FCC ID: W6U150V450U RDU MODULE(VHF/UHF)

SMDR-NH124 Installation and Operation Manual Document Reference:

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V1.0 Release 1 Jan. 02, 2009 Kyung Eun Han R&D Division Team 1 Youngshin Yeo Confidential & Proprietary 1/99 REVISION HISTORY Version Issue Date No. of Pages V 1.0 V 2.0 Jan. 02, 2009 Oct. 23. 2009 Initials Details of Revision Changes Original Additional RDU(VHF+UHF) Technical Support SOLiD serial numbers must be available to authorize technical support and/or to establish a return authorization for defective units. The serial numbers are located on the back of the unit, as well as on the box in which they were delivered. Additional support information may be obtained by accessing the SOLiD Tehcnology, Inc. website at www.st.co.kr or send email at sjkim@st.co.kr This manual is produced by Global Business Division Business Team 1. Printed in Korea. Confidential & Proprietary 2/99 Contents Section1 Safety & Certification Notice................................................................... 8 Section2 System Overview ................................................................................... 10 2.1 General overview ......................................................................................... 11 2.2 System overview.......................................................................................... 12 Section3 System Specifications........................................................................... 14 3.1 System specifications ................................................................................. 15 3.1.1 Physical Specifications......................................................................... 15 3.1.2 Optic wavelength and Laser power...................................................... 16 3.1.3 Environmental specifications ............................................................... 16 3.1.4 Operating Frequencies range............................................................... 16 3.1.5 Specifications Per band ........................................................................ 17 Section4 System Configuration and Functions.................................................. 22 4.1 BIU (BTS Interface Unit) .............................................................................. 22 4.1.1 Specifications of BIU............................................................................. 22 4.1.2 Block diagram of BIU............................................................................. 23 4.1.3 BIU parts ................................................................................................. 23 4.1.4 Function by unit..................................................................................... 24 4.1.5 Front/rear panels of BIU ........................................................................ 28 4.2 ODU (Optic distribution Unit)...................................................................... 30 4.2.1 Specifications of ODU ........................................................................... 31 4.2.2 Block Diagram of ODU .......................................................................... 31 4.2.3 ODU parts ............................................................................................... 32 4.2.4 Function by unit..................................................................................... 33 Front/rear panels of MHU ...................................................................... 34 4.2.5 4.2.6 Interface with BIU .................................................................................. 35 4.3 OEU (Optic Expansion Unit)........................................................................ 36 4.3.1 Specifications of OEU ........................................................................... 37 4.3.2 Block Diagram of OEU........................................................................... 37 4.3.3 OEU parts ............................................................................................... 37 Function by unit..................................................................................... 38 4.3.4 4.3.5 Front/rear panels of OEU ...................................................................... 42 4.4 ROU (Remote Optic Unit) ............................................................................ 43 Confidential & Proprietary 3/99 4.4.1 Specifications of ROU ........................................................................... 43 4.4.2 Block Diagram of ROU .......................................................................... 44 4.4.3 ROU parts ............................................................................................... 44 4.4.4 Function by unit..................................................................................... 46 4.4.5 Bottom of ROU....................................................................................... 50 Section5 System Installation & Operation........................................................... 52 5.1 BIU Installation............................................................................................. 53 5.1.1 BIU Shelf Installation ............................................................................. 53 5.1.2 BIU Power Cabling................................................................................. 54 5.1.3 RF Interface at BIU................................................................................. 55 5.1.4 MDBU insertion...................................................................................... 59 5.1.5 ODU Interface......................................................................................... 60 5.1.6 Consumption Power of BIU .................................................................. 62 5.2 ODU Installation ........................................................................................... 63 5.2.1 ODU Shelf Installation ........................................................................... 63 5.2.2 ODU Power Cabling............................................................................... 63 5.2.3 ODU Optic Cabling................................................................................. 63 5.2.4 Insert DOU to ODU................................................................................. 64 5.2.5 Consumption Power of ODU................................................................. 65 5.3 ROU Installation ........................................................................................... 65 5.3.1 ROU Enclosure installation................................................................... 65 5.3.2 ROU Power Cabling............................................................................... 65 5.3.3 Optical Cabling ...................................................................................... 65 5.3.4 Insertion of RDU..................................................................................... 65 5.3.5 Consumption of RDU............................................................................. 65 5.4 OEU Installation ........................................................................................... 65 5.4.1 OEU Shelf installation ........................................................................... 65 5.4.2 OEU Power Cabling ............................................................................... 65 5.4.3 OEU Optic Cabling................................................................................. 65 5.4.4 Insert DOU to OEU................................................................................. 65 5.4.5 Consumption Power of OEU................................................................. 65 5.5 System Operation and Alarm Status.......................................................... 65 Section6 Operation................................................................................................ 65 6.1 BIU Operation............................................................................................... 65 6.1.1 BIU........................................................................................................... 65 Confidential & Proprietary 4/99 6.1.2 TX Operation at BIU............................................................................... 65 6.1.3 RX Operation at BIU............................................................................... 65 6.1.4 Setting whether to use ROU/OEU at BIU ............................................. 65 6.1.5 ODU Operation at BIU............................................................................ 65 6.2 ROU Operation ............................................................................................. 65 6.2.1 ROU Operation....................................................................................... 65 Confidential & Proprietary 5/99 Contents of Figure Figure 2.1 Basic system topology ........................................................... 12 Figure 2.2 Expansion system topology................................................... 13 Figure 4.1 BIU outer view ......................................................................... 22 Figure 4.2 BIU mounting diagram............................................................ 23 Figure 4.3 MDBU Outer Look ................................................................... 26 Figure 4.4 MDBU Outer Look ................................................................... 26 Figure 4.5 MCCU Outer Look ................................................................... 27 Figure 4.6 MPSU Outer Look.................................................................... 28 Figure 4.7 BIU front panel Outer Look..................................................... 29 Figure 4.8 Rear panel Outer Look............................................................ 30 Figure 4.9 ODU Outer Look ...................................................................... 31 Figure 4.10 ODU Inner Look..................................................................... 32 Figure 4.11 MDBU Outer Look.................................................................. 33 Figure 4.12 2Way Divider Outer Look...................................................... 33 Figure 4.13 BIU front panel Outer Look................................................... 34 Figure 4.14 Rear panel Outer Look.......................................................... 34 Figure 4.15 Interface between MHU and ODU ........................................ 35 Figure 4.16 OEU Outer Look .................................................................... 36 Figure 4.17 OEU Inner Look ..................................................................... 38 Figure 4.18 MDBU Outer Look ................................................................. 39 Figure 4.19 EWDM Outer Look................................................................. 39 Figure 4.20 ECPU Outer Look .................................................................. 40 Figure 4.21 ERFM Outer Look.................................................................. 40 Figure 4.22 ERFM Outer Look.................................................................. 41 Figure 4.23 OEU front panel Outer Look................................................. 42 Figure 4.24 Rear panel Outer Look.......................................................... 42 Figure 4.25 ROU Outer Look .................................................................... 43 Figure 4.26 ROU Inner Look..................................................................... 44 Figure 4.27 RDU Outer Look .................................................................... 47 Figure 4.28 R OPTIC Outer Look.............................................................. 48 Figure 4.29 RCPU Outer Look.................................................................. 49 Figure 4.30 Multiplexer Outer Look ......................................................... 49 Figure 4.31 RU Bottom Look.................................................................... 50 Figure 5.1 RACK Installation .................................................................... 53 Confidential & Proprietary 6/99 Figure 5.2 800PS BDA Interface using Circulator .................................. 58 Figure 5.3 800PS BDA Interface using Duplexer.................................... 59 Figure 5.4 Optical cable of SC/ACP Type................................................ 64 Figure 5.5 How to install ROU .................................................................. 65 Figure 5.6 Dimension used to install ROU on the WALL....................... 65 Figure 5.7 Optical cable of SC/ACP Type................................................ 65 Confidential & Proprietary 7/99 Section1 Safety & Certification Notice Confidential & Proprietary 8/99 Only qualified personnel are allowed to handle this unit. Read and obey all the warning labels attached in this user manual Any personnel involved in installation, operation or service of the SOLiD Technology repeaters must understand and obey the following:

- Obey all general and regional installation and safety regulations relating to work on high voltage installations, as well as regulations covering correct use of tools and personal protective equipment.

- The power supply unit in repeaters contains dangerous voltage level, which can cause electric shock. Switch the mains off prior to any work in such a repeater. Any local regulations are to be followed when servicing repeaters.

- The repeater cover should be (door) securely fastened in open position, e.g. by tying it up, at outdoor work in order to prevent door from slamming due to wind causing bodily harm or damage.

- Use this unit only for the purpose specified by the manufacturer. Do not carry out any modifications or fit any spare parts which are not sold or recommended by the manufacturer. This could cause fires, electric shock or other injuries.

- Any repeater, including this repeater, will generate radio signals and thereby give rise to electromagnetic fields that may be hazardous to the health of any person who is extensively exposed to the signals at the immediate proximity of the repeater and the repeater antennas.

- Due to power dissipation, repeater may reach a very high temperature. Do not operate this unit on or close to flammable materials.

- Do not use any solvents, chemicals, or cleaning solutions containing alcohol, ammonia, or abrasives.

- Certification

FCC: This equipment complies with the applicable sections of Title 47 CFR Parts 15,22,24 and 90

UL/CUL: This equipment complies with UL and CUL 1950-1 Standard for safety for information technology equipment,including electrical business equipment

FDA/CDRH: This equipment uses a Class 1 LASER according to FDA/CDRH Rules.This product conforms to all applicable standards of 21 CFR Chapter 1, Subchaper J, Part 1040 Confidential & Proprietary 9/99 Section2 System Overview 2.1 General overview 2.2 System overview Confidential & Proprietary 10/99 2.1 General overview SMDR-NH124 is a coverage system for in-building services delivering voice and data in high quality and for seamlessly. As a distributed antenna system, it provides analog and digital phone systems that are served in multiple bands through one antenna. The system covers general public institutions and private facilities.

