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COMBA SR-9120 Installation Manual

Bandwidth adjustable repeater
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GSM900 BANDWIDTH ADJUSTABLE
This is an unpublished work the copyright in which vests in Comba International ("Comba"). All rights reserved.
The information contained herein is confidential and the property of Comba and is supplied without liability for errors or
omissions. No part may be reproduced, disclosed or used except as authorised by contract or other written permission. The
copyright and the foregoing restriction on reproduction and use extend to all media in which the information may be embodied.
SR-9120 QI
ENU Status : 1-0-1
INSTALLATION GUIDE FOR SR-9120
SR-9120
REPEATER
INSTALLATION GUIDE
Copyright - refer to title page
The information contained herein is the
responsibility of and is approved by the
following, to whom all enquiries should
be directed in the first instance:
Technical writing
Comba Telecom Ltd.
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Summary of Contents for COMBA SR-9120

  • Page 1 This is an unpublished work the copyright in which vests in Comba International ("Comba"). All rights reserved. The information contained herein is confidential and the property of Comba and is supplied without liability for errors or omissions. No part may be reproduced, disclosed or used except as authorised by contract or other written permission. The copyright and the foregoing restriction on reproduction and use extend to all media in which the information may be embodied.

  • Page 2: Table Of Contents

    INSTALLATION GUIDE FOR SR-9120 0.2 CONTENTS Section Page CONTENTS ........................... 2 INDEX TO FIGURES AND TABLES ..................4 HISTORY..........................5 ISSUE CONTROL ......................... 6 REFERENCES ........................7 GLOSSARY OF TERMS ....................... 8 SAFETY NOTICES AND ADMONISHMENTS..............9 SERVICING POLICY AND RETURN OF EQUIPMENT ............. 10 0.10...
  • Page 3 INSTALLATION GUIDE FOR SR-9120 APPENDIX A: TOOLS FOR INSTALLATION AND MAINTENANCE ......... 45 APPENDIX B: CHANNEL NUMBER AND FREQUENCY TABLE ........46 APPENDIX C: OMT INSTALLATION AND UN-INSTALLATION ........51 APPENDIX D: RMA (RETURN MATERIAL AUTHORIZATION) FORM......55 SR-9120 QI...

  • Page 4: Index To Figures And Tables

    INSTALLATION GUIDE FOR SR-9120 0.3 INDEX TO FIGURES AND TABLES Figure 1: Front, side and bottom views of SR-9120 enclosure..............13 Figure 2: SR-9120 system diagram ......................14 Figure 3: Centralized remote control and monitoring ................... 15 Figure 4: Centralized local control and monitoring ..................15 Figure 5: Remote control and monitoring for single equipment..............

  • Page 5: History

    INSTALLATION GUIDE FOR SR-9120 0.4 HISTORY Change No. Details Of Change 1-0-0 Document created on 22 Jan, 07 1-0-1 Updated Hongkong office address in Feb 2008 SR-9120 QI Copyright - refer to title page Page 5 ENU Status : 1-0-1...

  • Page 6: Issue Control

    INSTALLATION GUIDE FOR SR-9120 0.5 ISSUE CONTROL Date Section SR-9120 QI Copyright - refer to title page Page 6 ENU Status : 1-0-1...

  • Page 7: References

    INSTALLATION GUIDE FOR SR-9120 0.6 REFERENCES 0.6.1 RS-2110B QE 1-0-0 RS-2110B GSM900 Bandwidth Adjustable Repeater Released in August, 2005 Equipment Manual, RS-2110B = SR-9120 0.6.2 SR-9120 DS 3-1-2 SR-9120 GSM900 Bandwidth Adjustable Repeater released on Jan-05-2007 Datasheet SR-9120 QI Copyright - refer to title page...

  • Page 8: Glossary Of Terms

    INSTALLATION GUIDE FOR SR-9120 0.7 GLOSSARY OF TERMS Acronym Definition Automatic Level Control Attenuation Base Station Base Transceiver Station CDMA Code Division Multiple Access Cross Sectional Area Decibel Decibels relative to 1 milliwatt Downlink Duplexer Donor Terminal EEPROM Electrically Erasable Programmable Read Only Memory...

