEDR radio system. A separate manual, P/N 05-3532A01 explains SNMP in more detail. 4.4 STEP 3Make Initial Login to Radio When the radio is first powered up, it defaults to a read-only condition. That is, the radio parameters may be viewed, but cannot be changed. To enable changes to radio settings, a valid user name and password must be entered. When the radio is shipped from the factory, it is pre-programmed with the following temporary login credentials:

Username:SUPER Password:SUPER NOTE: User names and passwords are case sensitive. Do not use punc-

tuation mark characters. Use a maximum of eight characters. Navigation Key Method To log in from the front panel using the temporary credentials, follow these steps:

1. Go to the Login screen and press the front panel Username screen appears with SUPER displayed. ENTER key. The MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 25 2. Press the ENTER key again to access the Password screen. Use the arrow keys to scroll through the list of characters and individually select the letters spelling out the word SUPER. Press character selection. (For more information on character selection using the navigation keys, see INITIAL STARTUP AND CON-

FIGURATION on Page 24.) ENTER after each 3. When all of the characters have been entered, press again. The screen briey displays Login Success and returns to the Login entry screen. ENTER The user may now access any of the screens shown in Figure 15 with Administrator level privileges (the highest allowable user level). CONSOLE Method To login using a terminal connected to the front panel CONSOLE Port, follow the steps below. 1. Connect a terminal data port or a PCs serial port to the radios front panel CONSOLE Port

. 2. Open an ANSI terminal program, such as HyperTerminal in the

. The LEDR> prompt should appear on ENTER Windows O/S. Press the terminals display. 3. Enter login SUPER. The Password > prompt will appear. 4. Enter the password SUPER. The following response appears: login:

SUPER logged in. The user may now access any of the NMS commands listed in Table 14 on Page 44 with Administrator level privileges (the highest allowable user level). 4.5 STEP 4Change the SUPER Password The factory-programmed username and password (SUPER) is provided to enable a System Administrator to operate a newly installed radio. It is highly recommended that the password for SUPER be changed as soon as possible to maintain system security. Follow these steps to change the factory-programmed password. 1. Login as SUPER using the NMS method described above. 2. Enter the command passwd. At the next prompt, enter a new pass-

word with a maximum of eight characters. (See passwd on Page 73.) NOTE: Passwords cannot be changed using the front panel naviga-

tion buttons. 26 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C 3. Re-enter your new password (for verication purposes). If the entry is correct, the radio responds with user: Command Complete. 4. Set up user accounts as required beyond the factory default of SUPER. Create accounts, set permission levels, or delete accounts as desired using the user command. See Page 86 for complete description of user command. NOTE: It is recommended that users log out when finished using the front panel navigation keys or console terminal. This can be done using the Logout screen on the radio, or the logout command from a console terminal as appropriate. If there is no key or terminal activity for 10 minutes, the radio automatically logs out and reverts to read-only status. 4.6 STEP 5Review Essential Operating Parameters Review and set the following parameters to allow data throughput and interconnection with the network. These are radio operating frequen-

cies, data interface clocking, and data framing. Table 1 outlines these based on each model group and configuration. Table 11. Essential Parameters for Standalone & Protected Model Group Data Interface Parameter Setting Subrate EIA-530 FT1/FE1 RF TX/RX Frequency Clocking Factory configured for customer frequencies. Use clkmode command

(Page 54) to match interface equipment. Framing Does not apply. RF TX/RX Frequency Clocking Framing Time Slot Line Code Factory configured for customer frequencies. Use clkmode command

(Page 54) to match interface equipment. Set as appropriate using fstruct command (Page 59). Set as appropriate using timeslot command (Page 84). Set as appropriate using linecode command (Page 66). MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 27 Table 11. Essential Parameters for Standalone & Protected (Continued) Model Group Data Interface Parameter Setting Fullrate E1 RF TX/RX Frequency Clocking Framing Factory configured for customer frequencies. No settings are necessary. Radio automatically detects clock and sets mode. Radio set to unframed (default). Make changes as appropriate using fstruct command

(Page 59) to match interface equipment. Line Code Set as appropriate using linecode command (Page 66). 4.7 STEP 6Set TCP/IP Settings to Enable SNMP and/or Telnet Management (If required) The unit IP address is factory configured with a unique address based on the last three digits of the radios serial number. Use ip command (Page 63) to change the IP address, set net-

mask, gateway and IP Port as necessary. In a protected radio, change the rdnt settings (Page 74) to match the user-assigned IP addresses. 4.8 STEP 7Set User Configurable Fields Many items are user congurable, to ease customer use. These include, and are not limited to the following. See the NMS com-

mand description in the manual for more detail:

Set user information fields using info command (Page 62) Set alarms and alarm mappings using the alarm command

(Page 49) Set event mappings using the evmap command (Page 57) Set alarm thresholds using the threshold command (Page 83) Set the SNMP community using the snmpcomm command

(Page 81) 4.9 STEP 8Verify Radio Performance The data performance and NMS should be veried. Use the loop-

back command (Page 69) to verify data throughput. 4.10 STEP 9Install the Link Peak the antennas for maximum RSSI using the continuously Change only if required. 28 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C updated rssi command (Page 80), either the front panel screen or using the trend command (Page 86) via the NMS. 4.11 STEP 10Verify the Link Performance Connect and verify the proper operation of external equipment con-

nected to the LEDR radio link. 5.0 CONFIGURATION AND CONTROL VIA THE FRONT PANEL Figure 9 on the following pages are a pictorial view of the front panel menu tree. Detailed explanations of the screens are provided in Section 5.1, Front Panel LCD Menu Descriptions. MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 29 Step 1 Details Page 32 LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk DDDDeeeeffffaaaauuuulllltttt SSSSccccrrrreeeeeeeennnn Details Page 38 LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk Details Page 38 LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk LLLLooooggggoooouuuutttt Details Page 39 LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk NNNNeeeettttwwwwoooorrrrkkkk Details Page 34 LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk GGGGeeeennnneeeerrrraaaallll Details Page 42 LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk RRRRFFFF CCCCoooonnnnffffiiiigggg Details Page 35 LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk IIIIOOOO CCCCoooonnnnffffiiiigggg Details Page 36 LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk LLLLiiiinnnneeee CCCCoooonnnnffffiiiigggg Details Page 40 LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk PPPPeeeerrrrffffoooorrrrmmmmaaaannnncccceeee Details Page 33 LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk GGGG....888822221111 Details Page 38 LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk MMMMooooddddeeeemmmm Details Page 32 LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk CCCCoooonnnnssssoooolllleeee Details Page 32 LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk DDDDiiiiaaaaggggnnnnoooossssttttiiiiccccssss Details Page 40 LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk OOOOrrrrddddeeeerrrrwwwwiiiirrrreeee Details Page 33 LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk Details Page 41 LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk RRRReeeedddduuuunnnnddddaaaannnntttt Details Page 41 LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk RRRReeeemmmmooootttteeee SSSSttttaaaattttuuuussss EEEENNNNTTTTEEEERRRR Step 2 UUUUsssseeeerrrrnnnnaaaammmmeeee AAAAddddmmmmiiiinnnn Menu Selection LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk LLLLooooggggggggeeeedddd oooouuuutttt Display Only IIIIPPPP AAAAddddddddrrrreeeessssssss 000000000000....000000000000....000000000000....000000000000 Step 3 PPPPaaaasssssssswwwwoooorrrrdddd

Text Enter

(Note: Logout screens available only when logged in.) NNNNeeeettttmmmmaaaasssskkkk 000000000000....000000000000....000000000000....000000000000 GGGGaaaatttteeeewwwwaaaayyyy 000000000000....000000000000....000000000000....000000000000 DDDDeeeeffffaaaauuuulllltttt IIIIPPPP PPPPoooorrrrtttt 000000000000....000000000000....000000000000....000000000000 Number Enter Number Enter Number Enter UUUUnnnniiiitttt IIIIDDDD 000000000000 Number Enter TTTTxxxx FFFFrrrreeeeqqqquuuueeeennnnccccyyyy xxxxxxxxxxxxxxxx....xxxxxxxxxxxxxxxx MMMMHHHHzzzz Number Enter CCCClllloooocccckkkk MMMMooooddddeeee IIIINNNNTTTTEEEERRRRNNNNAAAALLLL Menu Selection MMMMooooddddeeeellll NNNNuuuummmmbbbbeeeerrrr LLLLEEEEDDDDRRRR 444400000000FFFF Display Only RRRRxxxx FFFFrrrreeeeqqqquuuueeeennnnccccyyyy xxxxxxxxxxxxxxxx....xxxxxxxxxxxxxxxx MMMMHHHHzzzz Number Enter IIIInnnntttteeeerrrrffffaaaacccceeee EEEE1111 Menu Selection SSSSeeeerrrriiiiaaaallll NNNNuuuummmmbbbbeeeerrrr xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Display Only TTTTxxxxKKKKeeeeyyyy EEEEnnnnaaaabbbblllleeee UUUUNNNN----KKKKEEEEYYYYEEEEDDDD Menu Selection CCCCAAAASSSS EEEEnnnnaaaabbbblllleeee DDDDIIIISSSSAAAABBBBLLLLEEEEDDDD Menu Selection Number Enter FFFFiiiirrrrmmmmwwwwaaaarrrreeee RRRReeeevvvv.... xxxx....xxxx....xxxx Display Only BBBBaaaannnnddddwwwwiiiiddddtttthhhh 222200000000 kkkkHHHHzzzz Menu Selection LLLLiiiinnnneeee mmmmaaaapppp 1111aaaa 2222bbbb 3333cccc 4444dddd Menu Selection CCCChhhhoooooooosssseeee LLLLiiiinnnneeee 1111 LLLLIIIINNNNEEEE1111 FFFFrrrraaaammmmeeee SSSSttttrrrruuuucccctttt 1111 FFFFAAAASSSS OOOONNNNLLLLYYYY AAAAIIIISSSS GGGGeeeennnneeeerrrraaaatttteeee 1111 OOOOFFFFFFFF AAAAIIIISSSS FFFFoooorrrrwwwwaaaarrrrddddiiiinnnngggg 1111 OOOOFFFFFFFF Menu Selection Menu Selection Menu Selection Menu Selection RRRRSSSSSSSSIIII

----66660000 ddddBBBBmmmm Display Only GGGG....888822221111 SSSSttttaaaattttuuuussss EEEERRRRRRRROOOORRRR FFFFRRRREEEEEEEE Display Only RRRRxxxx LLLLoooocccckkkk LLLLOOOOCCCCKKKKEEEEDDDD Display Only BBBBaaaauuuudddd RRRRaaaatttteeee 9999666600000000 Menu Selection LLLLooooooooppppbbbbaaaacccckkkk NNNNOOOORRRRMMMMAAAALLLL ((((NNNNOOOONNNNEEEE)))) Menu Selection SSSSeeeennnndddd OOOODDDDWWWW AAAAlllleeeerrrrtttt 444400000000 Menu Selection BBBBaaaacccckkkklllliiiigggghhhhtttt EEEENNNNAAAABBBBLLLLEEEEDDDD Menu Selections SSSSiiiibbbblllliiiinnnngggg IIIIPPPP 000000000000....000000000000....000000000000....000000000000 Number Enter RRRReeeemmmmooootttteeee UUUUnnnniiiittttIIIIDDDD

<<<<nnnnoooonnnneeee>>>>

Number Enter SSSSNNNNRRRR

++++22227777 ddddBBBB Display Only AAAAvvvvaaaaiiiillllaaaabbbblllleeee 0000 Display Only FFFFrrrreeeeqqqq.... OOOOffffffffsssseeeetttt

----111177770000 HHHHzzzz Display Only PPPPaaaarrrriiiittttyyyy NNNNoooonnnneeee Menu Selection BBBBuuuuiiiilllltttt iiiinnnn TTTTeeeesssstttt SSSSttttaaaarrrrtttt????

Menu Selection VVVVoooolllluuuummmmeeee

Level Setting VVVViiiieeeewwwwiiiinnnngggg AAAAnnnngggglllleeee

Angle Setting PPPPrrrrooootttteeeecccctttteeeedddd MMMMooooddddeeee RRRReeeedddduuuunnnnddddaaaannnntttt PPPPoooowwwweeeerrrr OOOOuuuutttt

++++33330000 ddddBBBBmmmm Set/Display UUUUnnnnaaaavvvvaaaaiiiillllaaaabbbblllleeee 0000 sssseeeecccc Display Only CCCCoooorrrrrrrreeeecccctttteeeedddd 0000 bbbbyyyytttteeeessss Display Only PPPPAAAA TTTTeeeemmmmppppeeeerrrraaaattttuuuurrrreeee

++++33337777 CCCC Display Only EEEErrrrrrrroooorrrreeeedddd 0000 sssseeeecccc Display Only UUUUnnnnccccoooorrrrrrrreeeeccccttttaaaabbbblllleeee 0000 bbbblllloooocccckkkkssss Display Only VVVVooooxxxx TTTThhhhrrrreeeesssshhhhoooolllldddd

Level Setting KKKKeeeeyyyyppppaaaadddd BBBBeeeeeeeepppp EEEENNNNAAAABBBBLLLLEEEEDDDD KKKKeeeeyyyy RRRReeeeppppeeeeaaaatttt RRRRaaaatttteeee 111155550000 mmmmssss Menu Selections AAAAccccttttiiiivvvveeee RRRReeeedddduuuunnnnddddaaaannnntttt Menu Selections Display Only Display Only Number Enter NOTES:

Redundant screens visible only on protected/redundant stations. See Redundant screen description for additional displays. Details Page 41 30 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C HHHHaaaarrrrddddwwwwaaaarrrreeee RRRReeeevvvv.... xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Display Only MMMMoooodddd////DDDDaaaattttaaaa rrrraaaatttteeee 33332222----QQQQAAAAMMMM 777766668888 kkkkbbbbppppssss Menu Selection LLLLiiiinnnneeee CCCCooooddddeeee 1111 AAAAMMMMIIII RRRReeeeffffrrrraaaammmmeeee 1111 3333 ccccoooonnnnssss.... FFFFAAAASSSS PPPPuuuullllsssseeee SSSShhhhaaaappppeeee 1111 gggg....777777775555 CCCCaaaabbbblllleeee LLLLeeeennnnggggtttthhhh 1111 1111----111133333333 fffftttt Menu Selection Menu Selection Menu Selection Menu Selection SSSSeeeevvvveeeerrrreeeellllyyyy EEEErrrrrrrreeeedddd 0000 sssseeeecccc Display Only BBBBiiiitttt EEEErrrrrrrroooorrrr RRRRaaaatttteeee

<<<< 1111 xxxx 11110000----6666 Display Only Details Page 33 DDDDeeeeffffaaaauuuulllltttt SSSSccccrrrreeeeeeeennnn RRRRSSSSSSSSIIII RRRREEEESSSSEEEETTTT GGGG....888822221111????

NNNNOOOO Menu Selection Display OnlyThis description indicates the LCD menu item is for informational purposes only. Menu SelectionThis description indicates there are selections available and the choices may be scrolled through using the keys. Press the key again to save menu selection choice. ENTER Text or Number Enter This description indicates the entry is alphanumeric. The over the text to be changed. Then, the the edit mode. Use the characters. Press the acter in displayed location. keys are first used to position the cursor key is pressed to enter keys to scroll through all available key again to save the displayed char-

ENTER ENTER Figure 15. Front Panel LCD Menu Navigation MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 31 5.1 Front Panel LCD Menu Descriptions NOTE: The menus in this section are listed in alphabetical order. CONSOLE BBBBaaaauuuudddd RRRRaaaatttteeee 9999666600000000 This menu allows you to set or view the current data rate setting for the CONSOLE Port serial interface. Refer to Figure 33 on Page 129 for pinout information of this Port. See OPTION 1: Uploading Firmware via the CONSOLE Port on Page 94 for more information. For the NMS command-line equivalent, see con on Page 56. PPPPaaaarrrriiiittttyyyy NNNNoooonnnneeee This menu allows you to set or view the current parity setting for the CONSOLE Port serial interface. Refer to Figure 33 on Page 129 for pinout information for this Port. Typically, this will be set to NONE. For the NMS command-line equivalent, see con on Page 56. Default Screen LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk DDDDeeeeffffaaaauuuulllltttt SSSSccccrrrreeeeeeeennnn This menu allows you to view the default screen that appears on the LCD display. If desired, the default screen may be changed (See Default Screen on Page 33). Diagnostics LLLLooooooooppppbbbbaaaacccckkkk NNNNOOOORRRRMMMMAAAALLLL ((((NNNNOOOONNNNEEEE)))) This menu is used to start the loopback mode for testing purposes. Remote loopback port selection is relative to the local port. The radio link will translate any line mapping to select the correct physical remote port to loop back, based on the selected local port. When conducting RF loopback testing, see Page 69 (loopback NMS command) for additional information. For the NMS command-line equivalent, see loopback on Page 69. BBBBuuuuiiiilllltttt iiiinnnn TTTTeeeesssstttt SSSSttttaaaarrrrtttt????

This menu is used to start the loopback mode to check radio functions. When conducting RF loopback testing, see Page 69 (loopback) for important information. For the NMS command-line equivalent, see test on Page 83. 32 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C Front Panel BBBBaaaacccckkkklllliiiigggghhhhtttt EEEENNNNAAAABBBBLLLLEEEEDDDD This screen provides control of the front panel LCD illumination. The LCD illumination may need to be enabled to view the LCD depending on ambient lighting conditions. VVVViiiieeeewwwwiiiinnnngggg AAAAnnnngggglllleeee

This screen allows you to adjust the viewing angle (top to bottom) of the LCD screen. The angle may need to be adjusted to compensate for the mounting position and ambient lighting conditions of the radio. Use the saves the adjusted value keys to adjust the screen. Pressing ENTER as the default setting. KKKKeeeeyyyyppppaaaadddd BBBBeeeeeeeepppp EEEENNNNAAAABBBBLLLLEEEEDDDD This screen allows the radio beeper to be disabled or enabled. The beeper provides a short chirp whenever a front panel key is pressed. KKKKeeeeyyyy RRRReeeeppppeeeeaaaatttt WWWWaaaaiiiitttt 111155550000 mmmmssss This screen allows you to set the time delay that occurs before a key will start repeating its function when held down. DDDDeeeeffffaaaauuuulllltttt SSSSccccrrrreeeeeeeennnn RRRRSSSSSSSSIIII This screen allows you to set the default screen that appears when the radio is first turned on, or is left idle for more than 10 minutes. The RSSI screen is commonly chosen, but any screen may be selected as a default. G.821 LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk GGGG....888822221111 This menu contains radio link performance information. The G.821 standard defines descriptive words associated with bit-error rate perfor-

mance. Refer to the ITU-T G.821 recommendations for definitions and standards. GGGG....888822221111 SSSSttttaaaattttuuuussss EEEErrrrrrrroooorrrr FFFFrrrreeeeeeee This display shows summary information regarding the bit-error-rate

(BER) status of the radio. AAAAvvvvaaaaiiiillllaaaabbbblllleeee 0000 sssseeeecccc This screen shows the available seconds of the radio link. The G.821 standard defines Available Seconds as the period of time following a period of 10 consecutive seconds, each of which has a BER of less than 1x10-3. UUUUnnnnaaaavvvvaaaaiiiillllaaaabbbblllleeee 0000 sssseeeecccc This screen shows the unavailable seconds of the radio link. The G.821 standard defines Unavailable Seconds as the period of time following a period of 10 consecutive seconds, each of which has a BER of higher than 1x10-3. EEEErrrrrrrroooorrrreeeedddd 0000 This screen shows the errored seconds of the radio link. The G.821 stan-

dard defines Errored Seconds as a one second period in which one or more bits are in error. MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 33 SSSSeeeevvvveeeerrrreeeellllyyyy EEEErrrrrrrreeeedddd 0000 This screen shows the severely errored seconds of the radio link. The G.821 standard defines Severely Errored Seconds as a one second period that has a BER higher than 1x10-3. RRRReeeesssseeeetttt GGGG....888822221111????

NNNNOOOO This screen allows the user to reset the G.821 performance monitoring screens. General UUUUnnnniiiitttt IIIIDDDD 000000000000 This menu allows the Unit ID of the radio to be displayed or changed. The Unit ID allows an individual radio to be signaled for Orderwire use. For the NMS command-line equivalent, see unitid on Page 86. MMMMooooddddeeeellll NNNNuuuummmmbbbbeeeerrrr LLLLEEEEDDDDRRRR 1111444400000000SSSS This menu displays the radio model number. The user cannot change the radio type. For the NMS command-line equivalent, see model on Page 71. SSSSeeeerrrriiiiaaaallll NNNNuuuummmmbbbbeeeerrrr xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx This menu displays the radio serial number and matches the serial number on the chassis sticker. The user cannot change the radios serial number. For the NMS command-line equivalent, see sernum on Page 81. FFFFiiiirrrrmmmmwwwwaaaarrrreeee RRRReeeevvvv.... xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx This menu displays the firmware revision level of the internal radio soft-

ware. For the NMS command-line equivalent, see ver on Page 87. HHHHaaaarrrrddddwwwwaaaarrrreeee RRRReeeevvvv.... xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx This menu displays the hardware revision level of the main PC board in the radio. For the NMS command-line equivalent, see ver on Page 87. 34 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C IO Configuration CCCClllloooocccckkkk MMMMooooddddeeee IIIINNNNTTTTEEEERRRRNNNNAAAALLLL This screen is used to set or display the data clocking method. For syn-

chronization purposes, several different clocking schemes can be used. See Transmit Clock Selection (Subrate Radios Only) on Page 23. For the NMS command-line equivalent, see date on Page 56. NOTE: For subrate models: LEDR 400S/900S/1400S Earlier versions of the software may display the Clock Mode as NORMAL instead of INTERNAL. IIIInnnntttteeeerrrrffffaaaacccceeee EEEE1111 This screen is used to set or display the payload data interface. The available selections are E1 and T1, depending on hardware configura-

tion of the LEDR radio. For the NMS command-line equivalent, see interface on Page 62. CCCCAAAASSSS EEEEnnnnaaaabbbblllleeee DDDDIIIISSSSAAAABBBBLLLLEEEEDDDD This screen is used to set or display the Channel Associated Signaling

(CAS) status. The available selections are Enabled and Disabled. This screen will only be functional in radios factory-equipped to support CAS. Consult the factory if you require this service. For the NMS command-line equivalent, see modem on Page 72. LLLLiiiinnnneeee mmmmaaaapppp 1111aaaa 2222bbbb 3333cccc 4444dddd This screen is used to set or display the current span mapping configu-

ration. The entry consists of from 1 to 4 alpha-numeric characters spec-

ifying line interface to span mapping. Valid numbers are 14. Valid span characters are ad. Example: Entering 1a 2b 3c 4d asserts the following:

maps line 1 to span a maps line 2 to span b maps line 3 to span c maps line 4 to span d For the NMS command-line equivalent, see linemap on Page 66. MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 35 Line Configuration CCCChhhhoooooooosssseeee LLLLiiiinnnneeee 1111 LLLLIIIINNNNEEEE1111 This screen is used to choose or display the line (1-4) that is selected. This selection will be active for all of the screens that follow in the Line Configuration menu and will be displayed in the upper right hand corner of each screen. For the NMS command-line equivalent, see linename on Page 67. FFFFrrrraaaammmmeeee SSSSttttrrrruuuucccctttt 1111 FFFFAAAASSSS OOOONNNNLLLLYYYY This screen is used to set or display the span(s) frame structure. The allowable selections are shown in Table 11. Table 11. Frame StructureAllowable Selections T1 Operation E1 Operation 0FT only (Default) 0FAS Only (Default) 1ESF 2ESF + PRM 3SF 4SF + JYEL 5ESF + CRC 1FAS + BSLIP 2FAS + CRC 3FAS + CRC + BSLIP 4FAS + CAS 5FAS + CAS + BSLIP 6ESF + CRC + PRM 6FAS + CRC + CAS 7FAS +CRC + CAS +BSLIP For the NMS command-line equivalent, see fstruct on Page 59. AAAAIIIISSSS GGGGeeeennnneeeerrrraaaatttteeee 1111 OOOOFFFFFFFF This screen is used to set or display the Alarm Indication Signal (AIS) status. It may be set to ON or OFF. When generation is enabled, fault conditions within the link or at the line interface will cause the appro-

priate AIS signaling to occur. For the NMS command-line equivalent, see ais on Page 48. AAAAIIIISSSS FFFFoooorrrrwwwwaaaarrrrddddiiiinnnngggg 1111 OOOOFFFFFFFF This screen is used to set or display the Alarm Indication Signal (AIS) forwarding status. It may be set to ON or OFF. When forwarding is enabled, AIS/RAI signaling at the line interfaces will be detected and passed to the other end of the radio link. For the NMS command-line equivalent, see ais on Page 48. 36 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C LLLLiiiinnnneeee CCCCooooddddeeee 1111 AAAAMMMMIIII This screen is used to set or display the linecode used by the radio. The available selections are AMI or HDB3. For the NMS command-line equivalent, see linecode on Page 66. RRRReeeeffffrrrraaaammmmeeee 1111 3333 ccccoooonnnnssss.... FFFFAAAASSSS This screen is used to set or display the reframe criteria of the LEDR radio. The setting is based on the number of errors encountered. The available selections for T1 and E1 operation are listed in Table 12 below. Table 12. Reframe Criteria Selections T1 Operation E1 Operation 2 out of 4 Fbit errors (Default) 3 consecutive FAS errors (Default) 2 out of 5 Fbit errors 2 out of 6 Fbit errors 915 CRC errors For the NMS command-line equivalent, see reframe on Page 76. PPPPuuuullllsssseeee SSSShhhhaaaappppeeee 1111 gggg....777777775555 This command is used to select or display the pulse shape used with the data interface cable. Table 13 below shows the available selections for T1 and E1 operation. Table 13. ITU Cable Specifications Specification g.775 (Default) i.431 For the NMS command-line equivalent, see line on Page 65. CCCCaaaabbbblllleeee LLLLeeeennnnggggtttthhhh 1111 1111----111133333333 fffftttt This command is used to set or display the cable length being used for the data interface. The available selections are:

1 to 133 feet (Default) 133 to 266 feet 266 to 399 feet 399 to 533 feet 533 to 655 feet For the NMS command-line equivalent, see line on Page 65. MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 37 Login LLLLEEEEDDDDRRRR LLLLIIIINNNNKKKK LLLLooooggggiiiinnnn The login menus allows you to log in to the radios operating system and gain access to configuration and diagnostics functions permitted for your assigned access level. UUUUsssseeeerrrrnnnnaaaammmmeeee AAAAddddmmmmiiiinnnn The username menu is where you specify the user name assigned by the user access administrator. For the NMS command-line equivalent, see login on Page 68. PPPPaaaasssssssswwwwoooorrrrdddd

The password screen is where you specify the password associated with your user name to gain access to the login account. A maximum of eight characters is allowed. For the NMS command-line equivalent, see passwd on Page 73. Logout LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk LLLLooooggggoooouuuutttt The logout menu allows you to terminate your session with the LEDR radio. When this screen is displayed, press to finish your session. ENTER Modem RRRRxxxx LLLLoooocccckkkk LLLLOOOOCCCCKKKKEEEEDDDD This menu indicates whether the receiver demodulator has detected a signal, acquired the carrier, and data rate, as well as achieved a Forward Error Correction (FEC) lock. FFFFrrrreeeeqqqq.... OOOOffffffffsssseeeetttt

----111177770000 HHHHzzzz This screen shows the frequency offset of the LEDR radio as measured in Hertz. CCCCoooorrrrrrrreeeecccctttteeeedddd 0000 bbbbyyyytttteeeessss This menu shows how many bytes have been corrected by the radios FEC capability. UUUUnnnnccccoooorrrrrrrreeeeccccttttaaaabbbblllleeee 0000 bbbblllloooocccckkkkssss This menu shows how many frames (blocks) could not be corrected by the radios FEC capability. BBBBiiiitttt EEEErrrrrrrroooorrrr RRRRaaaatttteeee

<<<< 1111 xxxx 11110000----6666 This menu shows the current bit error rate (BER) of the LEDR radio. 38 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C Network IIIIPPPP AAAAddddddddrrrreeeessssssss 000000000000....000000000000....000000000000....000000000000 This menu allows changes to the radios IP address. The IP address is used for network connectivity. The IP address also allows new radio software to be downloaded over-the-air. For the NMS command-line equivalent, see ip on Page 63. NNNNeeeettttmmmmaaaasssskkkk 000000000000....000000000000....000000000000....000000000000 This menu allows the subnet mask to be viewed and changed. The subnet mask specifies which bits of the host IP address can be re-used for increased network addressing efficiency. Example: Consider an IP address in a Class C network, such as 150.215.017.009. The Class C network means that the right-most group of numbers (009) identifies a particular host on this network. The other three groups of numbers (150.215.017) represent the network address. Subnetting allows the further division of the host part of the address

(right-most group of numbers) into two or more subnets. A subnet mask of 255.255.255.127 allows half of the host portion of the IP address to be reused to define sub-networks. For the NMS command-line equivalent, see ip on Page 63. GGGGaaaatttteeeewwwwaaaayyyy 000000000000....000000000000....000000000000....000000000000 This menu allows the Gateway IP address to be viewed or set. The Gateway IP address is the address of the radio that connects the radio network to an IP network. For the NMS command-line equivalent, see ip on Page 63. DDDDeeeeffffaaaauuuulllltttt IIIIPPPP PPPPoooorrrrtttt EEEEtttthhhheeeerrrrnnnneeeetttt This menu allows selection of the Default IP port for networking con-

nections to the LEDR radio. The Ethernet selection is used for cable con-

nection to a Local Area Network (LAN) or repeater via the radios rear panel ETHERNET connector. The AIR selection is commonly used for over-the air (RF) networking between radios, but may also be used with a back-to-back cable connec-

tion between two radios via the radios rear panel ETHERNET NMS con-

nector. This type of communication uses the SNAP protocol and requires the use of an ethernet crossover cable. For the NMS command-line equivalent, see ip on Page 63. MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 39 Orderwire SSSSeeeennnndddd OOOODDDDWWWW AAAAlllleeeerrrrtttt This menu allows you to ring the Orderwire at a specified radio site. Refer to USING ORDERWIRE on Page 99 for instructions on using the Orderwire. For the NMS command-line equivalent, see alert on Page 51. VVVVoooolllluuuummmmeeee

This screen is used to set or display the Orderwire volume. Use the keys to adjust the screen. Pressing as the default setting. ENTER saves the adjusted value For the NMS command-line equivalent, see volume on Page 88. VVVVooooxxxx TTTThhhhrrrreeeesssshhhhoooolllldddd

This screen is used to set or display the Orderwire vox threshold (acti-

vation level). Use the saves the adjusted value as the default setting. keys to adjust the screen. Pressing ENTER For the NMS command-line equivalent, see vox on Page 88. Performance The Performance menu items provide diagnostics information regarding the radio. The following diagnostic parameters are available on a con-

tinuous, updating basis:

RSSIReceived Signal Strength Indicator SNRSignal/Noise Ratio (not valid if there is an RX Alarm) POUTPower Output PA TemperaturePower amplifier temperature RRRRSSSSSSSSIIII

----66660000 ddddBBBBmmmm The RSSI display indicates the strength of the radio signal being received at the radio receiver. The measurement is in dBm. Therefore, an RSSI of 80 dBm is stronger than a 100 dBm signal. For the NMS command-line equivalent, see rssi on Page 80. 40 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C SSSSNNNNRRRR

++++22227777 ddddBBBB The SNR display indicates the relationship of the amount of intelligence versus noise on the radio signal. The higher the SNR, the better the quality of the radio signal. For the NMS command-line equivalent, see snr on Page 82. PPPPoooowwwweeeerrrr OOOOuuuutttt

++++33330000 ddddBBBBmmmm The Power Output display indicates the transmitter power output in dBm. (+30 dBm is equal to 1.0 watt; +20 dBm is 100 mW.) The power output level can be set from this display by pressing the key, and through use of the arrow keys, increase or decrease the power level. When the desired value is displayed, press the key to save the setting. ENTER ENTER For the NMS command-line equivalent, see rfout on Page 77. PPPPAAAA TTTTeeeemmmmppppeeeerrrraaaattttuuuurrrreeee

++++33337777 CCCC The PA Temperature display indicates the internal temperature

(degrees Celsius) at the hottest point on the radios printed circuit board

(near the power amplifier section of the radio). For the NMS command-line equivalent, see temp on Page 83. NOTE: It is normal for the PA temperature to be 30 to 40 C above the ambient room temperature. Redundant MMMMyyyy SSSSttttaaaattttuuuussss OOOOKKKK This screen is used to display the status of the radio currently being used. OK is displayed when no problems are detected. SSSSiiiibbbblllliiiinnnngggg SSSSttttaaaattttuuuussss OOOOKKKK This screen is used to display the status of the other radio in a pro-

tected configuration (the one not currently being used). OK is dis-

played when no problems are detected. AAAAccccttttiiiivvvveeee NNNNOOOO This screen is used to set or display whether the currently selected radio is the active unit. MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 41 MMMMooooddddeeee 1111 ++++ 1111 HHHHOOOOTTTT This screen is used to set or display the radios redundancy mode. The available selections are: 1+1 HOT (redundant hot standby), 1+1 WARM

(redundant warm standby) or STANDALONE (non-redundant) configura-

tion. SSSSiiiibbbblllliiiinnnngggg IIIIPPPP 000000000000....000000000000....000000000000....000000000000 This screen is used to set or display the sibling radios Internet Protocol

(IP) address. (See note below.) NOTE: The associated radio IP address should be programmed to the IP address of the other radio connected to the protected switching chassis. The associated radio IP address is used by the redundant radio to share information between the units. This address is necessary for proper operation. The associated radio IP address does not affect IP routing and forwarding, SNMP, or Telnet. HHHHiiiittttlllleeeessssssss OOOONNNN This screen sets or displays whether the radio is set to perform error-free hitless switchover in the event of an alarm condition. DDDDeeeeffffaaaauuuulllltttt RRRRaaaaddddiiiioooo YYYYeeeessss This screen displays whether or not the radio is the default radio in a pro-

tected configuration. The default radio is determined by which one is connected to the top connector of the Protected Switch Chassis rear panel. (See Figure 12 on Page 17.) SSSSwwwwiiiittttcccchhhh XXXXccccvvvvrrrr SSSSwwwwiiiittttcccchhhh????

This screen is used to force a switchover to the non-active radio trans-

ceiver. (The newly selected unit becomes the active transceiver). Remote Status RRRReeeemmmmooootttteeee UUUUnnnniiiittttIIIIDDDD

<<<<nnnnoooonnnneeee>>>>

This screen is used to set or display the unit identification for the remote radio. RF Configuration TTTTxxxx FFFFrrrreeeeqqqquuuueeeennnnccccyyyy This menu is used to set or view the transmit (TX) frequency of the radio. For the NMS command-line equivalent, see freq on Page 58. 42 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C RRRRxxxx FFFFrrrreeeeqqqquuuueeeennnnccccyyyy This menu is used to set or view the receive (RX) frequency of the radio. For the NMS command-line equivalent, see freq on Page 58. TTTTxxxx KKKKeeeeyyyy EEEEnnnnaaaabbbblllleeee This menu is used to enable (key) or disable (dekey) the transmitter or to verify that the radio is keyed and the transmitter is active. The radio is normally keyed and transmitting whenever power is applied. For the NMS command-line equivalent, see txkey on Page 86. BBBBaaaannnnddddwwwwiiiiddddtttthhhh This menu displays the bandwidth setting of the radio. The bandwidth is set at the factory and cannot be changed by the user. Refer to Table 9 on Page 22 for allowable combinations of bandwidth, data rates, and mod-

ulation types. MMMMoooodddd////DDDDaaaattttaaaa rrrraaaatttteeee 33332222----QQQQAAAAMMMM 777766668888 kkkkbbbbppppssss This menu displays the modulation type and the aggregate link data rate. The available modulation types are QPSK, 16 QAM, and 32 QAM. The data rate can be changed, but is dependent on the modulation type. See Bandwidths, Data Rates and Modulation Types on Page 22. For the NMS command-line equivalent, see modem on Page 72. 6.0 CONFIGURATION AND CONTROL VIA THE CONSOLE PORT 6.1 Introduction The CONSOLE Port on the front panel provides full access to configura-

tion and diagnostics information. It is the most common way to access the LEDR radio for its initial configuration. The CONSOLE Port is an EIA-232 connection that provides ASCII text communications to a con-

nected terminal. Most of the commands listed on the following pages are available through other communication channels. These include Ethernet, IP, Telnet and the rear panel Service Channel. Refer to I/O Connector Pinout Information on Page 129 for connector wiring details. MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 43 NOTE: It is important to use a terminal or terminal-emulator that supports 80 characters-per-line and 25 lines-per-screen. The display will be distorted if terminals with different line charac-

teristics are used. 6.2 Initial Connection to the CONSOLE Port 1. Connect a terminal to the front panel DB-9 connector labeled

. 2. Open an ANSI terminal application on the terminal. (If using the Windows operating system, a HyperTerminal session can be started by selecting Programs>>Accessories>>HyperTerminal.) 3. Press ENTER a few times. When communications are established with the radio, an LEDR> text prompt appears on the terminal screen. 4. Type login <your username> (or rlogin <your username> for remote access) and press word (Eight characters maximum; case sensitive). At the password> prompt, type your pass-

ENTER 5. You now have access to the command line interface. It can be used to configure and query the radio parameters and setup information. The available commands can be listed on the display by typing help at the LEDR> prompt, then ENTER

. 6.3 NMS Commands Once you are successfully logged in, the Network Management System

(NMS) commands shown in Table 14 are available at the command line prompt (LEDR>) NOTE: Some commands are model and/or feature spe-

cific. (See Table 15 on Page 48 for Interface icons.) Command

ais alarm alert arp ber Table 14. NMS Commands Description Summary Displays the available NMS commands. May also be entered after any other command to obtain context sensitive help. (Note: the word help may be entered in place of ?). Echoes/enables/disables Alarm Indication Signal

(AIS) generation and Remote Alarm Indication

(RAI) detection, AIS and RAI Signal (RAIS) forwarding on given span(s). Provides control of alarm outputs and displays state of alarm inputs. Sends an alert sound to the specified radio Set/display ARP Setting of Ethernet Port Bit-Error Rate report for the RF link. Details Page 48 Page 48 Page 49 Page 51 Page 51 Page 51 44 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C Table 14. NMS Commands (Continued) Description Summary Bit-Error Rate test of data interface Displays the active image (firmware) or reboots the radio with a specified firmware image Briefly sounds the radios piezo buzzer to test its operation Set/display data clocking mode Displays modem carrier frequency offset in Hz Set/display CONSOLE Port communications parameters Used to get or send a radio configuration file Set/display current date Set/display DTR enable Displays Ethernet address Event log commands Set/display alarm port and alarm LED settings Details Page 52 Page 54 Page 54 Page 54 Page 55 Page 56 Page 56 Page 56 Page 57 Page 57 Page 57 Page 57 Display corrected and Uncorrectable FEC errors Page 58 Set/display operating frequencies Display absolute frequency limits Set/display current span(s) frame structure Show/Reset G.821 information Set/display network group Displays the available NMS commands. May also be entered after any other command to obtain context sensitive help. (Note: A question mark (?) may be entered in place of help). Check or boot the internal HTTP/IP server Firmware image copy Set/display timeslot idle pattern Set/display radio/owner information Set/display the payload data interface Set/display interleave depth Set/display the radios IP configuration Firmware image verify Tests radios front panel LCD display Tests radios front panel LEDs Set/display pulse shape settings Set/display the linecode used by span(s) Show/enable/clear line errors Set/display current linemapping configuration Set/display names for line interfaces Page 58 Page 59 Page 59 Page 60 Page 60 Page 48 Page 61 Page 61 Page 61 Page 62 Page 62 Page 63 Page 63 Page 64 Page 64 Page 64 Page 65 Page 66 Page 67 Page 66 Page 67 Command bert boot buzzer clkmode coffset con cong date dtren ethernet events evmap fec freq fset fstruct g821 group help http icopy idlepat info interface interleave ip iverify lcd led line linecode linerr linemap linename MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 45 Table 14. NMS Commands (Continued) Description Summary View, sort, clear, send event log information Console user level access Console user exit Set/display loopback modes Display radio model number Set/display radio modulation type and data rate Display radios in the network Sets new user password (8 characters max.) Test link to IP address on network Displays Phase Lock Loop status Enables/disables modem modulator power measurement mode (on/off) Set/display redundant operating configuration Set/display the reframe criteria Reprograms radio software Details Page 68 Page 68 Page 69 Page 69 Page 71 Page 72 Page 73 Page 73 Page 73 Page 74 Page 74 Page 74 Page 76 Page 76 Set/display RF power output calibration sequence Page 76 Displays transmit power Log in to remote radio Add/delete/modify IP routing table entries Displays received signal strength Set/display RSSI calibration table Displays current modem lock status Echo/set sa bytes in E1 multi-frame Displays radio serial number Set/display SNMP community names Displays signal to noise ratio Displays performance and configuration data Set/display Service Channel configuration Displays or kills (terminates) Telnet session(s) Displays PA temperature Runs self-test of LEDR hardware Page 77 Page 77 Page 78 Page 80 Page 80 Page 81 Page 81 Page 81 Page 81 Page 82 Page 82 Page 82 Page 82 Page 83 Page 83 Set/display performance degradation threshold(s) Page 83 Set/display system time Selects which timeslots to transmit for a span(s). Default action is to enable. Set/display which events cause SNMP traps Set/display the trap manager IP address Page 84 Page 84 Page 85 Page 85 Command log login logout loopback model modem network passwd ping pll pmmode rdnt reframe reprogram rfocal rfout rlogin route rssi rssical rxlock sabytes sernum snmpcomm snr status svch telnetd temp test threshold time timeslot traplter trapmgr 46 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C Command trend txkey unitid uptime user ver volume vox who Table 14. NMS Commands (Continued) Description Summary Displays continuously updated readings of: RSSI, radio temperature, RF output, signal-to-noise ratio, and FEC errors (corrected and uncorrectable) Key or unkey radio Displays the three-digit unit identification Displays how long the radio has been operating Administration tool for adding, modifying or deleting user accounts Displays software version Set/display orderwire handset volume Set/display orderwire VOX threshold Displays the currently logged in radio users/accounts Details Page 86 Page 86 Page 86 Page 86 Page 86 Page 87 Page 88 Page 88 Page 89 NOTE: The NMS commands listed in this manual show the full set of commands from all radio versions. Different hardware config-

urations may have fewer selections. 6.4 Command Detailed Descriptions Introduction The following commands are available through the CONSOLE Port. These commands all require the Enter or Return key be pressed after the command. The following conventions are used to help describe the usage of the commands. Square brackets [ ] contain subcommands that may or may not be needed as part of the desired command. If there is more than one possible subcommand a vertical line | separates the commands within the square brackets. A subcommand is an optional exten-

sion of the command and changes the basic command. Angle brackets <> contain arguments. The arguments are values needed to carry out the command such as a frequency value or option. Some commands are limited to use in certain radio models or configu-

rations. These include subrate and fullrate. One or more of the symbols as listed in Table 15 will identify these commands. MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 47 Table 15. Symbols for Interface-Specific Commands Symbol Interface/Group 530 FT1 FE1 E1 EIA-530 Fractional-T1/G.703 Fractional-E1/G.703 E1/G.703

? or help Help Usage: help This command returns a list of currently available commands. In addi-

tion, entering help as a subcommand before or after a command returns usage information regarding the command. A? (question mark) can be also be used to invoke help. ais FT1 E1 FE1 Command Example:

rssi help ENTER Returns:

Usage: command [subcommand] <argument>

Alarm Indication Signal Usage: ais [linelist] [-g <on|off>] [-f <on|off>]

This command enables or disables alarm signal generation [-g] and for-

warding [-f] on specified E1/T1 interface lines. When generation is enabled, fault conditions within the link or at the line interface will cause the appropriate AIS/RAI signaling to occur. When forwarding is enabled, AIS/RAI signaling at the line interfaces will be detected and passed to the other end of the link. Command Example:

ais -f on -g on Returns:

AIS on RAI on NOTE: For protected configurations and full-rate radios, disable the alarm generation through the use of the ais -g off command. 48 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C Background on AIS command:

In fractional operation, the radio extracts the required timeslots and data at the input to a link, and reconstructs the full frame at the output end. The AIS <-g (generation)> command, when enabled, allows the radio to override the frame reconstruction process in order to generate a proper all-ones alarm signal. For example, modem loss of synchronization will cause all-ones to be transmitted from the active G.703 ports. When AIS <-g is disabled, the output will consist of a framed signal with all-ones in the active timeslots. In Fractional operation, AIS generation also creates a yellow alarm/RAI back to the defective source when a problem is found at the input. In FE1 mode, when AIS <-g is enabled, loss of Multi-Framing Alignment Sequence (MFAS) at the line receiver will generate a Multi-frame Yellow Alarm (MYEL) or Multi-frame Remote Alarm Indication (MRAI) at the line transmitter. AIS <-f (forwarding)> is the act of detecting a condition at the input and causing an appropriate response at the other end. For example, with for-

warding enabled, an all-ones signal applied at one end causes all-ones to be output at the other. A Remote Alarm Indication (RAI) applied will likewise appear at the opposite end. Disabling the forwarding function limits the presentation of alarm signaling to the active timeslots at the remote end. It is recommended that the ais -f on or ais --g on command be used for Fractional operation, to enable alarm generation and for-

warding. In full-rate modes, the radio will always output AIS when the unit is unlockedreceived radio signal is lost. When the modem is locked, and the input is removed from one end, you will get all-zeros at the other end unless AIS generation is enabled. Yellow alarms/RAI are not generated in the full-rate LEDR radio models; however AIS and RAI forwarding are available. It may be desirable to have alarms generated (ais -g on) in full rate models, depending on the user's requirements as outlined in the next paragraph. Since the generation and forwarding operations require use of the Ser-

vice Channel, the AIS/RAI response times are on the order of a few sec-

onds. Generation and forwarding can be very helpful in correcting problems with the network when they arise. However, in systems where the response time is critical, these modes should be disabled: In frac-

tional mode, enter ais -f off -g off. In full-rate mode, enter ais -g off. alarm Alarm I/O Usage: alarm [in|out] [1-4|all] [subcommand] [arguments]

This command is used to control the four (4) external alarm contacts and to display the state of the four (4) external alarm inputs. Outputs (Relays)Alarm outputs may be directly driven to a state, or be mapped to, internal events via the evmap command MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 49

(Page 57). When mapped to events, the active level may repro-

grammed to be either active-open or active-closed. Active means that an event is mapped to an external alarm output that is currently active. (See Alarm I/O on Page 20 for electrical parameters and typical examples of alarm usage.) InputsAlarm inputs are used to generate events in the event log and also generate SNMP traps if so programmed by the events lter command. They may be directly read via the alarm command, as well. They may also have their active level set to be either active high or low. (alarm active high; alarm active low) NamingFinally, both inputs and outputs may be named by users to allow for easy identication. For example, Fire Alarm could be used as the name for Alarm Input 1. Traps are sent with this name so that users may more easily identify the source of the alarm. Subcommands:

active [open|closed]Set alarm input/outputs active state. set [open|closed] Latch alarm outputs to one state to ignore events which are assigned to them. name [name_string]Create a user defined name for each alarm. 16 characters maximum, no spaces; not compatible with all. Command Example #1:

alarm in all Returns:

alarm: Active Current alarm: Type # Name Level Reading alarm: ====== = ================ ====== =======

alarm: Input 1 AlarmInput1 closed open alarm: Input 2 AlarmInput2 closed open alarm: Input 3 AlarmInput3 closed open alarm: Input 4 AlarmInput4 closed open Command Example #2:

alarm out 2 set closed Returns:

alarm: Active Current alarm: Type # Name Level Reading alarm: ====== = ================ ====== =======

alarm: Output 2 AlarmOutput2 closed closed Command Example #3:

alarm in 3 Returns:

50 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C alarm: Active Current alarm: Type # Name Level Reading alarm: ====== = ================ ====== =======

alarm: Input 3 AlarmInput3 closed open alert Alert another LEDR Radio Usage: alert <3 digit unit ID>|all This command is used to sound the alert buzzer on another radio. This function allows you to signal a radio and alert someone that the Order-

wire handset should be picked up. The three-digit number following the command indicates the unit ID of the radio that will be signaled. Radios available for signaling can be determined by issuing the network command. See USING ORDER-

WIRE on Page 99 for more information. arp Address Resolution Protocol (ARP) Setting of Ethernet Port Usage: arp [-a | -s [ip address] | -d [ip address]

-a View the ARP table

-s Add the IP address to the ARP table. The radio will proxy ARP for any addresses that are added

-d delete the IP address from the ARP table This command displays the contents of the radios ARP table, which is a listing of IP addresses of which the radio is aware. It can also be con-

figured to spoof, or proxy, for other (non-LEDR radio) devices that are managed using the radios out-of-band Service Channel and directly connected at some point to a radios Ethernet port, or to a common hub with a LEDR radio. In other words, the radio network can be configured to allow seamless integration of other IP-manageable devices by responding to ARP requests and/forwarding IP traffic directed to those devices. See the route command on Page 78 for information on other necessary configuration steps to allow for IP connectivity to LEDR radios and associated devices using the radios network-management channel. ber Bit-Error Rate of the RF Link Usage: ber This command displays pre-FEC and post-FEC Bit-Error Rate (BER) between the LEDR radios in the first link. NOTE: The BER measurement limit is 1E-8. For more reliable infor-

mation on the link-error rate, use the g821 demod command. MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 51 bert FT1 E1 FE1 Bit-Error Rate Test of Data Interface Usage: bert [linelist] [-e [pattern] | -d | -i [error] | -lp | -le | stats ]

bert is used for diagnostic purposes by causing the selected line of the FT1/E1 interface port lines to output a user-selectable pseudo-random bit sequence, either framed or unframed. This command also allows the user to measure the bit error rate, number of errors, etc. This command tests all T1/E1 timeslots without regard to the timeslot commands con-

figuration. linelistList of local line interfaces. Can be single line number or line-

name (see linename command), comma-separated list of line numbers or linenames, a range of line numbers (for example: 1-4), or if linelist is not given, all lines will be tested. NOTE: The hyphen is part of the argument string and must be included for the command to function. Subcommands:

Control

-e Enable bert generation/monitoring for line(s) Can be immediately followed by the test pattern index value

(See -lp below). If none is included in the command, the last-used pattern will be implemented.

