COMBA SR-2110 Technical Document

EQUIPMENT MANUAL FOR SR-2110
SR-2110 QE
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SR-2110 WCDMA
INDOOR BAND ADJUSTABLE
REPEATER
EQUIPMENT MANUAL
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This is an unpublished work the copyright in which vests in Comba International ("Comba"). 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.

EQUIPMENT MANUAL FOR SR-2110
SR-2110 QE
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0.2 CONTENTS
Section Page
0.2 CONTENTS...........................................................................................................................2
0.3 INDEX TO FIGURES AND TABLES .....................................................................................4
0.4 HISTORY...............................................................................................................................6
0.5 ISSUE CONTROL .................................................................................................................7
0.6 REFERENCES ......................................................................................................................8
0.7 GLOSSARY OF TERMS .......................................................................................................9
0.8 SAFETY NOTICES AND ADMONISHMENTS ....................................................................10
0.9 SERVICING POLICY AND RETURN OF EQUIPMENT......................................................11
0.10 READERS COMMENTS .....................................................................................................12
1 GENERAL INFORMATION .................................................................................................13
2 EQUIPMENT DESCRIPTION..............................................................................................15
2.1 SYSTEM DIAGRAM ............................................................................................................15
2.2 EQUIPMENT LAYOUT........................................................................................................16
2.3 GENERAL COMPONENTS.................................................................................................17
2.4 MANUFACTURING ENTITIES............................................................................................18
2.5 KIT OF PARTS ....................................................................................................................19
2.6 RF SPECIFICATIONS.........................................................................................................20
2.7 POWER, MECHNICAL AND ENVIRONMENTAL SPECIFICATIONS ................................21
2.8 OPERATION & MAINTENANCE.........................................................................................21
3 INSTALLATION ...................................................................................................................22
3.1 WARNINGS AND ALERTS .................................................................................................22
3.2 SITE PLANNING CONSIDERATIONS................................................................................23
3.2.1 REPEATER INSTALLATION CHECKLIST .........................................................................24
3.2.2 ANTENNA INSTALLATION CONSIDERATION..................................................................24
3.2.3 CABLE REQUIREMENTS...................................................................................................24
3.3 INSTALLATION PROCEDURES.........................................................................................25
3.3.1 GOODS INWARDS INSPECTION ......................................................................................25
3.3.2 TOOLS.................................................................................................................................25
3.3.3 PREPARATION...................................................................................................................25
3.3.4 MOUNTING ARRANGEMENT ............................................................................................25
3.3.5 WALL MOUNTING OPTION ...............................................................................................26
3.3.6 DRIP-LOOP.........................................................................................................................26
3.3.7 EQUIPMENT CONNECTIONS............................................................................................27
4 COMMISSIONING...............................................................................................................31
4.1 MCU LED INDICATORS .....................................................................................................31
4.2 EQUIPMENT POWER-UP ..................................................................................................31
4.3 OMT.....................................................................................................................................32
4.3.1 OMT SOFTWARE VERSION..............................................................................................32
4.3.2 OMT SOFTWARE INSTALLATION ....................................................................................33
4.3.3 CONFIGURATION MANAGEMENT....................................................................................33
4.3.4 CONNECTION WITH EQUIPMENT....................................................................................35
4.3.5 EQUIPMENT MANAGEMENT.............................................................................................39
4.3.6 FAULT MANAGEMENT.......................................................................................................48
4.3.7 DATA MAINTENANCE........................................................................................................49
4.4 COMMISSIONING PROCEDURES ....................................................................................51
4.5 REMOTE MONITORING USING OMC...............................................................................52
5 OPERATION........................................................................................................................53
6 MAINTENANCE...................................................................................................................54

