FCC ID: E5M-EL-705 EL705

 

MDS OEM-L/ss Data Transceiver MDS 05-3624A01, Rev. A JUNE 2000 QUICK START GUIDE Below are the basic steps for installing the transceiver. Detailed instructions are given in Installation Steps on page 8 of this guide. 1. Install and connect the antenna system to the radio Use good quality, low loss coaxial cable. Keep the feedline as short as possible. Preset directional antennas in the direction of desired transmission. 2. Connect the data equipment to the radios INTERFACE connector Connection to the radio must be made with a DB-25 Male connector. Connections for typical sys-

tems are shown below. Connect only the required pins. Do not use a straight-through RS-232 cable with all pins wired. Verify the data equipment is congured as DTE. (By default, the radio is congured as DCE.) The markup had a question about this figure. Please verify DB-25 to DB-25 Example DB-25 DB-25 DB-9 to DB-25 Example DB-9 DB-25

) U T R E T D

GND RXD TXD RTS CTS DSR GND DCD 1 2 3 4 5 6 20 7 8 1 GND 2 3 4 4 5 5 6 7 8 TXD RXD RTS CTS DSR GND DCD As required for application I R E V E C S N A R T

) E C D

) U T R E T D

DCD RXD TXD GND 1 2 3 5 DSR 6 20 RTS CTS 7 8 8 2 3 5 7 6 4 5 DCD TXD RXD GND DSR RTS CTS As required for application I R E V E C S N A R T

) E C D

3. Apply DC power to the radio (1030 Vdc @ 1.5 A minimum) Observe proper polarity. 4. Set the radios basic conguration with a Hand-Held Terminal (HHT) Set the transmit frequency (

Set the receive frequency (

Set the network address (

Set/verify the data rate using the

). TX xxx.xxx

). RX xxx.xxx

). ADDR xxx BAUD command. The default setting is BAUD 9600 8N1

. (Refer to TRANSCEIVER PROGRAMMING on page 14 for command details.) 5. Verify proper operation by observing the LED display Refer to Table 5 on page 14 for a description of the status LEDs. Rene directional antenna headings for maximum receive signal strength using the RSSI command. TABLE OF CONTENTS 1.0 GENERAL.................................................................................... 1 1.1 Introduction ......................................................................................1 1.2 Differences Among Models ..............................................................1 1.3 Applications ......................................................................................2 Point-to-Multipoint, Multiple Address Systems (MAS) ....................2 Point-to-Point System .....................................................................3 Switched Carrier Operation ............................................................4 Single Frequency (Simplex) Operation ...........................................4 1.4 Model Number Codes ......................................................................4 1.5 Accessories ......................................................................................5 2.0 GLOSSARY OF TERMS.............................................................. 5 3.0 INSTALLATION ............................................................................ 8 3.1 Installation Steps ..............................................................................8 3.2 Mounting the Transceiver Board .......................................................9 3.3 Mounting the Enclosed Transceiver ...............................................10 3.4 Antennas and Feedlines ................................................................10 Feedlines ......................................................................................11 3.5 Power Connection ..........................................................................11 3.6 Data Interface Connections ............................................................12 3.7 Power Conservation .......................................................................12 4.0 OPERATION .............................................................................. 13 4.1 LED Indicators ................................................................................14 5.0 TRANSCEIVER PROGRAMMING ............................................ 14 5.1 Hand-Held Terminal Connection & Startup ....................................15 5.2 Hand-Held Terminal Setup .............................................................16 5.3 Keyboard Commands .....................................................................17 Entering Commands.....................................................................17 Error Messages ............................................................................17 5.4 Detailed Command Descriptions ...................................................19 ADDR [0255] ..............................................................................19 AMASK [0000 0000FFFF FFFF] ................................................19 BAUD [xxxxx abc] .........................................................................20 CTS [0255] .................................................................................20 CTSHOLD [060000] ...................................................................21 DEVICE [DCE | CTS KEY] ...........................................................21 DKEY............................................................................................21 INIT...............................................................................................22 KEY ..............................................................................................22 MDS 05-3624A01, Rev. A Installation and Operation Guide i OWM [XXX...] ...............................................................................22 OWN [XXX...]................................................................................22 PWR [L | M | H].............................................................................23 RSSI and RSSI!............................................................................23 RX [xxx.xxx]..................................................................................23 RXTOT [NONE | 1255] ...............................................................23 SER ..............................................................................................24 SREV............................................................................................24 STAT .............................................................................................24 TOT [1255 | ON | OFF] ...............................................................24 TX [xxx.xxx] ..................................................................................24 6.0 TROUBLESHOOTING ............................................................... 25 6.1 LED Indicators ................................................................................25 6.2 Event Codes ...................................................................................25 Checking for AlarmsSTAT command.........................................25 Major Alarms vs. Minor Alarms.....................................................26 Event Code Denitions .................................................................26 7.0 TECHNICAL REFERENCE ....................................................... 28 7.1 OEM-L/ss Transceiver Specications .............................................28 7.2 Bench Testing Setup ......................................................................29 7.3 Helical Filter Adjustment ................................................................30 7.4 Upgrading the Radios Software .....................................................31 Using the Radio Software Upgrade Diskette ................................31 Using Radio Conguration Software.............................................32 7.5 dBm-Watts-Volts Conversion Chart ................................................33 ii Installation and Operation Guide MDS 05-3624A01, Rev. A RF Exposure Copyright Notice This Installation and Operation Guide and all software described herein are protected by

, a divi-

sion of Adaptive Broadband Corporation. All rights reserved. Microwave Data Systems reserves its right to correct any errors and omissions. copyright: 2000 Microwave Data Systems Operational Safety Notices The radio equipment described in this guide uses radio frequency trans-

mitters. Although the power level is low, the concentrated energy from a directional antenna may pose a health hazard. Do not allow people to come in close proximity to the front of the antenna when the transmitter is operating. This manual is intended to guide a professional installer to install, oper-

ate and perform basic system maintenance on the described radio. ISO 9001 Registration Microwave Data Systems adherence to this internationally accepted quality system standard provides one of the strongest assurances of product and service quality available. MDS Quality Policy Statement We, the employees of Microwave Data Systems, are committed to achieving total customer satisfaction in everything we do. Total Customer Satisfaction in:

Conception, design, manufacture and marketing of our products. Services and support we provide to our internal and external custom-

ers. Total Customer Satisfaction Achieved Through:

Processes that are well documented and minimize variations. Partnering with suppliers who are committed to providing quality and service. Measuring our performance against customer expectations and indus-

try leaders. Commitment to continuous improvement and employee involvement. MDS 05-3624A01, Rev. A Installation and Operation Guide iii Notice 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 specication for a product, please contact our Customer Service Team using the information at the back of this guide. In addition, manual updates can often be found on the MDS Web site at www.microwavedata.com. iv Installation and Operation Guide MDS 05-3624A01, Rev. A 1.0 GENERAL 1.1 Introduction This guide presents installation and operating instructions for the MDS OEM-L/ss family of digital radio transceivers. The radios can be pur-

chased as compact, modular boards that can be completely integrated within remote terminal units (RTUs) and PLC equipment. They are also available packaged in their own enclosures. These transceivers (Figure 1) are data telemetry radios designed to operate in a point-to-multipoint environment, such as electric utility Supervisory Control and Data Acquisition (SCADA) and distribution automation, gas field automation, water and wastewater SCADA, and on-line transaction processing applications. They use microprocessor control technology to provide highly reliable communications, even under adverse conditions. MDS OEM-L/ss radios use continuous-phase frequency shift keying

(CPFSK) modulation with root raised cosine filtering with 50% excess bandwidth. Domestic models employ a 4-level modem; ETSI models, a 2-level modem. The transceiver is designed for trouble-free operation with data equip-

ment provided by many other manufacturers, including remote terminal units (RTUs), programmable logic controllers (PLCs), flow computers, lottery terminals, automatic teller machines, and others. NOTE:

Some features may not be available on all radios, based on the options purchased and the applicable regulations for the region in which the radio will operate. 1.2 Differences Among Models The OEM-L/ss models are very similar in appearance and functionality. The major differences are over-the-air modem speed and frequency cov-

erage. Domestic models are capable of 9600 bps transmission over the air; ETSI models, 4800 bps. This does DATA INTER-

FACE between 1200 and 19200 bps. The frequency coverages are listed in the specifications. See OEM-L/ss Transceiver Specifications on page 28. port speed, however. All models accept asynchronous data affect the local not NOTE:

The frequency coverage cannot be set or changed by the user;

it is set at the factory. Finally, there are some hardware and software differences among the OEM-L/ss models. The operating software is among MDS OEM-L/ss radios. interchangeable not Since there are more than 2 models, I have made this section more generic. The specific frequency coverages can be listed in the specifi-

cations section.

