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GSM1900 BAND 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This is an unpublished work the copyright in which vests in Comba International ("Comba").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 authorized 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-1910 QI
ENU Status : 1-1-1
INSTALLATION GUIDE FOR SR-1910
SR-1910
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:
International Documentation Centre
Comba Telecom
Page 1
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Related Manuals for Comba Telecom SR-1910
Summary of Contents for Comba Telecom SR-1910
- Page 1 INSTALLATION GUIDE FOR SR-1910 SR-1910 GSM1900 BAND ADJUSTABLE REPEATER INSTALLATION GUIDE 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all enquiries should be directed in the first instance: International Documentation Centre Comba Telecom This is an unpublished work the copyright in which vests in Comba International ("Comba").
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Page 2: Table Of Contents
SERVICING POLICY AND RETURN OF EQUIPMENT ............10 0.10 READERS COMMENTS ......................11 SR-1910 REPEATER INTRODUCTION ................12 EQUIPMENT DESCRIPTION....................14 SR-1910 FUNCTIONAL BLOCK DIAGRAM ................14 GENERAL APPLICATIONS ....................15 EQUIPMENT LAYOUT......................16 EQUIPMENT CONSTITUTION ....................17 INSTALLATION ........................18 WARNINGS AND ALERTS .................... - Page 3 INSTALLATION GUIDE FOR SR-1910 4.6.1 ALARM ACKNOWLEDGEMENT ................... 36 COMMISSIONING PROCEDURES ..................37 MAINTENANCE ........................38 APPENDICES......................... 39 APPENDIX A: TOOLS......................39 APPENDIX B: RMA (RETURN MATERIAL AUTHORIZATION) FORM ........ 40 Copyright - refer to title page SR-1910 QI Page 3...
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Page 4: Index To Figures And Tables
INSTALLATION GUIDE FOR SR-1910 0.3 INDEX TO FIGURES AND TABLES Figure 1: Front, side and bottom views of the SR-1910 enclosure............13 Figure 2: SR-1910 functional block diagram....................14 Figure 3: Centralized remote control and monitoring ................15 Figure 4: Centralized local control and monitoring ..................15 Figure 5: Layout of the SR-1910........................ -
Page 5: History
INSTALLATION GUIDE FOR SR-1910 0.4 HISTORY Change No. Details Of Change 1-0-0 First developed and issued in April 2007. 1-1-0 Document is restructured, sections of KOP and Maintenance deleted; description on Master and Slave Unit revised. 1-1-1 Address of HK office has been updated... -
Page 6: Issue Control
INSTALLATION GUIDE FOR SR-1910 0.5 ISSUE CONTROL Date Section Copyright - refer to title page SR-1910 QI Page 6 ENU Status : 1-1-1... -
Page 7: References
INSTALLATION GUIDE FOR SR-1910 0.6 REFERENCES 0.6.1 SR-1910-C1/C2 SR-1910 GSM900 Indoor Band Adjustable Repeater SR-1910-1001YH Original Manual, released in August, 2006 0.6.2 SR-1910 DS 2-2-2 Datasheet released on 26-Mar-2007. 0.6.3 OMT v3.20 QE 1-1-0 OMT product user manual released in Feb 2007. -
Page 8: Glossary Of Terms
INSTALLATION GUIDE FOR SR-1910 0.7 GLOSSARY OF TERMS Abbreviation Definition Automatic Level Control Attenuator Base Transceiver Station Channel Cross Sectional Area Decibel Decibels relative to 1 milliwatt Downlink Donor Terminal Duplexer Frequency Selection Frequency Selection Amplifier Global Standard for Mobile Communication... -
Page 9: Safety Notices And Admonishments
INSTALLATION GUIDE FOR SR-1910 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
INSTALLATION GUIDE FOR SR-1910 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-1910 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 may occur. In order that any amendment/remedial action can be carried out promptly, it is necessary to fill out and return a photocopy of this customer reply sheet as soon as possible. -
Page 12: Sr-1910 Repeater Introduction
The enclosure is designed for indoor and sheltered outdoor environment – waterproof, damp-proof and omni-sealed (IP55). Two product variants exist with SR-1910 – please refer to the product label for the identifier code to confirm exact product variant. Identifier Code... - Page 13 INSTALLATION GUIDE FOR SR-1910 The following figure shows the enclosure of the SR-1910. Figure 1: Front, side and bottom views of the SR-1910 enclosure End of section Copyright - refer to title page SR-1910 QI Page 13 ENU Status : 1-1-1...