EQUIPMENT MANUAL FOR SR-2110
SR-2110 QE
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7
APPENDICES......................................................................................................................55
7.1 APPENDIX A: TOOLS FOR INSTALLATION AND MAINTENANCE..................................55
7.2 APPENDIX B: OMT INSTALLATION AND UN-INSTALLATION.........................................56
7.3 APPENDIX C: RMA (RETURN MATERIAL AUTHORIZATION) FORM .............................61

EQUIPMENT MANUAL FOR SR-2110
SR-2110 QE
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0.3 INDEX TO FIGURES AND TABLES
Fig 1: Front, side and bottom Views of SR-2110 enclosure..................................................................14
Fig 2: SR-2110 System Diagram...........................................................................................................15
Fig 3: SR-2110 Internal View ................................................................................................................16
Fig 4: Integrated Module of SR-2110 System .......................................................................................17
Fig 5: Mounting rack dimension ............................................................................................................25
Fig 6: Wall mounting overview ..............................................................................................................26
Fig 7: Connecting to SR-2110...............................................................................................................27
Fig 8: Centralized Remote Controlling & Monitoring .............................................................................28
Fig 9: Pin out of EXT ALARM 1.............................................................................................................28
Fig 10: Local commissioning of SB-2100..............................................................................................29
Fig 11: Pin out of EXT ALARM (2, 3) ....................................................................................................29
Fig 12: OMT Software Version..............................................................................................................32
Fig 13: Database Configuration.............................................................................................................33
Fig 14: Database Link Test OK.............................................................................................................33
Fig 15: Database Configuration Save ...................................................................................................33
Fig 16: User Information Configuration .................................................................................................34
Fig 17: Operation Options-1..................................................................................................................34
Fig 18: Operation Options-2..................................................................................................................35
Fig 19: Wireless modem .......................................................................................................................35
Fig 20: Connection Type .......................................................................................................................36
Fig 21: Serial Port Configuration ...........................................................................................................36
Fig 22: Autolink to equipment................................................................................................................37
Fig 23: Remote Connection Dialog .......................................................................................................38
Fig 24: Toolbar after dialing successfully..............................................................................................38
Fig 25: Equipment Information Tree --- parameter expanded...............................................................39
Fig 26: System Information Window .....................................................................................................40
Fig 27: Switch Procedure ......................................................................................................................40
Fig 28: Auto-Read Configuration...........................................................................................................41
Fig 29: RF Parameter --- PA Switch......................................................................................................42
Fig 30: RF Parameter --- Pre-ATT ........................................................................................................42
Fig 31: RF Parameter --- Post-ATT.......................................................................................................42
Fig 32: RF Parameter --- Alarm Threshold ...........................................................................................43
Fig 33: RF Parameter --- Power............................................................................................................43
Fig 34: RF Parameter --- Gain ..............................................................................................................43
Fig 35: RF Parameter --- Temperature .................................................................................................43
Fig 36: RF Parameter --- Alarm Level...................................................................................................44
Fig 37: RF Parameter --- Alarm Control................................................................................................44
Fig 38: Alarm Parameter Information --- Master Alarm.........................................................................45
Fig 39: Alarm Parameter Information --- Channel Alarm ......................................................................45
Fig 40: Alarm Parameter Information --- External Alarm.......................................................................46
Fig 41: Property Parameters Information --- Equipment ID...................................................................46
Fig 42: Property Parameters Information --- Chip Info..........................................................................46
Fig 43: Property Parameters Information --- Equipment Info ................................................................47
Fig 44: Other Parameters Information --- Site Location ........................................................................47
Fig 45: Other Parameters Information - COMM Config ........................................................................47
Fig 46: Data Export Confirmation..........................................................................................................49
Fig 47: Import Finish Hint......................................................................................................................50
Fig 48: OMT software installation window.............................................................................................57
Fig 49: Installation of OMT explorer completed ....................................................................................57
Fig 50: OMT Installation Start................................................................................................................58
Fig 51: Database Select........................................................................................................................58
Fig 52: Welcome dialog box..................................................................................................................59
Fig 53: Setup Type Select.....................................................................................................................59
Fig 54: Review Dialog............................................................................................................................60
Fig 55: Installation Completed...............................................................................................................60