Shopping malls

Hotels

Campus areas

Airports

Clinics

Subways

Multi-use stadiums, convention centers, etc. The system helps improve in-building radio environments in poor condition and make better poor RSSI and Ec/Io. By providing communication services at every corner of buildings, the system enables users to make a call at any site of buildings. The system uses both analog (AMPS) and digital (TDMA, CDMA and WCDMA) methods. The SMDR-NH124 system supports communication standards and public interface protocols in worldwide use.

Frequencies: VHF,UHF, 700MHz, 800MHz,850MHz 900MHz,1900MHz,2100MHz, etc.

Voice protocols: AMPS,TDMA, CDMA,GSM,IDEN, etc.

Data protocols: EDGE,GPRS,WCDMA,CDMA2000,Paging, etc. SMDR-NH124 is in modular structure per frequency. To provide desired frequency in a building, all you need to do is to insert a corresponding frequency module into each unit. As it delivers multiple signals with one optical cable, the system, in one-body type, does not require additional facilities whenever new frequency is added. The system is featured with the following:

Flexibiltiy & Scalabiltiy

Support fiber-optic ports up to 39

Clustering multiple-buildings (campus) as one coverage Modular structures

Modular frequency upgrade

Plug-in type module

Multi-Band, Multi Operator Confidential & Proprietary 11/99

Signals with a plurality of service provider transmit simultaneously

Support multi-operator in a band

Low OPEX / CAPEX

Compact design

Upgradable design

Easy installation and maintenance

Web Based SNMP or GSM Modem or UDP support (Optional) 2.2 System overview SMDR-NH124 is composed of devices given below. Basically, the system consists of BIU (BTS Interfcace Unit), ODU (Optic distribution Unit) and ROU (Remote Optic Unit). For addition of more ROUs, it has OEU (Optic Expansion Unit). Figure 2.1 Basic system topology Confidential & Proprietary 12/99 Figure 2.2 Expansion system topology Table 3.1 System topology Charts System elements Optical Loss [dBo]

Max. RUs BIU ODU(DOUx1) ROU BIU ODU(DOUx2) ROU BIU 4ODU(DOUx2) ROU BIU 4ODU(DOUx2)-OEU(DOUx2) ROU 1~5dBo 1~5dBo 1~5dBo 1~5dBo 4 8 32 39 Confidential & Proprietary 13/99 Section3 System Specifications 3.1 System specifications 3.1.1 3.1.2 3.1.3 3.1.4 3.1.5 Physical Specifications Optic wavelength and Laser power Environmental specifications Operating Frequencies range Specifications Per band Confidential & Proprietary 14/99 3.1 System specifications 3.1.1 Physical Specifications Parameter BIU ODU OEU ROU

1 RS-232 9-pin D-sub, male 1 SC/APC for ODU 8 SC/APC for ROU EWDM Status LD status

PD status DOU1 Status

DOU2 Status

System status

LD status PD1/2/3/4 status LD status PD1/2/3/4 status Power on status TX Communication RX Communication

48W

(Including DOU2EA) 482.6(19) x 88.1(2U) x 450 9.3Kg 1N-type,female

1 RS-232 9-pin D-sub, male 1 SC/APC for ODU System status

Power on status TX1 Communication RX1 Communication TX2 Communication RX2 Communication ALM status

Range:

Normal 120VAC 50/60Hz Operating range 108~132VAC,50/60Hz Normal: -48 VDC Operating range:

-40.8 ~ -57.6VDC 265W

(Including RDU 3EA) 420 x 530 x 258 35.45Kg RF Connectors 4 SMA type, female

(Per MDBU) 2 SMA type, female External connector

(Dry contacts) Serial connector Alarm Terminal block,3pcs

Interface 1 RS-232 9-pin D-sub, male Fiber connector

8pcs, SC/APC ROU for LED Alarm and Status Indicator Power On status ALM status MDBU Status

MCPU

Power On status TX Communication RX Communication ALM status

MPSU

Power On status DC ALM status DOU1 Status

LD status PD1/2/3/4 status DOU2 Status

LD status PD1/2/3/4 status AC Power

DC Power Power consumption Enclosure Dimensions Weight[Full Load]

Normal range: -48 VDC Operating range:

-40.8 ~ -57.6VDC 168W

(Including ODU 4EA) 482.6(19) x 221.5(5U) x 450 22.25Kg

x 482.6(19) 43.6(1U) x 450 5.7Kg Confidential & Proprietary 15/99 3.1.2 Optic wavelength and Laser power Parameter ODU OEU ROU Wavelength TX: 1310nm RX: 1550nm West optic TX: 1550nm RX: 1310nm East optic TX: 1310nm RX: 1550nm TX: 1550nm RX: 1310nm Output power 3dBm1dBm to ROU,OEU 3dBm1dBm to ROU 7dBm1dBm to ODU 7dBm1dBm to ODU 3.1.3 Environmental specifications Parameter BIU, ODU, OEU ROU Operating Temperature

-10 to +50C Operating Humidity, non condensing

-10 to +50C 5% to 90%

3.1.4 Operating Frequencies range Standard Unit naming Description iDEN iDEN Cellular Iden Paging PCS AWS-1

700P 800P 850C 900I 900 PA 1900P AWS-1 VHF UHF Frequency range TX(MHz) RX(MHz) 764 to 776 851 to 869 869 to 894 929 to 940 929 to 930 794 to 806 806 to 824 824 to 849 896 to 902 896 to 902 1930 to 1995 1850 to 1915 2110 to 2155 1710 to 1755 Public safety Public safety Cellular SMR Paging PCS AWS-1 Public safety Public safety 136 to 174 396 to 512 136 to 174 396 to 512 Confidential & Proprietary 16/99 3.1.5 Specifications Per band 700MHz Public safety Parameters Bandwidth System ripple Input Power level Output power System Gain Gain Control range IM3 IP3 Noise figure 800MHz Public safety Parameters Bandwidth System ripple Input Power level Output power System Gain Gain Control range IM3 IP3 Noise figure Typical TX RX 12MHz

4dB 12MHz

4dB

-20 to +10dBm

-50dBm

+23dBm 43dB

+0dBm 50dB 18 to 43dB 30 to 50dB

-13dBm

+23dBm 15dB Typical TX RX 18MHz

4dB 18MHz

4dB

-20 to +10dBm

-50dBm

+23dBm 43dB

+0dBm 50dB 18 to 43dB 30 to 50dB

-13dBm

+23dBm 15dB Remarks Total 1ROU Remarks Total 1ROU Confidential & Proprietary 17/99 850MHz Cellular Parameters Bandwidth System ripple Input Power level Output power System Gain Gain Control range IM3 IP3 Noise figure 900MHz iDEN & Paging Parameters Bandwidth System ripple Input Power level Output power System Gain Gain Control range IM3 IP3 Noise figure Typical TX RX 25MHz

4dB 25MHz

4dB

-20 to +10dBm

-50dBm

+23dBm 43dB

+0dBm 50dB 18 to 43dB 30 to 50dB

-13dBm

+23dBm 15dB Typical TX RX 12MHz

4dB 6MHz

4dB

-20 to +10dBm

-50dBm

+23dBm 43dB

+0dBm 50dB 18 to 43dB 30 to 50dB

-13dBm

+23dBm 15dB Remarks Total 1ROU Remarks Total 1ROU Confidential & Proprietary 18/99 1900MHz PCS Parameters Bandwidth System ripple Input Power level Output power System Gain Gain Control range IM3 IP3 Noise figure 1700MHz&2100MHz AWS-1 Parameters Bandwidth System ripple Input Power level Output power System Gain Gain Control range IM3 IP3 Noise figure Typical TX RX 65MHz

5dB 65MHz

5dB

-20 to +10dBm

-50dBm

+26dBm 46dB

+0dBm 50dB 21 to 46dB 30 to 50dB

-13dBm

+23dBm 15dB Typical TX RX 45MHz

5dB 45MHz

5dB

-20 to +10dBm

-50dBm

+26dBm 46dB

+0dBm 50dB 21 to 46dB 30 to 50dB

-13dBm

+23dBm 15dB Remarks Total 1ROU Remarks Total 1ROU Confidential & Proprietary 19/99 150MHz VHF Public safety Parameters Bandwidth ripple Input Power level Output power Gain Gain Control range IM3 IP3 Noise figure 450MHz UHF Public safety Parameters Bandwidth ripple Input Power level Output power Gain Gain Control range IM3 IP3 Noise figure Typical TX RX Remarks 38MHz

