COMBA TB-2100 User manual

INSTALLATION GUIDE FOR TB-2100 (40W)
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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
INSTALLATION GUIDE
TB-2100 (40W) WCDMA
TOWER MOUNTED BOOSTER
This is an unpublished work the copyright in which vests in Comba International ("Comba").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.

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0.2 CONTENTS
Section Page
0.2 CONTENTS ...........................................................................................................................2
0.3 INDEX TO FIGURES AND TABLES......................................................................................4
0.4 HISTORY ...............................................................................................................................5
0.5 ISSUE CONTROL..................................................................................................................6
0.6 REFERENCES.......................................................................................................................7
0.7 GLOSSARY OF TERMS........................................................................................................8
0.8 SAFETY NOTICES AND ADMONISHMENTS ......................................................................9
0.9 SERVICING POLICY AND RETURN OF EQUIPMENT......................................................10
0.10 READERS COMMENTS......................................................................................................11
1GENERAL INFORMATION..................................................................................................12
2EQUIPMENT DESCRIPTION ..............................................................................................13
2.1 TB-2100 FUNCTIONAL BLOCK DIAGRAM ........................................................................13
2.2 EQUIPMENT LAYOUT ........................................................................................................14
2.3 EQUIPMENT CONSTITUTION............................................................................................15
2.4 KIT OF PARTS.....................................................................................................................16
3INSTALLATION....................................................................................................................17
3.1 WARNINGS AND ALERTS..................................................................................................17
3.2 SITE PLANNING CONSIDERATIONS ................................................................................18
3.2.1 INSTALLATION CHECKLIST ..............................................................................................19
3.2.2 CABLE REQUIREMENTS ...................................................................................................19
3.3 INSTALLATION PROCEDURES.........................................................................................20
3.3.1 GOODS INWARDS INSPECTION.......................................................................................20
3.3.2 TOOLS .................................................................................................................................20
3.3.3 MOUNTING RACK DIAGRAM.............................................................................................20
3.3.4 WALL MOUNTING...............................................................................................................21
3.3.5 POLE MOUNTING...............................................................................................................21
3.3.6 DRIP-LOOP .........................................................................................................................22
3.3.7 EQUIPMENT CONNECTORS .............................................................................................22
3.4 EQUIPMENT CONNECTIONS ............................................................................................23
3.4.1 GROUNDING CONNECTION .............................................................................................23
3.4.2 SERVICE VOLTAGE CONNECTION..................................................................................23
3.4.3 LI-ION BATTERY CONNECTION........................................................................................24
3.4.4 RF CABLE CONNECTION ..................................................................................................24
3.4.5 ALARM PORT TO BTS........................................................................................................24
3.4.6 EXT_ALM CONNECTION ...................................................................................................25
3.4.7 WIRELESS MODEM ANTENNA CONNECTION ................................................................26
3.4.8 PHYSICAL CONNECTION TO OMT PC.............................................................................26
4COMMISSIONING ...............................................................................................................27
4.1 PREPARATION ...................................................................................................................27
4.2 MCU LED INDICATORS......................................................................................................27
4.3 PREPARATION FOR REMOTE CONTROL OF EUIPMENT USING MODEM ..................28
4.4 CONNECTION TO OMT......................................................................................................29
4.5 OMT OVERVIEW.................................................................................................................29
4.5.1 OMT SOFTWARE INSTALLATION.....................................................................................29
4.5.2 OMT SOFTWARE VERSION ..............................................................................................30
4.6 DESCRIPTION OF PARAMETERS.....................................................................................30
4.6.1 COMMON INFORMATION ..................................................................................................30
4.6.2 RF INFORMATION ..............................................................................................................31
4.6.3 ALARM INFORMATION ......................................................................................................34
4.6.4 PROPERTIES INFORMATION............................................................................................35

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4.7 FAULT MANAGEMENT.......................................................................................................36
4.7.1 ALARM ACKNOWLEDGEMENT.........................................................................................36
4.8 NON-VOLATILE MEMORY .................................................................................................37
4.9 COMMISSIONING PROCEDURES.....................................................................................38
4.9.1 PRE-COMMISSIONING TASKS..........................................................................................38
4.9.2 COMMISSIONING TASKS ..................................................................................................39
5MAINTENANCE...................................................................................................................40
5.1 O-RING FITTING DETAILS .................................................................................................40
6APPENDICES......................................................................................................................41
6.1 APPENDIX A: TOOLS AND EQUIPMENT ..........................................................................41
6.2 APPENDIX B: RMA (RETURN MATERIAL AUTHORIZATION) FORM..............................42