  • Page 9: Safety Notices And Admonishments

    INSTALLATION GUIDE FOR SR-9120 0.8 SAFETY NOTICES AND ADMONISHMENTS This document contains safety notices in accordance with appropriate standards. In the interests of conformity with the territory standards for the country concerned, the equivalent territorial admonishments are also shown. Any installation, adjustment, maintenance and repair of the equipment must only be carried out by trained, authorized personnel.

  • Page 10: Servicing Policy And Return Of Equipment

    0.9 SERVICING POLICY AND RETURN OF EQUIPMENT The repair of individual units and modules of this equipment is not considered practicable without factory facilities. It is, therefore, the policy of Comba whereby faulty units or modules are returned to the local agent for repair.

  • Page 11: Readers Comments

    INSTALLATION GUIDE FOR SR-9120 0.10 READERS COMMENTS Whilst every endeavour is made to ensure the accuracy of this and all Comba documents, there is always the possibility that an inaccuracy or omission could occur. In order that any amendment/remedial action can be carried out promptly, we would appreciate your co–...

  • Page 12: General Information

    • The enclosure is designed for all weather environment - waterproof, damp-proof and omni-sealed (IP55). Two product variants exist with SR-9120 – please refer to the product label for the identifier code to confirm exact product variant. Identifier Code Main Features SR-9120-C2 With integrated wireless modem.
  • Page 13 INSTALLATION GUIDE FOR SR-9120 The figure below shows the front, side and bottom views of the SR-9120 enclosure: Figure 1: Front, side and bottom views of SR-9120 enclosure End of Section SR-9120 QI Copyright - refer to title page Page 13...

  • Page 14: Equipment Description

    External Power Figure 2: SR-9120 system diagram In downlink, the BTS signals are received by donor antenna of the repeater. After the duplexer, the signals are sent to the LNA for pre-amplification, followed by band selection by the Frequecny Selection (FS) Module.

  • Page 15: General Applications

    INSTALLATION GUIDE FOR SR-9120 2.2 GENERAL APPLICATIONS Centralized Control and Monitoring Centralized control and monitoring is applicable for indoor systems employing several indoor repeaters. For remote control and monitoring, the operating status of each remotely-connected slave repeater can be monitored by the OMC through the Master Unit (with integrated wireless modem). The Master Unit is locally connected with the Slave Unit via RS-485 communication bus.
  • Page 16 INSTALLATION GUIDE FOR SR-9120 Remote Control and Monitoring of Single Equipment In addition to being monitored by OMT locally, a group of repeaters can be remotely controlled and monitored by OMT/OMC. Remote control and monitoring of single equipment is applicable for indoor system with small coverage requirement.

  • Page 17: Equipment Layout

    INSTALLATION GUIDE FOR SR-9120 2.3 EQUIPMENT LAYOUT The following figure shows the internal layout of the SR-9120 enclosure: DL FSA UL FSA RS-232 Grounding Pole Figure 6: SR-9120 Equipment Internal View SR-9120 QI Copyright - refer to title page Page 17...

  • Page 18: General Description

    INSTALLATION GUIDE FOR SR-9120 2.4 GENERAL DESCRIPTION The SR-9120 consists of the following: VSWR Testing Module: This is located towards the DT port and is used to detect VSWR of the DT Port and provide the coupling of RF signals for the wireless Modem.

  • Page 19: Kit Of Parts (Kop)

    INSTALLATION GUIDE FOR SR-9120 2.5 KIT OF PARTS (KOP) For each SR-9120, the following are supplied Product Identifier Description Quantity P-4000YL-5107 Mounting Rack for wall or pole mounting M10x110 Masonry Bolt for wall mounting M10x85x110 U Bolt for pole mounting...

  • Page 20: Installation

    INSTALLATION GUIDE FOR SR-9120 3 INSTALLATION 3.1 WARNINGS AND ALERTS Radio Frequency Energies There may be situations, particularly for workplace environments near high-powered RF sources, where recommended limits for safe exposure of human beings to RF energy could be exceeded. In such cases, restrictive measures or actions may be necessary to ensure the safe use of RF energy.