3dB

-18dBm

+24dBm 42dB 38MHz

3dB

-54dBm

-1dBm 53dB 17to 42dB 8 to 53dB

-13dBm

+23dBm 7dB Total 1ROU Typical TX RX 116MHz 116MHz

3dB

-14dBm

+24dBm 38dB

3dB

-54dBm

-6dBm 48dB 13 to 38dB 3 to 48dB

-13dBm

+23dBm 7dB Remarks 54MHz, 62MHz Band selection Total 1ROU Confidential & Proprietary 20/99 Confidential & Proprietary 21/99 Section4 System Configuration and Functions 4.1 BIU (BTS Interface Unit) 4.2 ODU (Optic distribution Unit) 4.3 OEU (Optic Expansion Unit 4.4 ROU (Remote Optic Unit) Confidential & Proprietary 22/99 4.1 BIU (BTS Interface Unit) BIU provides TX signals from BTS or BDA for four ODUs (Optic Distribution Unit). This unit separates RX signals given from ODUs from each other per frequency band. Figure 4.1 BIU outer view 4.1.1 Specifications of BIU Item Size Weight Power consumption Spec. 482.6(19) x 221.5(5U) x 450 22.35 Kg 168 W Remark Mm Full Load Confidential & Proprietary 23/99 4.1.2 Block diagram of BIU 4.1.3 BIU parts Figure 4.2 BIU mounting diagram No. Unit 1 MDBU Description Main Drive BTS Unit Amplify & adjust downlink RF signal Amplify & adjust uplink RF signal Remark Max 4EA Confidential & Proprietary 24/99 2 MCDU 3 MCPU Main Com/Div Unit Combine 4EA downlink signal and divide 4EA signal to ODU Combine 4EA uplink signal and divide 4EA signal to MDBU Support VHF/UHF interface port Main Central Processor Unit Control and monitoring system status Control and monitoring with RS232 Have an access to upper-level network through GSM or Ethernet 4 MPSU Main Power Supply Unit Input power: DC -48V, Output power: 9V, 6V 5 M/B Mother Board Provide signal interface and power for each unit Provide three ports for dry contact 6 Shelf 19 inch, 5U 4.1.4 Function by unit 1) Main Drive BTS Unit (MDBU) MDBU delivers TX signals of BTS or BDA to related devices and then delivers RX signals of the devices to BTS or BDA. This unit can monitor TX input level. Using input AGC function, it automatically adjusts input ATT. It also has ATT to adjust RX gain. MDBU is varied per frequency band including the following:

No Unit naming Description In/out RF Port TX RX 1 2 3 4 5 6 7 800PS 850C 1900P AWS-1 800PS+900I+PA 850C+700PS TBD Single Band Single Band Single Band Single Band Dual Band Dual Band 2 Port 2 Port 4 Port 4 Port 4 Port 4 Port 2 Port 2 Port 4 Port 4 Port 4 Port 4 Port Confidential & Proprietary 25/99 800PS 800PS+900I+Paging 1900PCS AWS-1 Confidential & Proprietary 26/99 850C 850C+700PS Figure 4.3 MDBU Outer Look 2) Main Com/Div Unit (MCDU) MCDU combines TX signals that are delivered from MDBU per frequency band and delivers the signals to four ODUs. This unit adds signals of FSK modem to the TX signals before sending them to ROU. It also combines RX signals from up to four ODUs and sends them to up to four MDBUs. In this case, the unit extracts signals of FSK modems, which are sent in a combined form with RX signals, and then delivers the signals to MCU. The unit has a port to interface with VHF&UHF signals. It has ATT for input monitoring and input control. Figure 4.4 MDBU Outer Look Confidential & Proprietary 27/99 VHF+UHF frequency band including the following:

No Unit naming Description 1 VHF+UHF Dual Band In/out RF Port TX 1 Port RX 1 Port 3) Main Central Processor Unit (MCPU) MCPU can inquire and control state of modules that are installed in BIU. This unit can inquire and control state of four ODUs in total. Through communication, it also can inquire and control ROU that is connected with lower parts. In addition, the unit has RS-232C port for serial communication so that it can inquire and control state of devices through PC. On the front panel, it has communication LED indicator to check communication state with ROU. It also has ALM LED indicator to show whether a device gets faulty. For access to upper network, it has a port to insert Ethernet port and GSM modem in it. Figure 4.5 MCCU Outer Look In the Main Central Processor Unit, a lithium battery is installed for RTC (Real Time Control) function. CAUTION RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE DIPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS

[INSTRUCTION]

Confidential & Proprietary 28/99 The equipment and accessories including inner lithium battery are to be disposed of safely after the life span of them and national regulation must be observed. Do not attempt to replace the lithium battery unless service personnel confirmation has first been obtained, to avoid any risk of explosion. 4) Main Power Supply Unit (MPSU) MPSU receives -48V of input and outputs +6V and +9V of DC power. On the front panel, this unit has an output test port and it also has DC ALM LED Indicator to show whether output gets faulty. Figure 4.6 MPSU Outer Look 4.1.5 Front/rear panels of BIU 1) Front panel Confidential & Proprietary 29/99 Item 1. MDBU LED 2. RF Monitor Port 3. Alarm LED & Reset 4. NMS(RS-232C port) Figure 4.7 BIU front panel Outer Look Description LED to show whether MDBU is installed and gets faulty 20dB Coupling compared with TX Input Level 20dB Coupling compared with RX Output Level Communication state with devices, alarm status of the system and reset switch RS-232C port for communication and diagnosis of devices through PC/laptop Ethernet port for upper network 5. NMS(Ethernet port) This equipment is indoor use and all the communication wirings are limited to inside of the building 6. Pwr Test Port & ALM Output DC power test port and ALM LED to show abnormal state, if any 7. Power switch Power ON/OFF switch 2) Rear panel Confidential & Proprietary 30/99 Figure 4.8 Rear panel Outer Look Item 1. External ALM Port 2. GSM Modem Port 3. V/UHF I/O Port 4. ODU I/O Port 5. ODU signal Port 6. BTS/BDA I/O Port 7. GND Port 8. DC Input Port Description Input/output terminal for dry contact GSM Modem terminal for upper network (Optional) RF signal interface terminal of VHF&UHF RF signal interface terminal for ODU Power and signal interface terminal for ODU Input/output interface terminal of BTS/BDA System ground terminal Input terminal for DC -48V 4.2 ODU (Optic distribution Unit) ODU receives TX RF signals from upper BIU and converts them into optical signals. The optical signals are sent to ROU through optical cables. This unit converts optical signals from ROU into RF signals and sends the converted signals to BIU. For each shelf of the ODU, up to two DOUs (Donor Optic Unit) can be installed in it. One DOU is supported with four optical ports. Therefore, one ODU can be connected with eight ROUs. Up to four ODUs can be connected with BIU. Confidential & Proprietary 31/99 Figure 4.9 ODU Outer Look 4.2.1 Specifications of ODU Item Size Weight Power consumption Spec. 482.6(19) x 43.6(1U) x 450 5.7 Kg 27 W Remark Mm Full Load 4.2.2 Block Diagram of ODU Confidential & Proprietary 32/99

4.2.3 ODU parts Figure 4.10 ODU Inner Look No. Unit Description DOU Convert TX RF signals into optical signals;

Convert RX optical signals into RF signals;

Provide up to four optical ports per DOU 2Way Divider Divide TX RF signals into two;

Combine two RX RF signals into one Distribution Unit Distribute power and signals to DOU 19 rack, 1U Remark Max 2ea 1 DOU 2W DU Shelf 2 3 4 5 Accessories 15PIN DSUB, Male to female 1pcs RF Coaxial Cable Assembly 2pcs Confidential & Proprietary 33/99 4.2.4 Function by unit 1) Donor Optic Unit (DOU) DOU makes electronic-optical conversion of TX signals and makes optical-electronic conversion of RX signals. With an optic splitter in it, this unit divides optical signals from Laser Diode into four and then distributes them to each optical port. With a total of four Photo Diodes in RX, DOU makes optical-electronic conversion of signals received from each optical port. In addition, the unit is equipped with ATT for optical compensation made in case of optical cable loss. With internal WDM, it uses only one optical cable to be connected with ROU. Figure 4.11 MDBU Outer Look 2) 2Way Divider (2W) 2W is equipped with two 2-way splitters in a one-module form and the splitters work for TX/RX signals, respectively. Designed in broadband type, the divider combines and divides 2GHz or higher of signals from FSK modem signals. Figure 4.12 2Way Divider Outer Look Confidential & Proprietary 34/99 4.2.5 Front/rear panels of MHU 1) Front panel Figure 4.13 BIU front panel Outer Look Item Description 1,2 LED indicator to check DOU module state to see if it is abnormal 2) Rear panel Figure 4.14 Rear panel Outer Look Item 1. Optic Port 2. DC I/O Port 3. RX RF Port 4. TX RF Port Description SC/APC optical connector terminal; use one optical cable per ROU. Terminal to deliver power and state values RX RF signal interface terminal TX RF signal interface terminal Confidential & Proprietary 35/99 4.2.6 Interface with BIU Figure 4.15 Interface between MHU and ODU On the top of BIU, up to four ODUs can be stacked. In this case, it is recommended to stack the units at least 1U of an interval between BIU, for heat from BIU may climb up to ODU, which may cause flame. As seen in the figure below, connect the coaxial cable for TX and another coaxial cable for RX with corresponding ports at the rear of BIU. For power supply and communication, connect 15Pin D-Sub Connector cable with a corresponding port. Confidential & Proprietary 36/99 4.3 OEU (Optic Expansion Unit) OEU is mainly used to remotely deliver signals for Campus clusters. At the upper part, this unit combines with ODU and receives TX optical signals to convert them into RF signals. Then, it regenerates the signals to secure S/N feature and converts them into optical signals. The signals are sent to ROU through optical cables. When it receives RX optical signals from ROU, the unit converts them into RF signals to regenerate the signals and then converts them into optical signals to send them to ODU. In OEU, one shelf can be equipped with up to two DOUs. The DOU is the same as the module used for ODU. Up to two OEUs can be connected with ODU. Figure 4.16 OEU Outer Look Confidential & Proprietary 37/99 4.3.1 Specifications of OEU Item Size Weight Spec. 482.6(19) x 88.1(2U) x 450 9.3 Kg 48 W Remark mm Full Load Power consumption 4.3.2 Block Diagram of OEU 4.3.3 OEU parts Confidential & Proprietary 38/99 Figure 4.17 OEU Inner Look No. Unit Description 1 DOU 2 EWDM 3 ECPU 4 EPSU 5 6 ERFM Shelf Donor Optic Unit Convert TX RF signals into optical signals;

Convert RX optical signals into RF signals;

Provide up to four optical ports per DOU Expansion Wavelength Division Multiplexer Convert TX optical signals into RF signals;

Convert RX RF signals into optical signals;

Compensate for optical cable loss with ODU Expansion Central Processor Unit Control and monitoring system status Control and monitoring with RS232 Relay state values of ROU to BIU Expansion Power Supply Unit Input power: DC -48V, Output power: 9V, 6V Expansion Radio Frequency Module Regenerate TX signals and signals;