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SR-2110 QE
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Table 1: SR-2110 Manufacturing Entities .............................................................................................18
Table 2: SR-2110 KOP..........................................................................................................................19
Table 3: RF specifications.....................................................................................................................20
Table 4: Power, Mechanical and environmental specifications.............................................................21
Table 5: Management features of SR-2110..........................................................................................21
Table 6: Repeater Installation checklist ................................................................................................24
Table 7: Antenna installation checklist ..................................................................................................24
Table 8: Cable types used for SR-2110 connection..............................................................................24
Table 9: LED Indicators.........................................................................................................................31
Table 10: RF Information --- Column Information .................................................................................42
Table 11: Alarm Information --- Column Information.............................................................................45
Table 12: Fault Management – Alarm List ............................................................................................48
Table 13: Commissioning procedures for SR-2110 ..............................................................................51
Table 14: Contrast between UL Master ATT and UL Output Noise ALC..............................................51
Table 15: Alarms diagnosis...................................................................................................................53

EQUIPMENT MANUAL FOR SR-2110
SR-2110 QE
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0.4 HISTORY
Change No. ENU Details Of Change
1 1-0-0 Initial document developed on 23
rd
February, 2006

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SR-2110 QE
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0.5 ISSUE CONTROL
Date 11
Apr
06
Section
All all

EQUIPMENT MANUAL FOR SR-2110
SR-2110 QE
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0.6 REFERENCES
0.6.1 SR-2110-1001YH, V1.0
WCDMA Indoor Band Adjustable Repeater orginal manual, released in November, 2005
0.6.2 SR-2110-C1/C2 datasheet Issue A2 WCDMA Indoor Band Adjustable Repeater,
released 30-11-2005
Senior Product Specialist: Tommy Sun
0.6.3 OMT 3.10 Manual 1-0-0 OMT 3.10 Manual released in November, 2005

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SR-2110 QE
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0.7 GLOSSARY OF TERMS
Acronym Definition
ALC Automatic Level Control
ATT Attenuation
BS Base Station
BTS Base Transceiver Station
CDMA Code Division Multiple Access
dB Decibel
dBm Decibels relative to 1 milliwatt
DL Downlink
DPX Duplexer
DT Donor Terminal
EEPROM Electrically Erasable Programmable Read Only Memory
FS Frequency Selector
FSA Frequency Selector Amplifier
GSM Global System for Mobile Communication
Hz Hertz
ID Identification
LNA Low Noise Amplifier
MCU Main Control Unit
MHz Megahertz
MS Mobile Subscriber
MT Mobile Terminal
MTBF Mean Time Between Failures
NC Normally Closed
NF Noise Figure
NO Normally Open
OMC Operation & Maintenance Center
OMT Operation & Maintenance Terminal
PA Power Amplifier
PLL Phase Locked Loop
PSU Power Supply Unit
RF Radio Frequency
SMA Sub-Miniature A Connector (coaxial cable connector type)
UL Uplink
VAC Volts Alternating Current
VSWR Voltage Standing Wave Ratio

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SR-2110 QE
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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. At all times, personnel must comply with any safety notices and
instructions.
Specific hazards are indicated by symbol labels on or near the affected parts of the equipment. The
labels conform to international standards, are triangular in shape, and are colored black on a yellow
background. An informative text label may accompany the symbol label.
Hazard labeling is supplemented by safety notices in the appropriate equipment manual. These
notices contain additional information on the nature of the hazard and may also specify precautions.
Warning:
These draw the attention of personnel to hazards which may cause death or injury to the operator or
others. Examples of use are cases of high voltage, laser emission, toxic substances, point of high
temperature, etc.
Alert:
These draw the attention of personnel to hazards which may cause damage to the equipment. An
example of use is the case of static electricity hazard.
Caution notices may also be used in the handbook to draw attention to matters that do not constitute a
risk of causing damage to the equipment but where there is a possibility of seriously impairing its
performance, e.g. by mishandling or gross maladjustment. Warnings and Cautions within the main
text do not incorporate labels and may be in shortened form.