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Page 14: Equipment Description
External Power Figure 2: SR-1910 functional block 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 filtering through the Frequency Selection (FS) Module. -
Page 15: General Applications
INSTALLATION GUIDE FOR SR-1910 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). -
Page 16: Equipment Layout
INSTALLATION GUIDE FOR SR-1910 2.3 EQUIPMENT LAYOUT Shown below is the internal layout of the SR-1910. Wireless Modem RF Integrated Module Integrated DL Integrated UL Duplexer Duplexer Figure 5: Layout of the SR-1910 Copyright - refer to title page SR-1910 QI... -
Page 17: Equipment Constitution
INSTALLATION GUIDE FOR SR-1910 2.4 EQUIPMENT CONSTITUTION The typical SR-1910 unit consists of the following components: Integrated Duplexer (DPX): The DPX is located towards the DT and MT terminals and permits the uplink and downlink signals to share a common antenna. The DL DPX is integrated with function of DL LNA to pre-amplify signals;... -
Page 18: Installation
INSTALLATION GUIDE FOR SR-1910 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 19: Site Planning Considerations
INSTALLATION GUIDE FOR SR-1910 3.2 SITE PLANNING CONSIDERATIONS Site Considerations The repeater is designed for indoor / sheltered outdoor installation and operation. Installation Location Mounting surface shall be capable of supporting the weight of the equipment. In order to avoid electromagnetic interference, a proper mounting location must be selected to minimize interference from electromagnetic sources such as large electrical equipment. -
Page 20: Installation Checklist
INSTALLATION GUIDE FOR SR-1910 3.2.1 INSTALLATION CHECKLIST • Working space available for installation and maintenance for each mounting arrangement. Ensure unrestricted airflow. • Ensure earthing point is within reach of the ground wire. • Ensure a power source is within reach of the power cord. And the power source has sufficient capacity (about 3.15A for AC). -
Page 21: Installation Procedures
See Appendix A for a full list of the recommended tools required for installation and routine maintenance. 3.3.3 MOUNTING ARRANGEMENT The mounting arrangement of the SR-1910 is designed for wall mounting. The figure below shows the location of the holes for the mounting tabs. -
Page 22: Wall Mounting Details
INSTALLATION GUIDE FOR SR-1910 3.3.4 WALL MOUNTING DETAILS The following describes the mounting of equipment to a wall. • Drill holes on the wall for masonry bolts according to the dimension of the upper/lower mounting tabs indicated in Figure 6. -
Page 23: Equipment Connectors
INSTALLATION GUIDE FOR SR-1910 3.4 EQUIPMENT CONNECTORS The SR-1910 is designed for all cable entries from the bottom of the enclosure, as shown in the following figure. ALM RUM MODEM RS-485 AC 220V EXT ALM RS-232 Figure 8: Equipment connectors... -
Page 24: Equipment Connections
INSTALLATION GUIDE FOR SR-1910 3.5 EQUIPMENT CONNECTIONS 3.5.1 GROUNDING CONNECTION 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 ground terminal of the AC supply. -
Page 25: Physical Connection To Omt Pc
INSTALLATION GUIDE FOR SR-1910 3.5.5 PHYSICAL CONNECTION TO OMT PC The local commissioning and management of the SR-1910 can be achieved by local connection of the equipment to the OMT PC. To establish the connection between the OMT and the equipment, connect the RS-232 port located on the bottom of the enclosure of the Master Unit or Slave Unit to the serial port of the OMT PC using the supplied RS-232 cable. -
Page 26: Ext_Alm Connection
Note2: The equipment should be powered off when connecting the connectors. 3.5.7 EXT_ALM CONNECTION Four alarm inputs to the SR-1910 are provided on the EXT_ALM port, which is a 7-pin round connector. The following figure and table shows the pin allocation and definition. Pin numbering are shown looking-into the connector on the enclosure. -
Page 27: Preparation For Remote Control Of Equipment Using Wireless Modem
INSTALLATION GUIDE FOR SR-1910 3.6 PREPARATION FOR REMOTE CONTROL OF EQUIPMENT USING WIRELESS MODEM Wireless Modem For the equipment variant equipped with wireless modem, the modem provides the option of remote connection of the equipment via the OMT. The wireless (GSM) modem implements the link for data and SMS functions. - Page 28 INSTALLATION GUIDE FOR SR-1910 Wireline Modem For the equipment variant equipped with wireline modem, the modem provides the link for data and alarm code. The following figure shows the diagram of the wireline modem. Figure 13: Diagram of wireline modem RS232 and VDC Input ports are pre-wired to the equipment.