Regenerate RX signals and receive FSK modem signals 19 rack, 2U transmit FSK modem Remark Max 2ea 4.3.4 Function by unit 1) Donor Optic Unit (DOU) DOU is the same as the module used for ODU. Confidential & Proprietary 39/99 Figure 4.18 MDBU Outer Look 2) Expansion Wavelength Division Multiplexer(EWDM) EWDM module makes optical-electronic conversion of TX signals and makes electronic-optical conversion of RX signals. With an FSK modem in it, this multiplexer communicates with BIU. It also has ATT for optical compensation to compensate for optical cable loss between ODUs. Furthermore, it has internal WDM, and so, it needs only one optical cable to work with ROU. Figure 4.19 EWDM Outer Look 3) Expansion Central Processor Unit(ECPU) ECPU can inquire and control state of modules to be installed into OEU. This unit communicates with upper BIU while communicating with lower ROU. It also acts as communication bridge between BIU and ROU. In addition, the unit has RS-232C port for serial communication, which enables inquiry and control of devices thorugh PC. At the front panel, communication LED indicator indicates Confidential & Proprietary 40/99 communication state with upper BIU and lower ROU. It also has ALM LED indicator to show if a device gets faulty. Figure 4.20 ECPU Outer Look 4) Expansion Radio Frequency Module(ERFM) ERFM reconstructs Signal to Noise degraded by optical modules. With an internal FSK modem, this module communicates with ROU. Figure 4.21 ERFM Outer Look 5) Expansion Power Supply Unit(EPSU) As DC/DC Converter, EPSU receives -48V of input and provides +9V and +6V of DC power required for OEU. Confidential & Proprietary 41/99 Figure 4.22 ERFM Outer Look Confidential & Proprietary 42/99

4.3.5 Front/rear panels of OEU 1) Front panel Figure 4.23 OEU front panel Outer Look Description LED indicator to check EWDM state to see if it is abnormal LED indicator to check DOU module state to see if it is abnormal Communication state with devices, alarm status of the system and reset switch RS-232C port for communication and diagnosis of devices through PC/laptop. This equipment is indoor use and all the communication wirings are limited to inside of the building Item 1.EWDM LED 2.DOU LED 3.System LED and Reset 4. NMS(RS-232C port) 2) Rear panel Figure 4.24 Rear panel Outer Look Item Description 1. GND Port 2. DC Input Port 3.power switch 4. To/From ODU Optic Port 5. To/From ROU Optic Port Terminal for system ground Input terminal for DC -48V Power ON/OFF switch SC/APC optical connector terminal SC/APC optical connector terminal; use one optical cable per ROU. Confidential & Proprietary 43/99 4.4 ROU (Remote Optic Unit) ROU receives TX optical signals from ODU or OEU and converts them into RF signals. The converted RF signals are amplified through High Power Amp in a corresponding RDU, combined with Multiplexer module and then radiated to the antenna port. When receiving RX signals through the antenna port, this unit filters out-of-band signals in a corresponding RDU and sends the results to Remote Optic Module to make electronic-optical conversion of them. After converted, the signals are sent to a upper device of ODU or OEU. ROU can be equipped with up to three RDUs (Remote Drive Unit) and the module is composed of maximal Dual Band. Figure 4.25 ROU Outer Look ROU is designed in a cabinet, and provides the following functions and features. 4.4.1 Specifications of ROU Item Size(mm) Weight Power consumption Spec. Remark 482.6(19) x 258 x560, Including Bracket 35.45 Kg 265 W Full Load Confidential & Proprietary 44/99 4.4.2 Block Diagram of ROU 4.4.3 ROU parts Figure 4.26 ROU Inner Look Confidential & Proprietary 45/99 No. Unit Description Remark 1 RDU+BPF 2 RPSU 3 R-OPTIC 4 RCPU 5 Multiplexer 6 Enclosure Remote Drive Unit Filter and high amplify TX signals;

Filter and amplify RX signals;

Remove other signals through BPF BPF is exclude from VHF+UHF module Remote Power Supply Unit Input power: DC -48V, Output power: 27V,9V, 6V For 120V input of AC/DC;

For -48V input of DC/DC Remote Optic Make RF conversion of TX optical signals;

Convert RX RF signals into optical signals;

Compensates optical loss Communicates with BIU/OEU though the FSK modem Remote Central Processor Unit Controls signal of each unit Monitors BIU/ODU/OEU status through FSK modem communication Multiplexer Combine TX signals from 3 RDUs;

Distribute RX signals to 3 RDUs;

Enable you to use a single antenna port Enclosure to satisfy NEMA4;

Enable Wall/Rack Mount;

Check if the system is normal, through the front panel LED 7 SIU System Interface Unit Distribute power and signals of each module Confidential & Proprietary 46/99 4.4.4 Function by unit 1) Remote Drive Unit (RDU) When receiving TX signals from each band through Remote Optic, RDU filters the signals and amplifies them with High Power Ampifier. The unit also filters RX signals given through Multiplexer and amplifies them to send the signals to Remote Optic. In the unit, there is ATT to adjust gain. RDU devices are varied for each frequency band, including the following:

No Unit naming Description 1 2 3 4 5 6 RDU 800PS RDU 850C RDU 1900P+AWS-1 RDU 800PS+900I+PA RDU 850C+700PS RDU VHF+UHF Single, Single, Dual, Dual, Dual, Dual TX External BPF External BPF BPF RX Internal BPF External BPF External BPF(1900P) External BPF(1900P) Internal BPF(AWS-1) Internal BPF(AWS-1) External BPF(800PS) Internal BPF(800PS) Internal BPF(900I+PA) External BPF(900I+PA) External BPF(850C) External BPF(850C) Internal BPF(700PS) Internal BPF(700PS) External External BPF(VHF,UHF) BPF(VHF,UHF) 800PS 800PS+900I+PA Confidential & Proprietary 47/99 850C VHF+UHF 850C+700PS 1900P+AWS-1 Figure 4.27 RDU Outer Look 2) Remote Power Supply Unit (RPSU) RPSU receives -48V of input. This unit is divided into DC/DC type to output +6V, +9V and +27V of DC power and AC/DC type to receive 120V of AC input and to output +6V, +9V and +27V of DC power. Upon order, either of the two types should be decided. MS Connector, which uses ports to receive inputs, is designed to accept any of AC and DC. Only in this case, the input cable is different. RPSU has a circuit brake to turn the power ON/OFF and has LED indicator at the top to check if input power is normally supplied. Confidential & Proprietary 48/99 3) Remote Optic(R OPTIC) Remote Optic converts optical signals into RF signals and performs vice versa. With an FSK modem in it, the unit communicates with upper devices. It also has internal ATT for optical compensation to compensate for optical cable loss, if any. Figure 4.28 R OPTIC Outer Look 4) Remote Central Processor Unit (RCPU) RCPU can monitor and control each module of ROU. This unit receives and analyzes upper communication data from Remote Optic and reports the unit's own value to upper devices. At the front of the module, it has LED indicator to show system status, letting you check any abnormalities at a time. At the same front, it also has communication LED Indicators to show communication status with upper devices. Through RS-232C Serial Port, the unit enables you to Confidential & Proprietary 49/99 check and control device status through PC and laptop. This equipment is indoor use and all the communication wirings are limited to inside of the building. Figure 4.29 RCPU Outer Look 5) Multiplexer Multiplexer works as a module to combine or distribute multiple signals into one antenna. This device has a port to combine multiple signals. You need to connect input and output ports of RDU through a corresponding port. Figure 4.30 Multiplexer Outer Look Confidential & Proprietary 50/99 6) System Interface Unit(SIU) SIU distributes power and signals to each module. 4.4.5 Bottom of ROU 1) Functions Figure 4.31 ROU Bottom Look Confidential & Proprietary 51/99 Item Description Remark 1. VHF/UHF TX/RX Port Terminal for TX and RX antenna ports of VHF and UHF 2.Antenna Port System Antenna Port, N-type female 3. Power Port AC 120V input port or DC-48V input port 4. Optic Port Optical input port 5.External Port Port for external devices 6.GND LUG PORT Terminal for system ground POWER PORT Power ports are used for power-supplying of -48V DC or 120V AC, and specific power cable should be applied to each different types of ROU power supply (AC/DC or DC/DC). Below figure is naming of the power supply by type. Exteral PORT External ports are reserved ports for external equipments for future implementation, and used to monitor the status and control the equipments. Below figure is naming of the external ports. Confidential & Proprietary 52/99 Section5 System Installation & Operation 5.1 BIU Installation 5.2 ODU Installation 5.3 ROU Installation 5.4 OEU Installation 5.5 System Operation and Alarm Status Confidential & Proprietary 53/99 This chapter describes how to install each unit and optical cables, along with power cabling method. In detail, the chapter describes how to install shelves or enclosuers of each unit, Power Cabling method and Optic Cabling and RF Interface. Furthermore, by showing power consumption of modules to be installed in each unit, it presents Power Cabling budget in a simple way. Then, it describes the quantity of components of modules to be installed in each unit and expansion method. 5.1 BIU Installation 5.1.1 BIU Shelf Installation Generally, BIU is inserted into a 19 Standard Rack. As this unit has handles at each side for easy move. With two fixing holes at each side, you can tightly fix the unit into a 19 rack. Figure 5.1 RACK Installation BIU has the following components:

No. Unit Common Part Shelf MCDU MCPU MPSU Power Cable Description Including Main Board, 19,5U