---Van MDS 05-3624A01, Rev. A Installation and Operation Guide 1 Where are the LEDs? I could not see any-

thing that looked obvious. ---Van LED INDICATORS (4) Invisible place holder POWER CONNECTOR

(TIP/RING BARREL TYPE) EXTERNAL INTERFACE CONNECTOR

(DB-25) ANTENNA CONNECTOR

(BNC) Figure 1. Transceiver Connectors and Indicators 1.3 Applications Point-to-Multipoint, Multiple Address Systems (MAS) This is the most common application of the transceiver. It consists of a central master station and several associated remote units as shown in Figure 2. An MAS network provides communications between a central host computer and remote terminal units (RTUs) or other data collection devices. The operation of the radio system is transparent to the computer equipment. Often, a radio system consists of many widely separated remote radios. A point-to-multipoint or SCADA (Supervisory Control and Data Acqui-

sition) system may be a new installation for automatic, remote moni-

toring of gas wells, water tank levels, electric power distribution system control and measurement, etc. The radio system may replace a network of remote monitors currently linked to a central location via leased telephone lines. At the central office of such a system, there is usually a large mainframe computer and some means of switching between individual lines coming from each remote monitor. In this type of system, there is a modulator/demodulator

(modem) at the main computer and at each remote site, usually built into the remote monitor itself. Since the cost of leasing a dedicated-pair phone line is quite high, radio is often used as an alternative communi-

cation medium. 2 Installation and Operation Guide MDS 05-3624A01, Rev. A L/ss Invisible place holder R T U L/ss REMOTE R T U L/ss REMOTE C O H O M P S T U T O R Figure 2. Typical MAS Point-to-Multipoint Network Point-to-Point System Where permitted, the transceiver may also be used in a point-to-point arrangement. A point-to-point system consists of just two radiosone serving as a master and the other as a remoteas shown in Figure 3. It provides a simplex or half-duplex communications link for the transfer of data between two locations. Invisible place holder L/ss C O H O M P S T U T O R R T U L/ss REMOTE Figure 3. Typical Point-to-Point Link MDS 05-3624A01, Rev. A Installation and Operation Guide 3 Switched Carrier Operation NOTE:

MDS OEM-L/ss radios do not support full-duplex operation. Switched Carrier operation is a half-duplex mode of operation where the master station transmitter is keyed to send data and unkeyed to receive. MDS OEM-L/ss radios operate in switched carrier mode and are keyed on data. Single Frequency (Simplex) Operation Single frequency operation (also known as simplex) is a special case of switched carrier operation. Single frequency operation is automatically selected whenever the transmit and receive frequencies are set to the same value. 1.4 Model Number Codes This section/figure needs to be updated.

---Van The radio model number is printed on the end of the radio enclosure, and provides key information about how the radio was configured when it was shipped from the factory. See Figure 4 for an explanation of the model number characters. THIS INFORMATION IS SUBJECT TO CHANGE. DO NOT USE FOR PRODUCT ORDERING. INPUT VOLTAGE 1= 10.5 to 16 VDC OPERATION X= Base/Remote DIAGNOSTICS 0= NONE 1= Non-Intrusive Invisible place holder FEATURES 0= Full AGENCY N= N/A MOUNTING BRACKETS A= Standard B= None 2710A/D MODE N= Non-redundant MODEM A= 9600 BPS D= 3200 BPS BANDWIDTH 1= 12.5 kHz 2= 25 kHz 5= 5 kHz SAFETY N= N/A Figure 4. MDS OEM-L/ss Model Number Codes 4 Installation and Operation Guide MDS 05-3624A01, Rev. A 1.5 Accessories The transceiver can be used with one or more of the accessories listed in Table 1. Contact Microwave Data Systems for ordering information. Table 1. MDS OEM-L/ss Optional Accessories Accessory Description Hand-Held Terminal Kit (HHT) RTU Simulator Terminal that plugs into the radio for programming, diagnostics & control. Includes carrying case and cable set. Test unit that simulates data from a remote terminal unit. Comes with polling software that runs on a PC. Useful for testing radio operation. MDS P/N 02-1501A01 03-2512A01 DB-9 to DB-25 adapter Used to connect a PC to the radios DATA INTERFACE port

??-????A??

Radio Configuration Software Provides diagnostics of the transceiver

(Windows-based PC required.) 03-3156A01 2.0 GLOSSARY OF TERMS If you are new to digital radio systems, some of the terms used in this guide may be unfamiliar. The following glossary explains many of these terms and will prove helpful in understanding the operation of the trans-

ceiver. A figure, normally expressed in dB, repre-

Antenna System Gain senting the power increase resulting from the use of a gain-type antenna. System losses (from the feedline and coaxial connectors, for example) are subtracted from this figure to calculate the total antenna system gain. Bit The smallest unit of digital data, often represented by a one or a zero. Eight bits (plus start, stop, and parity bits) usually comprise a byte. Bits-per-second See

. BPS Bits-per-second. A measure of the information transfer rate of BPS digital data across a communication channel. A string of digital data usually made up of eight data bits and Byte start, stop and parity bits. Data Circuit-terminating Equipment See

. DCE Data Communications Equipment See

. DCE Data Terminal Equipment See

. DTE Decibels referenced to an ideal isotropic radiator in free space. dBi Frequently used to express antenna gain. MDS 05-3624A01, Rev. A Installation and Operation Guide 5 dBm Decibels referenced to one milliwatt. An absolute unit used to measure signal power, as in transmitter power output, or received signal strength. DCE Data Circuit-terminating Equipment (or Data Communications Equipment). In data communications terminology, this is the modem side of a computer-to-modem connection. The MDS OEM-L/ss is a DCE device. Decibel (dB) levels. Frequently used to express the gain (or loss) of a system. A measure computed from the ratio between two signal Data Terminal Equipment. A device that provides data in the DTE form of digital signals at its output. Connects to the DCE device. Equalization quency or phase distortion with compensating networks. The process of reducing the effects of amplitude, fre-

The greatest tolerable reduction in average received Fade Margin signal strength that will be anticipated under most conditions. Provides an allowance for reduced signal strength due to multipath, slight antenna movement, or changing atmospheric losses. A fade margin of 20 to 30 dB is usually sufficient in most systems. Frame A segment of data that adheres to a specific data protocol and contains definite start and end points. It provides a method of synchro-

nizing transmissions. Hardware Flow Control A transceiver feature used to prevent data buffer overruns when handling high-speed data from the RTU or PLC. When the buffer approaches overflow, the radio drops the clear-to-send

(CTS) line, which instructs the RTU or PLC to delay further transmis-

sion until CTS again returns to the high state. Host Computer The computer installed at the master station site, which controls the collection of data from one or more remote sites. The delay (usually expressed in milliseconds) between when Latency data is applied to TXD (Pin 2) at one radio, until it appears at RXD

(Pin 3) at the other radio. Multiple Address System. A radio system where a central MAS master station communicates with several remote stations for the pur-

pose of gathering telemetry data. Master (Station) the point at which polling enters the network. Radio which is connected to the host computer. It is Multiple Address System See

. MAS 6 Installation and Operation Guide MDS 05-3624A01, Rev. A This is the applications user communication data Payload data which is sent over the radio network. It is the transfer of payload data that is the primary purpose of the radio communications network. Programmable Logic Controller. A dedicated microprocessor PLC configured for a specific application with discrete inputs and outputs. It can serve as a host or as an RTU. Point-Multipoint System system designed with a central control station that exchanges data with a number of remote locations equipped with terminal equipment. A radio communications network or A request for data issued from the host computer (or master PLC) Poll to a remote radio. Programmable Logic Controller See