-d Disable bert generation/monitoring for line(s)

-i Inject error. Index specifying type of error to inject. If no error is specied, last error selected is used. Reference

-lp List available pseudo-random bit patterns

(See Table 16 on Page 52 for options.)

-le List available errors to inject

(See Table 17 on Page 53 for options.) stats Display bert statistics Table 16. Pseudo-Random Bit Patterns Index Description 0 1 2 3 4 Unframed 2^11 (Factory Default) Unframed 2^15 Unframed 2^20 Unframed 2^23 Unframed 2^11 with 7 zero limit Data Inversion No Yes No Yes No 52 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C Data Inversion No No Table 16. Pseudo-Random Bit Patterns Index Description 5 6 7 8 9 10 11 12 13 14 15 Unframed 2^15 with 7 zero limit Unframed 2^20 with 14 zero limit

(QRSS/QRS/QRTS) Unframed 2^23 with 14 zero limit (non-standard) No Framed 2^11 Framed 2^15 Framed 2^20 Framed 2^23 Framed 2^11 with 7 zero limit Framed 2^15 with 7 zero limit Framed 2^20 with 14 zero limit

(QRSS/QRS/QRTS) Framed 2^23 with 14 zero limit (non-standard) Table 17. Errors to Inject No Yes No Yes No No No No Index Description 1 2 3 4 5 6 7 8 CAS multiframe (MAS) pattern error (E1 only) Fs (T1) or MFAS (E1) PRBS error Change of frame alignment, 1 bit minus Change of frame alignment, E1, 1 bit plus CRC6 for T1, CRC4 for E1 Frame bit error...Ft, FPS, or FAS bit error depending on current framer mode Linecode violation Background on BERT command:

The bit error-rate test command, bert, is used to evaluate the link between the LEDR data interface and the customer premises equipment

(CPE). When used, the LEDR radio will send a test pattern out of the LEDR FT1/E1 Data Interface lines towards the CPE while simulta-

neously attempting to receive the same pattern back from the CPE. For example, you can loopback the CPEs external data devices I/O, then issue a bert command to the LEDR radio to check the integrity of the wire connection. The test pattern can be user-selectable. (See bert com-

mand Options above for further information.) NOTE: The bert command will not test or evaluate the integrity of the LEDR radio link. (See BENCH TESTING OF RADIOS on Page 124 for further information.) MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 53 NOTE: When operating FT1 or FE1 interfaces, this command tests all T1/E1 timeslots without regard to the timeslot commands configuration. boot Boot from Active/Archive Software Usage: boot [<1|2|-s|-o>]

This command is used to view or change the radios active software image. If boot is entered alone, the currently active firmware image (1 or 2) is displayed. A selection of 1 or 2 after the command (e.g., boot 2) ini-

tiates a reboot from that image. (A message appears to confirm that you wish to reboot the radio firmware.) Upon reboot, the radio and all radio functions are restarted in a manner similar to turning the radio power off and then on again. The radio is taken out of service until it re-initializes, and the link loses synchronization until the reboot process completes and the demodulators at both ends reacquire the radio signals. A choice of software images allows booting an alternate version of radio software. The ability to have two radio-resident software images allows radio software reprogramming over-the-air and the ability to restore operation to the original software if required. Subcommands:

1 Boot from Image 1 2 Boot from Image 2

-s Boot from the active (same) image

-o Boot from the inactive (other) image buzzer Buzzer Usage: buzzer This command briefly sounds the radios piezo buzzer for testing. It should be used only from the CONSOLE Port. Example Response:

buzzer: Starting test buzzer: Test complete clkmode 530 Clock Mode (Subrate Radios Only) Usage: clkmode [<internal|exttx|looped|extdce>]

This command displays or sets the source of the radios transmit clock. For synchronization purposes, several different clocking schemes can be used. See Transmit Clock Selection (Subrate Radios Only) on Page 23. 54 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C FT1 E1 Subcommands:

internalInternal oscillator sources TC; RC derived from far end of radio link (default). exttxETC accepted from external equipment on EIA-530 inter-

face; RC derived from far end of radio link. loopedRecovered RF (RX) clock; TC is synchronized to RC;

RC is derived from far end of radio link. Note: Do not use looped clocks at both ends of any radio link. extdceETC and ERC are accepted as inputs on the EIA-530 interface. NOTE: Earlier versions of the software may display the Clock Mode as NORMAL instead of INTERNAL. Firmware Version 2.4.0 and Later Use the clkmode command to determine which port has been selected to drive the timing at the inter-

face. Firmware Version 2.3.1 and Earlier This command allows the var-

ious possible clock sources to be prioritized. As timing sources become available, the highest-priority source will be chosen by the system. If attaching to the network or equipment that provides timing, a universal form of the command would be clkmode 1 2 3 4 internal. If attaching to equipment that will provide looped-back timing, a universal form of the command would be clkmode remote internal. If both ends of the link pro-

vide looped timing, the internal clock source should be selected at one end by entering clkmode internal. Note that at least one end of the link should have either network or internal timing selected. NOTE: Firmware versions 2.3.1 and earlier, require that this parameter be properly configured for correct operation of the link. More recent firmware versions do not require that this item be manually configured. However, the clkmode command may still be used to determine which port is being used to drive the timing. Firmware Version 3.0.0 and Later The clkmode command applies only to the EIA-530 interface. coffset Carrier Offset of Radio Modem Usage: coffset This command displays the Modem Carrier Frequency Offset. MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 55 con Console port configuration on LEDR front panel Usage: con (baud [300|1200|2400|4800|9600|19200|38400|115200]) (parity

[none|even|odd]) This command sets or displays the CONSOLE Ports operating parame-

ters. The CONSOLE Port data rate is set or displayed using the baud sub-

command. The parity is set or displayed using the parity subcommand. The default setting is 9600 bps, no parity, 8 data bits and 1 stop bit. config Configuration Usage: cong [get|send|getall] [lename|console] [hostIP]

This command is used to get or send a radio configuration file. The radio stores its configuration data in a file that you can download using the config send command. The output can be directed to a file or to the NMS window, either in a Telnet session or a serial NMS session. The config send command allows sending the configuration file over the Ethernet management channel and storing it on a PC running a TFTP server. Subcommands:

sendUpload entire radio configuration file to host (includes all radio-specific data) getDownload radio configuration file from host (DOES NOT download radio-specific data) getallDownload entire radio configuration file from host

(including all radio-specific data) Radio-specific data includes IP address, network settings, frequencies, target power thresholds, calibration data, and IP routing table. Command Example: config send config.txt 192.168.1.14 This sends the configuration file to a TFTP server running on host 192.168.1.14 and stores it as a file called config.txt. date Date Usage: date [MM/DD/YYYY]

This command sets or displays the date and time of the radios internal real-time clock. The real time clock operates from an internal lithium battery so it is running even if the radio has no DC power connected. The date format may also be set or displayed from this screen for one of three formats: U.S., European, or generic. The real time clock is fully compliant with year 2000 standards. 56 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C Subcommands: date format [<1-3>]

Date Format 1: mm/dd/yyyy (All numbers) Date Format 2: dd/mm/yyyy (All numbers) Date Format 3: dd-MON-yyyy (English abbreviation of month) Example Response: date: 07-JUN-1999 08:11:30 dtren DTR Handshaking Usage: dtren [<on|off>]

The dtren command sets or displays the status of the DTR (handshaking) input. Example Response: dtren: on ethernet Ethernet Ports Hardware Address Usage: ethernet This command displays the fixed hardware address of the radios Ethernet port. This address is globally unique; it is assigned at the fac-

tory and cannot be changed. events Events Usage: events [subcommand] [<arguments>]

Subcommands:

pending lter [event#] [count]

init desc [<event#>]

This command allows viewing the pending events (pending), sup-

pressing the notification of particular events (filter), initializing events processing (init) and display of event descriptions (desc). To turn off log-

ging (notification in the event log) for a particular event, the filter count value should be set to zero. Events 135-138 are remote alarm in [1-4], respectively, which reflects the event state of the alarm in [1-4] of the remote-located radio at the other end of the RF link. Example Response:

events {events}: -DEMOD_ACQUISITION (Event #27) events: Event#0 Filter count=1 events {init}: The event log has been re-initialized events {desc}: Event#40 Description-

IO2_DIG_REM_LPBACK evmap Event Mapping (for Alarm Output and LEDs) MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 57 Usage: evmap [subcommand] [event #] [arguments]

This command sets or displays which radio system events cause alarm indications on the front panel LEDs or the rear panel ALARM I/O con-

nector. The user can rename the alarm events, but they cannot be deleted, nor can new ones be created. The subcommands specify which output will be asserted (led or aout) upon occurrence of an event #. Multiple outputs can be specified with spaces between them. The dump option allows determining the current event mapping for all of the events or, optionally, a specified numeric range of events. Events 135-138 are remote alarm in [1-4], respectively, which reflects the event state of the alarm in [1-4] of the remote-located radio at the other end of the RF link. Use the event filter counter to enable each particular event. Use evmap and map to alarm output contact when necessary. Subcommands:

led [ioalarm|txalarm|rxalarm|alarm|none]Maps front panel LED(s) to an event. aout [none|1|2|3|4]Maps an alarm output(s) to an event. dump [<range>]Display the LED and alarm output mappings for all events. Example Response:

evmap: Event #0 LED alarm evmap: Event #0 Alarm Output NONE See Figure 8 for reference to the Front Panel LEDs. Refer to Alarm Rear Panel on Page 131 for the pinouts of the ALARM I/O connector and Disabling the Front Panel Alarm LED for Unused E1 Option Ports on Page 89 for further information. fec Forward Error Correction Statistics Usage: [fec <clear>]

This command displays corrected bytes and uncorrectable FEC block errors. Example Response:

fec: 1812992 Correctable Bytes fec: 2 Uncorrectable Blocks freq Frequency (of TX & RX Channel) Usage: freq [<tx|rx>] [<freq>] [<freq>]

This command sets or displays the transmit and receive frequency. Example Response:

freq {TxFreq}: 942175000 Hz freq {RxFreq}: 944175000 Hz 58 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C fset Frequency Setting Usage: fset [<min freq>] [<max freq>]

This command sets the absolute frequency limits of the transmitter and receiver. Example Response fset {Tx MinFreq}: 1350000000 Hz fset {Tx MaxFreq}: 1535000000 Hz fset {Rx MinFreq}: 1350000000 Hz fset {Rx MaxFreq}: 1535000000 Hz fstruct Frame Structure FT1 E1 FE1 Usage: fstruct [linelist] [mode <0-7|none>]

This command is used to set or display the span(s) frame structure. The

[linelist] variable represents a list of line interfaces. This entry can be either a single line number or line name (see linename command), a comma-separated list of line numbers or line names, a range of line numbers (i.e., 1-4), or if linelist is not given all lines. In general, this parameter should be configured to match the frame structure used by the customer premises equipment. The fstruct com-

mand also controls the generation of performance report messages in ESF modes. In E1 radios, an unframed mode is available by issuing the command fstruct mode 8. In Fractional-E1 mode timeslot 0 is always sent, and for fstruct modes 4 through 7, timeslot 16 must be added to the payload list for proper oper-

ation. Table 18 shows a list of line mode values for T1 interfaces and Table 19 for E1 interfaces. Table 18. T1 Frames Line Mode Values Value Mode 0 1 2 3 4 5 6 FT only (default) ESF ESF + PRM SF SF + JYEL ESF + CRC ESF + CRC +PRM MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 59 Table 19. E1 Frames Line Mode Values Value Mode 0 1 2 3 4 5 6 7 8 FAS only (default) FAS + BSLIP FAS + CRC FAS + CRC + BSLIP FAS + CAS FAS + CAS + BSLIP FAS + CRC + CAS FAS + CRC + CAS + BSLIP Raw, unframed, transparent mode. g821 G.821 Information Usage: demod io1|io2|io3|io4|all [clr]

This command is used to show or reset the radios G.821 information. The LEDR family of radios support the ITU G.821 recommendation for display of four categories of statistical availability information: avail-

able seconds, errored seconds, severely errored seconds, and unavail-

able seconds. Example Response:

Demodulator: ERROR FREE Savail: 1036 Sunavail: 0 ES: 0 SES: 0 group Group Number in LEDR System Usage: Group [<0-99>]

This command sets or displays the network group in which the radio is operating. Example Response: group: 1 In a typical system, all the radios would operate in the same group, allowing the flow of network-management and orderwire activity between radios and from one radio link to any other in the system. At a repeater site, all radios must be set to the same group number (and not group zero) for this flow of information to take place. Setting group numbers differently in repeater systems isolates links from each other from a network-management perspective, allowing segmenting net-

works and controlling the flow of network-management information. Across a radio link, groups can differ from each other; only radios phys-

ically connected by Ethernet cables to each other or to the same hub must have the same group number to intercommunicate. 60 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C Setting a radios group to zero prohibits all network management traffic from flowing to and from that radios Ethernet port. help or?

Help for Users Usage: help This command can be used alone, to list all available commands, or with a specific command, to provide syntax assistance. Entering help before or after a command will display the usage and possible subcommands of the command. The character? may also be used to obtain help. http HTTP Server in LEDR Radio Usage: http Displays the status of the radios internal HTTP server accessible through the radios ETHERNET Port. The HTTP server supports browser-based management. Use the http command by itself to verify the server is running and http start command to reboot the server. icopy Image Copy Usage: icopy [<app|dsp|fpga|scripts>]

This command is used to copy the active software image to the inactive software image. Each radio stores two independent firmware files that control the radios operation. The radio uses one of the files as the active software, which is running. The other software file is inactive and is not running. The ability to have two firmware images allows firmware reprogramming to be done over-the-air and provides the ability to restore operation to the original software if required. The icopy command allows copying all, or a selected subset, of the regions of the active image to the inactive image area. This is typically used to update the inactive image after loading new firmware and rebooting the radio from the new image. To view or change the active firmware image see boot on Page 54. Idle Pattern Usage: idlepat [<linelist>] [slots <slotlist>] <pattern>

This command is used to set or display the bit-pattern used in the idle timeslots. Some equipment requires a particular pattern. To set the bits to all ones, use the command idlepat ff. To set the bits to a zero followed by seven ones, use the command idlepat 7f. This command does not apply to subrate models. idlepat FT1 E1 FE1 MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 61 Argument Definitions:

linelistRepresents a list of line interfaces. It can consist of a single line number or linename, a comma separated list of line num-

bers or line names, a range of line numbers (i.e., 14) or, if linelist is not given, all lines. See Table 18 on Page 59 for a list of line numbers. slotlistA list of timeslots consisting of a single slot number, comma separated list of slot numbers, or a range of slot num-

bers (i.e., 2-8). patternA 2 hex digit value (default value is 17). info Information as Selected by User Usage: info [<owner|description|contact|name|location>] [<string>]

info clear [<owner|description|contact|name|location>]

This command is used to program information into (or clear it from) radio memory that is particular to the radio site or installation. The infor-

mation is intended for identification and memorandum needs. Five text fields are provided. The owners name string is limited to 10 characters. The description, contact, location, and name text fields are limited to 254 characters. Any standard, printable ASCII characters are allowed. The description field is programmed at the factory and is not user-definable. To display the owners name text field enter info owner. To display the contact information enter info contact. To display the name information enter info name. To display the location information enter info location.To display all the parameters enter info. To change the info text, enter text after info owner or other info field name. interface Interface for User Data 530 FT1 E1 FE1 Usage: interface [e1|t1|530]

This command is used to set or display the payload data interface. If an optional data interface board is installed, the user may select between the T1 or E1 interface modes. The system will recommend a reboot and provide a prompt to do so. Example Response:

interface {Line}: e1 62 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C NOTE: 1E1 through 4E1 data rates are not supported when using the EIA-530 interface. The maximum EIA-530 data rate is 768 kbps. interleave Interleave Usage: interleave [1-12]

This command is used to set or display the interleave depth. Range:

112. Default: 12. (Actual values are 1, 2, 3, 4, 6 and 12.) The interleave setting must match at both ends of a radio link, or the link cannot syn-

chronize regardless of any other radio settings or signal strength. Larger interleave settings cause longer link latency; in latency-sensitive appli-

cations, interleave value should be reduced to as small a value as is pos-

sible while maintaining good link performance (See the g821 demod command). Example Response:

interleave: 1 Background:

In digital communications, interference often occurs in the form of short noise bursts. These bursts normally corrupt a series of consecutive bits. Interleaving is a digital algorithm that allows Forward Error Correction

(FEC) to better handle bursts of noise. Interleaving reorders the data so that the symbols that would normally be neighbors in a given block are spread among multiple blocks. FEC works on a block of data of a spe-

cific size and can properly correct errors as long as the number of errors is small enough. With interleaving, the number of errors that occur within a single block is reduced, thereby allowing the FEC to more effectively correct burst errors. The value of the interleaver function should not be changed unless there are latency limitations for the radio link. If low latency is required, then the interleave can be changed, but the ability to correct for the influence of burst-noise on the BER will be reduced. ip Internet Protocol Settings Usage: ip [subcommand] [<argument>]

Subcommands:

address [x.x.x.x]

netmask [x.x.x.x]

gateway [x.x.x.x]

IP port [ETH|AIR]

MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 63 This command sets or displays the Internet Protocol (IP) settings for the LEDR radio. The subcommands allow you to set the IP address, IP net-

mask, IP gateway, or IP port. The port setting determines whether IP com-

munication to and from a particular radio occurs over the radio link or via a PC (or other networked device, such as a router) directly connected to the radios ETHERNET port. See Network on Page 39 for additional information. Example Response:

IP Address: 10.2.142.143 IP Netmask: 255.255.0.0 IP Gateway: 0.0.0.0 IP Port: ETH iverify Image Integrity Verification Usage: iverify [image <1|2>] [<app|dsp|fpga|scripts>]

This command is used to determine the data integrity of the two firm-

ware image files that reside in the radio. (See also icopy, above.) lcd Example Response:

iverify: Image has been veried Liquid Crystal Display Test Usage: lcd [<on|off|restore>]

This command starts a two-part test of the radios front panel LCD. When lcd is first entered, the display should appear with all blocks black. When the pletely blank. key is pressed, the screen should change to com-

RETURN led Light Emitting Diodes (LEDs on Front Panel) Usage: led [<alarm|rxalarm|txalarm|ioalarm|all|restore>] [<on|off>]

This command is used to test the front panel LEDs. If no argument is given, all front panel LEDs (except POWER) should flash in sequence. Press Control-C to end the test. (See Disabling the Front Panel Alarm LED for Unused E1 Option Ports on Page 89 for further information.) Command Example:

led alarm on Returns:

led: Alarm LED ON 64 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C line FT1 E1 FE1 FT1 Attributes of lines (cables) used with the LEDRs T1 or E1 Interface. This command is used to set or display the internal pulse template selec-

tion used by the LEDR interface to compensate for signal distortion cre-

ated by various lengths and types of interface cables. The [linelist] variable represents a list of line interfaces. It can consist of a single line number or line name, a comma-separated list of line num-

bers or line names, a range of line numbers (i.e., 14), or if linelist is not given all lines will be displayed. See Table 18 on Page 59 for a list of line numbers. Usage For T1: line [linelist] [cable length<04>] [spec]

T1 interfaces require setting of a minimum of two variables: cable length and ITU cable specification. Table 20 show specification options and Table 21 the lists values used for various lengths of standard 100 twisted pair cables. Table 20. ITU Cable SpecificationsSubcommand [spec]

Specification g.775 (Default) i.431 Table 21. T1 Cable Length ValuesSubcommand [cable length]

Value 0 1 2 3 4 Line Length (Meters) 0.3 to 40 (Default) 40 to 81 81 to 122 122 to 163 163 to 200 Line Length (Feet) 1 to 133 feet (Default) 133 to 266 feet 266 to 399 feet 399 to 533 feet 533 to 655 feet MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 65 E1 FE1 Usage For E1: line [linelist] [spec]

The only cable specification needed for E1 is the ITU cable type. Table 22 lists values used for various specifications for standard 120 ITU-T G.703 cables. Table 22. E1 Cable SpecificationsSubcommand [spec]

Specification g.775 (Default) i.431 Command Example:

LEDR> line Returns:

{spec}: i.431 line {LINE1} {cable}: ITU-T G.703 120 Twisted Pair line {LINE2} {cable}: ITU-T G.703 120 Twisted Pair line {LINE3} {cable}: ITU-T G.703 120 Twisted Pair line {LINE4} {cable}: ITU-T G.703 120 Twisted Pair

{spec}: g.775

{spec}: g.775

{spec}: g.775 linecode Line Code FT1 E1 FE1 linemap Usage: linecode [linelist] [B8ZS|AMI|HDB3]

This command sets or displays the radios linecode (T1: B8ZS or AMI;

E1: HDB3 or AMI). The [linelist] variable represents a list of line interfaces. It can consist of a single line number or line name, a comma-separated list of line num-

bers or line names, a range of line numbers (i.e., 14), or if linelist is not given all lines will be displayed. See Table 18 on Page 59 for a list of line numbers. The most typical Fractional-T1 selection is to choose B8ZS for all ports by entering linecode b8zs and E1 interfaces choose HDB3 for all ports by entering linecode hdb3. Example Response:

linecode: HDB3 Line Mapping Usage: linemap [maplist]

66 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C FT1 E1 FE1 This command is used to set or display the current span mapping con-

figuration for E1 and T1 configurations. The maplist variable consists of from 1 to 4 alpha-numeric characters specifying line interface to span mapping. Valid numbers are 14. Valid span characters are ad. Example: Entering linemap 1d 2b 3a 4c causes the following:

maps line 1 to span d maps line 2 to span b maps line 3 to span a maps line 4 to span c Figure 16 shows the example pictorially. There are no restrictions of which lines are mapped to which data channel spans. Invisible place holder LEDR LINE

(RJ-45 JACK) E1/T1 SPAN 1 2 3 4 Span A Span B Span C Span D Figure 16. Example of Linemapping NOTE: The cluster of four RJ-45 jacks on the rear of the radio is coded from left to right as 1, 2, 3 and 4 as viewed from the outside of the chassis. linename Line Name FT1 E1 FE1 Usage: linename <linelist> <namelist>

This command is used to set or display meaningful names of up to 16 characters to the four possible line interfaces.The [linelist] variable rep-

resents a list of line interfaces. It can consist of a single line number or line name, a comma separated list of line numbers or line names, a range of line numbers (i.e., 14) or, if linelist is not given, all lines. See Table 18 on Page 59 for a list of line numbers. The namelist variable consists of a list of names. It can consist of a single name or a comma/whitespace-separated list of names. Names can be up to 16 characters long. linerr Line Errors Usage: linerr [linelist] [on|off]

MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 67 FT1 E1 FE1 log This command measures and displays the line performance between the radio and customer equipment. Entering the command linerr on will ini-

tialize the line error measurement feature. The [linelist] variable repre-

sents a list of line interfaces. It can consist of a single line number or line name, a comma-separated list of line numbers or line names, a range of line numbers (i.e., 14), or if linelist is not given all lines will be dis-

played. See Table 18 on Page 59 for a list of line numbers. Log of Events Usage: log [subcommand] [<argument>]

Subcommands:

view [critical|major|minor|inform]

clear send [filename] [hostIP]

This command is used to display and manage the event log file. Without a subcommand, the complete log file will be displayed one page at a time. If you are interested in less than the full report, use one of the fol-

lowing subcommands:

viewSets or displays the types of events to be displayed. clearResets the event log and purges all events from memory. sendUploads the event log information to an IP address using TFTP protocol in a way similar to the config command. (See config command on Page 56.) NOTE: When setting up a link for the first time, after powering up the unit, you may want to clear the event log. After logging in as SUPER, enter the command log clear. login Log Into the CONSOLE Port Usage: login [username]

This command allows access to configuration and diagnostics informa-

tion as allowed by the radio system administrator. You can shorten the login sequence by following the login command with the user/account name (username). Example:

LEDR> login Returns:

Username>

Type: eldserv (or appropriate user name) 68 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C Returns:

Password>

Type: (password) NOTE: User names and passwords must not exceed eight characters and are case sensitive. Do not use punctuation marks. See user command on Page 86 for more information on user access levels. NOTE: Only one user can be logged in through the CONSOLE Port at a time. Any new login will close the previous user/account. Other users can login simultaneously through the ETHERNET Port or front panel. logout Logout Usage: logout This command is used to log out a user. Subcommands:

loopback Loopback Functions The loopback command is used to set or display the loopback mode that can be used for diagnostic purposes. Entering loopback without any parameters displays the current loopback mode. Various data loopback modes can be used for diagnostic purposes. To loop back Line Interface 1 towards itself, use loopback iol 1. To loop back all line interfaces towards themselves and test the T1 option, use loop-

back local. To loop back all data at the remote site towards the RF path, use loopback remote. Entering loopback without any parameters displays the current loopback mode. Usage 1 for Fractional-T1:

loopback [none|rf|local|remote|iol [linelist]|ior [linelist] <timeout>]

Usage 1 Subcommands:

iolThe iol subcommand, for I/O local, refers to the local line loop-

back. localEnables a local digital loopback mode. With this test, incoming bits on the EIA-530 interface are sent back out the radios DATA con-

nector before the modem module. This can be used to verify proper interconnection between the radio and the connected equipment. None FT1 E1 FE1 MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 69 of the radios RF circuitry is involved in this test. (This description covers only EIA-530 operation.) For T1/E1 operation, the local subcommand enables a local digital MUX loopback in the radio transceivers FT1 Interface Board before going out to the main transceiver board. noneDisables all loopback operation. This is the mode for normal point-to-point operation. remoteEIA-530 Operation: Instructs the radio at the other end of the link to echo all of the data it receives. This is an effective way of testing the entire communications system, including the transmission path over the air. (In the event of a communications failure with the remote radio, the message Remote Error is displayed, and no loop-

back mode is selected. T1/E1 Operation: The remote subcommand mimics the ior subcommand described below. rfEnables an RF loopback mode. This mode allows testing of the local radio transceivers transmit and receive chain. interaction between NOTE: RF loopback testing is a valuable diagnostic tool, but it should not be considered an exhaustive test of the transceiver. In some cases, receive phase-locked loops (PLLs) can occur, causing erroneous results during testing. Changing the transceivers RF output setting may resolve these problems. Also, in some configura-

tions, insufficient signal strength for RF loopback testing may exist. transmit and the In addition, on all LEDR radios except the LEDR 1400 Series, the transmit and receive frequencies must be within the same subband for RF loopback to function. Variables:

iorAn abbreviation for I/O remote, refers to the remote line loop-

back. Remote loopback port selection is relative to the local port. The radio link will translate any line mapping to select the correct physical remote port to loop back, based on the selected local port. linelistRepresents a list of local line interfaces. It can consist of a single line number or line name, a comma-separated list of line numbers or line names, a range of line numbers (i.e., 14), or if linelist is not given all lines. See Table 18 on Page 59 for a list of line numbers. timeoutThe timeout variable may be set between 0 minutes (never time out) and 60 minutes. 70 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C FT1 E1 FE1 Usage 2: loopback [inb|outb] [linelist] [on|off] [-u <code>] [-d <code>]

Usage 2 (E1) subcommands:

inbRefers to the inband loopback configuration. outbRefers to the outband Extended Super Frame (ESF) loopback configuration. linelistRepresents a list of local line interfaces. It can consist of a single line number or line name, a comma-separated list of line numbers or line names, a range of line numbers (i.e., 14) or, if linelist is not given, all lines. See Table 18 on Page 59 for a list of line numbers. on|offTo turn the loopback feature on or off.

-u <code>Allows setting of the inband|outband loopback upcode. The inband code consists of 1-7 bits, binary format. Example: 00001

-d <code>The subcommand allows setting of the inband|outband loop-

back downcode. The outband code consists of 6 bits within the 16 bit ESF data link codeword. Example: 000111 within 16 bit codeword: 0<000111>0 11111111 model Model Number Usage: model This command displays the radio model number. This information is programmed at the factory and cannot be changed. MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 71 modem Modem Usage: modem [matrix id] [+cas]

This command sets or displays the radio modem modulation type and data rate. Table 23 shows the alphanumeric codes that can be entered for fullrate radios and Table 24 for codes for subrate radios. Note that the E1 selections are only valid on fullrate radios. Table 23. Modem Command Arguments for E1 (Fullrate) Radios1 Modulation Type 1xE1 DATA RATES 3xE1 2xE1 QPSK 16 QAM 32 QAM A7 B7 C7 B8 C8 C9 4xE1 C10 1.The available selections depend on the radios factory programmed bandwidth. See Table 9 on Page 22 for the allowable combinations of bandwidth, data rates and modulation types. Table 24. Modem Command Arguments for EIA-530 & FT1 (Subrate) Radios1 Modulation Type 64 kbps 128 kbps QPSK 16 QAM 32 QAM A1 B1 A2 B2 DATA RATES 256 384 kbps kbps A3 B3 B4 512 kbps 768 kbps B5 B6 C6 1.The available selections depend on the radios factory programmed bandwidth. See Table 9 on Page 22 for the allowable combinations of bandwidth, data rates and modulation types. Command Examples:

To set 32 QAM with 1xE1, enter modem C7 To set 16 QAM/384 kbps, enter modem B4 Special-Order Argument NOTE: The cas command functions only in radios equipped with either the FT1 or FE1 Interface and user firmware of revision 3.0 or higher. 72 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C FT1 FE1 network casSet or display the Channel Associated Signaling (CAS) status for Fractional-T1 or Fractional-E1 operation. The available selections are modem +cas (on) and modem -cas (off). This command provides for FT1 Robbed-Bit Signaling bits to pass over the link. In the FE1 case, this command, in conjunction with the fstruct command, ensures the proper handling of the timeslot 16 signaling bid. Network Usage: network This command displays the radios that can be reached via the Service Channel for Orderwire and Element Management System (EMS) diag-

nostics. Example Response:

Network Address 10.2.142.148 10.2.200.196 Netmask 255.255.0.0 255.255.0.0 RF Hops 0 1 Ethernet Hops 0 0 Received on Port LPBK AIR Owner Tech Serv 1 Tech Serv 2 passwd Password Usage: passwd This command is used to change the password for the user currently logged in. A maximum of 8 characters is allowed, and it is case sensi-

tive. ping Ping IP Address (Send ICMP Echo Request) Usage: ping [ip address] [reps]

This command is used to verify the accessibility of any IP address on the network to determine availability and measure network response time. This commands requires proper IP Routing and IP connectivity. ipaddressIP address to which you will send the request reps - Number of requests-to-send (default = 1, max = 1000) Example:

LEDR> ping 10.2.233.12 5 Example Response:

PING 10.2.233.12: 56 data bytes 64 bytes from 10.2.233.12: seq=1, ttl=255, rtt=49ms 64 bytes from 10.2.233.12: seq=2, ttl=255, rtt=6ms 64 bytes from 10.2.233.12: seq=3, ttl=255, rtt=9ms 64 bytes from 10.2.233.12: seq=4, ttl=255, rtt=33ms 64 bytes from 10.2.233.12: seq=5, ttl=255, rtt=12ms MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 73 pll Phase Locked Loop Displays several key frequency control parameters, including the Min-

imum frequency step, the reference frequency, oscillator output, current TX & RX frequencies, and TX/RX PLL status. Example Response:

pll:

Min Freq Step = 25000 Hz, Reference = 400000 Hz, ICPO = 1600 uA Tx Freq = 438075000 Hz, Rx Freq = 428075000 Tx PLL Status: Locked Rx PLL Status: Locked pmmode Power Measurement Mode Usage: pmmode <on|off>

This command is used to generate an unmodulated carrier on the trans-

mitter frequency for the purpose of measuring RF output power or fre-

quency stability using a spectrum analyzer. Example Response:

pmmode: off NOTE: Enabling the power measurement mode (pmmode on) will take the local link down (out-of-service). rdnt Redundant (Protected Operation) The rdnt command is used to manage protected operation of the LEDR radio and display operating status. Usage: rdnt [subcommand] [arguments]

Subcommands:

active default hitless ip mode nsd status swxcvr temp mode The following subcommands are divided into two groups: read only and read and set. Read Only activeShows whether the currently selected transmitter is active or inactive. 74 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C defaultDisplays whether the radio is the default radio in a protected configuration. statusProtected status of this radio and the sibling radio. Read & Set hitlessSets or displays the hitless (error-free) switching status of the receivers. It can be enabled or disabled using the hitless on|off command. In protected operation, either receiver (regardless of which transmitter is active) can provide data to the user data port(s) in hitless mode. In non-hitless mode, only the receiver in the active radio provides received data. Radios operated in a space-diversity configuration must be config-

ured to use hitless switching. ipUsed to set or display the IP address to be kept in the memory of this unit of the associated (sibling) radio in a redundant pair of transceivers. In other words, the rdnt ip setting of the top radio in a protected pair must be set to the bottom radios IP address for proper switching and net-

work-management functionality. NOTE: The associated radio (sibling) IP address should be programmed to the IP address of the other radio connected to the Protected Switch Chassis. The associated radio IP address is used by the redundant radio to share information between the units. This address is necessary for warm-standby switching. The associated radio IP address parameters do not affect IP routing and forwarding, SNMP, or Telnet. The rdnt swxcvr will not operate correctly if this parameter is not set correctly. mode [#]Set or display one of three redundant operation modes

(0 = Standalone, 1 = 1+1 Hot Standby, 2 = 1+1 Warm Standby). statusShows the state of both radios. Two status lines are displayed;

This Radio and Other Radio. swxcvrForces a switchover to the inactive radio transceiver. (The newly selected unit becomes the active transceiver.) The rdnt ip param-

eter must be configured correctly on both radios in order for the swxcvr command to operate correctly. NOTE: The rdnt swxcvr command should not be used within 2 minutes of a power-up to ensure reliable communications exist between the two transceivers. tempSet or display an over-temperature threshold (final amplifier temperature in degrees Celsius), at which temperature switchover to the other radio occurs. MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 75 nsdEnable or disable network self-discovery between the units in a protected pair Example Response for rdnt command:

rdnt {status}: This Radio = OK rdnt {status}: Other Radio = OK rdnt {active}: inactive rdnt {mode}: 1+1 Hot Standby rdnt {ip}: 10.2.233.12 rdnt {hitless}: on rdnt {default}: no rdnt {temp}: 50 rdnt {nsd}: on reframe Reframe Criteria for User Interface Ports FT1 E1 FE1 Usage: reframe [linelist] [2of4 | 2of5 | 2of6 | CFAS | CRC]

This command is used to set or display the reframe criteria. The [linelist]

variable represents a list of line interfaces. It can consist of a single line number or linename, a comma separated list of line numbers or line names, a range of line numbers (i.e., 14), or if linelist is not given all lines. See Table 18 on Page 59 for a list of line numbers. For Fractional-T1:

2of4 2 out of 4 Fbit errors (default) 2of5 2 out of 5 Fbit errors 2of6 2 out of 6 Fbit errors For E1:

CFAS Consecutive FAS errors (default) CRC 915 CRC (rx framer only) reprogram Load Radio Firmware Into LEDR Radio Usage: reprogram [subcommand] [<argument>]

Subcommands:network [lename] [hostIP]

status This write command loads the radio application software (firmware) into the LEDR chassis from an external resource using Trivial File Transfer Protocol (TFTP). A TFTP server must be running on the net-

work and properly configured to serve the necessary file(s). See OPTION 3: Uploading Firmware from a Remote Server via Ethernet on Page 97 for further details. rfocal Transmitter RF Output Calibration Table Usage: rfocal <freq region#> <cal-point#>

76 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C This command starts the RFOUT Calibration Sequence and should only be used when directed by MDS factory personnel. CAUTION: This command is used to recalibrate the internal trans-

mitter power output metering circuitry and may affect the accuracy of the power output level measurement. Contact the Technical Services Department at MDS for further instructions before using this command. Ask for technical publication, Retuning Procedure for LEDR II Radios, P/N 05-3633A01. Recalibration may be necessary if the radios transmit-

ting frequency has been significantly changed. For the LEDR 400 and 900 radios, this is generally a change of more than two radio channels. In addition, it is very important to verify the power calibration is incorrect on the new frequency by measurement with a calibrated external wattmeter before using this command. The radio frequencies of the LEDR 1400 radio can be changed without impacting the accuracy of the power metering circuits calibration. Example Entry: rfocal Example Response:

Region 0 Index 0, Rfout = 18 dbm, Gain = 17 Index 1, Rfout = 20 dbm, Gain = 28 Index 2, Rfout = 22 dbm, Gain = 47 Index 3, Rfout = 25 dbm, Gain = 79 Index 4, Rfout = 27 dbm, Gain = 110 Index 5, Rfout = 30 dbm, Gain = 170 Index 6, Rfout = 32 dbm, Gain = 210 RF Output Level Measurement Usage: rfout rfout This command displays the transmitter RF power output in dBm. See Watts-dBm-Volts Conversion on Page 132. rlogin Remote Login Usage: [<toUnitID>} [<UserName>]

The rlogin command is used to login to a remotely located radio via the CONSOLE Port. It can be used to log into any radio that appears in the network command display. MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 77 route Routing Tables for IP Usage:

route [command [destination] [mask netmask] [gateway] [port]]

The route command is used to add, delete or modify the IP routing table entries. Other radios in the network are automatically added to the routing table using the radios Network Self-Discovery. Routing IP traffic to other devices via the radios management channel can be per-

formed by adding routes to the radios routing table. Once the IP configuration is set using the ip command (Page 63), several routing entries will appear in the routing table. The first of these routes is the default route which has a destination address of 0.0.0.0. This route is used when a more appropriate route is not available. Thus it becomes the catch-all route. The second route that will appear is the default net-

work route. This route has a destination address calculated by anding the IP address and subnet mask together. The Next Hop address of this entry will be the default gateway configured using the ip command and the Interface will be the default port. This route is used to tell the radio how to reach its base network. The third route that is added has a destination address of 127.0.0.1. This is known as the loopback route and is used when the radio sends a packet to its own IP address. Primary Commands:

print Show the current IP routing table add [address] mask [netmask] [gw] [port]Add/Change a route gw is a gateway IP address port is specified as either ETH or AIR delete [address] mask [netmask] [gw]Delete a route gw is a gateway IP address storedDisplay all user-added stored routes flushDeletes all stored routes destinationSpecies the host to send command Command Arguments:

maskWhere the mask keyword is present, the next parameter is interpreted as the netmask parameter. netmaskSpecies a sub-net mask value to be associated with this route entry. gatewaySpecies gateway IP address 78 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C portSpecies IP port, either ETH or AIR Example 1 Entry:

LEDR> route add 10.2.150.1 mask 255.255.255.255 10.2.150.101 air Example 1 Response:

route: Route added Example 2 Entry:

LEDR> route stored Example 2 Response:

DestinationNet MaskNext HopInterface 10.2.150.1255.255.255.25510.2.150.101AIR 10.2.140.0255.255.255.010.2.227.51ETH Example 3 Entry:

LEDR> route print Example 3 Response:

DestinationNet MaskNext HopInterface 0.0.0.00.0.0.0 0.0.0.0ETH 10.2.140.0255.255.255.010.2.227.51ETH 10.2.150.1255.255.255.25510.2.150.101AIR 127.0.0.1255.255.255.25510.2.227.5LPBK Background:

The LEDR Series of radios can be configured to pass IP management traffic across the radios raw service channel. A process called network self-discovery automatically configures IP routes between all radios in a network (provided that the group command has been correctly config-

ured throughout the system. (See group on Page 60). Also, see the arp command on Page 51. IP management traffic routing allows configuring and monitoring devices other than LEDR radios using the same management channel, providing clean integration of SNMP, Telnet, TFTP, and other IP man-

agement methods via one channel that doesnt use any of the customer payload bandwidth of the radio network. Routes must be added to the radios at two points in the system to support routing IP traffic to and from the connected devices: 1. At the gateway end (where the management station is located), and 2. At the destination end. Routes are added to the radios using the same convention as used in the MS Windows, Windows NT, and DOS operating environments. The exceptions here are that a mask and port must be specified, as well as the target and gateway IP addresses. At both ends, the command used is exactly the same (see command Example 1, above). In the command MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 79 example given above, the route is being added at the gateway end. The difference is that at the gateway end, the port is air, and at the destination end, the port is eth. Routes do not need to be added at points between the gateway and destination, because the radio network handles the routing between radios via network self-discovery. However, in each radio, the IP gateway must be specified as the IP address of the radio at the net-

work-management gateway in the system. NOTE: Gateway Settings in Connected Devices In the connected IP-manageable device, use the local radios IP address as the default IP gateway for the device. NOTE: Routing in Protected Systems Each route added to a protected radio must be added to both units in the protected pair, as they are stored separately. The radios in a protected pair proxy for one another depending on which radio is active, so the routing functionality is unchanged and either radio in a protected pair can be specified as the gateway for a connected device; but if a protected LEDR radio is removed for servicing, all the routing information must be programmed in the remaining radio for proper IP management functionality. rssi Received Signal Strength Indicator Usage: rssi This command displays the received signal strength. The measurement is in dBm. Therefore, an RSSI of 80 dBm is stronger than a 100 dBm signal. rssical RSSI Calibration Usage: rssical <freq region#> <cal-point#>

This command starts the RSSI Calibration Sequence. See rfocal com-

mand on Page 76 for conditions. CAUTION: This command should never be used unless calibrated test equipment has shown the radio to have inaccurate RSSI calibration. Contact the Technical Services Group at MDS for further instructions before using this command. Example entry: rssical Example Response:

80 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C Region 0 Index 0, RSSI = 110 dbm, Gain = 104 Index 1, RSSI = 90 dbm, Gain = 40 Index 2, RSSI = 75 dbm, Gain = +1 Index 3, RSSI = 60 dbm, Gain = +28 Index 4, RSSI = 45 dbm, Gain = +61 Index 5, RSSI = 30 dbm, Gain = +97 rxlock Receiver locked onto Remote radio Usage: rxlock This command displays the current modem synchronization status. sabytes E1 Example Response: rxlock: Modem is locked SA Bytes in E1 Multi-framing Usage: sabytes [linelist] [bytes <bytelist>]

This command is used to set or display SA bytes in E1 multiframing. The [linelist] variable represents a list of line interfaces. It can consist of a single line number or line name, a comma-separated list of line num-

bers or line names, a range of line numbers (i.e., 14), or if linelist is not given all lines. See Table 18 on Page 59 for a list of line numbers. The bytelist variable consists 5 hex bytes (i.e., 3c) representing SA[4-8]. To keep a bytes present value when modifying higher bytes (i.e., modi-

fying SA[7] only) use a * character in the respective byte position. Example: sabytes 1 bytes *,*,*,3c changes only SA[7] for line 1 to 3c. sernum Serial Number of Radio Usage: sernum This command displays the serial number of the radio. The number dis-

played with this command matches the serial number printed on the serial number sticker on the radio chassis. snmpcomm SNMP Community Names Usage: [<read|write|trap>][<string>]

This command is used to set or display SNMP community names. Com-

munity names are passwords that are required to match at the SNMP management station and each radio or other SNMP agent. You can add security to the radio systems network management by choosing non-default community names (listed in the example) and setting the community names in your management software to match. Example Response:

snmpcomm {read}: public snmpcomm {write}: private snmpcomm {trap}: public MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 81 snr Signal-to-Noise Ratio of Incoming RF Signal Usage: snr This command displays the signal-to-noise ratio (SNR) of the received signal in dB. The SNR is an indication of the quality of the received signal. The higher this number, the higher the quality of the received signal. SNR readings are invalid when the receiver is unlocked. See rxlock command for details. status Status Usage: status This command is used to display key performance and configuration data. Example Response:

status {Tx Freq}:438075000 status {Rx Freq}:428075000 status {Bandwidth}:100 kHz status {Data Rate}: 256 kbps status {Interleave}: 1 status {Clock Mode}:internal status {RSSI}:78 dBm status {SNR}:28 dB status {Rx Lock}:Locked status {Tx RF Out}:30 dBm status {TxKey}: Keyed status {Temp}:37 Degrees C status {IP Address}: 192.168.11.49 status {IP Netmask}: 255.255.0.0 status {IP Gateway}: 0.0.0.0 svch Service Channel Settings Usage: svch [subcommand] [<argument>]

Subcommands: baud [300|1200|2400|4800|9600|19200|38400]

csize [58]

parity [none|even|odd]

stop [02]

This command sets or displays the Service Channel settings. For further information, see USING THE SERVICE CHANNEL on Page 101. telnetd Telnet Display or Terminate Session Usage: telnetd [kill session]

This command is used to display or kill (terminate) the current Telnet session(s). Example: telnetd 82 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C Response:

Session Username tns0 Rem. Addr. ENGR Connected 10.2.129.22 07/01/1999

@ 13:57:17 Use telnetd kill session to terminate the current session. temp Temperature of PA Device This command displays the radios power amplifier (PA) temperature. Example Response: temp: 35 Degrees C (PA Temperature) test Self-Test of Radio Hardware Usage: test [<0n>|<testname>]

CAUTION POSSIBLE EQUIPMENT DAMAGE This command starts a self-test function of the radio. There are several separate tests that can be run individually by specifying the test number after the command. CAUTION: Do not perform a transmitter PLL test while the radio is keyed, or the radios receive LNA may be damaged. NOTE: Performing a receiver or transmitter PLL test during normal link operation will take the link down for the duration of the test and the re-synchronization interval. The internal self tests are listed in Table 25. Table 25. Internal self tests Function Evaluated Number Name Flash Memory DRAM Memory Configuration Battery Radio A- to-D Circuits Transmitter Phase Locked Loop Receiver Phase Locked Loop Real-Time Clock FPGA Logic DSP CODEC 0 1 2 3 4 5 6 7 8 9 flash dram config batt atod txpll rxpll rtc fpga dsp 10 codec threshold Threshold of Performance Degradation MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 83 Usage: threshold [<level>]

This command sets or displays the performance degradation threshold(s) of the LEDR radio, at which time events are logged and SNMP traps are generated. Setting these thresholds to zero or a negative number will disable event logging and trap generation for those param-

eters. Example Response:

threshold {rssi}: 0 threshold {snr}: 0 threshold {coffset}: 0 threshold {temp}: 110 threshold {15mines}: 900 threshold {15minses}: 900 threshold {24hres}: 86400 threshold {24hrses}: 86400 rssidBm level below which an RSSI alarm is generated. snrValue below which a signal-to-noise level alarm is generated. coffsetMaximum tolerable RF carrier frequency difference between the local LEDR units transmit frequency and the incoming RF signal from the other LEDR radio. tempPower amplifier temperature above which an alarm condition is generated. 15minesNumber of errored seconds within the last 15 minutes. 15minsesNumber of severely errored seconds within the last 15 min-

utes. 24hresNumber of errored seconds within the last 24 hours. 24hrsesNumber of severely errored seconds within the last 24 hours. time Time of Internal Clock Usage: time [HH:MM[:SS]

This command displays or sets the time of the radios internal real-time clock. The radios real time clock operates from an internal lithium bat-

tery so it is running even if the radio has no DC power connected. The real time clock is fully compliant with Year 2000 standards. Time Slot Assignment Select which timeslots to transmit. This command has two uses; in Usage 1, the timeslots can be set or displayed. In Usage 2, all pending timeslots are committed/made active. timeslot FT1 FE1 84 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C The timeslots may be different at each end of the link. They will be monotonically mapped; that is, Slot 1 is mapped to Slot 13, Slot 2 is mapped to Slot 14, etc. To select timeslots 1 through 12, enter the com-

mand timeslot 1-12. Usage 1: timeslot [-d] [slotlist]

Usage 2: timeslot -c Variables:

d Disable timeslot(s) c Commit pending timeslots Modifications to the timeslot list are kept pending until all available slots have been assigned. The user can choose to commit slots when the last available slot is added to the pending list, or by using the -c option.