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SR-2110 QE
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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.
To enable an efficient, prompt after sales service to be provided for the diagnosis, repair and return of
any faulty equipment, please comply with the following requirements.
Items to be sent for repair should be packaged so as to provide both electrostatic and physical
protection and a Repair Material Authorization (a sample of this form is in the appendix) completed
giving the required information
This request must be included with the item for repair, items for repair should be sent to the nearest
Comba office:
COMBA TELECOM SYSTEMS, LTD.
Hong Kong Office
Address: Room 1503-10 Delta House, 3 On Yiu Street, Shatin, Hong Kong.
Tel: + 852 2636 6861
Fax: + 852 2637 0966
Email: [e-mail]
Singapore office
Address: 865 Mountbatten Road #05-43, Katong Shopping Centre, Singapore 449408
Tel: + 65 6345 4908
Fax: + 65 6345 1186
Email: [e-mail]
Sweden Office
Address: Comba Telecom Systems AB, Gustavslundsvagen 147, S- 167 51 Bromma,
Stockholm, Sweden
Tel: [phone]
Fax: [phone]
Email: [e-mail]
China R&D and Manufacturing Base
Address: No.6, Jinbi Road, Guangzhou Economic and Technological Development
District, Guangzhou, China.
Tel: + 86 20 8222 5788
Fax: + 86 20 8222 6121
Email: [e-mail]

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SR-2110 QE
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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–operation in filling out and returning a photocopy of this customer reply sheet as soon as possible.
Customer Information:
Name
Title
Company
Date
Address
Telephone Number
Customer Comments:
Equipment title
ENU 1-0-0
Page number
Paragraph number
Line number
Figure number
Details of inaccuracies
Other comments
Contact points:
International Documentation Centre
E-mail: [e-mail]
FAX: [phone]
End of section

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SR-2110 QE
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1 GENERAL INFORMATION
SR-2110 WCDMA Indoor Band Adjustable Repeater is designed for indoor or sheltered outdoor
operation in the WCDMA band. It is applicable for applications where small or medium area coverage
is required, such as residential apartments, offices, shopping malls, hotels and tunnels.
Its band-specific linear amplifier effectively amplifies the desired BTS carriers and IF filtering
effectively provides superior out-of-band rejection. Besides, this system provides with the function of
automatic temperature compensating for gain and working frequency.
Remote configuration and surveillance is possible through Comba’s remote control and monitoring
system, via PC or wireless modem to the OMT/OMC.
Characteristics of the SR-2110 repeater are as follows:
•Band adjustable with 5M, 10M, 15M. User-customized fixed bandwidth.
•Adjustable central frequency within 60M WCDMA frequency band.
•Filtering and amplification of both uplink and downlink signals with good system gain.
•Low noise amplifier improves uplink system noise figure for better voice quality and reduced
dropped call.
•Back-up Li-ion battery keeps the alarm unit running for up to two hours after power cut.
•The enclosure is designed for all weather installation - waterproof, damp-proof and omni-
sealed (IP65).
Two variants of the SR-2110 are available – please refer to the product label for the identifier code:
• SR-2110 Master Unit: comes with wireless modem and functions as a master unit
• SR-2110 Slave Unit : comes without wireless modem and functions as a slave unit

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The figure below presents the equipment view of SR-2110:
152
430
300
MON RUN ALM
MTDT
EXT-ALARM (2,3) EXT-ALARM1
AC220V
Fig 1: Front, side and bottom Views of SR-2110 enclosure
End of section

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SR-2110 QE
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2 EQUIPMENT DESCRIPTION
2.1 SYSTEM DIAGRAM
Fig 2: SR-2110 System Diagram
As shown in the above figure, the downlink BTS signals are received by donor antenna (connected
with DT port and located outdoor). After the duplexer the signals are sent to LNA for pre-amplification,
to the integrated module afterwards to get required output power. Then the signals are filtered by
duplexer and sent to service antenna (connected with MT port and located indoor) to cover the area.
In uplink, the signals from subscriber’s handset are sent to the device through service antenna. After
the duplexer the signals are sent to LNA and the integrated module. Then after the duplexer again, the
signals are sent to BTS through donor antenna.