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0.3 INDEX TO FIGURES AND TABLES
Figure 1: Front, side and bottom views of the TB-2100 enclosure .............................................................. 12
Figure 2: Functional block diagram .............................................................................................................. 13
Figure 3: Layout of the TB-2100................................................................................................................... 14
Figure 4: Mounting rack dimension .............................................................................................................. 20
Figure 5: Wall mounting overview ................................................................................................................ 21
Figure 6: Pole mounting overview ................................................................................................................ 21
Figure 7: Equipment connectors .................................................................................................................. 22
Figure 8: Voltage-free relay pins .................................................................................................................. 24
Figure 9: Pins allocation for the BTS ALM round connector ........................................................................ 25
Figure 10: Pins allocation for 7-pin EXT_ALM connector for external alarms ............................................. 25
Figure 11: Location of MCU and LEDs......................................................................................................... 27
Figure 12: Wireless modem.......................................................................................................................... 28
Figure 13: OMT v3.20 desktop..................................................................................................................... 29
Figure 14: System information window ........................................................................................................ 30
Figure 15: RF information – Switch window ................................................................................................. 32
Figure 16: O-Ring fitting details.................................................................................................................... 40
Table 1: TB-2100 Kit of Parts ....................................................................................................................... 16
Table 2: Cable types used for the TB-2100.................................................................................................. 19
Table 3: The TB-2100 connectors................................................................................................................ 22
Table 4: Pin definition of the BTS ALM port ................................................................................................. 25
Table 5: External alarm signal definition ...................................................................................................... 25
Table 6: Voltage applied to EXT_ALM pin ................................................................................................... 25
Table 7: LEDs on MCU................................................................................................................................. 27
Table 8: Common information description.................................................................................................... 30
Table 9: TB-2100 RF parameters description .............................................................................................. 31
Table 10: Management – RF parameters .................................................................................................... 33
Table 11: Alarm list....................................................................................................................................... 34
Table 12: Properties information descriptions.............................................................................................. 35
Table 13: Alarm diagnosis ............................................................................................................................ 36
Table 14: Commissioning procedures.......................................................................................................... 39

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0.4 HISTORY
Change No. ENU Details Of Change
1 1-0-0 Initial document developed and issued in Nov 2006.
2 1-1-0 KOP section deleted, with general document update to simplify it, especially
section 4.
3 1-1-1 Address of HK office has been updated.
4 1-2-0 Document developed for TB-2100 (40W).

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0.5 ISSUE CONTROL
Date 30
Nov
06
11
Apr
07
05
Apr
08
Section
All All All All

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0.6 REFERENCES
0.6.1 TB-2100B-1001YH Original user manual developed and released in Dec 2007.
0.6.2 OMT v3.20 QE 1-1-0 OMT manual updated and issued in Feb 2007.

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0.7 GLOSSARY OF TERMS
Abbreviation Definition
ALC Automatic Level Control
ATT Attenuator
BTS Base Transceiver Station
CSA Cross Sectional Area
dB Decibel
dBm Decibels relative to 1 milliwatt
DL Downlink
DT Donor Terminal
DPX Duplexer
FS Frequency Selection
Hz Hertz
ID Identification
LNA Low Noise Amplifier
MCU Main Control Unit
MHz Megahertz
MT Mobile Terminal
MTBF Mean Time Between Failures
NF Noise Figure
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
SMS Short Message Service
TX/RX Transmit/Receive
UL Uplink
VAC Volts Alternating Current
VDC Volts Direct Current
VSWR Voltage Standing Wave Ratio
WCDMA Wideband-Code Division Multiple Access