. PLC Received Signal Strength IndicationSee RSSI. Redundant OperationA station arrangement where two transceivers and two power supplies are available for operation, with automatic switchover in case of a failure. Remote (Station)A radio in a network that communicates with an associated master station. Remote Terminal UnitSee RTU. RSSIReceived Signal Strength Indication. A measure, in dB, of the strength of the signal received by a radio from an antenna. The radio must be calibrated for the RSSI value to be meaningful. RTURemote Terminal Unit. A data collection device installed at a remote radio site. SCADASupervisory Control And Data Acquisition. An overall term for the functions commonly provided through an MAS radio system. Standing Wave RatioSee SWR. Supervisory Control And Data AcquisitionSee SCADA. SWRStanding Wave Ratio. A parameter related to the ratio between forward transmitter power and the reflected power from the antenna system. As a general rule, reflected power should not exceed 10% of the forward power ( 2:1 SWR). MDS 05-3624A01, Rev. A Installation and Operation Guide 7 3.0 INSTALLATION There are three main requirements for installing the transceiverade-

quate and stable primary power, a good antenna system, and the correct data connections between the transceiver and the data device. MDS OEM-L/ss radios are available as stand-alone boards or in small enclo-

sures. Figure 5 shows the connections that are made to the stand-alone board. Invisible place holder POWER CONNECTOR

(TIP/RING BARREL TYPE) EXTERNAL INTERFACE CONNECTOR

(DB-25) ANTENNA CONNECTOR

(BNC) Figure 5. Connections to the Stand-Alone Board 3.1 Installation Steps Below are the basic steps for installing the transceiver. In most cases, these steps alone are sufficient to complete the installation. More detailed explanations appear at the end of these steps. 1. Mount the transceiver to a stable surface using the brackets supplied with the radio. 2. Install the antenna and antenna feedline for the station. Preset direc-

tional antennas in the desired direction. 3. Measure and install the primary power for the radio. NOTE: Use the radio in negative ground systems only. 8 Installation and Operation Guide MDS 05-3624A01, Rev. A 4. Set the radio conguration. The transceiver is designed for quick installation with a minimum of software conguration required in most cases. The selections that must be made or veried for new installations are:

Transmit frequency Receive frequency Network address The operating frequencies are not set at the factory unless they were specied at the time of order. Determine the transmit and receive frequencies to be used, and follow the steps below to program them. 5. Connect a hand-held terminal (HHT) to the DATA INTERFACE con-

to receive the ready >

ENTER nector. When the HHT beeps, press prompt. a. Set the transmit frequency with the TX xxx.xxx command. Press ENTER after the command. b. Set the receive frequency with the RX xxx.xxx command. Press ENTER after the command. c. Set the network address with the ADDR xxx command. ENTER Press reads PROGRAMMED OK to indicate successful entry. after the command. After programming, the HHT 6. Disconnect the HHT from the DATA INTERFACE connector. 7. Connect the data equipment to the transceivers DATA INTERFACE connector. Use only the required pins for the applicationdo not use a fully pinned (25 conductor) cable. Basic applications may require only the use of Pin 2 (transmit dataTXD), Pin 3 (Received DataRXD) and Pin 7 (signal ground). Additional connections may be required for some installations. Refer to the complete list of pin functions provided in Table 4 on page 12. 3.2 Mounting the Transceiver Board This is a placeholder for special mounting instructions of the stand-alone board, if necessary. MDS 05-3624A01, Rev. A Installation and Operation Guide 9 3.3 Mounting the Enclosed Transceiver Figure 6 shows the mounting dimensions of the transceiver. Invisible place holder Is Section 3.3 to be retained in this ver-

sion of the manual?

---Van ALTERNATE POSITION AAAAA A A AA AA A AA A A A AAAAAAAAAAAA M C

5 7 4 4 1 4

. m m 0 7

5 7

. 2 AAAAAA A AA A AA AAA A A A A AAAAAAAAAAAAAA m m 4 8 1

5 2 7

. 6.63"

168 mm 8.5"

216 mm 5.625"

143 mm

0

. 2 m m 0 5

5 2

. 2 m m 7 5 AAAAAAAAA Figure 6. Transceiver Mounting Dimensions 3.4 Antennas and Feedlines Antennas The transceiver can be used with a number of antennas. The exact style depends on the physical size and layout of the radio system. At remote sites, a directional Yagi (Figure 7) or corner reflector antenna is gener-

ally recommended to minimize interference to and from other users. Antennas of this type are available from several manufacturers. 10 Installation and Operation Guide MDS 05-3624A01, Rev. A Invisible place holder Figure 7. Typical Yagi Antenna (mounted to mast) Feedlines The selection of antenna feedline is very important. Poor quality cables should be avoided as they will result in power losses that may reduce the range and reliability of the radio system. Table 2 shows the losses that will occur when using various lengths and types of cable at 200 MHz; Table 3, the losses at 400 MHz. Regardless of the type of cable used, it should be kept as short as possible to mini-

mize signal loss. Table 2. Length vs. Loss in Coaxial Cables at 200 MHz Cable Type RG-8A/U 1/2 inch HELIAX 7/8 inch HELIAX 1-1/4 inch HELIAX 1-5/8 inch HELIAX 3 Meters

(10 Feet) 15 Meters

(46 Feet) 30 Meters

(91 Feet) 150 Meters

(525 Feet) 0.32 dB 0.10 dB 0.05 dB 0.04 dB 0.03 dB 1.6 dB 0.49 dB 0.27 dB 0.20 dB 0.17 dB 3.2 dB 0.98 dB 0.54 dB 0.40 dB 0.33 dB 16 dB 4.9 dB 2.7 dB 2.0 dB 1.65 dB Table 3. Length vs. Loss in Coaxial Cables at 400 MHz Cable Type RG-8A/U 1/2 inch HELIAX 7/8 inch HELIAX 1-1/4 inch HELIAX 1-5/8 inch HELIAX 10 Feet

(3.05 Meters) 50 Feet

(15.24 Meters) 100 Feet

(30.48 Meters) 500 Feet

(152.4 Meters) 0.51dB 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 3.5 Power Connection The transceiver can be operated from any well-filtered 10 to 30 Vdc power source. The power supply should be capable of providing at least 1 ampere of continuous current. MDS 05-3624A01, Rev. A Installation and Operation Guide 11 NOTE: The radio is designed for use only in negative ground systems. 3.6 Data Interface Connections The transceivers DATA INTERFACE connector is used to connect the transceiver to an external DTE data terminal that supports the EIA-232

(formally RS-232) format. The transceiver supports asynchronous data rates up to 19200 bps. The data rate at the DATA INTERFACE connector may differ from the data rate over the air. Table 4 lists each pin on the DATA INTERFACE connector and describes its function. Do not use a 25 wire (fully pinned) cable for connection to the DATA INTERFACE connector. Use only the required pins for the application. Damage may result if improper connections are made. For EIA-232 sig-

naling, typical applications require the use of Pins 1 through 8 only. 3.7 Power Conservation In some installations, such as at solar-powered sites, it may be necessary to keep the transceivers power consumption to an absolute minimum. This can be accomplished by removing power from the radio. When power is restored, the radio is ready to receive data within 75 millisec-

onds. Table 4. DATA INTERFACE Connector Pinouts CAUTION USE ONLY REQUIRED PINS Pin Number Input/

Output 1 2 3 4 5 6 7 8 9

IN OUT IN OUT OUT

OUT Pin Description Protective Ground. Connects to ground (negative supply potential) on the radios PC board and chassis. TXDTransmitted Data. Accepts TX data from the connected device. RXDReceived Data. Outputs received data to the connected device. RTSRequest-to-Send Input. Keys the transmitter when RTS is at logic high. CTSClear-to-Send Output. Goes high after the programmed CTS delay time has elapsed (DCE) or keys an attached radio when RF data arrives (CTS KEY). DSRData Set Ready. Provides a +6 Vdc DSR signal through a 2.5 k resistor. Signal Ground. Connects to ground (negative supply potential) at radios PC board. DCDData Carrier Detect. Goes high when the modem detects a data carrier from the master station.