  • Page 21: Site Planning Considerations

    Humidity and temperature have an adverse effect on the reliability of the equipment. It is recommended to install the equipment in locations having stable temperature and unrestricted air-flow. The SR-9120 equipment is designed to operate at the temperature range and humidity level as stated in the product specifications in Reference 0.6.2.

  • Page 22: Equipment Installation Checklist

    DB9 -DB9 Implements local connection mark Implements the bus mode local control and Communication bus DB9-RJ45 monitoring system. Table 4: Cable types used with SR-9120 enclosure SR-9120 QI Copyright - refer to title page Page 22 ENU Status : 1-0-1...

  • Page 23: Installation Procedures

    Without documentary evidence, a claim cannot be processed. Open and check each package against the packing list. For any missing item, contact Comba Telecom Systems. Do not remove items from packing materials until ready for installation.

  • Page 24: Mounting Arrangement

    INSTALLATION GUIDE FOR SR-9120 3.3.4 MOUNTING ARRANGEMENT The figure below shows the mounting bracket for use with the enclosure. Figure 7: Mounting rack dimensions The mounting rack is pre-installed to the enclosure prior to shipment. Before commencing with wall or pole mounting, user needs to unscrew and remove the two sets of hex bolts (M8x25mm) on the equipment with a ring spanner.

  • Page 25: Mounting Mounting Option

    Wall Mounting Rack Plain Washer M10 Spring Washer M10 Nut M10 Enclosure Plain Washer M8 Hex Bolt M8 x 25 Figure 8: Wall mounting of SR-9120 SR-9120 QI Copyright - refer to title page Page 25 ENU Status : 1-0-1...

  • Page 26: Pole Mounting Details

    Figure 9: Pole mounting of SR-9120 3.3.7 DRIP-LOOP Comba recommends that every horizontal cable entry to the equipment forms a 'U' before its entry to the equipment. Any accumulated water on the cable will drip down at the bottom of the loop and will not accumulate at the equipment connectors.

  • Page 27: Equipment Connections

    RS-232 port RS-485 port SIM card slot Figure 10: Connection for SR-9120 Ground Connection To ensure safe operation of the product, a ground (earth) connection is required. For single phase AC power source, the product must be grounded by connecting the “earth wire” of the power cord to the grounding terminal of the AC supply.
  • Page 28 INSTALLATION GUIDE FOR SR-9120 OMT Connection Local commissioning and management is achieved through the RS-232 port located on the bottom of the enclosure. The RS-232 port is connected to the RS-232 port of the PC via the RS-232 commissioning cable supplied.
  • Page 29 Open the bottom cover and locate the Li-ion battery switch, and then set the switch to the desired position to connect the Li-ion battery. M/S Unit Switch is reserved for future use and not applicable for the current model of SR-9120. Backup Battery...

  • Page 30: Commissioning

    INSTALLATION GUIDE FOR SR-9120 4 COMMISSIONING 4.1 MCU LED INDICATORS Three diagnostic LED indicators are located on the bottom of the enclosure. Each LED indicates the status of a particular function: Identifier Indication Colour ALARM System Alarm. ON = Alarm generated. OFF = No alarm Green Operation.

  • Page 31: Omt

    OMC software with remote connection to the equipment via a wireline/wireless modem. OMT software is based on Windows operation system, and is designed for monitoring and maintaining of Comba repeaters and boosters. For SR-9120 repeater, the OMT software performs the following functions: • Configures and adjusts the repeater’s operating parameters.

  • Page 32: Physical Preparation For Omt Connection To Equipment

    The DB9 interface mates with the ‘RS-485” Port, and the RJ-45 plug mates with a standard “female to female x8 way” RJ-45 socket adaptor (Comba ERP code : 102303-003005-00). Up to 32 Slave units can be cascaded in this manner.