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Page 29: Commissioning
INSTALLATION GUIDE FOR SR-1910 4 COMMISSIONING 4.1 PRE-COMMISSIONING TASKS After equipment installation, perform the following steps before equipment power up and commissioning. Verify the incoming power source voltage, current, and power levels do not violate any ratings. Double check all connections before applying power. Do not manipulate circuits or make changes with power applied. -
Page 30: Omt
The OMT software is based on Windows operating system, and is designed for monitoring and maintaining of Comba repeaters and boosters. For SR-1910 repeater, the OMT software can accomplish the following functions: • To configure and adjust the repeater’s operating parameters •... -
Page 31: Omt Software Installation
INSTALLATION GUIDE FOR SR-1910 4.3.1 OMT SOFTWARE INSTALLATION Refer to Reference 0.6.3 for installing OMT software. After installing the OMT software on the PC, connection to the equipment can be done directly or remotely. 4.3.2 OMT SOFTWARE VERSION OMT software is designed to be backward compatible, to view the OMT software version, select [Help] ->... -
Page 32: Description Of Parameters
INSTALLATION GUIDE FOR SR-1910 4.5 DESCRIPTION OF PARAMETERS The parameters being described are applicable to SR-1910 product variants C1 and C2. The output power differs for different product variant when connected to the OMT. Upon successful connection between the OMT and the equipment, equipment parameters can be read and/or set. -
Page 33: Rf Information
4.5.2 RF INFORMATION It includes: Switch (including Carrier Switch and RF Switch), Channel No., Pre-ATT, Alarm Threshold, Power, Gain, Temperature and Alarm Config. The SR-1910 RF parameters are listed in the following table with description provided. Node Name Description [Switch] It includes [RF Switch]. -
Page 34: Alarm Information
OMT screen. Up to four external devices can be connected to the SR-1910 via the EXT_ALM connector on the enclosure, by doing that, the working status of external devices can be monitored by the OMT. Alarm information will be indicated in the External alarm window. -
Page 35: Properties Information
INSTALLATION GUIDE FOR SR-1910 4.5.4 PROPERTIES INFORMATION [Properties Info] is equipment specific. For the SR-1910, it includes Equipment ID, Firmware Info., Equipment Info., Site Location, Comm. Config and Trigger Report. Click on the specific property information node to view details. -
Page 36: Alarm Acknowledgement
Low alarm maintenance section). If it is, the battery should be replaced. External Alarm If either of the external devices connected to the SR-1910 is indicated at fault, check the external devices according to Table 4. Table 11: Alarm diagnosis... -
Page 37: Commissioning Procedures
Commissioning Tasks Observation 1. Set on-line and inquiry • Activate the SR-1910 OMT main window. Select ‘Online’ to status. access the equipment’s status. If there are alarms, check the causes of failure and proceed to clear the alarm. •... -
Page 38: Maintenance
INSTALLATION GUIDE FOR SR-1910 5 MAINTENANCE The system is designed for trouble-free operation and generally does not need maintenance. Maintenance activities should only be carried out by trained personnel if required. The equipment operation status can be observed remotely through OMT/OMC. -
Page 39: Appendices
INSTALLATION GUIDE FOR SR-1910 6 APPENDICES 6.1 APPENDIX A: TOOLS The following are the recommended list of tools for new installation and routine maintenance. • Slotted Screwdriver • Philips Screwdriver • Ring Spanner (Assorted size: 12~20mm) • Electrically operated drill and masonry drill bits ∅12mm •... -
Page 40: Appendix B: Rma (Return Material Authorization) Form
INSTALLATION GUIDE FOR SR-1910 6.2 APPENDIX B: RMA (RETURN MATERIAL AUTHORIZATION) FORM End of section End of Document Copyright - refer to title page SR-1910 QI Page 40 ENU Status : 1-1-1...
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