Do not connectReserved for future use. 12 Installation and Operation Guide MDS 05-3624A01, Rev. A Table 4. DATA INTERFACE Connector Pinouts (Continued) Pin Number Input/

Output Pin Description 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

OUT

IN/OUT OUT

IN

OUT Do not connectReserved for future use. Receive Audio Output. Connects to the audio input of an external (AFSK) modem. The output impedance is 600 , and the level is factory set to suit most installations. Use Pin 7 for the modems return lead. Do not connectReserved for future use. Do not connectReserved for future use. Do not connectReserved for future use. Do not connectReserved for future use. Do not connectReserved for future use. Do not connectReserved for future use. Accessory Power. Unregulated Input/Output. Provides a source of input power for low current accessories. Excessive drain on this connection will trip self-resetting fuse F1 on the transceiver PC board. The voltage at this pin will match the input voltage to the transceiver. 5.8 Vdc Regulated Output. Provides a source of regulated voltage at 100 mA for low power accessories. Do not connectReserved for future use. Do not connectReserved for future use. Do not connectReserved for future use. Auto-Open. A logic high (>4.0 volts) on this pin enables the DATA INTERFACE for normal data operation. A logic low (<0.5 volts) on this pin disables data operation and enables diagnostic operation. Do not connectReserved for future use. Alarm. A logic low (less than 0.5 volts) on this pin indicates normal operation. A logic high (greater than 4 volts) indicates that some alarm condition is present. This pin can be used as an alarm output, provided the internal series resistance of 1 k is considered. Invisible place holder 4.0 OPERATION In-service operation of the transceiver is completely automatic. Once the unit has been properly installed and configured, operator actions are limited to observing the front panel LED status indicators for proper operation. If all parameters are correctly set, operation of the radio can be started by following these steps:

1. Apply DC power to the transceiver. MDS 05-3624A01, Rev. A Installation and Operation Guide 13 2. Observe the LED status panel for the proper indications (Table 5). 3. If not done earlier, rene the antenna heading of the station to maxi-

mize the received signal strength (RSSI) from the master station. Use the RSSI command from an HHT connected to the radios DATA INTERFACE connector.See Section 5.0, TRANSCEIVER PRO-

GRAMMING. This can also be done with a DC voltmeter as described in Section 4.2, RSSI Measurement. 4.1 LED Indicators Table 5 describes the function of each status LED. PWR DCD TXD RXD Table 5. LED Status Indicators LED Name Description PWR DCD TXD RXD ContinuousPower is applied to the radio, no problems detected. Rapid flash (five times-per-second)Fault indication. Flashing once every secondUnit is not programmed. Radio is in Bootloader mode. FlashingIndicates the radio is receiving intermittent data frames. An EIA-232 mark signal is being received at the DATA INTERFACE connector. An EIA-232 mark signal is being sent out from the DATA INTERFACE connector. 5.0 TRANSCEIVER PROGRAMMING Programming and control of the transceiver (administrative mode) is performed through the radios DATA INTERFACE connector with an MDS Hand-Held Terminal (MDS P/N 02-1501A01). This section contains a reference chart (Table 7) followed by detailed descriptions for each user command. NOTE: In addition to HHT control, Windows-based software is avail-

able (MDS P/N 03-3156A01) to allow diagnostics and programming using a personal computer. An installation booklet and on-line instructions are included with the soft-

ware. Contact MDS for ordering information. 14 Installation and Operation Guide MDS 05-3624A01, Rev. A 5.1 Hand-Held Terminal Connection & Startup This section gives basic information for connecting and using the MDS Hand-Held Terminal. For more information about the terminal, refer also to the instructions included with each HHT kit. The steps below assume that the HHT has been configured for use with the transceiver (80 character screen display). If the HHT was previously used with a different model transceiver, or if its default settings have been changed, refer to Section 5.2, Hand-Held Terminal Setup for setup details. Follow these steps to connect the HHT:

1. Connect the HHTs coiled cord to the DATA INTERFACE (DB-25) connector on the radio as shown in Figure 8. Pin 23 of the HHT cable must be grounded to enable the diagnostic channel. (See Table 4.) This automatically places the radio into the control and programming mode. 2. When the HHT is connected, it runs through a brief self-check, ending with a beep. After the beep, press

> prompt. ENTER to obtain the ready Invisible place holder I am guessing here about the look of the connector. If this is way off, I would like to look at the real thing during my next visit.

---Van 5 F 2 7 I R 5

4 F D 4 M H Q

, V T S H I F E N 3 8 J S W E S C B K S 6 0 P O 9 T X S P A C E Y E N T E R 1 F A

2 F B F

K

C L 1

3 F G P

U C T R L Z Figure 8. Hand-Held Terminal Connected to the Transceiver MDS 05-3624A01, Rev. A Installation and Operation Guide 15 5.2 Hand-Held Terminal Setup The following is a set of instructions for re-initializing an HHT for use with the transceiver. These steps may be required if the HHT was previ-

ously used with a different radio, or if the HHT default settings have been inadvertently altered. 1. Plug the HHT into the DATA INTERFACE connector. Enable the setup mode by pressing the sequence. The display shown in Figure 9 appears. SHIFT CTRL and

, SPACE keys in Invisible place holder F A F F B C D E F F 1 Figure 9. HHT Setup Display 2. The rst of 15 menu items is displayed. Settings are reviewed by key. Parameter set-

pressing the NEXT function controlled by the tings are changed by pressing the ROLL function controlled by the A E key. 3. Set up the HHT as listed in Table 6. Table 6. HHT Operational Settings Parameter Setting Parameter Setting Re-init HT Baud Rate Comm bits NO 9600 8,1,n Parity Error OFF Key Repeat OFF Echo Shift Keys OFF YES Ctl Chars PROCS Scroll On Cursor 33rd ON CRLF for CR OFF Self Test Key Beep Screen Size FAST ON 80 Menu Mode LONG 16 Installation and Operation Guide MDS 05-3624A01, Rev. A 5.3 Keyboard Commands Table 7 is a reference chart of software commands for the transceiver. Programmable information is shown in brackets [ ] following the com-

mand name. See Section 5.4, Detailed Command Descriptions for detailed command descriptions. Entering Commands To enter a command, type the command, followed by an stroke. For programming commands, the command is followed by SPACE and the appropriate information or values, then ENTER ENTER

. key-

Here are some additional points to remember when using the HHT:

Use the mode. SHIFT key to access numbers; press again to return to letter Use the The flashing square cursor ( ) indicates that letter mode is key to edit information or commands entries. ESC/BKSP selected. The flashing superscript rectangular cursor (

number mode is selected.

) indicates that Error Messages Listed below are some possible error messages that may be encountered when using the HHT:

UNKNOWN COMMANDThe command was not recognized. Refer to the command description for command usage information. INCORRECT ENTRYThe command format or its associated values were not valid. Refer to the command description for command usage infor-

mation. COMMAND FAILEDThe command was unable to successfully complete. This may indicate an internal software problem. NOT PROGRAMMEDSoftware was unable to program the internal radio memory or the requested item was not programmed.This is a serious internal radio error. Contact MDS for assistance. TEXT TOO LONGResponse to OWN or OWM command when too many characters have been entered. Refer to the command description for command usage information. NOT AVAILABLEThe entered command or parameter was valid, but it referred to a currently unavailable choice. Refer to the command description for command usage information. MDS 05-3624A01, Rev. A Installation and Operation Guide 17 ACCESS DENIEDThe command is unavailable to the user. Refer to the command descriptions for command information. EEPROM FAILURE The INIT command was unable to write to EEPROM. This is a serious internal radio error. Contact MDS for assistance. Table 7. Command summary Command name Function ADDR [0255]

Details page 19 AMASK [0000 0000FFFF FFFF]

Details page 19 BAUD [xxxxx abc]

Details page 20 CTS [0255]

Details page 20 CTSHOLD [060000]

Details page 21 DEVICE [DCE | CTS KEY]

Details page 21 DKEY Details page 21 INIT Details page 22 KEY Details page 22 OWM [XXX...]

Details page 22 OWN [XXX...]

Details page 22 PWR [L | M | H]

Details page 23 RSSI and RSSI!