(See Usage 2.) The default action is to enable given timeslots. If no arguments are entered, the currently active timeslots and pending timeslots are dis-

played. The slotlist variable is a list of timeslots and can be a single slot number, comma separated list of slot numbers, or a range of slot numbers (i.e., 2-8). Timeslots can be entered in any order and are automatically con-

figured. Extra slots will be ignored. Unassigned timeslots in the pending list are signified by MA (must assign). NOTE: Enough slots for the full data capacity of the modem setting must be specified or the link will not synchronize. NOTE: FT1 timeslots are 124. E1 timeslots are 031. NOTE: In FE1 mode timeslot 0 is always selected. When frame struc-

tures are selected that contain CAS (fstruct 4-7) timeslot 16 must be selected. trapfilter Trap Filtering for SNMP Usage: traplter [<critical|major|minor|inform>]

This command sets or displays which events cause SNMP traps. Fil-

tering traps is done by category. Traps that are filtered are allowed to pass through the network-management system. (See trapmgr on Page 85 and snmpcomm on Page 81 for additional information.) trapmgr Trap Manager IP Addresses Usage: trapmgr [<1-5>] [<IP address>]

MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 85 This command sets or displays the trap manager IP addresses. These are the IP addresses of up to five network-management stations on which SNMP manager software is operating, and to which notifications of SNMP events (traps) are to be sent. The IP mask used for sending traps is that set by the ip command. (See ip on Page 63.) Example Response:

trapmgr: 1 = 10.2.129.22 trapmgr: 2 = 0.0.0.0 trapmgr: 3 = 0.0.0.0 trapmgr: 4 = 0.0.0.0 trapmgr: 5 = 10.2.129.1 trend Trend of RF Performance Indicators Usage: trend [<rssi|temp|rfout|snr|fec|ifec|time|all>] [<display time (msec)>]

This command is used to display continuously updated readings of:

RSSI, radio temperature, RF output, signal-to-noise ratio, and FEC errors (corrected and uncorrectable). The display can be stopped by pressing Control-C on the terminal. If the trend command is used by itself or with all (trend all), all associated parameters will be reported. More than one argument can be used to dis-

play several selected items in the desired order. NOTE: This command is not available from a Telnet session. txkey Radio Transmitter Keying Status Usage: txkey [on|off]

This command sets or displays the radio transmitter status. ON indicates the radio transmitter is keyed and transmitting. OFF indicates the trans-

mitter is not keyed. unitid Unit Identification Number for Orderwire and NMS Usage: unitid [<ID>]

This command sets or displays the radios unit identification number. This number is used for Orderwire signaling and by the NMS (Network Management System). (See USING ORDERWIRE on Page 99.) The factory default is the last three numbers of the unit serial number.

(1-999) Up Time Usage: uptime This command displays how long the radio has been powered-on. User Account Information LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C uptime user 86 Usage: user [subcommand] [<argument>]

Subcommands:

add <user> <pass> <perm>

del <user>

perm <user> <perm>

pass This command provides administrator access for setting new user accounts and permission levels. NOTE: The password (pass) and user names are case sensitive and may not exceed eight characters. Two quotation mark charac-

ters ("") may be used as a blank password. If quotation marks are used, the shift key or cap lock keys must be depressed. User permission (perm) may be set to: read (r), write (w), network (n) or administrator (a). The privileges granted by each level are as follows:

Read (r) is the lowest level of user access and allows radio informa-

tion to be viewed only. Changes to radio settings are not allowed. Write (w) allows most, but not all radio settings to be changed. Network (n) allows everything permitted by lower levels, and also allows changes to the radios IP conguration. Administrator (a) allows everything permitted in lower levels, and also allows changes to be made to user accounts (add, delete, mod-

ify). It is normally used by a System Administrator or other person responsible for the radio system. Example entry: user add eldserv secret w The above example shows the command string for adding a new user

(fieldserv), with write permission and a password of secret. Example Response: user: Command Complete NOTE: If you are logging in for the first time since the radio was shipped from the factory, refer to Page 25 for important login information. ver Version of Firmware/Hardware Usage: ver [frw|hdw|ext]

This command displays radio version information for firmware (frw), hardware (hdw) and Extended Version Information (ext). Example 1:

LEDR> ver frw MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 87 Response 1:

ver: LEDR Part #06-3451A01 ver: 2.4.3 (Version of firmware P/N above) Example 2:

LEDR> ver hdw Response 2:

ver: {Hardware version}: A Example 3:

LEDR> ver ext Response 3:

ver: Part #06-3451A01 ver: 2.4.3 ver:

ver: Image 1 ver: Region Expected Upgrade ver: Firmware 2.4.3 ver: DSP 1.1.0 ver: FPGA Ver1.22 ver: Scripts Ver1.44 ver:

ver: Image 2 (Active) ver: Region Expected Upgrade ver: Firmware 2.4.3 ver: DSP 1.1.0 ver: FPGA Ver1.22 ver: Scripts Ver1.44 ver: Option Ver1.56 ver {Active code}: compiled Aug 15 2000 08:47:46 ver: Option Ver1.56 Note: Blank lines following Ver: are spaces used as vertical separations between data groups. volume Volume of Orderwire Earpiece Usage: volume [<level (0255)>]

This command sets or displays the orderwire handset volume. Example Response: volume: 100 vox Voice Operated Transmit Usage: vox threshold <1100>

The vox command sets or displays the level/threshold at which the order-

wire microphone will key the transmitter. NOTE: When the orderwire microphone is spoken into, the audio will be heard by all LEDR radios in the network which currently have a handset plugged into the front panel ORDERWIRE jack. Only one station can transmit at a time; the circuit is half-duplex. Example Response: vox: 5 88 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C who Who is currently logged on to the Network Management Ports?

Usage: who This command displays users currently logged in to the radio operating system. 6.5 Disabling the Front Panel Alarm LED for Unused E1 Option Ports To disable the ALARM LED on the front panel for a particular E1 port, use the commands found in Table 26 according to the E1 port number. When alarm events are pending, the alarm condition for the unused E1 ports remains until a valid input signal (as defined by G.703) is applied. You must log into the LEDR radio as a user with Administrator priv-

ileges to execute these commands. If you are using a terminal program connected to the radio, send one command sequence at a time to the radio with a 5 ms delay between each line. Table 26. Commands to Disable E1 Port Alarms Disable the LED for IO1 Evmap led 74 none Evmap led 75 none Evmap led 76 none Evmap led 77 none Evmap led 78 none Evmap led 79 none Evmap led 80 none Evmap led 81 none Evmap led 82 none Evmap led 83 none Evmap led 84 none Evmap led 85 none Evmap led 86 none Disable the LED for IO3 Evmap led 100 none Evmap led 101 none Evmap led 102 none Evmap led 103 none Evmap led 104 none Evmap led 105 none Evmap led 106 none Evmap led 107 none Evmap led 108 none Evmap led 109 none Evmap led 110 none Evmap led 111 none Evmap led 112 none Disable the LED for IO2 Evmap led 87 none Evmap led 88 none Evmap led 89 none Evmap led 90 none Evmap led 91 none Evmap led 92 none Evmap led 93 none Evmap led 94 none Evmap led 95 none Evmap led 96 none Evmap led 97 none Evmap led 98 none Evmap led 99 none Disable the LED for IO4 Evmap led 113 none Evmap led 114 none Evmap led 115 none Evmap led 116 none Evmap led 117 none Evmap led 118 none Evmap led 119 none Evmap led 120 none Evmap led 121 none Evmap led 122 none Evmap led 123 none Evmap led 124 none Evmap led 125 none MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 89 To restore the factory default settings to all of the E1 ports, issue the commands shown in Table 27. Table 27. Restore Factory Defaults to Alarm Ports Evmap led 74 ioalarm Evmap led 75 ioalarm Evmap led 76 ioalarm Evmap led 77 ioalarm Evmap led 78 ioalarm Evmap led 79 ioalarm Evmap led 80 ioalarm Evmap led 81 ioalarm Evmap led 82 ioalarm Evmap led 83 ioalarm Evmap led 84 ioalarm Evmap led 85 ioalarm Evmap led 86 ioalarm Evmap led 87 ioalarm Evmap led 88 ioalarm Evmap led 89 ioalarm Evmap led 90 ioalarm Evmap led 91 ioalarm Evmap led 92 ioalarm Evmap led 93 ioalarm Evmap led 94 ioalarm Evmap led 95 ioalarm Evmap led 96 ioalarm Evmap led 97 ioalarm Evmap led 98 ioalarm Evmap led 99 ioalarm Evmap led 100 ioalarm Evmap led 101 ioalarm Evmap led 102 ioalarm Evmap led 103 ioalarm Evmap led 104 ioalarm Evmap led 105 ioalarm Evmap led 106 ioalarm Evmap led 107 ioalarm Evmap led 108 ioalarm Evmap led 109 ioalarm Evmap led 110 ioalarm Evmap led 111 ioalarm Evmap led 112 ioalarm Evmap led 113 ioalarm Evmap led 114 ioalarm Evmap led 115 ioalarm Evmap led 116 ioalarm Evmap led 117 ioalarm Evmap led 118 ioalarm Evmap led 119 ioalarm Evmap led 120 ioalarm Evmap led 121 ioalarm Evmap led 122 ioalarm Evmap led 123 ioalarm Evmap led 124 ioalarm Evmap led 125 ioalarm 7.0 STANDARDIZING RADIO CONFIGURATIONS 7.1 Introduction Setting up and configuring a network of point-to-point systems can be a frustrating task. To make the task easier and more predictable, the parameters of one LEDR radio can be used as a template for other radios in your system. You need only address the parameters that are site or unit-specific, such as an IP addresses. The cong command allows the user to upload/download the radios configuration data from/to a PC. There are two classifications of config-

uration dataradio-specific data and standard data. 90 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C Radio-Specific data is:

Frequencies Target Power Thresholds Calibration Data IP Address IP Routing Table Network Settings Standard radio data are the configuration parameters that are common in all LEDR radios. Both types of data can be uploaded and downloaded between the radio and a PC. It is up to the user to decide whether to download both types or just the standard (core) data. Once the data is on a PC, the file can be edited off-line, for example, the configuration data, if desired. The cus-

tomized configuration file can then be downloaded to other LEDR radios in your system from your PC. 7.2 Setup by TFTP To use this function the user will need:

A PC with a TFTP server running. The IP address of the PC running the TFTP server. If you do not know your computers address on a Windows PC, you can use the RUN function from the Start menu and enter winipcfg to determine your local PCs IP address. The IP address of the radio can be found by the use of the radios ip command. Downloading Procedure To download the configuration data from the LEDR chassis to a file (le-

name.txt) on the users PC, enter the following command:

LEDR> cong send [lename.txt] [1.2.3.4 <IP Address>]

The file, lename.txt, will be written to in the default path set in the TFTP server. The numeric string, 1.2.3.4, is the IP address of the PC destined to receive the file. Uploading Procedure To upload into a LEDR radio only the standard configuration data from a file on the PC (filename.txt) to the radio enter the following command:

LEDR> cong get [lename.txt] [1.2.3.4 <IP Address>]

MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 91 To download both the standard and radio-specific configuration data from a file on the PC (filename.txt) to the radio enter the following com-

mand:

LEDR> cong getall [lename.txt] [1.2.3.4 <IP Address>]

Ideally, the process of updating a system would go like this:

1. Upload the current conguration data from each radio to a specic le on your PC. At radio 1 CONSOLE Port enter: config send radio_1.txt 1.2.3.4 At radio 2 CONSOLE Port enter: config send radio_2.txt 1.2.3.4

(etc.) 2. Upgrade the software on each radio. 3. Boot from the new software. 4. Download the saved conguration data from Step 1 back into each radio using the getall subcommand so that you will get both the stan-

dard and radio-specic parameters. At radio 1 CONSOLE Port enter: config getall radio_1.txt 1.2.3.4 At radio 2 CONSOLE Port enter: config getall radio_2.txt 1.2.3.4 (etc.) 7.3 Setup Through the DB-9 CONSOLE Port You have the option of sending the configuration data to the CONSOLE Port instead of sending it to a file on a PC. Then the terminal program can be set to log the data as it is created by the radio. The advantage of this option is that you do not need to use the TFTP server, routing, etc. on the PC. During the upload, the LEDR software will prompt you to begin/end recording at the terminal program. You will also be prompted on how to end a download. When the config get downloading option is chosen (standard data only), the software will filter out all the radio-specific parameters as they come through. To upload the data to the CONSOLE Port:

LEDR> cong send console To download only the standard data via the CONSOLE Port:

LEDR> cong get console To download standard and radio-specific data: LEDR> cong getall console 92 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C

 

 

8.0 UPGRADING LEDR FIRMWARE 8.1 Introduction The LEDR radios firmware can be upgraded with new software releases that may be issued from time-to-time by Microwave Data Sys-

tems. To support firmware upgrades while the radio is in use, the LEDR radio contains two complete copies of its firmware. Once the inactive version is replaced, the radio can be rebooted using the code in the new firmware. However, if an error occurs during the download, the radio can easily recover because it always has a complete copy of firmware available. Reprogramming can be done through three common options:

1. Locally through the front panel CONSOLE Port

. 2. Locally using TFTP and Telnet through the ETHERNET Port

. 3. Remotely over a network connection using TFTP and Telnet to the ETHERNET Port

. The procedures that follow use one or both of two utilities found in MDS LEDR Utilities package. These utilities will facilitate local and remote transferring of firmware files to and from the LEDR radio. These applications are available from Microwave Data Systems on oppy disk

(P/N 03-3631A01) or on MDS Internet sites FTP section of the primary site of www.microwavedata.com. The following sections will explain how to program new firmware into the radio using each of the three connection options. They assume the LEDR Utilities are installed on each computer system named in the pro-

cedure. NOTE: The ETHERNET, SERVICE CHANNEL and CONSOLE Ports share a common data channel when loading firmware over-the-air. Transferring the radio firmware image file ( 1 MB), may take up to 30 minutes if there is other activity on any of the other ports. Regardless of your connection to the LEDR radio, loading data/firmware into the radios SRAM is much slower than loading software onto a PC hard drive or RAM. MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 93 8.2 OPTION 1: Uploading Firmware via the CONSOLE Port This method of upgrading the firmware is well suited to field service personnel that carry a laptop PC to field installation. Any computer run-

ning the Windows operating system is suitable. Figure 17 shows the basic arrangement. WINDOWS PC Invisible place holder LEDR RADIO UNIT FLASH UTILITY 9-PIN SERIAL CABLE COM1, 2, ETC.

(DTE) CONSOLE PORT

(DCE) INITIATE UPLOAD FROM HERE Figure 17. Direct connection through the LEDR CONSOLE Port Setup Connect a PC to the radios front panel CONSOLE Port using a 9-pin RS-232 cable. (See Figure 33 on Page 129 for cable wiring details.) The CONSOLE Port supports RS-232 at 9600 bps to 38.4 kbps. Download Procedure 1. Start the MDS MDS Flash Utility application. 2. From the View>Options menu, select the appropriate COM Port and baud rate. Ensure that autobaud is enabled (Look in the lower right-hand corner of the Flash Utility window). 3. From the View menu, select console. This will bring up a NMS win-

dow to the LEDR radio. At the LEDR> prompt, enter a login name and password and then close the session. 4. Using the File|Open dialog, select the directory where the new rm-

ware is located. In the le window, highlight the correct (.mpk) le and then press the green start arrow. 94 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C Verification and Reboot 1. To verify the correct operation of the new rmware, open the NMS again by pressing Alt + L. Enter boot to determine which image is currently active. This command will respond as follows:

boot: Image 1 is Active or, boot: Image 2 is Active 2. The new rmware is downloaded into the inactive image. Therefore, if the radio responded Image 1 is Active, enter image verify com-

mand, iverify 2, otherwise, enter iverify 1. The radio will respond indi-

cating whether or not the image has been veried as being a valid le, it will not determine if the contents are complementary to the other rmware image. If the image does not verify, try downloading the rmware again into the radio. NOTE: The following paragraph describes rebooting the radio. This action will disrupt the communications link. 3. Once the image has been veried, the radio must be rebooted using the new rmware. This is done by entering the command boot 1 or boot 2, where the 1 or 2 corresponds with the image number used with the iverify command above. 4. Once the radio has rebooted and Flash Utility screen displays the LEDR> prompt, the rmware can be downloaded or copied into the other image. Often, copying the rmware from one image to the other can be faster than performing a second download. To copy the rmware over to the other image, simply enter icopy. The radio will prompt you for conrmation (y/n) and then begin copying. 8.3 OPTION 2: Uploading Firmware Locally by Telnet via Ethernet This method can be used in the field or in a workshop by using a Win-

dows computer equipped with an Ethernet interface. Figure 17 shows the basic arrangement. NOTE: You must know the IP address of the LEDR Radio and the PC that you are going to connect together. (Both units must have the same Subnet, Netmask and Gateway addresses, or at least have routes to one another.) This is essential for a direct Ethernet connection. If you do not know your Windows computers IP address, you can use the RUN function from the Start menu and enter winipcfg to determine your local PCs IP address. The IP address of the radio can be found by the use of the radios ip command. MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 95 Invisible place holder LOCAL WINDOWS PC W/FIRMWARE FILES TFTP SERVER

& TELNET ETHERNET PORT CROSS-OVER CABLE IP ADDRESS: 192.168.X.B INITIATE UPLOAD FROM HERE LEDR> REPROGRAM NETWORK FILENAME.MPK 192.168.X.B

(CHECK STATUS: LEDR> REPROGRAM STATUS) ETHERNET PORT LEDR RADIO UNIT IP ADDRESS: 192.168.X.W Figure 18. Direct connection through the LEDR ETHERNET Port Setup 1. Connect the PCs Ethernet interface to the radios ETHERNET Port using a Category 5 Ethernet cross-over cable. 2. Copy the le LEDR rmware image le (ledr.mpk) into a known directory on your PC. For example, c:\windows\LEDR\Firmware V2.5\. This directory path will be used later by the TFTP server. Download Procedure 1. Launch the MDS TFTP Server on a PC connected to the LEDR radios ETHERNET Port through a cross-connect cable. 2. Point the TFTP server to the directory from which you desire to upload the new rmware. In the SNMP TFTP server, you should execute the set root command and point to the known directory where ledr.mpk has been copied. 3. Launch your Telnet application and login to the radio which you desire to load (reprogram) the rmware image le. 4. Determine the active (rmware) image from which you are currently executing by typing boot. The new rmware will downloaded into the inactive image. 5. Execute the command reprogram network ledr.mpk [IP address]. In the command, in place of [IP address], you should actually type the IP address of the TFTP server. For example, reprogram network ledr.mpk 192.168.1.2 96 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C 6. If desired, the status of the transfer during reprogramming may be displayed by typing reprogram status. 7. The TFTP Server and radio will notify you when the programming is complete. Verification and Reboot 1. To verify the integrity of the new rmware enter boot to determine which image is currently active. This command will respond as follows:

boot: Image 1 is Active or, boot: Image 2 is Active If the radio responded to the boot command with Image 1 is Active, enter the image verify command, iverify 2, otherwise, enter iverify 1. The radio will respond indicating whether or not the image has been veried as being a valid le, it will not determine if the contents are complementary to the other rmware image. If the image does not verify, try downloading the rmware again into the radio. NOTE: The following paragraph describes rebooting the radio. This action will disrupt the communications link. 2. Once the image has been veried, the radio must be rebooted using the new rmware. This is done by entering the command boot 1 or boot 2, where the 1 or 2 corresponds with the image number used with the iverify command above. 3. Once the radio has rebooted and Flash Utility screen displays the LEDR> prompt, the rmware can be downloaded or copied into the other image. Often, copying the rmware from one image to the other can be faster than performing a second download. To copy the rmware over to the other image, simply enter icopy. The radio will prompt you for conrmation (y/n) and then begin copying. 8.4 OPTION 3: Uploading Firmware from a Remote Server via Ethernet Setup Connect the LEDR radios ETHERNET connector to network which has a PC connected with the desired LEDR firmware on its hard drive. The network can be a local area network, a wide-area network or any IP network that can connect the two units. MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 97 The computer hosting the firmware image, must be running a TFTP server software. If not, install, launch and configure the MDS TFTP Server software found on the LEDR Utilities disk. The setup configura-

tion is shown in Figure 19. Invisible place holder REMOTE PC W/FIRMWARE FILES TFTP SERVER ETHERNET PORT IP ADDRESS: 192.168.X.B LOCAL WINDOWS PC TERM PROG. HUB/LAN/WAN/MAN TCP/IP ETHERNET PORT CONSOLE PORT

(DCE) 9-PIN SERIAL CABLE COM1, 2, ETC.