With Ethernet Port and RS-232 Port Operate -48Vdc Input

-48Vdc Input with two lug terminal Optional Part MDBU 800PS,800PS+900I+Paging,850C,850C+700P S, 1900P, AWS-1 MDBU Remark 1EA 1EA 1EA 1EA 1EA Up to 4EA to be inserted Basically, the common part of BIU should have shelves and it should be equipped with MCDU Confidential & Proprietary 54/99 to combine and divide TX/RX signals, MPSU to supply devices with power, MCPU to inquire and control state of each module and Power Cable to supply power from external rectifiers. In addition, MDBU can be inserted and removed to provide services for desired band (Optional). 5.1.2 BIU Power Cabling BIU has -48V of input power. This unit should connect DC cable with the Terminal Block seen at the rear of BIU. Terminal Color of cable Description Remark

-48V GND NC Blue color Black color Not Connected

Before connecting the power terminal, you need to connect "+" terminal of Multi Voltage Meter probe with the GND terminal and then connect "" terminal with -48V to see if -48Vdc voltage is measured. After the check, you need to connect the power terminal with the terminal of the terminal block seen below. Confidential & Proprietary 55/99 Note that BIU does not operate if the "+" terminal and the "" terminal of the -48V power are not inserted into the accurate polarity. When you connect -48V power with BIU, use the ON/OFF switch of MPSU located at the front of BIU to check the power. Power Switch LED Description O I ON DC ALM ON DC ALM Abnormal, Not supply Power -48Vdc Normal supply power -48Vdc Normal Status Failure of output Power Normal Status 5.1.3 RF Interface at BIU BIU can be connected with Bi-Directional Amplifier and Base Station Tranceiver. To connect BIU with BDA, you need to use a duplexer or a circulator to separate TX/RX signals from each other. BIU can feed external TX/RX signals from the Back Plane. Using MDBU separated from each carrier band, BIU can easily expand and interface with bands. As seen in the table below, MDBU is divided into Single and Dual Bands. The unit can be connected with two to four carrier signals per band. At the rear, #1~4 marks are seen in order per MDBU. The following table shows signals to be fed to corresponding ports:

No Unit naming Description In/out RF Port Confidential & Proprietary 56/99 1 800PS MDBU Single Band Port #1 Port#2 TX 800PS RX 800PS TX(851~869MHz) RX(806~824MHz) 800PS TX(851~869MHz) 800PS RX(806~824MHz) 850C RX(824~849MHz) 850C RX(824~849MHz) 2 850C MDBU Single Band Port #3 850C TX(869~894MHz) Port#4 850C TX(869~894MHz) 3 1900P MDBU Single Band 4 AWS-1 MDBU Single Band 5 800PS+900I+PA Dual Band MDBU 800PS:2Port 900I:1Port Paging:1Port Port#1 Port#2 Port#3 Port#4 Port#1 Port#2 Port#3 Port#4 Port#1 Port#2 Port#3 1900P 1900P TX(1930~1995MHz) RX(1850~1915MHz) 1900P 1900P TX(1930~1995MHz) RX(1850~1915MHz) 1900P 1900P TX(1930~1995MHz) RX(1850~1915MHz) 1900P 1900P TX(1930~1995MHz) RX(1850~1915MHz) AWS-1 AWS-1 TX(2110~2155MHz) RX(1710~1755MHz) AWS-1 AWS-1 TX(2110~2155MHz) RX(1710~1755MHz) AWS-1 AWS-1 TX(2110~2155MHz) RX(1710~1755MHz) AWS-1 AWS-1 TX(2110~2155MHz) RX(1710~1755MHz) 800PS 800PS TX(851~869MHz) RX(806~869MHz) 800PS 800PS TX(851~869MHz) RX(806~869MHz) Paging Paging TX(929~932MHz) RX(896~902MHz) Confidential & Proprietary 57/99 850C+700PS MDBU Port#1 Dual Band 700PS:2Port Port#2 850C:2Port VHF+UHF Dual Band MCDU VHF+UHF : 1Port Port#4 900I TX(929~941MHz) 900I RX(896~902MHz) 700PS 700PS TX(764~776MHz) RX(794~806MHz) 700PS 700PS TX(764~776MHz) RX(794~806MHz) 850C TX(869~894MHz) 850C RX(824~849MHz) 850C TX(869~894MHz) 850C RX(824~849MHz) VHF VHF Tx(136~174MHz) Rx(136~174MHz) UHF UHF Tx(396~512MHz) Tx(396~512MHz) Port#3 Port#4 Port#1 6 7 At the rear of BIU, input and output ports are seen for each MDBU. The name of all the ports are silk printed as "#1, #2, #3 and #4." Referring to the table above, you need to feed right signals to input and output ports of corresponding MDBU. For each port, TX signals and RX signals are separated from each other. You don't have to terminate unused ports unless you want to. BIU interface with Base station Transceiver Basically, BIU has different TX and RX ports, and so, you have only to connect input and output ports. Confidential & Proprietary 58/99 Through spectrum, you need to check signals sent from BTS TX. If the signals exceed input range (-20dBm~+10dBm), you can connect an attenuator ahead of the input port to put the signals in the input range. BIU interface with Bi-Directional Amplifier Basically, BIU is in Simplexer type; when you use BDA, you need to separate BDA signals from TX and RX type. Using a duplexer or a circulator, you can separate TX/RX signals of an external device from each other. Figure 5.2 800PS BDA Interface using Circulator Confidential & Proprietary 59/99 Figure 5.3 800PS BDA Interface using Duplexer BIU interfaces with BDA in either of the methods above. In this case, you need to check TX input range as well. Given the TX input range (-20dBm~+10dBm/Total per port), make sure to see if the value is in the input range, using Spectrum Analyzer, when you connect input ports. 5.1.4 MDBU insertion MDBU is designed to let a MDBU inserted into any slot. BIU can be equipped with a total of four MDBUs. If only one MDBU is inserted into a slot with the other slots reserved, you need to insert BLANK cards into the other slots. If you do not terminate input and output ports of MCDU, which combines TX signals and divides RX signals, it will cause loss and generation of spurious signals at the other party's band. Given this, make sure to insert MDBU BLANK into slots of MDBU. When MDBU is inserted into BIU, LED at the front panel will show the following information:

Confidential & Proprietary 60/99 LED Description ON ALM Power is not supplied. Power is supplied. Normal Operation Abnormal Operation MONITOR SMA port seen at the front panel of MDBU enables you to check current level of TX input and RX output signals in current service without affecting main signals. TX MON is -20dB compared with TX Input power and RX MON is -20dB as well compared with RX Output power. 5.1.5 ODU Interface BIU supports up to four ODUs. At the rear of BIU, eight RF input and output ports for ODU and four power ports for power supply and communication are provided. At BIU, you can check installation information of ODU. Confidential & Proprietary 61/99 At the rear part of ODU, the number of RF Ports and Signal Ports are printed in order. Therefore, you need to be careful in case of expansion of ODU. ODU Numbering RF Port TX RX Signal Port ODU 1 ODU 2 ODU 3 ODU 4

#1

#2

#3

#4 ODU-1 ODU-2 ODU-3 ODU-4 Confidential & Proprietary 62/99

If ODU is not connected in the right order, related devices may fail to communicate with each other or the unit may read wrong information. Given this, you need to connect the unit with accurate RF Port and Signal Port in a corresponding number. For unused RF Ports for ODU expansion, make sure to terminate them using SMA Term. When you put ODU on the top of BIU, it is recommended to install the unit at least 1U apart from BIU. Heat from BIU climbes up to reach ODU. 5.1.6 Consumption Power of BIU The table below shows power consumption of BIU:

Part Unit Consumption Power Remark Common Part Shelf MCDU MCPU MPSU MDBU 800PS MDBU 800PS+900I+Paging MDBU MDBU 850C MDBU 850C+700PS MDBU 1900P MDBU AWS-1 7.5 W 12W 20W 12W 19W 20W 12W BIU supplies power for ODU. Therefore, when you want to calculate total power consumption of BIU, you need to add power consumption of ODU to the total value. Power consumption of ODU is given in the later paragraph describing ODU. Confidential & Proprietary 63/99 5.2 ODU Installation ODU should be, in any case, put on the top of BIU. This unit gets required power and RF signals from BIU. The following table shows components of ODU:

No. Unit Description Common Part Shelf RF Cable Signal Cable Including Main Board, 19,1U SMA(F) to SMA(F), 400mm 2Row(15P_F) to 2Row(15P_M),650mm Optional Part DOU Optical Module with 4 Optic Port Remark 1EA 2EA 1EA Up to 2EA to be inserted 5.2.1 ODU Shelf Installation ODU is a shelf in around 1U size. Its width is 19 and so this unit should be inserted into a 19 Standard Rack. ODU should be, in any case, put on the top of BIU. BIU should be distant around 1U when the unit is installed. 5.2.2 ODU Power Cabling ODU does not operate independently. The unit should get power from BIU. When you connect 2-column, 15-pin D-SUB Signal cable from BIU and install DOU, LED on the front panel is lit. Through this LED, you can check state values of LD and PD of DOU. 5.2.3 ODU Optic Cabling As optical module shelf, ODU makes electronic-optical conversion of TX signals and then makes optical-electronic conversion of RX signals. ODU can be equipped with up to two DOUs. One DOU supports four optical ports and one optical port can be connected with ROU. Optionally, only optical port 4 can be connected with OEU. As WDM is installed in DOU, the unit can concurrently send and receive two pieces of wavelength (TX:1310nm, RX:1550nm) through one optical core. DOU has SC/APC of optical adaptor type. Confidential & Proprietary 64/99 Figure 5.4 Optical cable of SC/ACP Type For optical adaptor, SC/APC type should be used. To prevent the optical access part from being marred with dirt, it should be covered with a cap during move. When devices are connected through optical cables, you need to clear them using alcohocol to remove dirt. 5.2.4 Insert DOU to ODU In an ODU Shelf, up to two DOUs can be installed. DOU module is in Plug in Play type. When you insert DOU in ODU, insert the unit into the left DOU1 slot first. You can be careful as the number is silk printed at the left. The following figure shows installation diagram of ODU with one DOU inserted in it. The following figure shows installation diagram of ODU with two DOUs inserted in it. When you insert DOU into ODU, insert the unit into the left DOU1 slot first. Into unused slot, you need to insert BLANK UNIT in any case. Confidential & Proprietary 65/99 5.2.5 Consumption Power of ODU ODU gets power from BIU. One ODU can be equipped with up to two DOUs. Depending on how many DOUs are installed, power consumption varies. The table below shows power consumption of ODU:

Part ODU_4 ODU_8 Unit DOU 1 EA DOU 2 EA Consumption Power Remark 13W 26W 5.3 ROU Installation 5.3.1 ROU Enclosure installation ROU is designed to be water- and dirt-proof. The unit has the structure of One-Body enclosure. It satisfies water-proof and quake-proof standards equivalent of NEMA4. ROU can be mounted into either of a 19 Standard Rack or on a Wall. Basically, ROU has both of a Wall Mount Bracket and a Rack Mount Bracket. Depending on the use of the Rack Mount Bracket, the bracket can be removed. The following shows dimension of the fixing point for the Wall Mount Bracket. Figure 5.5 How to install ROU Confidential & Proprietary 66/99 Figure 5.6 Dimension used to install ROU on the WALL ROU Wall Mount Installation Turn M12 Fixing Screws by half on the wall and fully fix the screw with a Wall Mount Bracket on it. For convenience, the Wall Mount Bracket has fixing holes to let you easily mount an enclosure. Turn the M5 Wrench Bolt by half at each side of the Heatsink of the enclosure. Confidential & Proprietary 67/99 Put the enclosure with the M5 Wrench Bolt fixed on the fixing groove and fix the M5 Wrench Bolts into the remaining fixing holes. In this case, you will use 12 M5 Wrench Bolts in total except bolts used for the fixing groove. ROU Rack Mount Installation Like other units, ROU is designed to be inserted into a rack. The unit occupies around 13U of space except cable connection. Confidential & Proprietary 68/99 ROU component ROU has the following components:

No. Common Part Unit Enclosure RCPU R_OPTIC RPSU Multi-Plexer Power Cable Description Remark Including Rack & Wall cradle

With SC/ACP adaptor Alternative DC-48V or AC 120V

- MS Connector with 3 hole to AC 120 plug(AC)

- MS Connector with 2 lug termination(DC) 1EA 1EA 1EA 1EA 1EA Optional Part RDU+BPF 800PS,800PS+900I+Paging,850C,850C+700PS, 1900P+ AWS-1 RDU, VHF+UHF(NO BPF) Up to 3EA to be inserted Basically, the common part of ROU should have an enclosure and it is equipped with RCPU to inquire and control state of each module, R_OPTIC to make both of electronic-optical and optical-electronic conversions, RPSU to supply power for ROU and a Multi-Plexer to help share multiple TX/RX signals through one antenna. It should have Power Cable for external rectifier or to supply required power. Confidential & Proprietary 69/99 In addition, RDU can be inserted and removed to provide service for desired band (Optional). 5.3.2 ROU Power Cabling ROU supports both of DC-48V and AC120V of input power. As RPSU for DC-48 and RPSU for AC120V are separated from each other, you need to select one of them in case of purchase order. RPSU for DC -48V and RSPU for AC 120V have the same configuration and capacity while each of the units uses different input voltage from each other. The following figure shows configuration of RPSUs for DC -48V and AC 120V. Confidential & Proprietary 70/99 MC Connector numbering A B C Lug Naming RPSU Terminal naming AC AC_H AC_N GND DC

-48V GND DC NC AC AC-H AC-N FG DC

-48V IN_GND FG Remark Check if the connection is the same as one seen in the table above and make sure to turn the power ON. 5.3.3 Optical Cabling ROU makes optical-electronic conversion of TX signals from upper ODU and OEU and makes electronic- optical conversion of RX signals. ROU has one optical module in it. As WDM is installed in the R_OPTIC module, two pieces of wavelength (TX:1310nm, RX:1550nm) can be sent/received with one optical core at the same time. ROU has SC/APC of optical adaptor type. For optical adaptor, SC/APC type can be used. To prevent the optical access part from being marred with dirt, it should be covered with a cap during move. When devices are connected through optical cables, you need to clear them using alcohocol to remove dirt. Confidential & Proprietary 71/99 Optical cables should be inserted into Optic Port outside of ROU. Using an optical slack devices in ROU, you need to coil around one or two roll of cables to be connected with the optical adaptor of ROPTIC. At this time, curvature of the optical cable should be at least 10 to prevent insertion loss from being increased. Through GUI, check if PD value of ROPTIC is in a tolerable range (+4~-1dBm). 5.3.4 Insertion of RDU ROU has slots to enable up to three RDU modules to be inserted into the unit. You can insert a RDU into any slot. It is not possible to provide services with a RDU module alone; you need to connect the module with Cavity BPF in any case. The table below shows types of RDU and CAVITY BPF:

No Unit naming Cavity BPF RF CABLE Multiplexer Interface TX RX 1 2 3 5 6 7 RDU 800PS 800PS BPF RDU 850C 850C BPF TX CABLE 1EA RX CABLE 1EA TX CABLE 1EA RX CABLE 1EA BPF OUT RDM RX IN BPF TX OUT BPF RX IN RDU 1900P+AWS-1 1900P DUP TX/RX CABLE 1EA RDM AWS+1900P RDU 800PS+900I+PA 800PS+900I+PA BPF RDU 850C+700PS 850C+700PS RDU VHF+UHF BPF

TX CABLE 1EA RX CABLE 1EA TX CABLE 1EA RX CABLE 1EA TX CABLE 1EA RX CABLE 1EA RDM TX OUT RDM TX OUT RDM RX IN RDM RX IN

The following describes how to install RDU in ROU. How to install RDU 800PS Assy The following components are required:

No. 1 2 3 Unit Description Remark RDU 800PS 800PS BPF RF Module BPF 800PS TX RF CABLE SMA(M) to SMA(M), 360mm Confidential & Proprietary 72/99 4 800PS RX RF CABLE SMA(M) to SMA(M), 410mm Combine

combine with BPF.) RDU 800PS with 800PS BPF (As it is a plug type, push the unit to Insert the combined 800PS+850C BPF Assy into any slot of ROU. Combination point of 800PS+800PS BPF Assy of the multiplexer

Multiplexer Port naming Interface Point 800PS RDU 800PS BPF Remark 800PS+900I+PA TX

TX OUT Confidential & Proprietary 73/99 800PS+900I+PA RX RX IN

How to RDU install 850C Assy The following components are required:

No. 1 2 3 4 Unit Description Remark RDU 850C 850C BPF RF Module BPF 850C TX RF CABLE 850C RX RF CABLE SMA(M) to SMA(M), 310mm SMA(M) to SMA(M), 310mm Combine 850C RDU with 850C BPF (As it is a plug type, push the unit to combine

with BPF.) Insert the combined 850C+850C BPF Assy into any slot of ROU. Combination point of 850C+850C BPF Assy of the multiplexer

Multiplexer Port naming Interface Point 850C RDU 850C BPF Remark Confidential & Proprietary 74/99 850C TX 850C RX

TX OUT RX IN How to install RDU 800PS+900I+PA Assy The following components are required:

No. 1 2 3 4 Unit Description Remark RDU 800PS+900I+PA 800PS+900I+PA BPF RF Module BPF 800PS+900I+PA TX RF CABLE SMA(M) to SMA(M), 460mm 800PS+900I+PA RX RF CABLE SMA(M) to SMA(M), 380mm Combine

the unit to combine with BPF.) RDU 800PS+900I+PA with 800PS+900I+PA BPF (As it is a plug type, push Insert the combined Combination point of 800PS+900I+PA BPF Assy into any slot of ROU. 800PS+900I+PA BPF Assy of the multiplexer

Confidential & Proprietary 75/99 Multiplexer Port naming Interface Point 800PS+900I+PA RDU 800PS+900I+PA BPF 800PS+900I+PA TX 800PS+900I+PA RX TX OUT RX IN

Remark How to install RDU 850C+700PS Assy The following components are required:

No. 1 2 3 4 Unit RDU 850C+700PS 850C+700PS BPF RF Module BPF Description Remark 850C+700PS TX RF CABLE SMA(M) to SMA(M), 470mm 850C+700PS RX RF CABLE SMA(M) to SMA(M), 400mm RDU 850C+700PS with 850C+700PS BPF (As it is a plug type, push the unit Combine

to combine with BPF.) Insert the combined Combination point of

850C+700PS BPF Assy into any slot of ROU. 850C+700PS BPF Assy of the multiplexer Confidential & Proprietary 76/99 Multiplexer Port naming Interface Point 850C+700PS RDU 850C+700PS BPF 850C+700PS TX 850C+700PS RX TX OUT RX IN

Remark How to install RDU 1900P+AWS-1 Assy The following components are required:

No. 1 2 3 4 Unit RDU 1900P+AWS-1 1900P+AWS-1 BPF RF Module BPF Description Remark 1900P+AWS-1 RF CABLE SMA(M) to SMA(M), 390mm 1900P+AWS-1 RF-01 SMA(M) to SMA(M) Semirigid

RDU 1900P+AWS-1 with 1900P BPF (As it is a plug type, push the unit to Combine combine with BPF.) Confidential & Proprietary 77/99

Connect BPF 1900P port with 1900P port of 1900P RDU through 01 RF CABLE. Insert the combined Combination point of 1900P+AWS-1 BPF Assy into any slot of ROU. 1900P+AWS-1 BPF Assy of the multiplexer

1900P+AWS-1 RF-

Multiplexer Port naming Interface Point 1900P+AWS-1 RDU 1900P BPF Remark AWS-1+1900P COM 1900P+AWS

How to install RDU VHF+UHF Assy The following components are required:

No. 1 2 3 Unit Description Remark RDU VHF+UHF RDU VHF+UHF RF CABLE RF Module SMA(M) to SMA(M), 460mm RDU VHF+UHF RF CABLE SMA(M) to SMA(M), 380mm Insert the combined

Connect RDU VHF+UHF Port with ROU VHF+UHF Port through VHF+UHF RF CABLE VHF+UHF RDU into any slot of ROU. Confidential & Proprietary 78/99 You cannot insert the same module and band into MULTIPLEXER port at the same time. For example, you are not supposed to insert both of 800PS RDU and 800PS+900I+PA RDU into ROU at the same time. In the same way, you cannot concurrently insert both of 850C RDU and 850C+700PS RDU into ROU. Information of LED at the front RDU RDU has the structure of enabling a random RDU to be inserted into three slots. ROU can be equipped with a total of three RDUs. If only one RDU is inserted into a slot and the other slots ramian reserved, you need to insert BLANK cards into the other slots. When RDU is inserted into ROU, LED of the front panel shows the following information:

LED Description ON ALM Power is not supplied Power is supplied. Normal Operation Abnormal Operation Confidential & Proprietary 79/99 Up to three RDUs can be inserted. If one or two units are used, then you need to terminate the unused slot of RDU with a BLANK card. 5.3.5 Consumption of RDU The following table shows power consumption of RDU:

Part Unit Consumption Power Remark Common Part Enclosure RCPU ROPTIC RPSU Multiplexer RDU 800PS 17W 39W 800PS 49W 900I+PA HPA OFF RDU 800PS+900I+Paging 900I+PA 72W 800PS HPA OFF RDU 850C 39W FULL 79W Both HPA ON 850C 49W 700PS HPA OFF RDU 850C+700PS 700PS 58W 850C HPA OFF RDU FULL 93W Both HPA ON 1900P 46W AWS-1 HPA OFF RDU 1900P+AWS-1 AWS-1 46W 1900P HPA OFF RDU VHF+UHF FULL 68W Both HPA ON VHF UHF 47W VHF HPA OFF 47W UHF HPA OFF FULL 74W Both HPA ON Confidential & Proprietary 80/99 For power consumption of ROU, the common part consumes 17W. Depending on the quantity of each RDU, you can add overall power consumption of ROU. Only, in case of Dual-Band signals, power consumption is calculated respectively when HPA of the other party is turned OFF and two HPA devices are turned ON. Note that when you calculate Power Budget. 5.4 OEU Installation OEU is used to expand ROU in Campus Site. OEU is located at a Remote Closet. As it can be equipped with up to two DOUs

, you can expand a total of eight ROUs. 5.4.1 OEU Shelf installation OEU is a shelf in around 2U size. Its width is 19 and so this unit should be inserted into a 19 Standard Rack. OEU is in a Remote Closet, providing optical ports of ROU. The following table shows power consumption of OEU:

No. Unit Description Remark Common Part Shelf Power Cable Including EWDM,ERF,EPSU,ECPU, 19,2U

-48Vdc Input with two lug terminal Optional Part DOU Optical Module with 4 Optic Port 1EA 1EA Up to 2EA to be inserted 5.4.2 OEU Power Cabling The input power of OEU is DC -48V. You need to connect DC cable with the Terminal Block seen at the rear of OEU. Terminal Color of cable

-48V NC GND Blue color Not Connected Black color Description Input range: -42 ~ -56Vdc Remark Before connecting the power terminal, you need to connect "+" terminal of Multi Voltage Meter probe with the GND terminal and then connect "" terminal with -48V to see if -48Vdc voltage is measured. After the check, connect the power terminal through the terminal seen below. Confidential & Proprietary 81/99 Note that OEU does not operate if the "+" terminal and the "" terminal of the -48V power are not inserted into the accurate polarity. 5.4.3 OEU Optic Cabling OEU is connected with upper ODU. With DOU inserted in it, the unit is connected with ROU. Confidential & Proprietary 82/99 As OEU has a shelf with EWDM in it, the unit makes electronic-optical conversion of TX signals from ODU and makes optical-electronic conversion of RX signals. In addition, OEU can be equipped with up to two DOUs. One DOU supports four optical ports and one optical port can be connected with ROU. With WDM in DOU, the unit can concurrently send/receive two pieces of wavelength (TX:1310nm, RX:1550nm) through one optical core. DOU has SC/APC of optical adaptor type. Figure 5.7 Optical cable of SC/ACP Type For optical adaptor, SC/APC type should be used. To prevent the optical access part from being marred with dirt, it should be covered with a cap during move. When devices are connected through optical cables, you need to clear them using alcohocol to remove dirt. 5.4.4 Insert DOU to OEU Into OEU Shelf, up to two DOUs can be inserted. DOU module is in Plug in Play type. When you insert DOU in OEU, insert the unit into the top DOU1 slot first. You can be careful as the number is silk printed at the left. The following figure shows installation diagram of OEU with one DOU inserted in it. The following figure shows installation diagram of OEU with two DOUs inserted in it. Confidential & Proprietary 83/99 When you insert DOU into OEU, insert the unit into the top DOU1 first. For unused slots, you nedd to install BLANK UNIT into them. 5.4.5 Consumption Power of OEU OEU has -48V DC Power supply in it. ODU can be equipped with up to two DOUs. Depending on the quantity of DOU, power consumption is varied. The following table shows power consumption of OEU:

Part Common Part Unit Shelf EWDM ERF EPSU OEU_4 OEU_8 DOU 1 EA DOU 2 EA Consumption Power Remark 12W 23W 33W 5.5 System Operation and Alarm Status This section describes operation of SMDR-NH124. It deals with procedures and operations for normal system operation after installation. It also describes operations per unit and interworking methods. Confidential & Proprietary 84/99 Section6 Operation 6.1 BIU Operation 6.2 ROU Operation Confidential & Proprietary 85/99 This chapter describes operation of SMDR-NH124. It deals with procedures and operations for normal system operation after installation. It also describes operations per unit and interworking methods. 6.1 BIU Operation 6.1.1 BIU 6.1.2 TX Operation at BIU TX level to be sent to BIU should be in the range of -20dBm ~ + 10dBm. If the level exceeds the range, you need to connect an attenuator with the front end of BIU input and adjust the level in the corresponding range. Out of the range, maximal power cannot be outputted and so you need to increase output power of BDA or adjust attenuation amount of BTS's coupler or ATT to adjust the level. For signals of all bands, you need to check, using spectrum, if they are in an appropriate level before making connection with input port of BIU and then check if there are spurious signals. You need MDBU of a band you want to use. Insert the unit into BIU and check if it works normally. For MDBU, up to two TX inputs are provided. Input level per port is -20dBm~+10dBm. The following describe settings for 800MHz Public safety MDBU. Confidential & Proprietary 86/99 Checking the status of the system's LED Indicator After turning on the switch of the power supply in BIU, check information on each module's LED of the system. The table below shows normal/abnormal cases depending on the status of each module's LED. LED information Unit LED Indicates ON Green: MDBU is normally power-supplied. MDBU Green: MDBU is normal. ALM ON TXD RXD ALM MCPU Red: MDBU is abnormal; check the alarm through RS-232C. Green: MCPU is normally power-supplied. Green flicker: TX signals are transmitted to communicate with ROU. Green flicker: RX signals are received from ROU. Green: BIU system is normal. Red: BIU system is abnormal; check the alarm through RS-232C. ON Green: BIU is connected with power and MPSU works normally. MPSU Green: DC output is normal. ALM Red: DC output is abnormal. MDBU Setting Insert MDBU into BIU. Check if the ON LED Indicator at the front panel of MDBU is lit green. Make connection with DEBUG port of MCPU through RS-232 Cable (Direct Cable). Check if the ID of MDBU module is searched for in those 1~4 slots of MDBU through GUI. When you select the tab of a corresponding slot (MDBU 1~4) from the main window, you can inquire and set the status of a corresponding MDBU module. Confidential & Proprietary 87/99 Check if MDBU is inserted into a corresponding slot of BIU. The ID screen shows the following:

A. MDBU ID: 800Public Safety, 800PS+900I+Paging, 850C, 700PS+850C, AWS-1,1900P B. Not Insert: This status value appears when MDBU has not been set. C. Link Fail: This status value appears when MDBU has been set but it fails to communicate with modules. Use the ON/OFF (Activation/de-activation) function for a port you want to use and turn it ON. Depneding on whether to use a port, output varies. Thus, make sure to turn OFF unused ports. In the case of VHF+UHF, it contain to MCDU. The table below shows output power depneding on whether to use a port:

MDBU Band Output level (Composite No. of Max port (N) 700PS 800PS 850Cellular 900I+Paging 1900PCS power) 23dBm-10*LOG(N) 23dBm-10*LOG(N) 23dBm-10*LOG(N) 23dBm-10*LOG(N) 26dBm-10*LOG(N) 2 2 2 2 4 Confidential & Proprietary 88/99 AWS-1 VHF UHF 26dBm-10*LOG(N) 24dBm-10*LOG(N) 24dBm-10*LOG(N) 4 1 1 Check if the level of TX IN POWER is the same as the value measured through spectrum

(Within 3dB). Use TX IN AGC function and automatically set internal ATT depending on input level. ATT is automatically set based on -20dBm of input . The table below shows TX IN ATT depending on TX IN POWER. For manual setting, you can set ATT depending on input according to the table. TX IN POWER TX IN ATT TX IN POWER TX IN ATT TX IN POWER TX IN ATT

Edit Naming of a port and set it as a desired character string (up to 12 characters). The figure below shows a screen when you set SPRINT for port 1 and T-MOBILE for port 2. Confidential & Proprietary 89/99 Use various upper/lower limits. The following table shows recommended limit settings:

Item Recommended Limit Remark TX IN HIGH ALM TX IN LOW ALM RX OUT ALC RX OUT HIGH ALM 15dBm