Details page 23 RX [xxx.xxx]

Details page 23 Set or display the network address of the radio. Set or display hex code identifying which events trigger an alarm. Set or display the DATA INTERFACE data rate and control bits. Set or display the Clear-to-Send delay in milliseconds. Set or display the delay, in milliseconds, at the end of a CTS line response; CTS Key operation only. Set or display the device behavior of the radio. Dekey the radio (transmitter OFF). This is generally a radio test command. Set radio parameters to factory defaults. Key the radio (transmitter ON). This is generally used for radio testing. Set or display the owners message. Set or display the owners name. Set or display the transmit power setting. Display the Received Signal Strength Indication. Set or display the receive frequency. RXTOT [NONE | 1255]

Details page 23 Set or display the value of the receive time-out timer. SER Details page 24 SREV Details page 24 Display the radio serial number. Display the software revision level. 18 Installation and Operation Guide MDS 05-3624A01, Rev. A Table 7. Command summary (Continued) Command name Function STAT Details page 24 Display the current alarm status. TOT [1255 | ON | OFF]

Details page 24 Set or display the time-out timer status and the timer delay in milliseconds. TX [xxx.xxx]

Details page 24 Set or display the transmit frequency. 5.4 Detailed Command Descriptions The only critical commands for most applications are transmit fre-

quency (TX xxx.xxx), receive frequency (RX xxx.xxx), and network address

(ADDR xxx). However, proper use of the additional commands allows you to tailor the transceiver for a specific use or conduct basic diagnos-

tics on the radio. This section gives more detailed information for the user commands previously listed in Table 7. In many cases, the commands shown here can be used in two ways. First, you can type only the command name to view the currently pro-

grammed data. Secondly, you can set or change the existing data by typing the command, followed by a space, and then the desired entry. In the list below, allowable data values, if any, are shown in brackets fol-

lowing the command name. The separation of values by pipes (|) indi-

cates that you can enter one of the values in the list. ADDR [0255]

The ADDR command displays or sets the network address of the radio. In order for all the radios in a network to communicate, their network addresses must be identical. AMASK [0000 0000FFFF FFFF]

The AMASK (alarm mask) command displays or sets which events cause the alarm output signal to be active. Normally, the mask is FFFF FFFF, meaning that any of the 32 possible events will activate the alarm output signal. No special configuration is required for typical applications. Entering the AMASK command alone displays the current setting of alarm events in hexadecimal format. Entering the AMASK command followed by an eight-digit hexadecimal number reprograms the specified events to trigger an alarm. Each bit that is a 1 identifies an associated alarm condition that can trigger the alarm output status line. Each bit that is a 0 treats the asso-

ciated alarm as irrelevant when deciding whether or not to assert the alarm output status line. MDS 05-3624A01, Rev. A Installation and Operation Guide 19 Thus, an eight-digit hexadecimal number can classify up to 32 events as alarm triggers for the alarm output status line. See Table 8 on page 26 for a list of the event codes and their hex values. The hex value of the mask is simply the sum of the hex values of the event codes corre-

sponding to the alarm triggering events. BAUD [xxxxx abc]

This command sets (or displays) the communication attributes for the DATA INTERFACE port. The first parameter (xxxxx) is baud rate. Baud rate is specified in bits-per-second (bps) and must be one of the following speeds: 1200, 2400, 4800, 9600, or 19200. The second parameter of the BAUD command (abc) is a three-character block indicating how the data is encoded:

a = Data bits (7 or 8) b = Parity (N for None, O for Odd, E for Even) c = Stop bits (1 or 2) The factory default setting is 9600 baud, 8 data bits, no parity, 1 start bit, and 1 stop bit (Example: 9600 8N1). NOTE: 7N1, 8O2, and 8E2 are invalid communication settings and are not supported by the transceiver. CTS [0255]

The CTS (clear-to-send) command sets or displays the timer value asso-

ciated with the CTS line response. The command parameter ranges from 0 to 255 milliseconds. For DCE operation (see DEVICE command), the timer specifies how long to wait after the RTS line goes high, before the radio asserts CTS and the DTE can transmit the data. A CTS value of zero keys the radio and asserts the CTS line immediately after the RTS line goes high. For CTS Key operation (see DEVICE command), the timer specifies how long to wait after asserting the CTS, before sending data out the DATA INTERFACE port. A timer value of zero means that data will be sent out the data port without imposing a key-up delay. (Other delays may be present, based on selected radio operating parameters.) 20 Installation and Operation Guide MDS 05-3624A01, Rev. A CTSHOLD [060000]

For CTS Key operation (see DEVICE command), the CTSHOLD command sets or displays the timer value associated with the end of a CTS line response. The timer value specifies the length of time that CTS remains following the transmission of the last character from the RXD pin of the DATA INTERFACE port. The time is in milliseconds. The default value is 0, which means that CTS drops immediately after the last character is transmitted. For DCE operation (see DEVICE command), this command has no effect. The response CTSHOLD n/a is displayed. DEVICE [DCE | CTS KEY]

The DEVICE command sets or displays the device behavior of the radio. The command parameter is either DCE or CTS KEY. The default selection is DCE. In this mode, CTS goes high following RTS, subject to the CTS programmable delay time. Keying is stimulated by the input of characters at the data port. Hardware flow control is implemented by signaling the CTS line if data arrives faster than it can be buffered and transmitted. If CTS KEY is selected, the radio is assumed to be controlling another radio. The RTS line is ignored and the CTS line is used as a keyline con-

trol for the other radio. CTS is asserted immediately following the receipt of RF data, but data is not sent out the DATA INTERFACE port until the CTS programmable delay time has expired. (This gives the other radio time to key.) DKEY This command deactivates the transmitter after it has been keyed with the KEY command. NOTE: The DKEY and KEY commands are not intended for normal operation. They are tools for field testing and installation. MDS 05-3624A01, Rev. A Installation and Operation Guide 21 INIT The INIT command is used to re-initialize the radios operating parame-

ters to the factory defaults. This may be helpful when trying to resolve configuration problems that may have resulted from the entry of one or more improper command settings. Entry of this command allows you to get back to a known working state. The following changes to the radio are made when INIT is entered:

AMASK is set to FFFF FFFF BAUD is set to 9600 baud, 8 data bits, no parity, and 1 stop bit

(9600 8N1) CTS is set to 0 CTSHOLD is set to 0 DEVICE is set to DCE PWR is set to H [+33 dBm (2 watts)]

RXTOT is set to NONE TOT is set to OFF All other commands stay at their previously established settings. KEY This command activates the transmitter. The transmitter stays keyed until either the DKEY command is entered, or the transmitter time-out timer is enabled and times out. See also the DKEY and TOT commands. NOTE: The KEY and DKEY commands are not intended for normal operation. They are tools for field testing and installation. OWM [XXX...]

This is a command to display or set an owners message. To program the owners message, type OWM then the message, followed by ENTER The maximum number of characters that can be entered is 30. To display the owners message, type OWM then message appears on the display. ENTER

. The owners OWN [XXX...]

This is a command to display or set an owners name. To program the owners name, type OWN then the name, followed by

. The max-

imum number of characters that can be entered is 30. ENTER To display the owners name, type OWN then name appears on the display. ENTER

. The owners 22 Installation and Operation Guide MDS 05-3624A01, Rev. A PWR [L | M | H]

NOTE: This function may not be available, depending on certification requirements for a particular region. This command displays or sets the desired RF forward output power set-

ting of the radio. The PWR command parameter is specified as L (low), M (medium), or H (high). The default setting is H. The values of L, M, and H are determined by factory calibration. Typically they are:

L = 20 dBm (100 mW) M = 30 dBm (1 W) H = 33 dBm (2 W) RSSI and RSSI!

These commands continuously display the radios Received Signal Strength Indication (RSSI) in dBm units. Incoming signal strengths from 50 dBm to 120 dBm are displayed. The RSSI command causes the diagnostic port to enter an RSSI update mode. The port displays an updated RSSI output line at intervals of approximately 1 second. Press to terminate the display. ENTER The RSSI! command displays a one-time reading of the RSSI at the diag-

nostic port. NOTE: The RSSI reading is valid only if the unit has been properly calibrated. RX [xxx.xxx]

It was unclear from the markup whether there should be something or nothing in the second para-

graph under RX. This command sets or displays the radios receive frequency in MHz. The frequency must be an integer multiple of the step size and must be in the valid range. If the entered frequency is invalid, the HHT displays the message INCORRECT ENTRY. There is no factory default. RX is factory set to customer order. RXTOT [NONE | 1255]