  • Page 33: Omt Communicating With Equipment

    • Direct serial link connection for local management • Remotely managing a group of SR-9120 units through wireless modem connection. Local Connection Local connection is achieved through connecting the serial port of PC to the RS-232 port of Master/Slave Unit via the supplied RS-232 cable. Local connection is set by default.
  • Page 34 INSTALLATION GUIDE FOR SR-9120 The default settings of serial port are: Bit rate = 9600, No parity check, 1 stop bit. Select COM port (typically COM 1 or COM 2). Select the desired communication port and click ‘OK’ button. Then the OMT main window will appear automatically, followed by a pop-up message ‘Online OK’...
  • Page 35 INSTALLATION GUIDE FOR SR-9120 Switching between Master Unit and Slave Unit When Slave Unit is included in a centralized control and monitoring System, the “switch” button on the OMT allows the operating status to be switched between Master and Slave units. The switching from Master Unit to Slave Unit depends on the following conditions: •...

  • Page 36: Description Of Parameters

    Master Unit. Figure 19: Master Unit Main Screen The following parameters are applicable for all SR-9120 variants. 4.3.6.1 SITE ID Site ID is the unique identifier of the equipment and is used to identify which equipment is locally connected to the OMT.
  • Page 37 INSTALLATION GUIDE FOR SR-9120 4.3.6.2 NETWORK PARAMETER Network Parameter of Master Unit The following are the network parameters for the Master Unit: Master Site Address The identification of the master site. Valid ID must be a string of unique six alphanumeric characters.
  • Page 38 INSTALLATION GUIDE FOR SR-9120 4.3.6.3 SLAVE DISTRIBUTION PARAMETER Slave Distribution Parameter refers to the slave site ID in a centralized control and monitoring system. A maximum of 32 Slave units can be cascaded in this system. The site ID of each Slave Unit must be unique to ensure the proper communication between Master and Slave units.
  • Page 39 INSTALLATION GUIDE FOR SR-9120 4.3.6.4 RF PARAMETERS RF Parameter of Master Unit The RF parameters are located on the right half of the OMT Main Window. Identifier Purpose Setting1 Setting 2 Initial Setting PA Switch Turns off the DC power ‘ON’...
  • Page 40 The operation of RF parameter read/set of Slave Unit is the same as that of Master Unit. 4.3.6.5 ALARM LIST The Alarm list for the SR-9120 is shown below. These can be enabled/disabled with the OMT/OMC by placing ticking the check box against the required alarm condition, followed by “Set” command.
  • Page 41 INSTALLATION GUIDE FOR SR-9120 For every five dial-up attempts, the equipment will be resetted automatically; any alarm messages held within the equipment will be cleared. 4.3.6.7 FIRMWARE UPDATE This involves the firmware held in the MCU. The version number is shown on the upper right of the OMT Main Window.

  • Page 42: Commissioning Procedures

    Commissioning Tasks Observation • On-line and inquiry status In the SR-9120 Main window, select ‘online’ to access the repeater’s status. If there is alarm, check the cause of failure and proceed to clear the alarm. • Set system and device ID, and other network parameters.

  • Page 43: Operation

    INSTALLATION GUIDE FOR SR-9120 5 OPERATION After nstallation and commissioning, occasional operational tasks to handle alarms may be required: Alarm Diagnosis Power Down/ Check AC power cable and verify AC mains supply is normal. During Power Fault alarm Power Fault alarm, DC power supply has no output voltage. Verify that the otput power is not overloaded or short-circuited.

  • Page 44: Maintenance

    Verify lightning and grounding protection is in good condition. • For Li-ion back-up battery, verify their state. Deeply discharged battery should be return to Comba for replacement. To check the Li-ion battery: switch off the AC power supply after operating for 24 hours. If the voltage of the Li-on battery drops to below 16V within one hour, the Li-ion battery has been over-discharged and replacement of the battery is recommended.

  • Page 45: Appendices

    INSTALLATION GUIDE FOR SR-9120 7 APPENDICES 7.1 APPENDIX A: TOOLS FOR INSTALLATION AND MAINTENANCE The following is the recommended list for new installation and routine maintenance: Description Slotted screwdriver Philips screwdriver Electrically operated drill and masonry drill bit for M 12 hole...