-25dBm 0dBm 5dBm Alarm Alarm Auto Level control Alarm As such, when you finish setting normal input levels and alarm limits, check if the value of MODULE FAILUER LED Indicator is lit green (Normal case). 6.1.3 RX Operation at BIU For RX operation at BIU, you need to set RX gain to prevent BTS or BDA from being affected. There is an ATT setting window to let you adjust gain per band and port. Total RX gain is 50dB. To adjust a desired gain, you need to do the following. For RX gain of a desired gain, you can set it as 50dB-RX ATT. Use the terminal and check if TX Adjust value and Ec/Io value is appropriate. To block high signals from entering BTS or BDA, keep ALC mode activated (ON). 6.1.4 Setting whether to use ROU/OEU at BIU BIU controls overall system, working as common part in any equipment. Connect BIU with such units as ODU, OEU and ROU to be interfaced with the BIU and manually set whether to use the units at the INSTALL window of BIU. To inquire and set information on units in lower level (OEU and ROU) at BIU, you need to check on a corresponding item at INSTALL Menu for a unit to be actually used. This Confidential & Proprietary 90/99 setting makes BIU actually try to communicate with lower units while collecting the status value of units. The menu below shows INSTALL menu, where you can see topology for overall units at a glance. Overall topology for SMDR-NH124 Configuration of BIU-ODU-ROU Configuration on whether to use BIU varies depending on the topology above and so you need to check on a unit to be installed. Ex.) How to set INSTALL menu when ROU is connected with DOU1 of ODU1, which is connected with BIU:

Confidential & Proprietary 91/99 1. Select INSTALL from GUI menu. 2. Check on ODU1 menu>DOU1>ROU1. 3. Close the INSTALL menu. 4. Check if ROU is created, which was checked on at the left TREE panel. 6.1.5 ODU Operation at BIU BIU can be equipped with up to four ODUs. One ODU can hold two DOUs in it. For information on insertion/deletion of DOU in ODU, you can see at the main window of BIU. Confidential & Proprietary 92/99 When you select ODU screen from the left TREE panel, you can see DOU1 or DOU2 menu actiavted depending on whether DOU has been inserted. Then, the optical port set at the INSTALL menu is also actiavted to let you check PD value of the optical port. Any optical port not set at the INSTALL menu is seen de-activated in grey. The level of Laser diode received from ROU/OEU is +7dBm0.5dB. The level of Photo diode will be displayed with losses related to the length of optical cables and insertion loss of optical connecters. Confidential & Proprietary 93/99 In general, the level of optical PD POWER should be +6dBm~ +2dBm1.5dB. What is more, ODU has the function of automatically compensating for optical cables. The following procedure is related to how to make optical compensation with ROU connected with port, at a corresponding DOU window of ODU:

1. Check if ODU is smoothly communicating with a corresponding ROU. 2. Select ODU or DOU from the left Tree panel. 3. Set RX OPTIC COMP of the optical port of a corresponding DOU as "ON."

4. During optical compensation , the Result window shows "Processing" and then a result value. There are three types of results as follows:

A. Success: The optical compensation is normally made. B. Over Optic Loss: Generated optical loss is 5dBo or more. C. Communication Fail: Communication with ROU is in poor conditin. 5. ATT of optical compensation can work based on the numerical expression of 12-2*(LD POWER-PD POWER). 6. Optical compensation can be made not only in ODU but also in ROU. 6.2 ROU Operation The figure below shows the level of the system link of SMDR-NH124 (BIU-ODU-ROU). This section describes ROU-related information. ROU receives various signals through optical modules. The signals are filtered only for corresponding signal band from a corresponding RDU module and amplified with a High Power Amplifier. Then, the multiplexer combines the signals with others and sends them with an antenna. 6.2.1 ROU Operation ROU is in one-body enclosure type. ROU is located at a remote closet in a building. Confidential & Proprietary 94/99 And it can be installed on a wall or into a rack. Basically, one antenna is provided. To install a variety of antennas, you need such devices as a divider and a coupler. ROU can work with a DC Feeder and an Optic Cable Feeder. For power supply of ROU, a power supply in AC-DC and DC-DC type is provided to let you select a power supply suitable for an application. For upper level, ROU can be connected with ODU and OEU. It has AGC function for 5dBo of optical cable loss. The following show operational procedures after installation of ROU. Checking the status of ROU's LED Indicator After turning on the switch of the power supply in ROU, check information on each module's LED of the system. The table below shows normal/abnormal cases depending on the status of each module's LED. Unit LED Indicates ON LD PD TXD RXD ALM ON RCPU RDU Green: ROU is normally power-supplied. Green: Laser Diode is normal. Red: Laser Diode is abnormal. Green: Photo Diode is normal. Red: Photo Diode is abnormal; check optical cables. Green flicker: TX signals are transmitted to communicate with BIU/OEU. Green flicker: RX signals are received from BIU/OEU. Green: ROU system is normal. Red: ROU system is abnormal; check the alarm through RS-232C. The power is not supplied. The power is supplied. Confidential & Proprietary 95/99 ALM RPSU ON Normal Operation Abnormal Operation The power is not supplied or the polarity of -48V is reversed. The power is supplied. ID Setting Use an RS-232 Cable(Direct Cable) for connection with DEBUG port of ROU RCPU. Execute GUI (Graphic User Interface). When you connect ROU directly with a Serial port, the screen will show the TREE of a direct line of units connected with ROU. Basic ROU ID is set as ODU1-

DOU1-ROU1. Set it with the ID of a designed ROU. Before setting an ROU ID, you need to check if ROU is connected with the optical port of ODU or OEU (See System Topology at

"Setting whether to use BIU"). If multiple ROUs connected to BIU share the same ID, the screen will fail to read status information on the ROUs with the same IDs. Therefore, make sure not to redundantly set ROU ID. Checking Communication LED of RCPU Check if TXD and RXD LEDs in RCPU make communication. Receiving FSK signals from BIU, ROU sends requessted status value to BIU. During reception, RXD LED flicks. During tramsmission, on the other hand, TXD LED flicks. At this time, you need to check if whether to use a corresponding ROU is checked on (See "whether to use BIU OEU/ROU"). Confidential & Proprietary 96/99 ROU Optic Comp Operation ROU has the function of automatically compensating for optical loss. It can do the work for up to 5dBo of optical loss. Set TX OPTIC COMP of ROU as "ON." Optical compensation of ROU can not be made without communication with such units in upper level as ODU or OEU. For 1dBo of optical loss, basic TX OPTIC ATT is 12dB; for 5dBo of optical loss, TX OPTIC ATT is 4dB. OPTIC COMP works only one time before it stays dormant. The figure below shows a screen for OPTIC Information in ROU GUI. LD POWER means output level of ROU Laser Diode, which is sent to a upper unit by ROU. PD POWER means input level of Photo Diode to be received from a upper unit. During optical compensation, the Result window shows "Processing" and then a result value. There are three types of results as follows:

1. Success: The optical compensation is normally made. 2. Over Optic Loss: Generated optical loss is 5dBo or more. 3. Communication Fail: Communication with ROU is in poor conditin. If ROU does not make optical compensation, there will be erors in the budget of system link. It can cause lower output level or make Spurious Emission not satisfying for a standard. RDU Setting Insert an RDU+BPF assembly you want to offer service with it and then connect the Multiplexer with interface cable (See Sector 5: How to install RDU at the INSTALL part). Confidential & Proprietary 97/99 Through GUI, check if the ID of RDU module is inquired at LEFT, MIDDLE and RIGHT slots of RDU. When you select the tab of a corresponding slot (LEFT, MIDDLE and RIGHT) from the main window of ROU, you can inquire and set the status of a corresponding RDU module. Set HPA of a corresponding RDU as ON. Use TX OUTPUT AGS function and set it as a desired output level. The table below shows maximally available Composit Powerlevels that can be set per band:

RDU Band Power that can be Setting range 700PS 800PS 850Cellular 900I+Paging 1900PCS AWS-1 VHF UHF maximally set 23dBm 23dBm 23dBm 23dBm 26dBm 26dBm 24dBm 24dBm 0 ~ 23dBm 0 ~ 23dBm 0 ~ 23dBm 0 ~ 23dBm 0 ~ 26dBm 0 ~ 26dBm 0~24dBm 0~24dBm AGS function enables you to adjust output power as you like. While the AGS function is being executed, the Result window shows "Processing" and then a result value. There are three types of results as follows:

A. Success: The AGS function is normally made. Confidential & Proprietary 98/99 B. Not Opterate OPTIC Comp: Optic Comp is not executed. C. Lack of ATT: There is no attenuation available. Use various upper/lower limits. The following table shows recommended limit settings:

Item Recommended Limit Remark TX OUTPUT HIGH ALM TX OUTPUT LOW ALM TX OUTPUT ALC TX OUTPUT SD RX ALC Max Composit Power+1dB 0dBm Max Composit Power Max Composit Power+2dB

-45dBm Alarm Alarm Auto Level control Shutdown If TX OUTPUT HIGH ALM is higher than a setting value, alarms will be genrated. If TX OUTPUT LOW ALM is lower than a setting value, alarms will be genrated. TX OUTPUT HIGH ALM/LOW ALM tends to work only as warning. When you activate (ON) TX OUTPUT ALC, outputs will be restricted depending on a setting output value. When you activate (ON) TX OUTPUT SD, output will be turned OFF once output power level reaches the same as SD setting value. Upon SD operation, check output level after 10 minutes and then check the status again. When you activate (ON) RX ALC, inputs will be restricted depending on a setting value. As described above, when normal output level and alarm limit values are set, you need to check if the value of MODULE FAILUER LED Indicator is normally seen green. For unused bands, you need to use band turning-ON/-OFF function to turn them off. Once a RDU band is turned off, its status value will not be used in case of alarms. Confidential & Proprietary 99/99