The RXTOT command sets or displays the receive time-out timer value in minutes. This timer triggers an alarm (event 12) if data is not detected within the specified time. Entering the RXTOT command without a parameter displays the timer value in minutes. Entering the RXTOT command with a parameter ranging from 1 to 255 resets the timer in minutes. Entering the RXTOT command with the parameter NONE disables the timer. MDS 05-3624A01, Rev. A Installation and Operation Guide 23 SER This command displays the radios serial number as recorded at the fac-

tory. SREV This command displays the software revision level of the transceiver firmware. STAT This command displays the current alarm status of the transceiver. If no alarms exist, the message NO ALARMS PRESENT appears at the top of the HHT display. If an alarm does exist, a two-digit code (0031) is displayed and the alarm is identified as MAJOR or MINOR. A brief description of the alarm code is also given. Detailed descriptions of event codes are provided in Table 8 on page 26. If more than one alarm exists, the word MORE appears at the bottom of the screen and additional alarms are viewed by pressing the ENTER key. Alarms are displayed in ascending order, major alarms before minor ones. TOT [1255 | ON | OFF]

This command sets or displays the transmitter time-out timer value

(1255 seconds), as well as the timer status (ON or OFF). The command parameter can be either the timer value or the status, but not both. The parameter ON enables the timer; OFF disables the timer. If the timer is on, and the radio remains keyed for a longer duration than the TOT value, the transmitter is automatically unkeyed. When this hap-

pens, the radio must be commanded back to an unkeyed state before a new keying command is accepted. By default the timer is ON and set to 30 seconds. TX [xxx.xxx]

It was unclear from the markup whether there should be something or nothing in the second para-

graph under TX. This command sets or displays the radios transmit frequency in MHz. The frequency must be an integer multiple of the step size and must be in the valid range. If the entered frequency is invalid, the HHT displays the message INCORRECT ENTRY. There is no factory default. TX is factory set to customer order. 24 Installation and Operation Guide MDS 05-3624A01, Rev. A 6.0 TROUBLESHOOTING Successful troubleshooting of the radio system is not difficult, but it requires a logical approach. It is best to begin troubleshooting at the master station, as the rest of the system depends on the master for polling commands. If the master station has problems, the operation of the entire network can be compromised. It is good practice to start by checking the simple things. For proper operation, all radios in the network must meet these basic requirements:

Adequate and stable primary power. The radio contains an inter-

nal self-resetting fuse (4A). Remove and re-apply primary power to reset. Secure connections (RF, data, and power) An efficient and properly aligned antenna system with a good received signal strength (at least 90 dBm). It is possible for a system to operate with weaker signals, but reliability will be degraded. Proper programming of the transceivers operating parameters

(see Section 5.0, TRANSCEIVER PROGRAMMING). The correct interface between the transceiver and the connected data equipment (correct cable wiring, proper data format, timing, etc.) 6.1 LED Indicators The LED status indicators are an important troubleshooting tool and should be checked whenever a problem is suspected. Table 5 on page 14 describes the function of each status LED. 6.2 Event Codes When an alarm condition exists, the transceiver creates a code that can be read on an HHT connected to the DATA INTERFACE port. These codes can be very helpful in resolving many system difficulties. Refer to Table 8 for a definition of the event codes. Checking for AlarmsSTAT command To check for alarms, enter STAT on the HHT. If no alarms exist, the mes-

sage NO ALARMS PRESENT appears at the top of the display (Figure 10). MDS 05-3624A01, Rev. A Installation and Operation Guide 25 Invisible place holder Figure 10. HHT Display in Response to STAT Command If an alarm does exist, the STAT command displays a two-digit alarm code (0031) and the event is identified as a Major or Minor Alarm. A brief description of the alarm is also given. If more than one alarm exists, the word MORE appears at the bottom of the screen. To view additional alarms, press ENTER

. Major Alarms vs. Minor Alarms Major Alarmsreport serious conditions that generally indicate a hard-

ware failure, or other abnormal conditions that will prevent (or seriously degrade) further operation of the transceiver. Major alarms generally indicate the need for factory repair. Contact MDS for further assistance. Minor Alarmsreport conditions that, under most circumstances will not prevent transceiver operation. These include out-of-tolerance condi-

tions, baud rate mismatches, etc. The cause of these alarms should be investigated and corrected to prevent eventual system failure. Event Code Definitions Table 8 contains a listing of all event codes that may be reported by the transceiver. Event Code Hex Value Event Class 00 0000 0000

Table 8. Event Codes Description No alarms present. Not used. 0800 0000 Major One or both of the internal programmable synthesizer loops is reporting an out-of-lock condition.

Not used. 13 04 57 08 STATUS Message NO ALARMS PRESENT

Synthesizer Out-of-Lock

0080 0000 Major The system is reporting that it has not been calibrated. Factory calibration is required for proper radio operation. Radio Not Calibrated 26 Installation and Operation Guide MDS 05-3624A01, Rev. A Table 8. Event Codes (Continued) Event Code Hex Value Event Class Description 09 10 11 12 13

Not used. 0020 0000 Major The internal microcontroller was unable to properly program the system to the appropriate EEPROM defaults. A hardware problem may exist.

Not used. 0008 0000 Major Receiver time-out. No data received within the specified receiver time-out time. 0004 0000 Major Transmitter time-out. The radio was keyed for a duration exceeding the time-out timer setting. (This alarm clears the next time the radio keys.) 1416

Not used. 17 0000 4000 Minor 18 0000 2000 Minor A data parity fault has been detected on the DATA INTERFACE connector. This usually indicates a parity setting mismatch between the radio and the RTU. A data framing error has been detected on the DATA INTERFACE connector. This may indicate a baud rate mismatch between the radio and the RTU. STATUS Message

EEPROM Write Failure

Receiver time-out Transmitter time-out

Data Parity Error Data Framing Error 1930

Not used.

MDS 05-3624A01, Rev. A Installation and Operation Guide 27 7.0 TECHNICAL REFERENCE 7.1 OEM-L/ss Transceiver Specifications This section con-

forms with the specs literature Kevin sent me. Is there anything to add for this manual? ---Van MODELS MDS OEM-L2:

MDS OEM-L4:

MDS OEM-L9:

MDS OEM-SS9:

ENVIRONMENTAL Temperature Range:

Humidity:

Board Dimensions:

Weight:

RF Connector:

TRANSMITTER Power Output:

Output Impedance:

Frequency Stability:

Transmitter Duty Cycle:

RECEIVER Licensed 220 MHz Transceiver Licensed 400 MHz Transceiver Licensed 900 MHz Transceiver Frequency Hopping Spread Spectrum 900 MHz Transceiver 30 to 60 degrees C 95% at 40 degrees C 0.65 H x 4.60 W x 4.25 D 2 cm H x 11.7 cm W x 10.7 cm D 0.2 pounds 0.09 kilograms BNC 2 watts (+33 dBm)

[1 watt (+30 dBm) for FHSS version]

50 1.5 ppm 50%

Type:

Sensitivity:

Adjacent Channel Performance:

Double conversion superheterodyne

-108 dBm @ 1 x 10-6 BER 60 dB EIA DATA CHARACTERISTICS Throughput:

Port Speed:

Parity:

Modem:

DIAGNOSTICS 9600 bps 1200, 2400, 4800, 9600, 19200 bps programmable 7/8 bit with or without Parity ASYNC Digital CPFSK Self Test:

Local RS-232 RSSI and Setup:

4 LED Display:

Yes Yes RS, TX, CD, and PWR PRIMARY POWER The specs literature Kevin sent me does not include 19200 bps, though it is in the specs document I was given. Has this changed? ---Van Please verify primary power specs. Voltage:

TX Supply Current:

10 to 30 Vdc 1.5 amps max 28 Installation and Operation Guide MDS 05-3624A01, Rev. A RX Supply Current:

Fuse:

Reverse Polarity Protection:

Operation< 60 mA (nominal) Standbypowered off (recovery time to receive 75 ms) 4 amp polyfuse, self-resetting, internal

(remove preimary power to reset) Diode across primary input 7.2 Bench Testing Setup Figure 11 shows a sample test setup that can be used to verify the basic operation of transceivers in a shop setting. The test can be performed with any number of remote radios by using a power divider with the required number of output connections. The RTU simulator shown in the test setup (MDS Part No. 03-2512A01) is a microcontroller that emulates a remote terminal unit operating at 1200, 2400, 4800, or 9600 bps. Custom software is supplied with the RTU simulator that allows continuous polling of remote radios using an IBM-compatible personal computer. The software reports the number of polls sent, polls received, and the number of errors detected. NOTE: It is very important to use attenuation between all units in the test setup. The amount of attenuation required will depend on the number of units being tested and the desired signal strength