(DTE) LEDR RADIO UNIT IP ADDRESS: 192.168.X.W INITIATE UPLOAD FROM HERE LEDR> REPROGRAM NETWORK FILENAME.MPK 192.168.X.B

(CHECK STATUS: LEDR> REPROGRAM STATUS) Figure 19. Uploading firmware from a remote server via Ethernet Download Procedure 1. Start a terminal program, such as HyperTerminal, on the local PC. 2. Log into the LEDR radio using the login command. 3. Use the ip command to ensure that the radio has a valid IP address. 4. Use the ping command from the local PC to ensure that the PC and the radio have valid routes to pass information between them. 5. At the radios LEDR> prompt, start the download by entering repro-

gram network [filename] [source PCs IP Address]. The download can be monitored from the radio by entering reprogram status. When the download is complete the radio will sound two short beeps and the response from reprogram status will indicate that the download has nished. 98 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C SNMP Option The TFTP download process can also be initiated using an SNMP man-

ager. The Firmware|FwProgTable object provides a means for specifying the TFTP server IP address and the filename for the firmware. Verification and Reboot When the download is complete, verify the firmware image and reboot the radio as described under Verification and Reboot in Paragraph See Verification and Reboot on Page 95 for the procedure. 9.0 USING ORDERWIRE 9.1 Introduction A handset may be plugged into the front panel of the LEDR radio to allow voice communications between radio sites (see Figure 20). This can be especially useful during setup and service of the radio equipment. All radios on the network can hear what is said by any individual speaking into a handset. No other radio may transmit on the orderwire until the current speaker is finished. Depending on the number of hops, the link data rates, and Interleave setting, there may be a noticeable latency from one end of the network to the other. The front panel alert function (See Unit ID on Page 34) and alert com-

mand (Page 51) can be used to signal all units in the network or a spe-

cific radio. Normal payload data is not affected by Orderwire use. The Orderwire uses voice-compression technology that introduces a slight, but notice-

able, delay in Orderwire audio. The orderwire will not interrupt the normal data flow through the LEDR data communication channel, however, it will reduce the throughput efficiency of any data communications on the Service Channel during periods of voice transmission. A handset is available from MDS (P/N 12-1307A01), which has a push-to-talk button and provides basic communication services but does not contain a built-in DTMF (tone) keypad. (The Orderwire supports the transmission of DTMF-type signaling by detecting tones at the source, and regenerating them at the receiving end, however, there are no DTMF supported radio functions in the LEDR radios.) 9.2 Setup Program the vox and volume setting for each radio. The volume setting is user preference. The vox setting requires some forethought. The higher the vox setting, the louder the user must speak to get the voice decoder to recognize the speech. This will, however, prevent noise from entering MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 99 the line. A low vox level will recognize speech better but may transmit more noise with the speech. The user should experiment with the vox setting to determine the best level for the speaker and the noise environ-

ment. 9.3 Operation 1. Plug the handset into the front panel jack labeled

. (Figure 32 on Page 129 provides pinout details for this connector.) 2. Press or the LCD display. Press at the menus top level until Orderwire appears on to move to the lower levels of the menu. ENTER 3. To call a specic radio station, enter the Unit ID number for the sta-

tion to be called. (At this point, an alert signal (ring) will be sent to earpiece of the handset connected to the called station. 4. Press the PTT on handset to speak to the other station(s) listening to their handsets connected to LEDR equipment on the network. Release the handset PTT to listen. VOX (voice-activated transmit) operation is also supported. (See vox on Page 88.) 5. Alternatively, a DTMF-style handset can be used to dial the required radio station. 6. Remember, regardless of the number of users, only one may speak at a time. NOTE: The LEDR radio has a built-in DTMF decoder in the orderwire circuitry. If a standard DTMF telephone test set is plugged into the orderwire, the user can dial in the three digit unit address on the handset to ring the earpiece of the handset of the asso-

ciated LEDR unit.The LEDR chassis will not provide power to ring a standard bell or electronic ringer. 100 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C Invisible place holder Figure 20. Orderwire Connection 9.4 Related NMS Commands The orderwire can be configured by the NMS commands or through the front panel. The earpiece volume is more easily set by the front panel controls as the level is dependent on personal preference. vox Voice level (relative) at which speech will be detected by the soft-

ware (See vox on Page 88) volume Sets/displays the handset volume (See volume on Page 88) alert Sends an orderwire alert to a specific radio or to all the radios on the network (See alert on Page 51) 10.0 USING THE SERVICE CHANNEL 10.1 Concept The Service Channel sends and receives ASCII-based information at 9600 bps in a half-duplex broadcast mode throughout the network. This means that any data coming through the Service Channel Port of a radio will be broadcast to the Service Channel of each radio in the network. There can be only one radio transmitting Service Channel data over the network at a time and the data will always be sent to every radio on the network. No other radio will be allowed to transmit until the current sender is finished. MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 101 If a radio does receive data in the Service Channel Port while another radio is the active-sender, the data coming in the port will be queued and sent when the active sender is finished. Depending on the number of hops, link data rate, and Interleave setting, there may be a noticeable latency from one end of the network to the other. 10.2 Setup The user can configure all the Service Channel parameters for a specific radio. The port may be enabled or disabled. In the disabled state (svch port off), any data that comes in the Service Channel port will be dis-

carded and any Service Channel data that comes into the radio from another radio in the network will be passed along to the rest of the net-

work but not sent out the Service Channel Port. When the Service Channel Port (svch port on) is enabled, it will behave based on the other settings. The most important setting is the echo parameter. Echo is used with a terminal emulator on a PC and the program does not display on the screen character keyed in by the user. When you set up a system, you must be careful to avoid an infinite loop. If echo is enabled, then every character that enters the Service Channel port will be echoed back out the port. When echo is disabled then data that comes in the Service Channel port is not sent back out the port. Trouble may arise if the device that is connected to the Service Channel also echoes the data it sends. In that case, the device will send characters into the Service Channel Port, the radio will echo the characters back to the device, the device will consider the echoed data to be input which it will in turn echo back to the radio, etcetera, until an overflow condition occurs. You must also set the communication parameters (baud rate, stop bits, char length, and parity) via the svch subcommands so that the settings match those at the device connected to the Service Channel Port. Lastly, the user can re-initialize the Service Channel port via the svch reset command. This may be helpful in the case where an infinite loop overflow condition has locked the port. 10.3 Usage The Service Channel supports ASCII data transfer over the network in broadcast fashion. As a result, devices connected to the Service Channel Ports of different radios will appear to have a transparent half-duplex connection between them. 102 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C 10.4 NMS Commands This command is used to set/display Service Channel parameters. Usage: svch [subcommand] [<argument>]

Subcommands:

baud char echo off off on parity reset stop onEnable the Service Channel offDisable the Service Channel resetRe-initialize the Service Channel echoon/off baud300, 600, 1200, 2400, 4800 and 9600 char 5, 6, 7, 8 (ASCII character length in bits) paritynone, even, odd stop1, 2 (Stop bits) 11.0 PROTECTED CONFIGURATION 11.1 Introduction The LEDR radio can be supplied in a protected (also called redundant or 1+1) configuration (Figure 21). The protected version is designed to perform automatic switchover to a second radio in the event of a failure in the primary unit. Protected operation is important for many mission-critical or revenue producing links. By configuring two identical LEDR radios in parallel and including a third switch box containing the RF switching circuits and the customer interfaces, it is possible to protect against failure in any of the LEDR radio sub-systems. Failures can be either malfunction or external environmental effects, such as multipath fading or nearby light-

ning strikes. A Protected station consists of two standard LEDR Series radios and a Protected Switch Chassis (center unit in Figure 21). Ordinarily, the three chassis are mounted together in a stacked arrangement, one above the other, as shown in the figure. MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 103 The top unit is referred to as the systems Unit A, and the lower one as Unit B. Each unit is considered to be the sibling of the other. The sibling of Unit A is Unit B, and the sibling of Unit B is Unit A. This dis-

tinction is used in the rdnt command found on Page 74 under the sub-

heading Read & Write Commands. Invisible place holder U N I T A C S N I T B P U Figure 21. LEDR Radio Protected Version The front panel of the Protected Switch Chassis (PSC) front panel has only two LEDs and an RJ-45 jack for an orderwire handset. The LEDs indicate by light and an arrow outline which LEDR chassis is active. It is assumed the two LEDR chassis will be mounted above and below the PSC as shown in Figure 21. 11.2 Protected Operation During normal operation, one radio path is selected and the RF and interface switches are set to service that path. (The illuminated POWER LED indicator on the front panel of the Protected Switch Chassis (PSC) points to the currently active unit.) A switch in the transmitter circuitry allows one transmitter to be connected to the common ANTENNA port on the Protected Switch Chassis. On the receive path, a splitter in the Pro-

tected Switch Chassis allows both radio receivers to receive the incoming RF signal for processing. The Protected Switch Chassis is a gateway for data coming and going between each of the LEDR radio units and the common data circuits connected to the PSC. The PSC monitors various RF and data signal paths for predefined fault-determining parameters. If signal conditions are not normal, the PSCs microprocessor controller will issue an alarm and move the standby LEDR radio to the active mode. 104 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C Fault-determining parameters can be programmed from the Network Management System (NMS) software. Examples of these parameters are:

Low transmitter power High transmitter temperature Synthesizers is out-of-lock Problem with the option board or framers CPU failure wherein the CPU watchdog causes a reset Fan fault Transmitter Failure Any failure on the active transmitter path will create a fault condition which will place the currently the active transmitter on standby and switch the standby transmitter to active. The newly active transmit path will remain in use until a manual changeover returns the configu-

ration to the original transmitter path. This allows the link to remain fully operational until the user has replaced the faulty transmitter cir-

cuitry. Receiver Failure Both receivers are fed via an RF splitter from the antenna port. Each RF path is buffered and monitored for receive signal integrity for uncorrect-

able bit-errors. If the active receive circuitry fails, uncorrectable bit-errors will be detected. The modem receive switch will first deter-

mine that the standby receive path is operational (no uncorrectable bit errors) and will switch accordingly. 11.3 Configuration Options The protected LEDR radio is available with a number of configuration options, each designed to optimize particular system solutions:

1+1 OperationWarm or Hot Standby In a warm standby link, the standby transmitter is powered down. In a hot standby link, the standby transmitter is powered up and transmitted in a dummy load. The warm standby option offers the advantages of sig-

nificantly reduced power consumption, since only one transmitter path is powered. However, upon transmitter failure, the switchover takes longer due to the transmitter having to be powered. Thus the hot standby mode offers the advantages of faster switchover time and increased overall system availability. MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 105 Symmetrical or Asymmetrical Receiver Splitters The default protected radio is configured with a 3 dB splitter on the receive path, meaning that each radios receiver signal level is equal, but typically 4dB worse than an unprotected radio (3 dB due to splitter, plus dB cabling and additional connectors). As an option, an asymmetrical splitter (1 dB / 10 dB) is offered. Using this option, the active path is 2 dB stronger than with a symmetrical splitter (1 dB compared to 3 dB splitter loss), allowing for a better fade margin and increased system availability during normal operation. However, upon receiver change over, the receive signal strength will be significantly reduced due to the 10 dB of splitter loss rather than the equal splitters 3 dB loss, making the link more sensitive to fading in this temporary switched state. Providing the failed standby receiver is replaced within a short period of time, many users find that the asym-

metric splitters increased normal performance offsets any deterioration in the temporary switched state. 11.4 PSC Rear Panel Connectors The following are descriptions of the rear panel connections of the Pro-

tected Switch Chassis. The PSCs rear chassis is shown in Figure 22. Figure 21 presents an inter-unit cabling diagram for protected configu-

rations. Invisible place holder RF CONNECTORS PROTECTED DATA E1 DATA 530 (A&B) ETHERNET EIA-530-A SERVICE CHANNEL RxA RxB Antenna TxA TxB Protected 4 E1 3 Ethernet 530 (A&B) EIA-530-A Service Channel 2 1 A B Figure 22. Protected Switch ChassisRear Panel RxA The RXA (ReceiveRadio A) connector is a N-type coaxial connector. It connects to the RX port on the rear panel of Radio A via a short coaxial cable. RxB Same as RXA, but for Radio B. Antenna The ANTENNA connector is a N-type coaxial connector. It serves as the connection point for the station antenna. 106 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C TxA The TXA (transmit, radio A) connector is a N-type coaxial connector. It connects to the TX port on the rear panel of Radio A via a short coaxial cable. TxB Same as TXA, but for Radio B. Protected (Data) This pair of connectors accepts G.703 signals from each of the LEDR radios. The top connector is for Radio A, and the bottom connector is for Radio B. For pinout information, see Figure 36 on Page 130. E1 This is a block of four RJ-45 modular connectors for connection to a multiplexer or other customer-supplied E1 equipment. For detailed pin information, Figure 34 on Page 130. These connectors are not operational on S Series (Subrate) radios. Ethernet The ETHERNET connector provides access to the embedded SNMP agent and other elements of the TCP/IP network management system. The connector is a standard 10 Base-T connection with an RJ-45 mod-

ular connector. For detailed pin information, see Figure 34 on Page 130. 530 (A&B) This pair of DB-25 connectors accepts EIA-530 data signals from each of the LEDR radios. The top connector is for Radio A, and the bottom connector is for Radio B. For pinout information, see Figure 36 on Page 130. EIA-530-A This DB-25 connector provides a connection point for customer-sup-

plied EIA-530 data equipment. Note: This port is not operational in full-

rate models. Service Channel In a protected configuration, this DB-9 connector becomes the Service Channel connection for both LEDR radios. (In the protected radio con-

figuration, the Service Channel connectors on the radios are non-func-

tional.) For detailed pin information, see Service ChannelRear Panel on Page 131. MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 107 11.5 Inter-Unit Cabling for Protected Stations The required cabling between the two radios and the Protected Switch Chassis is dependent on the data interface, unit type (subrate versus full-rate), and transmit and receive antenna configuration. The cabling for a pair of standard radios with internal duplexers is shown in Figure 23. DO NOT USE IN PROTECTED CONFIG. RADIO A G.703/Expansion Data Ethernet NMS EIA-530-A Service Channel Alarm I/O DC Power Input CABLE 1A P/N 03-3837A01 Data Interface CABLE 2A P/N 03-3828A01

(SUBRATE MODELS) TO MUX OR OTHER E1 EQUIPMENT 2 1 TO EIA-530 DATA EQUIPMENT

(SUBRATE MODELS) PROTECTED SWITCH COAXIAL CABLES (4) P/N 19-1323A02 RX TX External TO STATION ANTENNA RxA RxB Antenna TxA TxB Protected 4 E1 3 Ethernet 530 (A&B) EIA-530-A Service Channel CABLE 1B P/N 03-3837A01 TO ETHERNET HUB CABLE 2B P/N 03-3828A01

(SUBRATE MODELS) SERVICE CHANNEL

(SERVES BOTH RADIOS) RADIO B G.703/Expansion Data Ethernet NMS EIA-530-A Service Channel Alarm I/O DC Power Input RX TX External Data Interface DO NOT USE IN PROTECTED CONFIG. Figure 23. Inter-unit CablingProtected Version with Internal Duplexers 11.6 Configuration Commands for a Protected System NOTE: In a protected link configuration, ensure that the E1/T1 inter-

face settings are identical for both radios at a each end of the link. Once the inner-chassis cabling is in place and the units are powered up, several parameters are required to place the LEDR radio into proper operation as a member of a protected system. The tasks involved are reviewing and setting up of the following param-

eters:

108 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C Radio Operation General Redundant Specific Data Interface SubrateFractional-T1 FullrateE1/T1 Redundant Specific Parameters There are several parameters that must be set to enable proper operation of a protected station. These are all covered under the rdnt command found on Page 74. Sample Redundant Configuration Session The following is a example of a session used to configure a LEDR radio to serve in a protected system. This sequence will need to be repeated for each radio in the protected pair. 1. Congure the protected mode to hot-standby:

LEDR> rdnt mode 1 rdnt {mode}: 1+1 Hot Standby LEDR>

2. Congure the IP address of each radio:

LEDR> ip address 192.168.1.1 ip {netmask}: (255.255.0.0) ip {gateway}: (0.0.0.0) ip {port}: (ETH) ip {address}: 192.168.1.1 ip {netmask}: 255.255.0.0 ip {gateway}: 0.0.0.0 ip {port}: ETH ip: A reboot is strongly recommended. Do you wish to reboot? (y/n) >y LEDR>

3. Congure the sibling IP address of each radio:

LEDR> rdnt ip 192.168.1.2 redundant {ip}: 192.168.1.2 LEDR>

4. Congure the hitless switching. (Note that the default is on.):

LEDR> rdnt hitless on rdnt {hitless}: on LEDR>

5. Congure the temperature (C) threshold:

LEDR> rdnt temp 100 rdnt {temp}: 100 LEDR>

MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 109 Transmit Clock Selection (Subrate Models Only) The transmit clock selection must be addressed for every radio in a sub-

rate radio system installation. The single most important consideration is that there be only one master clock in a subrate radio network. The master clock can originate from the radio or from the Customer Pre-

mises Equipment (CPE). The radio is capable of several different clocking modes. Refer to Figure 24 on Page 111 for typical system clocking methods. Refer to the Clock Mode screen description on Page 35 for setting the radio transmit clocking from the front panel. Refer to the clkmode description on Page 56 for setting the radio transmit clocking mode from the CONSOLE Port. NOTE: When customer premises equipment (CPE) is operated in looped clock mode, it is recommended that the radio not be set to line clock mode. To do so may cause the transmitting radios PLL to be pulled out-of-lock, especially when oper-

ating at 4E1 data rates. 110 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C Invisible place holder SITE A Scenario 1:

LEDR Radio Clock Source: Line 1, 2, 3, 4 Scenario 2:

LEDR Radio Clock Source: Internal SITE B REPEATER SITE CPE Scenario 1:

Network or Internal Clock Scenario 2:

Looped Clock Mode REPEATER NULL-MODEM DATA INTERCONNECT CABLE ETHERNET CROSS-CABLE LEDR Radio Clock Source: Remote LEDR Radio Clock Source: Line 1, 2, 3, 4 LEDR Radio Clock Source: Remote SITE C CPE Looped Clock Mode Figure 24. Typical Repeater Clocking Arrangement

(no multiplexer at repeater site) MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 111 12.0 SPACE DIVERSITY OPERATION 12.1 Introduction Space diversity operation is an effective mechanism of increasing a radio links resilience to transmission impairments such as multipath fading or frequency selective fading. In difficult transmission environ-

ments such as over highly reflective and moving water paths, or in arid environments where atmospheric ducting occurs, space diversity is the most effective way of maintaining a continuous radio link. In a space diversity link, two radio receivers are operated in parallel, from two separate antennas mounted several wavelengths apart verti-

cally on the antenna tower. The separation of antennas is such that when one antenna experiences fading due to multi-path interference, the other antenna, being several wavelengths away, is not likely to experience the same fade. Thus, one receive path may experience uncorrectable errors, while the other path will be error free. Similar to the protected operation, the receive modem switch will determine which buffered data path is operating with the highest integrity, and select that path without inducing any additional bit errors into the link. Space diversity is especially effective in changeable multi-path environ-

ments such as over tidal water paths. Since water is highly reflective, there will be continual constructive and destructive interference at each single antenna over the course of the day as the water rises and falls and the reflected water path interferes with the line-of-sight path. By correct vertical positioning of the antennas, these effects can be negated, allowing one antenna to see a good signal while the other is experi-

encing fading, and the modem switching accordingly to allow the link to operate error- free. The space diversity LEDR radio is available only in a hot standby con-

figuration. 12.2 User Interface & Control Protected operation is configured using the Redundant screen (Page 41) on either radio front panel, or with the rdnt command from a NMS ter-

minal (see Page 74). 12.3 Transmit Clock Selection There is no difference between a space diversity system and redundant radio arrangements with respect to transmit clock selection. Fullrate radios require no user intervention for clocking. Users of subrate sys-

tems should set the radio clocks as described for subrate systems. See Transmit Clock Selection on Page 112 for further information. 112 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C 12.4 Inter-Unit Cabling for Space Diversity Stations The RF cabling for space diversity stations depends on the location of the duplexers. The block diagram in Figure 25 shows the RF connec-

tions in a typical system with two external duplexers. Invisible place holder LEDR UNIT A TX RX LEDR UNIT B RX TX RX TX RX ANT DUPLEXER A ANT DUPLEXER B Figure 25. Block Diagram of a Space Diversity Station with External Duplexers The inter-unit cabling for a space diversity system with external duplexers is shown in Figure 26. TO RX PORT OF DUPLEXER A RX TX External COAXIAL CABLES (2) P/N 19-1323A02 TO ANTENNA SYSTEM DO NOT USE IN PROTECTED CONFIG. RADIO A G.703/Expansion Data Ethernet NMS EIA-530-A Service Channel Alarm I/O DC Power Input CABLE 1A P/N 03-3837A01 Data Interface CABLE 2A P/N 03-3828A01

(SUBRATE MODELS) TO MUX OR OTHER E1 EQUIPMENT 2 1 TO EIA-530 DATA EQUIPMENT

(SUBRATE MODELS) PROTECTED SWITCH RxA RxB Antenna TxA TxB Protected 4 E1 3 Ethernet 530 (A&B) EIA-530-A Service Channel TO TX PORT OF DUPLEXER A CABLE 1B P/N 03-3837A01 TO ETHERNET HUB CABLE 2B P/N 03-3828A01

(SUBRATE MODELS) SERVICE CHANNEL

(SERVES BOTH RADIOS) RADIO B G.703/Expansion Data Ethernet NMS EIA-530-A Service Channel Alarm I/O DC Power Input RX TX External TO RX PORT OF DUPLEXER B Data Interface DO NOT USE IN PROTECTED CONFIG. Figure 26. Inter-unit CablingSpace Diversity with External Duplexers MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 113 The inter-unit cabling for a space diversity system with internal duplexers is shown in Figure 27. DO NOT USE IN PROTECTED CONFIG. RADIO A G.703/Expansion Data Ethernet NMS EIA-530-A Service Channel Alarm I/O DC Power Input RX TX External COAXIAL CABLES (4) P/N 19-1323A02 CABLE 1A P/N 03-3837A01 Data Interface CABLE 2A P/N 03-3828A01

(SUBRATE MODELS) TO MUX OR OTHER E1 EQUIPMENT 2 1 TO EIA-530 DATA EQUIPMENT

(SUBRATE MODELS) PROTECTED SWITCH RxA RxB Antenna TxA TxB Protected 4 E1 3 Ethernet 530 (A&B) EIA-530-A Service Channel TO TX/RX ANTENNA SYSTEM A CABLE 1B P/N 03-3837A01 TO ETHERNET HUB CABLE 2B P/N 03-3828A01

(SUBRATE MODELS) SERVICE CHANNEL

(SERVES BOTH RADIOS) RADIO B G.703/Expansion Data Ethernet NMS EIA-530-A Service Channel Alarm I/O DC Power Input RX TX External TO RX ANTENNA SYSTEM Data Interface DO NOT USE IN PROTECTED CONFIG. Figure 27. Inter-unit CablingSpace Diversity with Internal Duplexers 114 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C 13.0 SPARE PARTS, UNITS AND ACCESSORIES 13.1 Spares Spare assemblies and units used for repair of LEDR radios are listed in Table 28. Field servicing, or replacement of PC boards and assemblies, should only be performed by qualified service personnel. When ordering parts from the factory, always give the complete model number of the radio as found on the serial number label on the chassis. Contact information can be found on Page 140 of this guide. Table 28. Field Replaceable Units for LEDR Radios Item Model Transceivers SRAM Power Back-up Battery All Models Protected Switch Chassis (Complete unit) LEDR 400F Duplexer (If equipped) FT1 Data Interface PCB E1/FE1 Data Interface PCB Subrate Data Interface PCB Fullrate Data Interface PCB LEDR 900F LEDR 1400F All Models LEDR 900S LEDR 400F LEDR 400S LEDR 900F LEDR 900S LEDR 1400F LEDR 1400S LEDR PSC LEDR PSC Part Number 27-3109A01 03-3873A01 03-3873A02 03-3873A03 Frequency dependent;

Contact factory. 03-3846A01 03-3846A02 03-2824A01 03-3539A01 MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 115 13.2 Accessories Table 28 lists accessories available from the factory as a convenience to our customers. Factory contact information can be found on Page 140 of this guide. Table 29. Accessory Items for LEDR Radios Item Description V.35 Interface Cable G.703 Balun 6 ft (1.8 m) cable adapter used to convert subrate LEDR radio EIA-530 data interface to V.35 male data interface. Miniature G.703 balun used to convert a fullrate LEDR radios 120 balanced data interface to two 75 BNC coaxial data interfaces. One balun required per E1 port. EIA-530 Null-MODEM Crossover Cable 6 ft (1.8 m) cable adapter to connect subrate interfaces in a repeater configuration. SNMPc Network Management Manager SNMPc Network Management Manager Orderwire Handset Orderwire Handset Kit AC Power Adapter SNMP Management Software to access the LEDR embedded SNMP agent, allowing management of the LEDR radio network and any interconnected SNMP enabled peripherals. For Windows 95 O/S SNMP Management Software to access the LEDR embedded SNMP agent, allowing management of the LEDR radio network and any interconnected SNMP enabled peripherals. For Windows 98 or NT O/S. Voice handset with 4-wire cord (RJ-11 modular plug). Voice handset with 4-wire cord (RJ-11 modular plug), hanger and mounting bracket. External AC power supply provides 24 Vdc to LEDR radio. Input: 110 Vac to 240 Vac, 50 to 60 Hz Part Number 03-2174A01 01-3494A01 97-2841L06 03-3530A01 03-3530A02 12-1307A03 02-1207A01 03-3862A01 116 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C 14.0 FRACTIONAL-T1 INTERFACE CARD 03-3846A01 FRACTIONAL-E1 INTERFACE CARD 03-3846A02 14.1 Introduction The Fractional-T1 (FT1) and Fractional-E1 (FE1) Interface cards are optional assemblies which provide additional connectivity within a LEDR network for all subrate (S) models. The installation of the FT1/FE1 Interface card inside the radio allows the standard EIA-530 customer data interface to be bypassed and the radio data lines to be con-

nected directly to a G.703 T1 or E1 interface. With the optional FT1/FE1 Interface, users are able to place a LEDR link from a network service access point to a remote site, where an installation supports multiple communications devices. Direct interface to customer equipment, such as channel banks, is possible without the use of expensive protocol converters. 14.2 Fractional-T1/E1 Performance The FT1 and FE1 Interface allows the LEDR radio to be connected directly with a G.703 T1 or E1 interface. The line rate of the interface operates at the T1 rate of 1.544 Mbps, or E1 rate of 2.048 Mbps. Twelve user selectable DS0 timeslots are transmitted over the air in either case. The FT1 interface is G.703 at 100 line impedance. The FE1 interface is G.703 at 120 line impedance. Physical connection is via an RJ-45 jack on the rear panel. 14.3 Configurable Parameters The following performance specifications of the T1 fractional interface are adjustable by the user. All of these parameters are manageable locally, or over the air via SNMP network management. (Refer to the SNMP Handbook, P/N 05-3532A01 for more information.) Timeslots and Framing Twelve DS0 timeslots are permitted. In FT1, the timeslot selection is arbitrary. In FE1, timeslot 0 is always sent and the remaining timeslots are arbitrary with the exception of timeslot 16. (Timeslot 16 must be sent when any CAS frame structures are selected.) The selection of timeslots can be different at each end of the link, provided their number is equal. The timeslots may not be reordered. MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 117 Alarm signals RAI and AIS are generated as appropriate. The user may optionally have these signals forwarded over the RF link. The frame formats available for Fractional-T1 operation are as follows:

FT only ESF without CRC checking and generation SF (D4) SF with JYEL indication ESF with CRC checking and generation The frame formats available for Fractional-E1 operation are as follows:

FAS only FAS with BSLIP FAS with CRC FAS with CRC and BSLIP FAS and CAS FAS with CAS and BSLIP FAS with CAS and CRC FAS with CAS CRC and BSLIP. The re-framing criteria may be adjusted to the following settings: 2 out of 4 Fbit errors, 2 out of 5 Fbit errors, 2 out of 6 Fbit errors. For FE1, the reframing criteria is selectable between consecutive FAS errors or CRC errors. Line Codes The following standard T1 line codes are supported: B8ZS, AMI, and per-channel B7ZS. The following standard E1 line codes are supported: HDB3 and AMI. Diagnostics The T1 line at each end of the link may be tested using a variety of bit patterns. In normal operation, statistics are stored for any errors occur-

ring at the line interface, such as framing errors, bipolar violations, and CRC errors. Data may be looped back at the local port, through the T1 option only, and at the remote unit. Further, the unit will respond to in-band (SF) and data link (ESF) loopback codes at the local port. When in ESF framing mode, the option can automatically generate per-

formance report messages. 118 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C The following alarms may be monitored & logged. They may also be associated with a user-selectable indication (alarm contact or front panel LED): Remote Loopback, Lost Frame, Lost Signal, Lost Analog Signal, AIS, RAI (RYEL), MultiFrame RAI, Severely Errored Frame, Frame Re-Align, MultiFrame AIS, Far End Block Error, Line Code Error, CRC Errors and Frame Bit Error. Clocking The clock source is configurable for network, loopback, and internal timing, with secondary selections available should the primary source become faulty. Refer to the discussion of the clkmode command

(Page 54) for more information 14.4 Field Installation of the FT1 Interface Board An S Series LEDR radio can be fitted with a Fractional-T1 (FT1) or Fractional-E1 (FE1)Interface Board (Figure 28). The addition of an FT1/FE1 board enables the radio to operate with a G.703 interface at speeds up to 768 kbps. To add the FT1/FE1 Interface Board to an existing LEDR radio trans-

ceiver, follow these steps:

1. Remove the top cover of the radio (4 Phillips screws). 2. Identify the installation area for the Interface Board (See Figure 29). Remove the three Phillips screws on the main PC board which cor-

respond to the mounting holes on the Interface Board. 3. Install the threaded standoff spacers (furnished with the option board) onto the main PC board in the holes formerly occupied by the screws. (Note: Washers must not be used between the standoff spac-

ers and either of the PC boards.) 4. Locate connectors J912 and J913 (See Figure 29). These connectors mate with the plugs on the bottom of the Interface board. 5. Carefully set the optional board into place, making sure to align the mounting holes with the threaded standoffs on the main PCB. (The Interface Boards rear panel connector should align with the rectan-

gular cutout at the radios rear panel, and the rear edge of the option board should be parallel to the main PC board.) 6. Look under the right edge of the Interface board to ensure that J912 is aligned with the mating connector on the option board. With the board properly aligned, push down rmly in the area directly above J913 and then over J912 at the edge. A distinct locking action will be felt as the connectors engage. MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 119 7. Install the Phillips mounting screws with lockwashers on the top of the FT1 board. For protected versions only: Install the plastic clip, if supplied, at the right rear corner of the Interface board. It slips over the edge of the main PC board and the option board. Gently tighten the hex screw to secure the clamp.) The Interface board must be properly seated onto the LEDR radios motherboard before powering up the radio chassis. Failure to properly install the board could result in permanent damage to the motherboard and the optional PCB. 8. Re-install the radios top cover. This completes the Interface Board installation. Invisible place holder CAUTION POSSIBLE EQUIPMENT DAMAGE Mates with J913 on Radio PC Board User Interface Ports Mates with J912 on Radio PC Board Figure 28. FT1/FE1 Interface BoardOptional Assembly

(Part No. 03-3846Axx) 120 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C Invisible place holder REAR PANEL OF LEDR RADIO Installation Area for Interface Board PC Board Clamp

(Some Versions) J913 J912 Figure 29. View of Radio PC Board Showing Installation Details for FT1/FE1 Interface Board MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 121 15.0 INCREASE BANDWIDTH BY CHANGING TRANSMITTER AND RECEIVER FILTERS 15.1 Introduction It is possible for qualified service personnel to upgrade LEDR Series radios in the field to increase the radios RF bandwidth. Listed in Table 30 are five upgrade kits. Each kit consists of three RF filters; one is used in the transmitter section and two are used in the receiver section. In addition, there is a unique software key that will allow the data circuitry to handle the higher data bandwidth. This key is based on the radios serial number and can only be used with that radio. Each kit consists of a set of 3 filters (transmitter 1; receiver 2), software activation key and instructions for converting radios occupied band-

width. The radio serial number must be provided to the factory for issue of authorization key. Table 30. Hardware Upgrade Kits for Increased RF Bandwidth For Subrate Radios For Fullrate Radio 500 kHz to 1.0 MHz 500 kHz to 2.0 MHz 1.0 MHz to 2.0 MHz 25 kHz to 50 kHz 25 kHz to 100 kHz 25 kHz to 200 kHz 50 kHz to 100 kHz 50 kHz to 200 kHz 100 kHz to 200 kHz To realize the full benefit of the increased RF bandwidth, it may be nec-

essary to upgrade the radios data interface. Table 1 on Page 1 provides a simplified listing of radio bandwidth and compatible data interfaces. 15.2 Filter Removal and Replacement These instructions describe the removal and replacement of filter mod-

ules inside a LEDR Transceiver, as well as the software commands nec-

essary to authorize the new bandwidth. CAUTION: This upgrade involves the removal of small, delicate parts. It must be performed by experienced personnel only, using proper tools and equipment to preserve the factory warranty. Precautions must be taken to prevent damage to components due to static discharge and other risks. 1. Remove the radio from service and disconnect all cabling from the rear panel. 122 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C 2. Remove the top cover of the radio (four Phillips head screws). 3. Remove the Transmitter and Receiver sections RF shields

(Figure 30). It will be necessary to unplug the ribbon cables that cross over the shieldsrecord their locations as you remove them. 4. Locate and remove Filter FL700 from the transmitter section. In its place, install the replacement lter furnished with the upgrade kit. Ensure that the new lter is installed in the same orientation as the original unit. Invisible place holder LEDR RADIO PC BOARD FL700 FL601 FL600 Transmitter Section Receiver Section Figure 30. Location of Bandwidth Filters FL600, FL601 and FL700 5. Locate and remove Filters FL600 and FL601 from the Receiver module. In their place, install the replacement lters furnished with the upgrade kit. Ensure that the new lters are installed in the same orientation as the original units. 6. This completes the required hardware changes. Fasten the top cover and re-connect all cables to the rear panel. 7. Power up the radio and proceed to Software Commands below. MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 123 15.3 Software Commands To activate the new filter bandwidth, it is necessary to enter an authori-

zation key provided by Microwave Data Systems. This key is based upon the radio serial number and will authorize the new bandwidth of the radio. Contact the factory if you do not already have an authorization number. 1. Initiate a NMS terminal session with the LEDR radio. (Refer to Page 25 for login details.) 2. At the LEDR> prompt, type: auth add <authorization number>, where

<authorization number> is the number provided to you by the factory. Press ENTER. 3. This completes the required software changes. If desired, the auth show command may be entered to display all of the current options for the LEDR radio. 4. Check for alarms on the front panel LED display. If no alarms are present, the basic functionality of the radio can be conrmed. If an alarm is present, double check all cable connections and radio set-

tings. 16.0 BENCH TESTING OF RADIOS In some cases, it may be necessary to test the operation of the equipment in a bench setting. Figure 31 shows a simple arrangement for bench testing using RF attenuators between the two units under test. For weak signal tests (weaker than 80 dBm), additional physical sepa-

ration between Radio 1 and Radio 2 may be required to prevent uninten-

tional coupling between the radios. On protected radio configurations, a weak received signal will cause the radio transceivers to switch. ANT Connector LOW LOSS COAXIAL LINES ANT Connector RADIO

#1 DATA PORT DIGITAL EQUIPMENT OR BER TESTER POWER ATTENUATOR 30 dB 1W Rating POWER ATTENUATOR 30 dB 1W Rating SWITCHED OR VARIABLE ATTENUATOR 0110 dB (1 dB Steps) JFW 50DR-001 or Equivalent Required only for receiver sensitivity test. TOTAL ATTENUATION Fixed: 80 dB Minimum for Basic Checks Adjustable: For Sensitivity Tests (100140 dB Required) Figure 31. Back-to-Back Link Test RADIO

#2 DATA PORT DIGITAL EQUIPMENT OR BER TESTER 124 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C You can perform an over-the-air BER test on the bench or in the field. In this case, attach a separate piece of BER test equipment and feed it into one or more of the T1/E1 ports. At the other end of the link, you use another BER test box, or attach a loopback plug to the CPE data I/O port. This tests the quality of the radio link itself with regard to the user payload data. Such a bench, or over-the-air, test does not use the LEDR bert command. NOTE: It is important to avoid over-driving the receiver as it can be damaged by strong signals. Signals stronger than -20 dBm should be avoided to protect the receiver. NOTE: User BERT test equipment connected to a LEDR T1 data interface my yield different BERT results than the radios ber command. This is likely when less than the channel's capacity is utilized by the timeslot command configuration. 17.0 TECHNICAL REFERENCE 17.1 Specifications Models: LEDR 400S, LEDR 900S & LEDR 1400S General Frequency Ranges:

330512 MHz (LEDR 400S) 800960 MHz (LEDR 900S) 13501535 MHz (LEDR 1400S) RF Occupied Bandwidth:

25, 50, 100 and 200 kHz User Data Rates:

64, 128, 256, 384, 512 & 768 kbps Permitted Data Throughput:

With optional FT1 Interface Board:

n x 64 kbps (Where n = 12) Channel Size 25 kHz 50 kHz 100 kHz 200 kHz Data Rate 64 kbps 64 kbps to 128 kbps 64 kbps to 256 kbps 64 kbps to 768 kbps Modulation Type:

32 QAM, 16 QAM, QPSK Forward Error Correction (FEC): Reed-Solomon Acquisition Time Typical:

From power up, 10 seconds Voltage Range:

Power Consumption:

Temperature Range:

Humidity:

Size:

24 Vdc or 48 Vdc (20%) Less than 60 watts (non-protected configuration) 5 to 50 C 90% non-condensing @ 40 C 1 RU; 19 Inch rack mount compatible 45 mm (1.75 in) high, 1RU 426 mm (16.75 in) wide (excluding rack brackets) 305 mm (12 in) deep MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 125 Transmitter Transmit Power:

+30 dBm (1 watt) at antenna port Output Control Range:

0 dB to 10 dB Frequency Stability:

Spurious Outputs:

Receiver Sensitivity (for 10-6 BER):

Residual BER:

Dynamic Range:

Interfaces Data:

Orderwire:

Service Channel:

Ethernet:

Console Port:

Alarms:

Antenna:

1.5 ppm

< 60 dBc 400S

< 60 dBc 900S

< 60 dBm 1400S Bandwidth 25 kHz 50 kHz 100 kHz 200 kHz

< 1 x 10-10

> 65 dB Data Rate 64 kbps 128 kbps 256 kbps 768 kbps Sensitivity 101 dBm 98 dBm 95 dBm 92 dBm EIA-530, G.703 100 , balanced (RJ-45) with optional FT1 Interface Board Voice handset interface, DTMF capable RS-232 @ 9600 bps 10 Base-T RS-232, 9600 bps to 38.4 kbps 4 programmable outputs; 4 inputs 50 Impedance Network Management System Accessibility:

Via built-in HTTP server or command line interface SNMP Management (Optional):

Using MIB II and custom enterprise MIB Diagnostic Functions Via Front Panel LEDs:

Power, Active, General Alarm, Rx Alarm, Tx Alarm

& I/O Alarm Via Front Panel LCD Display :

Measurements of RSSI, RF Power, Signal-to-Noise ratio, BER Data Loopback:

Local and Remote LEDR 400S LEDR 900S Agency Approvals EMC:

Transmission:

EMC:

ETS 300 385 FCC Part 101, RS-119 FCC Part 15 126 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C LEDR 1400S Transmission:

Environmental:

EMC:

Safety:

ETS 300 630, MPT 1717 ETS 300 019, Class 3.2 ETS 300 385 CE Mark 17.2 Specifications Models: LEDR 400F, 900F, 1400F General Frequency Ranges:

330512 MHz (LEDR 400F) 800960 MHz (LEDR 900F) 13501535 MHz (LEDR 1400F) RF Occupied Bandwidth:

500 kHz, 1 MHz & 2 MHz User Data Rates:

Permitted Data Throughput:

1 x E1 (2.048 Mbps) 2 x E1 (4.096 Mbps) 4 x E1 (8.192 Mbps) Channel Size 500 kHz 1 MHz 2 MHz Data Rate 1 x E1 (2.048 Mbps) 2 x E1 (4.096 Mbps) 4 x E1 (8.192 Mbps) Modulation Type:

32 QAM, 16 QAM, QPSK Forward Error Correction (FEC): Reed-Solomon Acquisition Time (Typical):

From power up, 10 seconds Voltage Range:

Power Consumption:

Temperature Range:

Humidity:

Size:

Transmitter 24 Vdc or 48 Vdc (20%) Less than 60 watts (non-protected configuration) 5 to 50 C 90% non-condensing @ 40 C 1RU, 19 Inch rack mount compatible 45 mm (1.75 in) high, 1RU 426 mm (16.75 in) wide (excluding rack brackets) 305 mm (12 in) deep Transmit Power:

+30 dBm (1 watt) at antenna port Output Control Range:

0 dB to 10 dB Frequency Stability:

Spurious Outputs:

Receiver Sensitivity (for 10-6 BER):

Residual BER:

Dynamic Range:

1.5 ppm

< 60 dBc (400F)

< 60 dBm (1400F) Data Rate 1 x E1 2 x E1 4 x E1 Sensitivity 90 dBm 87 dBm 84 dBm Bandwidth 500 kHz 1 MHz 2 MHz

< 1010

> 65 dB MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 127 Interfaces Data:

Orderwire:

G.703 120 , balanced (4 x RJ-45) Voice handset interface, DTMF capable Service Channel:

RS-232 @ 9600 bps Ethernet:

Console Port:

Alarms:

Antenna:

10 Base-T RS-232, 9600 bps to 38.4 kbps 4 programmable outputs, 4 inputs 50 Impedance Network Management System Accessibility:

Via built-in HTTP server or command line interface SNMP Management (Optional):

Using MIB II and custom enterprise MIB Diagnostic Functions Via Front Panel LEDs:

Power, Active, General Alarm, Rx Alarm, Tx Alarm, I/O Alarm Via Front Panel LCD Display :

Measurements of RSSI, RF Power, Signal-to-Noise ratio, BER Data Loopback:

Local and Remote Agency Approvals Transmission:

Environmental:

EMC:

Safety:

ETS 300 630, MPT 1717 ETS 300 019, Class 3.2 ETS 300 385 CE Mark 17.3 Specifications Protected Switch Chassis Transmitter Coupling Loss:

2 dB (Typical) Receive Coupling Losses:

Power Consumption:

4 dB with Symmetrical Splitter (Typical) 2 dB/10 dB with Asymmetrical Splitter (Typical) Less than 135 watts

(Two LEDR radios and Protected Switch Chassis) 17.4 Optional Equipment (Consult factory for details) Space Diversity Hot-standby Protected Warm-standby Protected Bandwidth Upgrade Kits LEDR 1400F 128 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C 17.5 Accessories 120/240 Vac 50/60 Hz Power Supply (24 Vdc Output) Orderwire Handset Other items listed in Table 29 on Page 116 NOTE: The factory reserves the right to make changes to this specification with-

out advance notice or obligation to any person. 17.6 I/O Connector Pinout Information OrderwireFront Panel Invisible place holder p RJ-45 1 2 3 4 5 6 RJ-11 Pin 1 2 3 4 5 6 Signal

+ 12 Vdc Ground Ear Ear +

Mouth Ground Direction Output Output Output Input Figure 32. Orderwire RJ-11 Connector CONSOLE PortFront Panel Invisible place holder TXD (DATA IN) RXD (DATA OUT) 234 1 5 89 67 NC NC NC GROUND NC NC NC DCE Figure 33. CONSOLE Port DB-9 Female Pinout MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 129 EthernetRear Panel Invisible place holder RJ-45 1 2 3 4 5 6 7 8 10Base-T Pin 1 2 3 4 5 6 7 8 Signal Ethernet Transmit High Ethernet Transmit Low Ethernet Receive High No Connection No Connection Ethernet Receive Low No Connection No Connection Direction Output Output Input Input Figure 34. Ethernet Connector EIA-530-A DataRear Panel Invisible place holder Source DCE DTE Return DTE Return DTE DCE Return DCE Return Signal Designation Pin No. Pin No. Signal Designation Test M ode Ext. Transm it Signal Elem ent Tim ing (A) Com m on Rem ote Loopback Request to Send (B) Local Loopback Receiver Signal Elem ent Tim ing (A) Receiver Data (B) Transm it Signal Elem ent Tim ing (A) Transm itted Data (B) 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 Clear to Send (B) Transm it Signal Elem ent Tim ing (B) Ext. Transm it Signal Elem ent Tim ing (B) Received Line Signal Detector (B) Receiver Signal Elem ent Tim ing (B) Received Line Signal Detector (A) Signal G round DCE Ready (A) Clear to Send (A) Request to Send (A) Received Data (A) Transm itted Data (A) Shield Source Return Return Return Return Return DCE Com m on DCE DCE DTE DCE DTE Com m on Figure 35. EIA-530 Connector Pinout (DB-25) G.703 Data Connectors (4)Rear Panel Invisible place holder RJ-45 1 2 3 4 5 6 7 8 Pin 1 2 3 4 5 6 7 8 Signal Differential digital output signal, ring Differential digital output signal, tip Ground

(Early models: No Connection) Differential digital input signal, ring Differential digital input signal, tip Early models: No Connection Late models: Ground No Connection No Connection Direction Output Output Input Input Figure 36. G.703 Data Connector Pinout (RJ-45) 130 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C Service ChannelRear Panel Invisible place holder TXD (DATA OUT) RXD (DATA IN) DTR (OUT) GROUND NC 234 1 5 89 67 DCD (IN) DSR (IN) CTS (IN) RTS (OUT) DTE Figure 37. Service Channel Connector Pinout (DB-9 Male) AlarmRear Panel Invisible place holder ALARM IN 4 GROUND ALARM OUT 4 ALARM IN 3 ALARM IN 2 234 1 5 89 67 ALARM IN 1 ALARM OUT 1 ALARM OUT 3 ALARM OUT 2 Invisible place holder Figure 38. Alarm Connector DB-9 Female Pinout

(See See Alarm I/O on Page 20 for parameters.) MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 131 17.7 Watts-dBm-Volts Conversion Table 31 is provided as a convenience for determining the equivalent voltage or wattage of an RF power expressed in dBm. Table 31. dBm-Volts-Watts Conversion Chart Invisible place holder Po dBm V

+53

+50

+49

+48

+47

+46

+45

+44

+43

+42

+41

+40

+39

+38

+37

+36

+35

+34

+33

+32

+31

+30

+29

+28

+27

+26

+25

+24

+23

+22

+21

+20

+19

+18

+17

+16

+15

+14

+13

+12

+11

+10

+9

+8

+7

+6

+5

+4

+3

+2

+1 100.0 200W 100W 70.7 80W 64.0 64W 58.0 50W 50.0 40W 44.5 32W 40.0 32.5 25W 20W 32.0 16W 28.0 12.5W 26.2 10W 22.5 8W 20.0 18.0 6.4W 5W 16.0 4W 14.1 3.2W 12.5 2.5W 11.5 2W 10.0 9.0 1.6W 1.25W 8.0 1.0W 7.10 800mW 6.40 640mW 5.80 500mW 5.00 4.45 400mW 320mW 4.00 250mW 3.55 200mW 3.20 160mW 2.80 125mW 2.52 100mW 2.25 2.00 80mW 64mW 1.80 50mW 1.60 40mW 1.41 32mW 1.25 25mW 1.15 1.00 20mW 16mW

.90 12.5mW

.80 10mW

.71 8mW

.64 6.4mW

.58

.500 5mW 4mW

.445 3.2mW

.400 2.5mW

.355 2.0mW

.320 1.6mW

.280

.252 1.25mW Po 1.0mW

.80mW

.64mW

.50mW

.40mW

.32mW

.25mW

.20mW

.16mW

.125mW

.10mW dBm V 0

-1

-2

-3

-4

-5

-6

-7

-8

-9

-10

-11

-12

-13

-14

-15

-16

.225

.200

.180

.160

.141

.125

.115

.100

.090

.080

.071

.064

.058

.050

.045

.040

.0355

.001mW

.01mW dBm mV Po

-17

-18

-19

-20

-21

-22

-23

-24

-25

-26

-27

-28

-29

-30

-31

-32

-33

-34

-35

-36

-37

-38

-39

-40

-41

-42

-43

-44

-45

-46

-47

-48 31.5 28.5 25.1 22.5 20.0 17.9 15.9 14.1 12.8 11.5 10.0 8.9 8.0 7.1 6.25 5.8 5.0 4.5 4.0 3.5 3.2 2.85 2.5 2.25 2.0 1.8 1.6 1.4 1.25 1.18 1.00 0.90

.1W dBm V

-98 2.9 2.51

-99 2.25

-100 2.0

-101 1.8

-102 1.6

-103 1.41

-104

-105 1.27 1.18

-106 dBm nV 1000

-107 900

-108

-109 800 710

-110 640

-111 580

-112 500

-113 450

-114

-115 400 355

-116 325

-117 285

-118 251

-119 225

-120

-121 200 180

-122 160

-123 141

-124 128

-125 117

-126

-127 100 90

-128 80

-129 71

-130 61

-131 58

-132 50

-133

-134 45 40

-135 35

-136 33

-137 29

-138 25

-139

-140 23 Po

.1pW Po

.01pW

.001pW

.1W

.01W

.01W dBm mV Po

-49

-50

-51

-52

-53

-54

-55

-56

-57

-58

-59

-60

-61

-62

-63

-64 0.80 0.71 0.64 0.57 0.50 0.45 0.40 0.351 0.32 0.286 0.251 0.225 .001W 0.200 0.180 0.160 0.141 Po

.1nW

.01nW

.001nW dBm V 128

-65

-66 115 100

-67 90

-68 80

-69 71

-70 65

-71

-72 58 50

-73 45

-74 40

-75 35

-76 32

-77

-78 29 25

-79 22.5

-80 20.0

-81 18.0

-82 16.0

-83 11.1

-84

-85 12.9 11.5

-86 10.0

-87 9.0

-88 8.0

-89 7.1

-90

-91 6.1 5.75

-92 5.0

-93 4.5

-94 4.0

-95 3.51

-96

-97 3.2 18.0 RADIO EVENT CODES Table 32 lists the event codes that may be encountered during operation of the radio. These codes may be read from a terminal using the events pending command. (See Page 57 for a full description of the events com-

mand.) 132 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C NOTE: The event codes listed here are available on radios equipped with the optional FT1 Interface Board. Standard S Series radios will display fewer codes. ID EVENT NAME DESCRIPTION Table 32. Event Codes EXT_ALARM_IN1 EXT_ALARM_IN2 EXT_ALARM_IN3 EXT_ALARM_IN4 MODULATOR_EV DEMODULATOR_EV MOD_SELFTEST DEMOD_SELFTEST PERM_REGN_CHECKSUM APP1_REGN_CHECKSUM APP2_REGN_CHECKSUM BOOT_REGN_CHECKSUM CONF1_REGN_CHECKSUM CONF2_REGN_CHECKSUM External Alarm Input #1 External Alarm Input #2 External Alarm Input #3 External Alarm Input #4 Communication failure with modulator Communication failure with demodulator Modulator selftest failed Demodulator selftest failed Permanent region checksum failed Application #1 checksum failed Application #2 checksum failed Boot loader checksum failed Configuration Data region

