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GSM1800 BANDWIDTH ADJUSTABLE
+ WCDMA2100 CHANNEL SELECTIVE
This is an unpublished work the copyright in which vests in Comba International ("Comba").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.
RD-7843 QI
ENU Status : 1-0-0
INSTALLATION GUIDE FOR RD-7843
RD-7843
DUAL BAND 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.
Page 1
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Related Manuals for COMBA RD-7843
Summary of Contents for COMBA RD-7843
- Page 1 This is an unpublished work the copyright in which vests in Comba International ("Comba").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 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.
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Page 2: Table Of Contents
SERVICING POLICY AND RETURN OF EQUIPMENT............10 0.10 READERS COMMENTS......................11 GENERAL INFORMATION....................12 RD-7843 INSTRODUCTION ....................12 EQUIPMENT DESCRIPTION ....................13 RD-7843 FUNCTIONAL BLOCK DIAGRAM ...............13 EQUIPMENT LAYOUT ......................14 EQUIPMENT CONSTITUTION ...................14 KITS OF PARTS ........................15 INSTALLATION ........................16 WARNINGS AND ALERTS....................16 SITE PLANNING CONSIDERATIONS ................17 3.2.1... - Page 3 INSTALLATION GUIDE FOR RD-7843 OPERATION ........................37 MAINTENANCE........................38 APPENDICES ........................39 APPENDIX A: TOOLS ......................39 APPENDIX B: WCDMA2100 CHANNEL NUMBER AND FREQUENCY TABLE ....40 APPENDIX C: GSM1800 CHANNEL NUMBER AND FREQUENCY TABLE .....41 APPENDIX D: RMA (RETURN MATERIAL AUTHORIZATION) FORM ......44 RD-7843 QI...
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Page 4: Index To Figures And Tables
INSTALLATION GUIDE FOR RD-7843 0.3 INDEX TO FIGURES AND TABLES Figure 1: Views of RD-7843 enclosure ......................12 Figure 2: RD-7843 functional block diagram....................13 Figure 3: Layout of the RD-7843 ........................14 Figure 4: Mounting rack dimension ......................20 Figure 5: Wall mounting overview ........................ -
Page 5: History
INSTALLATION GUIDE FOR RD-7843 0.4 HISTORY Change No. Details Of Change 1-0-0 Document first created and released in Apr 2008. RD-7843 QI Copyright - refer to title page Page 5 ENU Status : 1-0-0... -
Page 6: Issue Control
INSTALLATION GUIDE FOR RD-7843 0.5 ISSUE CONTROL Date Section RD-7843 QI Copyright - refer to title page Page 6 ENU Status : 1-0-0... -
Page 7: References
INSTALLATION GUIDE FOR RD-7843 0.6 REFERENCES 0.6.1 RD-7843 DS 1-2-0 Datasheet released in Nov 2007. 0.6.2 OMT v3.2 QE 1-1-0 OMT v3.2 product manual released in Feb. 2007 RD-7843 QI Copyright - refer to title page Page 7 ENU Status : 1-0-0... -
Page 8: Glossary Of Terms
INSTALLATION GUIDE FOR RD-7843 0.7 GLOSSARY OF TERMS Abbreviation Definition Automatic Level Control Attenuator Base Transceiver Station Channel Decibel Decibels relative to 1 milliwatt Circular Plastic Connector Downlink Donor Terminal Duplexer EEPROM Electrically Erasable Programmable Rom Frequency Selection Global Standard for Mobile Communication... -
Page 9: Safety Notices And Admonishments
INSTALLATION GUIDE FOR RD-7843 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
Repair Material Authorization (RMA) should be completed giving the required information. A sample RMA form is provided in Appendix D. This request must be included with the item for repair, items for repair should be sent to the nearest Comba office: COMBA TELECOM LTD. -
Page 11: Readers Comments
INSTALLATION GUIDE FOR RD-7843 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, it is necessary to fill out and return a photocopy of this customer reply sheet as soon as possible. -
Page 12: General Information
PC or wireless modem to the OMT/OMC. Internal Li-ion backup battery ensures alarm signals are sent out during power failure. The RD-7843 comes in a completely sealed, cast aluminum enclosure, suitable for all weather conditions. -
Page 13: Equipment Description
Selective Module Computer with Data card Power Li-ion Alarm Main Control Unit Supply BATT Indicator Modem Wireless Modem External Power Figure 2: RD-7843 functional block diagram RD-7843 QI Copyright - refer to title page Page 13 ENU Status : 1-0-0... -
Page 14: Equipment Layout
Wireless modem protector Li-ion battery Lock Figure 3: Layout of the RD-7843 2.3 EQUIPMENT CONSTITUTION Frequency Selector (FS) The FS is used to select the desired carriers and reject unwanted signals. Power Amplifier (PA) It fulfils power amplification in both UL and DL branches. -
Page 15: Kits Of Parts
The MCU is used to monitor and control the operation of the repeater and provides the communication interface for remote control and indicator. LED indicators (H1~H3 or L1~L4) indicate the respective operation status. There are two MCUs in the RD-7843, one for GSM unit and another for WCDMA unit. Power Supply Unit (PSU): The PSU converts the input voltage into a stable DC to provide power to the functional modules. -