(RSSI) at each transceiver during the test. In no case should a signal greater than 50 dBm be applied to any transceiver in the test setup. Invisible place holder COMPUTER RUNNING MDS POLL.EXE PROGRAM RTU SIMULATORS MDS P/N 03-2512A01 REMOTE L/ss REMOTE L/ss REMOTE L/ss POWER DIVIDER NON-RADIATING ATTENUATOR Install on any unused divider ports 5W minimum rating REMOTE L/ss MASTER STATION POWER ATTENUATORS Fixed or adjustable 5W minimum rating Figure 11. Typical setup for bench testing of radios MDS 05-3624A01, Rev. A Installation and Operation Guide 29 7.3 Helical Filter Adjustment If the operating frequency of the radio is changed significantly, the helical filters should be adjusted for maximum received signal strength

(RSSI). To adjust the filters, proceed as follows:

1. For enclosed units, remove the top cover from the transceiver by loosening the four screws and lifting straight up. 2. Locate the helical lters on the PC board. See Figure 12. 3. Apply a steady signal to the radio at the programmed receive fre-

quency (80 dBm level recommended; no stronger than 60 dBm). This can be done with a signal generator or an over-the-air signal. 4. Measure the radios RSSI using one of the following methods:

With an HHT (See Section 5.0, TRANSCEIVER PROGRAM-

MING on page 14). With MDS Radio Configuration Software (See Section 7.4, Upgrading the Radios Software on page 31). With a voltmeter connected to Pin 21 of the DATA INTERFACE connector (See Section 4.2, RSSI Measurement on page 16). 5. With a non-metallic adjustment tool, adjust each section of the helical lter for maximum RSSI. Re-install the cover to the trans-

ceiver. I am sure this figure needs changing. Can I call the helical adjustments out from the front cover image? Or do you want a diagram?

---Van FRONT PANEL OF RADIO Invisible place holder U104 U101 SHIELD COVER U202 U203 HELICAL ADJUSTMENTS J301 Figure 12. Helical Filter Location 30 Installation and Operation Guide MDS 05-3624A01, Rev. A 7.4 Upgrading the Radios Software From time to time, new product features or software maintenance files may become available from MDS. This section describes the steps nec-

essary to install new software into the transceiver using a PC connected to the radios DATA INTERFACE port. Upgrade software can be obtained in a number of ways. The MDS Web site at www.microwavedata.com contains an FTP area with software files for several radio models. You can browse the listings to see if there are files pertaining to your particular model. There is no charge for this service. In addition, you can also contact MDS to request radio software. Soft-

ware files can be sent to you via e-mail or on a 3.5 diskette. There may be a nominal charge for the software depending on the nature of the upgrade. NOTE: Software upgrades are distributed as ASCII files with a .S28 extension. These files use the Motorola S-record format. Using the Radio Software Upgrade Diskette A software upgrade diskette may be purchased from MDS to add new product features to the radio. The upgrade kit includes a diskette (MDS P/N 06-3501A01) with the most current radio software and an instruc-

tion booklet. Contact MDS for ordering information. When calling, please have the serial number(s) available for the radio(s) that you wish to upgrade. The upgrade software can be run on an IBM-compatible computer con-

nected to the radios DATA INTERFACE port via a DB-9 to DB-25 adapter

(MDS P/N ??-????A??). If desired, an adapter cable may be constructed from scratch using the information shown in Figure 13. Invisible place holder DB-25 MALE

(TO RADIO) 2 3 7 TXD RXD GND DB-9 FEMALE

(TO COMPUTER) RXD 2 TXD GND 3 5 Figure 13. DB-25 to DB-9 Adapter Cable To initiate the upgrade, insert the upgrade diskette in Drive A:. Set the working directory to A: (example: from a DOS prompt type A:\). Next, type UPGRADE and press the ENTER key. (If you have the radio connected via the Com2 serial port, type UPGRADE-2 instead.) The upgrade soft-

ware will normally run automatically without any further prompts. Please verify the dia-

gram. ---Van MDS 05-3624A01, Rev. A Installation and Operation Guide 31 The radios PWR LED will flash rapidly to confirm that a download is in process. The download takes about two minutes. NOTE: If a software download fails, the radio is left unprogrammed and inoperative. This is indicated by the PWR LED flashing slowly (1 second on, 1 second off). This condition is only likely if a power failure occurred to the computer or radio during the downloading process. The download can be attempted again when the fault has been corrected. Using Radio Configuration Software If you already have software that you wish to download into the trans-

ceiver, Radio Configuration Software (MDS P/N 03-3156A01) may be used to perform the installation. To use this method, proceed as follows:

Connect a PC to the radios DATA INTERFACE port via a DB-9 to DB-25 adapter (MDS P/N ??-????A??). If desired, an adapter cable may be con-

structed from scratch using the information shown in Figure 13. Run the Radio Configuration software. Under the SYSTEM menu, select RADIO SOFTWARE UPGRADE . Follow the prompts and online instructions to locate the desired software and complete the upgrade. The radios PWR LED will flash rapidly to confirm that a download is in process. The download takes about two minutes. NOTE: If a software download fails, the radio is left unprogrammed and inoperative. This is indicated by the PWR LED flashing slowly (1 second on, 1 second off). This condition is only likely if a power failure occurred to the computer or radio during the downloading process. The download can be attempted again when the fault has been corrected. 32 Installation and Operation Guide MDS 05-3624A01, Rev. A 7.5 dBm-Watts-Volts Conversion Chart Table 9 is provided as a convenience for determining the equivalent wattage or voltage of an RF power expressed in dBm. Table 9. dBm-Watts-Volts Conversionfor 50 Ohm Systems 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 70.7 100W 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 6.4W 18.0 16.0 5W 4W 14.1 3.2W 12.5 2.5W 11.5 2W 10.0 1.6W 9.0 8.0 1.25W 1.0W 7.10 800mW 6.40 640mW 5.80 500mW 5.00 400mW 4.45 4.00 320mW 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 20mW 1.00