  • Page 46: Appendix B: Channel Number And Frequency Table

    INSTALLATION GUIDE FOR SR-9120 7.2 APPENDIX B: CHANNEL NUMBER AND FREQUENCY TABLE UL Freq. DL Freq. UL Freq. DL Freq. Band Channel Channel (MHz) (MHz) (MHz) (MHz) 885.2 930.2 892.6 937.6 1000 885.4 930.4 892.8 937.8 1001 885.6 930.6 893.0 938.0...
  • Page 47 INSTALLATION GUIDE FOR SR-9120 UL Freq. DL Freq. UL Freq. UL Freq. Band Channel Channel (MHz) (MHz) (MHz) (MHz) 900.0 945.0 907.6 952.6 900.2 945.2 907.8 952.8 900.4 945.4 908.0 953.0 900.6 945.6 908.2 953.2 900.8 945.8 908.4 953.4 901.0 946.0...
  • Page 48 INSTALLATION GUIDE FOR SR-9120 UL Freq DL Freq DL freq Band Channel Channel UL freq (MHz) (MHz) (MHz) (MHz) EGSM(1) 880.2 925.2 882.8 927.8 880.4 925.4 883.0 928.0 880.6 925.6 883.2 928.2 880.8 925.8 883.4 928.4 881.0 926.0 883.6 928.6 881.2...
  • Page 49 INSTALLATION GUIDE FOR SR-9120 UL freq DL freq UL freq DL freq Band Channel Channel (MHz) (MHz) (MHz) (MHz) PGSM 890.2 935.2 902.6 947.6 890.4 935.4 902.8 947.8 890.6 935.6 903.0 948.0 890.8 935.8 903.2 948.2 891.0 936.0 903.4 948.4 891.2...
  • Page 50 INSTALLATION GUIDE FOR SR-9120 UL freq DL freq UL freq DL freq Band Channel Channel (MHz) (MHz) (MHz) (MHz) PGSM 897.2 942.2 909.6 954.6 897.4 942.4 909.8 954.8 897.6 942.6 910.0 955.0 897.8 942.8 910.2 955.2 898.0 943.0 910.4 955.4 898.2...

  • Page 51: Appendix C: Omt Installation And Un-Installation

    Comba products. It connects to the equipment either by local connection via RS-232 cable, or remote connection via wireline/wireless modem. The OMT for SR-9120 is comprises of two parts: Explorer and Component, Both softwares need to be installed/un-installed separately, Part A: Requirements for OMT Before installation of OMT, ensure the following requirements for running OMT software are met.
  • Page 52 INSTALLATION GUIDE FOR SR-9120 Part B: Installing OMT Explorer V2.10 Insert the installation CD of OMT Explorer V2.10 into the CD-ROM, and double click the setup “*.exe” file. When the message box appears, select ’Next’, and the following pop-up window appears: Figure 22: OMT Explorer V2.10 Installation Window...
  • Page 53 INSTALLATION GUIDE FOR SR-9120 Part C: Installing OMT Component V 1.00 Copy the installation files by creating a new folder on the hard disk Double click the ‘setup’ file and follow the installation steps by clicking “Next” button until the following window appears.
  • Page 54 INSTALLATION GUIDE FOR SR-9120 Figure 26: OMT Component V1.00 Un-installation Finish Message Part E: Un-installing OMT Explorer V2.10 Perform the following steps to uninstall the OMT Explorer V2.10 software from the PC: Select “START” -> “Settings” -> “Control Panel” Select “Add/Remove Programs” -> “OMT Explorer V2.10” -> “Add/Remove (R)…”...

  • Page 55: Appendix D: Rma (Return Material Authorization) Form

    INSTALLATION GUIDE FOR SR-9120 7.4 APPENDIX D: RMA (RETURN MATERIAL AUTHORIZATION) FORM End of section End of Document SR-9120 QI Copyright - refer to title page Page 55 ENU Status : 1-0-1...

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