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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 coloured black on a yellow background.
An informative text label may accompany the symbol label.
Hazard labelling 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 Notices:
These draw the attention of personnel to hazards that 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 Notices:
These draw the attention of personnel to hazards that 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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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 and 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 (RMA) should be completed giving the required information. A sample
RMA form is provided in Appendix B.
This request must be included with the item for repair. Items for repair should be sent to the nearest Comba
office:
COMBA TELECOM LTD.
Hong Kong Office
Address: 611 East Wing, No. 8 Science Park West Avenue, Hong Kong Science Park,
Tai Po, Hong Kong.
Tel: [phone]
Fax: [phone]
Email: [email protected]
Singapore Office
Address: 865 Mountbatten Road, Katong SC #05-43, Singapore 437844
Tel: + 65 6345 4908
Fax: + 65 6345 1186
Email: [email protected]
Thailand Office
Address: 3rd Floor, T. Shinawatra Building, 94 Sukhumvit Soi 23, Sukhumvit Road, Klongtoeynua, Wattana,
Bangkok 10110
Tel: [phone]
Fax: [phone]
India Office
Address: Suite No. 2, E-172, TSH House, Greater Kailash – I, New Delhi – 110 048, India
Tel: + 91 11 5173 9997 / 8
Fax: + 91 11 5173 9996
Email: [email protected]
Sweden Office
Address: Gustavslundsvagen 147, S- 167 51 Bromma, Stockholm, Sweden
Tel: [phone]
Fax: [phone]
Email: [email protected]
Brazil Sales Office
Avenida Engenheiro Luiz Carlos Berrini 1297, cj 122, sala 03 04571-090 São Paulo, Brazil
Tel: [phone]
Fax: [phone] ext 7
China Office
Address: No.10, Shenzhou Road, Guangzhou Science City, Guangzhou, China
Tel: + 86 20 2839 0000
Fax: + 86 20 2839 0136
Email: [email protected]

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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 may occur.
In order that any amendment or 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.
Customer Information:
Name
Title
Company
Date
Address
Telephone Number
Customer Comments:
Equipment title
ENU 1-2-0
Page number
Paragraph number
Line number
Figure number
Details of inaccuracies
Other comments
Contact points:
Technical Writing
E-mail: [e-mail]
FAX: [phone]
End of section

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1 GENERAL INFORMATION
The TB-2100 WCDMA Tower Mounted Booster (TMB) provides both uplink and downlink amplification for
up to four carriers. The unit is installed near the antenna at the tower top to boost the transmitted power for
extended cell coverage. The uplink low-noise amplifier (LNA) serves to improve the sensitivity of the BTS.
The TB-2100 equipment consists of integrated duplexer (DPX), LNA, pre-amplifier, downlink power
amplifier (PA), distribution board, main Control Unit (MCU), power supply unit (PSU), surge protector,
wireless modem and Li-ion backup battery. It can be powered by 220VAC or -48VDC and the parameter
settings can be done locally via PC with installed OMT software, or remotely via wireless modem using
OMT or OMC software. Alarms are displayed on the OMT screen and can also be detected by BTS as
external alarm. Through the wireless modem, the alarm data can be transmitted to the OMC automatically,
or be sent as SMS to a predefined cellular device.
Main Features
The TB-2100 is a high quality TMB with the following features:
zProvide customer an option of one main channel and one uplink diversity channel to match to the BST
with connector type of TX1/RX1+RX.
zHigh downlink power of 46dBm.
zMCPA with 60MHz working bandwidth can support up to four continuous WCDMA downlink carriers.
zLow noise amplifier reduces uplink system noise figure and results in reduced dropped call and
improved voice quality.
zReduces cell phone output power and improves BTS uplink receiver sensitivity.
zAlarms can be sent to BTS via BTS alarm relay contacts (Marked as “BTS ALM” on the front side of
enclosure)
zAutomatic bypass uplink permits BTS operation when booster or power supply fails.
zPermits local monitoring via PC and remotely via wireless GSM modem.
zAlarms can be transmitted to the OMC via call or SMS.
zInternal Li-ion backup battery ensures alarm messages are transmitted during power failure.
zConvection cooling and IP65 rated enclosure is suitable for tower top installation.
zDesigned for all outdoor installation – waterproof, damp-proof and omni-sealed.
The figure below shows the enclosure of the TB-2100.
734
297
397 336
Figure 1: Front, side and bottom views of the TB-2100 enclosure
End of section

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2 EQUIPMENT DESCRIPTION
2.1 TB-2100 FUNCTIONAL BLOCK DIAGRAM
Figure 2: Functional block diagram
The TB-2100 consists of a single MCPA in the downlink and two LNAs (one is in the main uplink and the
other is in diversity uplink). In the downlink, the BTS signals enter the system at the TX1/RX1 terminal to the
duplexer 2. The downlink signals are amplified by the Pre-amplifier and the MCPA, before being combined
with the uplink signals to share a common antenna port (ANT). In the uplink, the signals are extracted by the
duplexer 1 and sent to an LNA for amplification. This is followed combining in the duplexer 2 before being
sent to the BTS.
A second antenna port (ANT1) permits the reception of a diversity uplink signal (DIV). The two antenna
ports may be connected to two vertical polarized antennas, or to a single cross polarized antenna.
Attenuators (ATT) are provided in the uplink and downlink for gain adjustment.
In the event of a fault in the MCPA or LNA, the appropriate bypass switch will be activated. This allows the
BTS and mobile signals to be transmitted and received, while activating the appropriate alarms. The bypass
switches are also activated in the event of a power failure.