.90 16mW 12.5mW

.80 10mW

.71 8mW

.64 6.4mW

.58 5mW

.500

.445 4mW 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 2.9

-98

-99 2.51 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

-114 400

-115

-116 355 325

-117 285

-118 251

-119 225

-120 200

-121

-122 180 160

-123 141

-124 128

-125 117

-126 100

-127

-128 90 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

-65 115

-66

-67 100 90

-68 80

-69 71

-70 65

-71 58

-72

-73 50 45

-74 40

-75 35

-76 32

-77 29

-78

-79 25 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 6.1

-91

-92 5.75 5.0

-93 4.5

-94 4.0

-95 3.51

-96

-97 3.2 MDS 05-3624A01, Rev. A Installation and Operation Guide 33 34 Installation and Operation Guide MDS 05-3624A01, Rev. A INDEX A ACCESS DENIED error message 18 Accessories 5 Accessory Power pinout (Pin 18) 13 Alarms alarm code denitions 26 major vs. minor 26 pinout (Pin 25) 13 using STAT command to display 24 AMASK command 19 Antenna installation 8 RSSI command used to rene heading 14 system gain, dened 5 Yagi, illustrated 11 Antennas 1011, ??11 Applications 2 Multiple Address Systems (MAS) 2 point-to-multipoint system 2 point-to-point system 3 Auto-Open, pinout (Pin 23) 13 B BAUD command 20 Bench testing (radio performance), 29 Bit, dened 5 Bits-per-second. See BPS BPS (bits-per-second), dened 5 Byte, dened 5 C Cable, loss due to length of coaxial 11 COMMAND FAILED error message 17 Command summary, table 18 Commands AMASK (set/display alarm triggers) 19 BAUD (set/display rate, encoding) 20 CTS (set/display CTS line response timer) 20 DEVICE (set/display radio behavior) 21 DKEY (deactivate transmitter after KEY command) 21 entering on Hand-Held Terminal (HHT) 17 Hand-Held Terminal (HHT) 17 INIT (reinitialize radio to factory defaults) 22 KEY (activate transmitter) 22 OWM (set/display owners message) 22 OWN (set/display owners name) 22 PWR (set/display RF forward output power) 23 RSSI (display RSSI) 23 RX (set/display receive frequency) 23 RXTOT (set/display receive time-out timer value) 23 SER (display radio serial number 24 SREV (display software revision level) 24 STAT (display current alarm status) 24 TOT (set/display time-out value and timer status) 24 TX (set/display transmit frequency) 24 Connections for typical systems 2 Conversions, dBm-Watts-Volts 33 CTS command 20 CTS pinout (Pin 5) 12 D Data interface connector pinouts 12 installing connection 12 dB. See Decibel 6 dBi, dened 5 dBm, dened 6 DCD LED 14 pinout (Pin 8) 12 DCE (Data Cirtuit-terminating Equipment), dened 6 Decibel (dB), dened 6 Description, product 1 Detailed 19 DEVICE command 21 Diagnostic Channel Enable, pinout (Pin 23) 13 Diagnostics interface specications 28 PC software used for 31 Differences between models 1 Display alarm status (STAT command) 24 alarm triggers (AMASK command) 19 baud rate and encoding (BAUD command) 20 CTS line response timer (CTS command) 20 owners message (OWM command) 22 owners name (OWN command) 22 radio behavior (DEVICE command) 21 radio serial number (SER command) 24 receive frequency (RX command) 23 receive time-out timer value (RXTOT command) 23 RF forward output power (PWR command) 23 RSSI (RSSI command) 23 software revision level (SREV command) 24 time-out value and timer status (TOT command) 24 transmit frequency (TX command) 24 DKEY command 21 MDS 05-3624A01, Rev. A Installation and Operation Guide I-1 Downloading new software 31 DSR pinout (Pin 6) 12 DTE (Data Terminal Equipment), dened 6 E EEPROM FAILURE error message 18 Enable/disable diagnostic channel, pinout (Pin 23) 13 Environment specications 28 Equalization, dened 6 Error messages 17 access denied 18 command failed 17 EEPROM failure 18 incorrect entry 17 not available 17 not programmed 17 text too long 17 unknown command 17 F Fade margin, dened 6 Feedlines 11 Filter, helical, adjustment 30 Frame, dened 6 Frequency adjusting helical lter when changed 30 setting. See TX and RX commands G Glossary 5 Ground protective (Pin 1) 12 signal (Pin 7) 12 H Half-duplex 3 switched carrier operation 4 Hand-Held Terminal (HHT) 5 connected to transceiver, illustrated 15 connection and startup 15 display in response to STAT command, illustrated 26 entering commands 17 error messages displayed on 17 keyboard commands 17 operational settings, table 16 reinitialization display, illustrated 16 reinitializing 16 Hardware ow control, dened 6 Helical lter adjusting 30 illustration 30 Host computer, dened 6 I Illustrations antenna, Yagi 11 DB-25 to DB-9 adapter cable 31 Hand-Held Terminal (HHT) connected to transceiver 15 Hand-Held Terminal (HHT) reinitialization display 16 Hand-Held Terminal display in response to STAT command 26 helical lter locations 30 MAS network 3 MDS 2710A/D model number codes 4 point-to-point link 3 remote station arrangement 8 transceiver connectors & indicators 2 transceiver mounting dimensions 10 INCORRECT ENTRY error message 17 INIT command 22 Installation 813 antenna 8 conguring transceiver 9 DATA INTERFACE connection 9 data interface connections 12 power 8 power connection 11 quick start instructions. See inside front cover steps 8 K KEY command 22 Keying continuously keyed versus switched carrier operation 4 on data (DKEY command) 21 switched carrier, dened 4 L Latency, dened 6 LEDs DCD 14 indicators, described 14 PWR 14 RXD 14 RXD, Pin 3 12 status indicators, illustrated 14 TXD 14 TXD, Pin 2 12 Loss. See Signal M MAS (Multiple Address System) 2 dened 6 illustration 3 Master Station dened 6 keying behavior 4 I-2 Installation and Operation Guide MDS 05-3624A01, Rev. A MDS. See Microwave Data Systems 7 Microwave Data Systems, contacting 7 Model number codes 4 MDS 2710A/D, illustrated 4 N NOT AVAILABLE error message 17 NOT PROGRAMMED error message 17 O Operation 13??

environment, specications for 28 Output, 5.8 Vdc regulated, pinout (Pin 19) 13 OWM command 22 OWN command 22 Owners message, set/display. See OWM command Owners name, set/display. See OWN command P Packaging for shipment. See inside rear cover Payload data (dened) 7 Performance testing, 29 Pinouts on data interface 12 PLC (Programmable Logic Controller), dened 7 Point-to-multipoint dened 7 system 2 Point-to-point link, illustrated 3 system 3 Poll, dened 7 Power connection 11 installing 8 LED status indicator (PWR LED) 14 RF, chart for converting dBm-Watts-Volts 33 Power attenuators, use of in testing 29 Procedures checking for alarms (STAT command) 25 connecting Hand-Held Terminal (HHT) 15 downloading new software 31 entering commands using the Hand-Held Terminal (HHT) 17 helical lter adjustment 30 installation 8 operation 13 performance optimization 14 reading LED status indicators 14 resetting Hand-Held Terminal (HHT) 16 troubleshooting 25??

Product accessories 5 description 1 display radio serial number (SER command) 24 model number codes 4 returning for service. See inside rear cover Programming, transceiver 1418 PWR command 23 LED 14 Q Quick start instructions. See inside front cover R Radio Conguration Software 5, 31 serial number, displaying (SER command) 24 Receive Audio Output pinout (Pin 11) 13 Received signal strength indication See RSSI 7 Receiver specications 28 Redundant operation, dened 7 Remote Station, dened 7 Station, illustrated 8 Resetting Hand-Held Terminal (HHT) (SHIFT,CTRL,SPACE keys) 16 transceiver (INIT command) 22 Revision level display software (SREV command) 24 RMA number (returning product for service). See inside rear cover RSSI adjusting helical lter for increased signal strength 30 command 23 command, used to rene antenna heading 14 dened 7 RTS pinout (Pin 4) 12 RTU (Remote Terminal Unit) dened 7 RTU simulator, 29 RX command 23 RXD LED description 14 Pin 3 12 RXTOT command 23 S SCADA (Supervisory Control And Data Acquisition), dened 7 SER command 24 Set alarm triggers (AMASK command) 19 receive time-out timer value (RXTOT command) 23 Signal ground (Pin 7) 12 loss due to coaxial cable length, table 11 Simplex 3 single-frequency operation 4 special case of switched carrier operation 4 Software MDS 05-3624A01, Rev. A Installation and Operation Guide I-3 U UNKNOWN COMMAND error message 17 diagnostics and control used from PC 31 display revision level 24 upgrades (.S28 les) 31 upgrading 31 used for diagnostics and programming 14 Specications diagnostics interface 28 environment 28 receiver 28 transceiver 2829 transmitter 28 transmitter system 28 SREV command 24 STAT command 24 SWR (Standing Wave Radio), dened 7 T Tables accessories 5 alarm code denitions 26 command summary 18 conversions, dBm-Watts-Volts 33 data interface connector pinouts 12 Hand-Held Terminal (HHT) operational settings 16 LED status indicators 14 length vs. loss in coaxial cables 11 Technical reference 2833 Technical reference, bench test setup, 29 Testing. See bench testing TEXT TOO LONG error message 17 Timer, set/display time-out value and status (TOT command) 24 TOT command 24 Transceiver applications 2 conguring for operation 9 connectors and indicators, illustrated 2 diagnostics using PC software 31 dimensions, mounting 10 mounting 8 mounting enclosed version 10 mounting standalone board 9 programming 1418 specications 2829 upgrading software 31 Transmitter specications 28 system specications 28 Troubleshooting 25??

connecting Hand-Held Terminal (HHT) for displaying alarm codes 15 returning product for service. See inside rear cover STAT command (Status) 25 using PC software for 31 TX command 24 TXD LED description 14 Pin 2 12 I-4 Installation and Operation Guide MDS 05-3624A01, Rev. A NOTES I-5 Installation and Operation Guide MDS 05-3624A01, Rev. A I-6 Installation and Operation Guide MDS 05-3624A01, Rev. A 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 informa-

tion will assist you in the event that servicing becomes necessary. FACTORY TECHNICAL ASSISTANCE Technical assistance for MDS products is available from our Customer Support Team 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 expe-

riencing. 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:

716-242-9600 (Phone) 716-242-9620 (FAX) 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. 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:

Adaptive Broadband Corporation 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. 175 Science Parkway, Rochester, New York 14620 General Business: +1 (716) 242-9600 FAX: +1 (716) 242-9620 World Wide Web: http://www.mdsroc.com/