Page 16: Installation
INSTALLATION GUIDE FOR RD-7843 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 17: Site Planning Considerations
INSTALLATION GUIDE FOR RD-7843 3.2 SITE PLANNING CONSIDERATIONS Site Considerations Outdoor equipment are designed to be waterproof, rainproof, and with snow protection. Temporary protection should be taken when the equipment enclosure is opened for installation or maintenance in an outdoor environment. The equipment must not be opened for installation or maintenance in bad weather (e.g. -
Page 18: Repeater Installation Checklist
INSTALLATION GUIDE FOR RD-7843 3.2.1 REPEATER INSTALLATION CHECKLIST Installation Location Requirement Considerations Ample space on mounting pole or wall surface Working space available Recommended space: 800mm x 800 mm x 800mm Power cord length is about 3m, use a dedicated AC breaker or There are two power supply options at fuse circuit, and with good access to an earth point. -
Page 19: Installation Procedures
Open and check each package against the packing list. If any items are missing, contact Comba. Do not remove items from anti-static packing until ready for installation. If damage is discovered at the time of installation, contact the shipping agent. -
Page 20: Mounting Rack Dimension
INSTALLATION GUIDE FOR RD-7843 3.3.4 MOUNTING RACK DIMENSION The following figure shows the dimension of mounting rack, which is used for mounting the equipment to either a wall or on a pole. Figure 4: Mounting rack dimension The mounting rack is pre-installed with the equipment during shipment. Follow the following steps to... -
Page 21: Wall Mounting Details
INSTALLATION GUIDE FOR RD-7843 3.3.5 WALL MOUNTING DETAILS The following describes the mounting of equipment to a wall. Drill four holes on the wall using the position of four holes on the mounting rack as a guide. Fix the mounting rack to the wall using four masonry bolts (M10x110mm). -
Page 22: Pole Mounting Details
3.3.7 DRIP-LOOP Comba recommends that every horizontal cable entry to the equipment forms a 'U' before its entry to the equipment. Water on the cable will drip down at the bottom of the loop and will not accumulate at the equipment connectors. -
Page 23: Equipment Connectors
INSTALLATION GUIDE FOR RD-7843 3.4 EQUIPMENT CONNECTORS The equipment has been designed for all cable entries from the bottom of the enclosure. WCDMA-MT WCDMA-DT GSM-MT GSM-DT Power Figure 7: Equipment connectors 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”... -
Page 24: Service Voltage Connection
With the enclosure opened, customer can connect the equipment to the PC directly via the RS-232 port (X29) on the distribution board of the GSM unit for local commissioning of the RD-7843. Note: Temporarily break the Li-ion battery connection before making the OMT connection. -
Page 25: Preparation For Remote Control Of Equipment Using Modem
INSTALLATION GUIDE FOR RD-7843 3.6 PREPARATION FOR REMOTE CONTROL OF EQUIPMENT USING MODEM Wireless Modem For the equipment variant equipped with wireless modem, the modem provides the option of remote connection of the equipment to the OMT. The wireless (GSM) modem implements the link for data and SMS. -
Page 26: Commissioning
INSTALLATION GUIDE FOR RD-7843 4 COMMISSIONING 4.1 MCU LED INDICATORS The WCDMA unit and GSM unit have their individual MCUs. For WCDMA unit, there are three diagnostic LEDs located on each MCU; each indicates the status of a particular function:... -
Page 27: Equipment Power-Up
INSTALLATION GUIDE FOR RD-7843 MCU Initialization The diagnostic LEDs L2, L3 and L4 will flash simultaneously at the time the equipment is powered up, indicating system self-check. About 60 seconds later, L3 will keep flashing at the rate of 1 flash/second. L2 will be ‘ON’... -
Page 28: Local Commissioning
INSTALLATION GUIDE FOR RD-7843 Master ATT Assistant ATT PW On/Off Oscillation On/Off Maximum output power (output power thresholds) Channel No. (Bandwidth setting) Alarm thresholds Temperature thresholds VSWR 4.5 LOCAL COMMISSIONING For the WCDMA unit and GSM unit have their individual MCUs and different OMT versions. Here below is to introduce one after another. -
Page 29: Using Omt Software (Gsm Unit)
INSTALLATION GUIDE FOR RD-7843 Select the desired communication port and click ‘OK’ button, the modem will be initialized. When modem initialization completes, click button on the toolbar, the following window will appear. Figure 14: Remote connection Enter the correct phone number and click ‘Dial’, wait until the system indicates ‘Online OK’. When Click the ‘online’... - Page 30 INSTALLATION GUIDE FOR RD-7843 Figure 16: OMT screenshot - communication setup In the Communication Setting window above, select the desired communication port and then click ‘Ok’ button to continue. Click the ‘Online’ button in the follow-up window. At this stage the OMT main window will appear, followed by a pop-up message ‘Online OK’.