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2.2 EQUIPMENT LAYOUT
The layout for SR-2110 is show below:
Integrated
Module
PSU
UL Integrated
Duplexer UL Integrated Duplexer
Modem
Li-ion
Batt
Modem
Integrated
Module
PSU
UL Integrated
Duplexer UL Integrated Duplexer
Modem
Li-ion
Batt
Modem
Fig 3: SR-2110 Internal View
Note: for SR-2110 slave unit, the wireless modem does not exist.

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2.3 GENERAL COMPONENTS
The SR-2110 system consists of the following:
Integrated Module: integrated with Main Control Unit and UL/DL FSA Module. This module is used to
select and amplify the required channel frequency and reject the undesired signals, as well as to
monitor and control the operation parameters of the repeater and provide telecommunication interface
for remote control.
Fig 4: Integrated Module of SR-2110 System
Integrated Duplexer (DPX): located towards the DT and MT connections, used to combine/divide the
UL and DL signals.
Power Supply Unit (PSU): converts the input 220VAC into stable DC to supply power to LNA, PA,
MCU and to charge the built-in Li-ion battery.
Wireless Modem: is used for remote system monitoring.
Li-ion Battery: will supply power to MCU for up to two hours in the event of mains failure.
Note: for SR-2110 slave unit, the wireless modem does not exist.

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2.4 MANUFACTURING ENTITIES
SR-2110 is equipped with the following standard modules identified as below:
Identification Code Description
RS-311050-3105 Integrated Module
RS-311UFD UL Duplexer Group
RS-311DFD DL Duplexer Group
3.6V/750mAh x4 Li-ion battery assembly
WMOD2 Wilreless Modem (master unit only)
PC-222410D0 (28V) Power Supply Unit
Table 1: SR-2110 Manufacturing Entities

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2.5 KIT OF PARTS
For each SR-2110, the following are shipped:
Product Identifier Description Quantity
SR-2110-5128 Mounting rack 1
M6x60 Masonry bolt for wall mounting 4
5.5mm Allen Key 1
n/a Enclosure Key for door-lock 2
X14J5-RJ9K Local Commissioning Cable 1
X14J5-RJ45 Communication Cable for cascaded connection 1
3.15A Replacement Fuse for PSU 2
V3.10 OMT on CD-ROM 1
SR-2110 QE 1-0-0 This manual 1
Table 2: SR-2110 KOP

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SR-2110 QE
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2.6 RF SPECIFICATIONS
Frequency Range, Uplink – [MHz] 1920 – 1980
Frequency Range, Downlink – [MHz] 2110 – 2170
Operation Bandwidth - [MHz] 15, 10, 5
Max. System Gain – [dB] 75 ±2
Gain Adjustable Range (1dB step) – [dB] 0–20±1.5
Max. Output Power (with single carrier ALC) – [dBm]
- Downlink (Option)
- Uplink (Option)
27 ±1
17 ±1
Pass Band Ripple, p-p – [dB] ≤5
System Noise Figure @ Maximum Gain – [UL] – [dB] ≤5
Group Delay – [µsec] ≤5
Spurious and Intermod – [dBm] 3GPP TS 25.106
V6.1.0 Standards
Max. RF Input Power – [dBm] 10
Input VSWR ≤1.5
Impedance – [Ω] 50
Table 3: RF specifications
Note: Measurement taken at room temperature