#1 checksum failed Configuration Data region

#2 checksum failed DEFAULT LED ALARM ALARM ALARM ALARM ALARM SNMP TRAP LEVEL CRITICAL CRITICAL CRITICAL CRITICAL CRITICAL ALARM CRITICAL NONE NONE CRITICAL INFORM NONE INFORM NONE INFORM NONE INFORM NONE INFORM NONE INFORM NONE INFORM RTC_TEST BBRAM_TEST BATTERY_LOW TX_SYNTH_LOCK RX_SYNTH_LOCK DIG_POWER_REF TEMPERATURE TX_POWER_LOOP DEMOD_SNR_LOW Real-time clock error NV-RAM test failed NONE NONE NV-RAM battery is low ALARM INFORM INFORM MAJOR Transmit Synthesizer out-of-lock Receive Synthesizer out-of-lock Digital Power Reference is out of specified range Temperature sensor reads over 80 degrees Celsius Transmit Power Loop is out-of-lock Demodulator Signal-to-Noise ratio is unacceptably low TXALARM CRITICAL RXALARM CRITICAL ALARM CRITICAL ALARM CRITICAL TXALARM MAJOR NONE MINOR 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 133 Table 32. Event Codes (Continued) ID EVENT NAME DESCRIPTION 23 DEMOD_AGC_RSSI 24 DEMOD_FEC_RECOVER 25 DEMOD_FEC_UNRECOVER 26 27 28 29 30 DEMOD_MULTIPATH DEMOD_ACQUISITION TX_TO_REMOTE_RX REDUNDANT_ALARM WDOG_TIME_OUT 31 RX_OFF 32 33 34 SOFTWARE_TX_OFF RTC_NOT_SET IO1_DIG_LOC_lOOPBACK 35 IO2_DIG_LOC_lOOPBACK 36 IO3_DIG_LOC_lOOPBACK 37 IO4_DIG_LOC_lOOPBACK 38 39 RF_LOCAL_LOOPBACK IO1_DIG_REM_LOOPBACK 40 IO2_DIG_REM_LOOPBACK Demodulator Automatic Gain Controlled RSSI too low FEC circuitry has detected and corrected one or more errors FEC circuitry has detected one or more uncorrectable errors Excessive multipath distortion detected Demodulator lost sync. lock on received signal Problem with link between the local transmitter &

remote Rx Problem with redundant unit Processor watchdog has expired and reset the processor Radio is not receiving due to a weak signal or equipment failure Software command has unkeyed the radio The real time clock is not programmed The radios 530 or TELCO I/O port is in Digital local loopback mode The radios 2nd TELCO I/O port is in Digital local loopback mode The radios 3rd TELCO I/O port is in Digital local loopback mode The radios 4th TELCO I/O port is in Digital local loopback mode The radio is in Local RF loopback test mode The radios 530 or TELCO I/O port is in Digital Remote loopback mode The radios 2nd TELCO I/O port is in Digital Remote loopback mode DEFAULT LED NONE SNMP TRAP LEVEL MINOR NONE MINOR NONE MINOR NONE MINOR RXALARM CRITICAL ALARM CRITICAL ALARM CRITICAL ALARM CRITICAL RXALARM CRITICAL TXALARM CRITICAL NONE MINOR NONE INFORM NONE INFORM NONE INFORM NONE INFORM NONE INFORM NONE INFORM NONE INFORM 134 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C Table 32. Event Codes (Continued) ID EVENT NAME DESCRIPTION 41 IO3_DIG_REM_LOOPBACK 42 IO4_DIG_REM_LOOPBACK 43 RAW_SERVICE_CHANNEL 44 45 46 47 48 ATOD_REFERENCE NEW_CONFIG_REV FPGA_LOAD DATE_TIME_CHANGE HARDWARE_TX_OFF 49 INACTIVE_ON 50 51 52 53 54 NO_OPTION_UNIT VOCODER_INIT_ERR VOCODER_ERROR POWER_ON_RESET EXT_HARD_RESET 55 EXT_SOFT_RESET 56 INACT_CONFIG_SYNC 57 NEW FIRMWARE LOADED 58 CONFIG_CHANGED The radios 3rd TELCO I/O port is in Digital Remote loopback mode The radios 4th TELCO I/O port is in Digital Remote loopback mode The Raw Service Channel data frame is exhibiting error A fault is detected with the Analog to Digital converter A new revision of configuration data structure has been detected FPGA is not loaded correctly The date or time is been modified The transmitter key hardware is in an unkeyed state Current radio transceiver is in standby mode when in protected radio chassis No Option Card is detected The voice processor initialization failed The voice processor is reporting a problem This indicates PowerOn Reset Cycle This indicates last Power-Up Cycle was due to External Hard Reset This indicates last Power-Up Cycle was due to External Soft Reset Protected 1+1 mode Active to Inactive Configuration data sync. error New firmware has been downloaded from flash memory. The radio transceiver configuration has been modified DEFAULT LED SNMP TRAP LEVEL NONE INFORM NONE INFORM ALARM MAJOR ALARM CRITICAL NONE INFORM NONE INFORM NONE INFORM TXALARM CRITICAL ALARM MAJOR NONE INFORM ALARM MAJOR ALARM MAJOR NONE INFORM NONE INFORM NONE INFORM ALARM CRITICAL NONE INFORM NONE INFORM MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 135 The user has rebooted the radio NONE INFORM Table 32. Event Codes (Continued) ID EVENT NAME DESCRIPTION A self test has completed execution A performance degradation threshold has been exceeded Another unit with the same unit ID has been detected The G821 status indicates that the link is unavailable The event log has been cleared There is a problem with the fan 59 60 SELFTEST_COMPLETE PERFORM_DEGRADED 61 DUPLICATE_UNIT_ID LINK_UNAVAILABLE EVENT_LOG_CLEARED FAN1_TROUBLE Reserved for future use USER_REBOOT 62 63 64 65 66 67 68 MODEM_LOCAL_LOOPBACK Modulator data path is locally looped back to Demodulator MODEM_REMOTE_LOOPBA CK Demodulator data path is looped back to modulator for remote radio loopback application Option card multiplexed data path from Line(s) is looped back 69 OPT_MUX_LOOBACK 70 71 72 73 IO1_REM_LOOPBACK_SERV Radio is server for remote radio loopback mode with its payload data at Line IO

#1 looped back to the commanding local radio IO2_REM_LOOPBACK_SERV Radio is server for remote radio loopback mode with its payload data at Line IO

#2 looped back to the commanding local radio IO3_REM_LOOPBACK_SERV Radio is server for remote radio loopback mode with its payload data at Line IO

#3 looped back to the commanding local radio IO4_REM_LOOPBACK_SERV Radio is server for remote radio loopback mode with its payload data at Line IO

#4 looped back to the commanding local radio DEFAULT LED SNMP TRAP LEVEL NONE INFORM ALARM INFORM ALARM INFORM NONE INFORM NONE INFORM ALARM INFORM NONE INFORM NONE INFORM NONE INFORM NONE INFORM NONE INFORM NONE INFORM NONE INFORM 74 IO1_RECVR_LOF Line IO #1 receiver Loss-of-framing alarm. I/O ALARM CRITICAL 136 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C Table 32. Event Codes (Continued) ID EVENT NAME DESCRIPTION 75 76 77 78 IO1_RECVR_LOS IO1_RECVR_ALOS IO1_RECVR_AIS IO1_RECVR_RAI 79 IO1_RECVR_MRAI 80 IO1_RECVR_SEF 81 IO1_RECVR_COFA 82 IO1_RECVR_MAIS 83 IO1_RECVR_FEBE 84 IO1_RECVR_LCV 85 86 87 88 89 90 91 IO1_RECVR_CRC IO1_RECVR_FBIT IO2_RECVR_LOF IO2_RECVR_LOS IO2_RECVR_ALOS I02_RECVR_AIS IO2_RECVR_RAI 92 IO2_RECVR_MRAI DEFAULT LED SNMP TRAP LEVEL I/O ALARM CRITICAL I/O ALARM CRITICAL I/O ALARM CRITICAL I/O ALARM CRITICAL I/O ALARM CRITICAL I/O ALARM CRITICAL I/O ALARM CRITICAL I/O ALARM CRITICAL I/O ALARM INFORM I/O ALARM INFORM I/O ALARM INFORM Line IO #1 receiver Loss-of-signal alarm Line IO #1 receiver Loss-of-analog-signal alarm Line IO #1 receiver detected AIS alarm Line IO #1 receiver detected RAI (yellow) alarm Line IO #1 receiver detected multi-framed RAI

(yellow) alarm Line IO #1 receiver detected Severely Errored Frames Line IO #1 receiver detected Change-of-Frame-

Alignment alarm Line IO #1 receiver detected multi-framed AIS alarm Line IO #1 receiver detected E1 Far-End-Block-Errors alarm Line IO #1 receiver detected Line-Code-

Violation alarm Line IO #1 receiver detected CRC alarm Line IO #1 receiver detected Frame Bit Error I/O ALARM INFORM Line IO #2 receiver Loss-of-framing alarm Line IO #2 receiver Loss-of-signal alarm Line IO #2 receiver Loss-of-analog-signal alarm Line IO #2 receiver detected AIS alarm Line IO #2 receiver detected RAI (yellow) alarm I/O ALARM CRITICAL I/O ALARM CRITICAL I/O ALARM CRITICAL I/O ALARM CRITICAL I/O ALARM CRITICAL Line IO #2 receiver detected multi-framed RAI

(yellow) alarm I/O ALARM CRITICAL MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 137 Table 32. Event Codes (Continued) ID EVENT NAME DESCRIPTION 93 IO2_RECVR_SEF 94 IO2RECVR_COFA 95 IO2_RECVR_MAIS 96 IO2_RECVR_FEBE 97 IO2_RECVR_LCV 98 99 IO2_RECVR_CRC IO2_RECVR_FBIT 100 IO3_RECVR_LOF 101 IO3_RECVR_LOS 102 IO3_RECVR_ALOS 103 IO3_RECVR_AIS 104 IO3_RECVR_RAI 105 IO3_RECVR_MRAI 106 IO3_RECVR_SEF 107 IO3_RECVR_COFA 108 IO3_RECVR_MAIS 109 IO3_RECVR_FEBE Line IO #2 receiver detected Severely Errored Frames Line IO #2 receiver detected Change-of-Frame-

Alignment alarm Line IO #2 receiver detected multi-framed AIS alarm Line IO #2 receiver detected E1 Far-End-Block-Errors alarm Line IO #2 receiver detected Line-Code-Violation alarm Line IO #2 receiver detected CRC alarm Line IO #2 receiver detected Frame Bit Error Line IO #3 receiver Loss-of-framing alarm Line IO #3 receiver Loss-of-signal alarm Line IO #3 receiver Loss-of-analog-signal alarm Line IO #3 receiver detected AIS alarm Line IO #3 receiver detected RAI (yellow) alarm Line IO #3 receiver detected multi-framed RAI

(yellow) alarm Line IO #3 receiver detected Severely Errored Frames Line IO #3 receiver detected Change-of-Frame-

Alignment alarm Line IO #3 receiver detected multi-framed AIS alarm Line IO #3 receiver detected E1 Far-End-Block-Errors alarm DEFAULT LED SNMP TRAP LEVEL I/O ALARM CRITICAL I/O ALARM CRITICAL I/O ALARM CRITICAL I/O ALARM INFORM I/O ALARM INFORM I/O ALARM INFORM I/O ALARM CRITICAL I/O ALARM CRITICAL I/O ALARM CRITICAL I/O ALARM CRITICAL I/O ALARM CRITICAL I/O ALARM CRITICAL I/O ALARM CRITICAL I/O ALARM CRITICAL I/O ALARM CRITICAL I/O ALARM CRITICAL I/O ALARM INFORM 138 LEDR Series II Installation and Operation Guide MDS 05-3627A01, Rev. C Table 32. Event Codes (Continued) ID EVENT NAME DESCRIPTION 110 IO3_RECVR_LCV 111 IO3_RECVR_CRC 112 IO3_RECVR_FBIT 113 IO4_RECVR_LOF 114 IO4_RE CVR_LOS 115 IO4_RECVR_ALOS 116 IO4_RECVR_AIS 117 IO4_RECVR_RAI 118 IO4_RECVR_MRAI 119 IO4_RECVR_SEF 120 IO4_RECVR_COFA 121 IO4_RECVR_MAIS 122 IO4_RECVR_FEBE 123 IO4_RECVR_LCV 124 IO4_RECVR_CRC DEFAULT LED SNMP TRAP LEVEL I/O ALARM INFORM I/O ALARM INFORM Line IO #3 receiver detected Line-Code-

Violation alarm Line IO #3 receiver detected CRC alarm Line IO #3 receiver detected Frame Bit Error I/O ALARM INFORM Line IO #4 receiver Loss-of-framing alarm Line IO #4 receiver Loss-of-signal alarm Line IO #4 receiver Loss-of-analog-signal alarm Line IO #4 receiver detected AIS alarm Line IO #4 receiver detected RAI (yellow) alarm Line IO #4 receiver detected multi-framed RAI

(yellow) alarm Line IO #4 receiver detected Severely Errored Frames Line IO #4 receiver detected Change-of-Frame-

Alignment alarm Line IO #4 receiver detected multi-framed AIS alarm Line IO #4 receiver detected E1 Far-End-Block-Errors alarm Line IO #4 receiver detected Line-Code-Violation alarm Line IO #4 receiver detected CRC alarm I/O ALARM CRITICAL I/O ALARM CRITICAL I/O ALARM CRITICAL I/O ALARM CRITICAL I/O ALARM CRITICAL I/O ALARM CRITICAL I/O ALARM CRITICAL I/O ALARM CRITICAL I/O ALARM CRITICAL I/O ALARM INFORM I/O ALARM INFORM I/O ALARM INFORM 139 LEDR Series II Installation and Operation Guide MDS 05-3627A01, Rev. C Table 32. Event Codes (Continued) ID EVENT NAME DESCRIPTION 125 IO4_RECVR_FBIT 126 DIG_REM_LOOPBACK 127 SERV_REM_LOOPBACK 128 BAD_CLKMODE Line IO #4 receiver detected Frame Bit Error For EIA-530, local radio is in remote loopback mode For EIA-530, local radio

(as remote server) is serving remote loopback mode Line framers detected bad clock mode configuration DEFAULT LED SNMP TRAP LEVEL I/O ALARM INFORM NONE INFORM NONE INFORM NONE INFORM 19.0 IN CASE OF DIFFICULTY MDS products are designed for long life and trouble-free operation. However, this equipment, as with all electronic equipment, may have an occasional component failure. The following information will assist you in the event that servicing becomes necessary. 19.1 FACTORY TECHNICAL ASSISTANCE Assistance for MDS products is available from our Technical Services group during business hours (8:00 A.M.5:30 P.M. Eastern Time). When calling, please give the complete model number of the radio, along with a description of the trouble symptom(s) that you are experi-

encing. In many cases, problems can be resolved over the telephone, without the need for returning the unit to the factory. Please use the following telephone numbers for product assistance:

716-241-5510 (Phone) 716-242-8369 (FAX) 19.2 FACTORY REPAIRS Component level repair of radio equipment is not recommended in the field. Many components are installed using surface mount technology, which requires specialized training and equipment for proper servicing. For this reason, the equipment should be returned to the factory for any PC board repairs. The factory is best equipped to diagnose, repair and align your radio to its proper operating specifications. 140 LEDR Series II Installation and Operation Guide MDS 05-3627A01, Rev. C If return of the equipment is necessary, you will be issued a Returned Material Authorization (RMA) number. The RMA number will help expedite the repair so that the equipment can be repaired and returned to you as quickly as possible. Please be sure to include the RMA number on the outside of the shipping box, and on any correspondence relating to the repair. No equipment will be accepted for repair without an RMA number. A statement should accompany the radio describing, in detail, the trouble symptom(s), and a description of any associated equipment normally connected to the radio. It is also important to include the name and telephone number of a person in your organization who can be contacted if additional information is required. The radio must be properly packed for return to the factory. The original shipping container and packaging materials should be used whenever possible. All factory returns should be addressed to:

Microwave Data Systems Inc. Customer Service Department

(RMA No. XXXX) 175 Science Parkway Rochester, NY 14620 USA When repairs have been completed, the equipment will be returned to you by the same shipping method used to send it to the factory. Please specify if you wish to make different shipping arrangements. 141 LEDR Series II Installation and Operation Guide MDS 05-3627A01, Rev. C 142 LEDR Series II Installation and Operation Guide MDS 05-3627A01, Rev. C GLOSSARY AMIAlternate Mark Inversion. A bipolar format where consecutive marks (ones) have the polarity inverted. Spaces (ones) are repre-

sented by zero volts. This technique prevents long sequences of positive or negative volt-

ages. DCE Data (circuit terminating) Communi-

cations Equipment. In data communications terminology, this is the modem side of a computer-to-modem connection. The trans-

ceiver is a DCE device which is designed to connect to a DTE device. AnalogSignals with a continuously varying amplitude, such as the human voice. BERTBit-error rate test. The results of a BERT are normally expressed as a ratio (power of 10) of the number of bits received in error compared to the total number received. BERBit-error rate. See also BERT. BitBinary digit. The smallest unit of digital data, often represented by a one or a zero. Eight bits usually comprise a byte. bpsBits-per-second. A measure of the infor-

mation transfer rate of digital data across a communication channel. ByteA digital word usually made up of eight bits. dBiDecibels of gain relative to an isotropic radiator. (A hypothetical antenna which radi-

ates equally in all directions.) Used to express antenna gain. dBmDecibels relative to one milliwatt. An absolute unit used to measure signal power, as in transmitter power output, or received signal strength. DTRData Terminal Ready. A control signal sent from the radio indicating that it is ready to transmit data. CPECustomer premise (provided) equip-

ment. Decibel (dB)A measure of the ratio between two signal levels. Frequently used to express the gain or loss of a system. DSPDigital Signal Processing. A processing technique that uses software algorithms to filter, shape, or otherwise modify the character-

istics of a given signal. In the LEDR radio, DSP is used primarily in modulation and demodula-

tion functions. E1An international telephony standard that operates at 2.048 megabits-per-second (Mbps). This transmission speed is commonly used throughout the world except for North America

(which uses T1 1.544 Mbps). Framed E1 con-

sists of 30 digitized telephone channels and two 64 Kbps control channels. EIRPEffective Isotropic Radiated Power. Commonly used to express the power radiated from a gain antenna. It is equal to the power transmitted (minus feedline loss) plus the antenna gain. Fade MarginThe maximum tolerable reduc-

tion in received signal strength which still pro-

vides an acceptable signal quality. This compensates for reduced signal strength due to multipath, slight antenna movement or changing atmospheric losses. Expressed in decibels. FECForward Error Correction. Extra data is added to the transmitted signal to allow for detection and correction of some transmission errors. MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 143 FrameA segment of data that adheres to a specific data protocol and contains definite start and end points. It provides a method of synchronizing transmissions. Fresnel ZoneA point of maximum width or girth of the transmitted radio signal. Obstruc-

tions in this region (the first Fresnel zone) can have a detrimental effect on reception quality. As a general rule, 60 percent of the first Fresnel zone should be free of obstructions in a well designed system. (Additional consider-

ations are also required when planning a micro-

wave path. G.703The ITU standard defining the charac-

teristics of digital interfaces (pulse shape, voltage levels, etc.). This applies to high-speed, three-level data being sent over coaxial or twisted pair lines. G.821The ITU standard by which data trans-

mission quality is measured. The analysis con-

siders available vs. unavailable time. Half-Power BeamwidthThe customary way of measuring the width of a directional antennas radiation pattern. This beamwidth is measured in degrees between the half-power points (the point at which the power is reduced 3 dB with respect to the main beam). HDB3High density bipolar order of 3. A line interface standard for E1 transmission that employs coding to eliminate data streams with four or more consecutive zeros. Hitless Switching OperationRefers to the practice of switching between receive signal paths without introducing bit errors or timing slips. This feature is required for space or fre-

quency diversity applications. Hot StandbyRefers to a state of the inactive

(standby) transceiver in a Protected or Redun-

dant configuration. In a Hot Standby configura-

tion, the standby transceiver is actively transmitting. ITUInternational Telecommunications Union. kbpsKilobits-per-second. LinecodeRefers to the data coding format used by the radio for the line interface. (It does not pertain to the radios modulation coding.) The available linecode selections are HDB3 and AMI. MbpsMegabits-per-second. MIBManagement Information Base. The MIB stores SNMP messages that are directed to the management console. This can include Server events, statistical data and system que-

ries. Multipath FadingSignals arriving at the receiver out of phase which have a tendency to cancel each other. It is caused by reflections of the transmitted wave and results in distortion at the receiver or weak received signal strength. MultiplexerA signal processing unit that combines multiple streams of data into one for transmission across a single data channel. NMSNetwork Management System. A soft-

ware application used to configure, diagnose and monitor a communication network. The LEDR radios SNMP program is an example of an NMS. Protected RadioA radio configuration where there are redundant modules that auto-

matically become active in the event of a failure. Protected OperationRefers to the practice of providing redundant transmit and receive signal paths through the radio (antenna to cus-

tomer payload interface) so that no single point of failure in a single radio will interrupt the link. This feature is also referred to as 1+1 Operation and is usually provided by operating the system using Hot Standby. PSCProtected Switch Chassis. Chassis holding data and RF control/switch circuitry in a redundant/protected configuration. 144 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C QAMQuadrature Amplitude Modulation. Uses phase shifts and amplitude changes to send high-speed data in a comparatively narrow RF channel. See also QPSK. QPSKQuadrature Phase Shift Keying. Uses four levels of phase shift to send high-speed data with a higher system gain than QAM mod-

ulation. See also QAM. Redundant SwitchingRefers to the practice of switching between transmit signal paths when a fault condition occurs on the currently active radio. RSSIReceived signal strength indication. Expressed in dBm. SNMPSimple Network Management Pro-

tocol. A common network management system

(NMS) protocol used to monitor and control a communications network SNRSignal-to-noise ratio. Expressed in decibels (dB). SWRStanding Wave Ratio. A parameter related to the ratio between forward transmitter power and the reflected power from the antenna system. As a general guideline, reflected power should not exceed 10% of the forward power

(2:1 SWR). TFTPTrivial File Transfer Protocol. A stan-

dard network protocol used to send and receive files between two devices. Warm StandbyRefers to a state of the inac-

tive (standby) transceiver in a Protected or Redundant configuration. In a Warm Standby configuration, the standby transceiver is not transmitting and must be keyed after switching. MDS 05-3627A01, Rev. C LEDR Series Installation & Operation Guide 145 146 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. C QUICK START GUIDE Continued from inside of the front cover. 7. Set TCP/IP settings to enable SNMP and/or Telnet Network Management (If required) The unit IP address are factory configured with a unique address based on the last three digits of the unit serial number. Use IP command to change the IP address, set netmask, gateway and IP Port as necessary. In a protected radio, change the RDNT settings to match the user-assigned IP addresses. 8. Assign user congurable elds (As required) Many items are user configurable, to ease customer use. These include, but are not limited to the following. See the NMS command description in the manual for more detail:

Set user information fields using INFO command (Page 62). Set alarms and alarm mappings using the ALARM (Page 49) and EVMAP (Page 57) commands. Set alarm thresholds using the THRESHOLD command (Page 83). Set the SNMP community using the SNMPCOMM command (Page 81). 9. Perform bench tests to verify the performance of the radio The data performance and NMS should be veried. Use the LOOPBACK commands (Page 69) to verify data throughput. (See BENCH TESTING OF RADIOS on Page 124.) 10.Install the link Peak the antennas for maximum RSSI using the continuously updated RSSI command (Page 80) through the front panel screen or the TREND command (Page 86) via the NMS. 11. Verify proper operation by observing the LED display Refer to Front Panel on Page 13 for a description of the status LEDs. Aim directional antenna for maximum receive signal strength using the RSSI Screen. 12. Congure the SNMP Manager software Refer to the SNMP Handbook (Part No. 05-3532A01). (This manual is published by MDS in paper form, or may be downloaded from our web site at www.microwavedata.com. End of Quick Start Guide 175 Science Parkway, Rochester, New York 14620 General Business: +1 (716) 242-9600 FAX: +1 (716) 242-9620 www.MicrowaveData.com