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Page 31: Parameter Description
INSTALLATION GUIDE FOR RD-7843 Figure 17: OMT screen – online ok In the event of connection failure, a connection prompt will appear on the screen. Proceed to verify the following and re-attempt the connection: Check the power connection Check serial port selection Check speed setting for the port Check if the mains voltage is normal, and whether the equipment is switched on. - Page 32 INSTALLATION GUIDE FOR RD-7843 SITE ADDRESS The identification of each device site to the OMC. Valid ID must be a string of six unique alphanumeric characters. SMS REPORT ALARM Specifies the SMS Centre that the system will dial when alarms are to be sent as SMS.
- Page 33 INSTALLATION GUIDE FOR RD-7843 Input Overload Alarm] or [DL Output Power Low Alarm] will be generated. A measured value of power can be read directly when equipment signals are connected. When the measured value is beyond the detection range it will be shown as “--”, or “++”.
- Page 34 INSTALLATION GUIDE FOR RD-7843 Celsius. A measured alarm is generated. temperature is shown in the display. UL / DL To configure channel UL channel numbers: DL channel Frequency number, for UL / DL High edge and low numbers: High frequency within GSM1800...
- Page 35 INSTALLATION GUIDE FOR RD-7843 enabled or disabled by selecting “Enable” or “Disable” from the drop down menu in the “Enable Phone No Checking” field. Trigger Report Using OMT v3.20, user can send a [New Site Report] request to the [Report Number] specified in the window above, which usually is the SIM card number of the modem installed in the OMC Server computer.
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Page 36: Commissioning Procedure
INSTALLATION GUIDE FOR RD-7843 4.5.3.6 EXIT OMT To exit the OMT, click ‘Exit’ sub-menu under ‘System’ command of OMT screen, select ‘Yes’, the OMT software will shut down. 4.6 COMMISSIONING PROCEDURE Equipment commission can commence after the monitoring system has been initialized. The equipment commissioning includes GSM unit commissioning and WCDMA unit commissioning. -
Page 37: Operation
INSTALLATION GUIDE FOR RD-7843 Note 1: If during operation, the equipment gain could not be set to maximum or the output power is not high enough due to influence of donor antenna and mobile antenna isolation, the value of ‘I’ should be re-calculated. If the output power has been high enough and ALC is enables, then adjust gain for the downlink branch to achieve an optimal system Gain. -
Page 38: Maintenance
Table 14: Alarms diagnosis 6 MAINTENANCE The RD-7843 repeater offers trouble free operation and generally does not need maintenance. The equipment operation status can be observed remotely through OMC. Periodic inspection of the repeater equipment(s) is recommended, the recommended tasks includes: Inspect and record operation status and output power of the repeater from OMC or OMT. -
Page 39: Appendices
INSTALLATION GUIDE FOR RD-7843 7 APPENDICES 7.1 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: Wcdma2100 Channel Number And Frequency Table
INSTALLATION GUIDE FOR RD-7843 7.2 APPENDIX B: WCDMA2100 CHANNEL NUMBER AND FREQUENCY TABLE DL Downlink UL Uplink Channel Centre Freq. Centre Freq. Channel No. Channel No. (MHz) (MHz) 10563 2112.6 9613 1922.6 10588 2117.6 9638 1927.6 10613 2122.6 9663 1932.6 10638 2127.6... -
Page 41: Appendix C: Gsm1800 Channel Number And Frequency Table
INSTALLATION GUIDE FOR RD-7843 7.3 APPENDIX C: GSM1800 CHANNEL NUMBER AND FREQUENCY TABLE UL Freq. DL Freq. UL Freq. DL Freq. UL Freq. DL Freq. Channel Channel Channel (MHz) (MHz) (MHz) (MHz) (MHz) (MHz) 1710.2 1805.2 1718.6 1813.6 1727.0 1822.0 1710.4... - Page 42 INSTALLATION GUIDE FOR RD-7843 UL Freq. DL Freq. UL Freq. DL Freq. UL Freq. DL Freq. Channel Channel Channel (MHz) (MHz) (MHz) (MHz) (MHz) (MHz) 1735.4 1830.4 1743.8 1838.8 1752.2 1847.2 1735.6 1830.6 1744 1839 1752.4 1847.4 1735.8 1830.8 1744.2 1839.2...
- Page 43 INSTALLATION GUIDE FOR RD-7843 UL Freq. DL Freq. UL Freq. DL Freq. UL Freq. DL Freq. Channel Channel Channel (MHz) (MHz) (MHz) (MHz) (MHz) (MHz) 1760.6 1855.6 1768.8 1863.8 1777 1872 1760.8 1855.8 1769 1864 1777.2 1872.2 1761 1856 1769.2 1864.2...
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Page 44: Appendix D: Rma (Return Material Authorization) Form
INSTALLATION GUIDE FOR RD-7843 7.4 APPENDIX D: RMA (RETURN MATERIAL AUTHORIZATION) FORM End of Document RD-7843 QI Copyright - refer to title page Page 44 ENU Status : 1-0-0...
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