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2.2 EQUIPMENT LAYOUT
The following figure shows the internal layout of the TB-2100:
MCPA
Li-ion Battery
Wireless Modem
MCU Distribution
Board
Shield
PSU
Pre-amplifier Surge
Protector
Integrated Duplexer
Figure 3: Layout of the TB-2100

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2.3 EQUIPMENT CONSTITUTION
The TB-2100 units consist of the following components:
Integrated Duplexer (DPX): The integrated DPX is used to combine or separate the uplink and downlink
signals. Two LNAs (one for main branch, the other for diversity branch) and two RF by-pass switches are
integrated with the DPX. The RF by-pass switch is activated when there is a fault with any of the functional
modules and/or when over temperature occurs. There is a coupling port of 70 dB power used to couple the
downlink signals in two carriers, which is connected to RF connector of wireless modem directly after the
two carrier signals are combined to realize remote communicate between MODEM and OMC.
Low Noise Amplifier (LNA): It is used to provide amplification of the received signal from the mobile. Gain
adjustment is accomplished via the Post-ATT.
Pre-amplifier: With ALC and ATT functions, it provides pre-amplification of the downlink signals from the
BTS. The Pre- and Post-ATT controls the overall gain in the downlink path.
Multi-Carrier Power Amplifier (MCPA): It fulfils power amplification of multi-carrier signals into single
antenna in downlink branch, and incorporates ALC control circuitries.
Li-ion Battery: The Li-ion battery pack is enclosed within a plastic cover and provides back-up supply to
the MCU to send out alarm signals in the event of mains failure.
Main Control Unit (MCU): The MCU is used to monitor and control the operation of the equipment. It also
provides the communication interface for remote control and indication. LED indicators on the board provide
the operation status of the MCU.
Power Supply Unit (PSU): The PSU converts the input voltage into a stable DC to provide power for the
internal functional modules and to charge the internal Li-ion battery.
Distribution Board: The distribution board serves as a distributor for power and internal communication
within the equipment. It provides connectivity to function modules, MCU and RS232 port for local control.
Surge Protector: The AC Mains surge protector is mounted next to the PSU and has three connections –
VAC Live, Neutral and Ground. This provides protection to the PSU. It is assumed that the antenna system
will have ample lightning protection. On the top of each surge protector is a little window with a coloured
indicator. ‘Green’ indicates protection is available, and in the event of a fault, the colour changes to ‘Black’.
When this occurs, the surge protector has to be replaced.
Wireless Modem: The wireless modem is mounted adjacent to the MCU. It has connections for RF, data
and power. On the wireless modem, there is an indicator LED to show the modem status. The wireless
modem is used for remote control and monitoring, and for alarm transmission from the equipment back to
the OMC.

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2.4 KIT OF PARTS
Product Identifier Description Quantity
R-9122C8-5140/1 Mounting Rack 1
M10x 110 Masonry Bolt 8
M10x 85x 110 U Bolt 2
XM14J7P-DB9 Commissioning cable for local commissioning 1
5.5mm Allen Key 1
n/a Enclosure Key for door-lock 2
TB-2100 (40W) QI 1-2-0 This manual
OMT V3.20 OMT Software on CD-Rom 1(CD)
30A Equipment replacement fuse 2
Table 1: TB-2100 Kit of Parts
End of section

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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.
High Voltage
The equipment has been designed and constructed to prevent, as far as reasonably, practicable danger.
Any work activity on or near equipment involving installation, operation or maintenance must be, as far as
reasonably, free from danger.
Where there is a risk of damage to electrical systems involving adverse weather, extreme temperatures,
wet, corrosive or dirty conditions, flammable or explosive atmospheres, the system must be suitably
installed to prevent danger.
Protective Earthing
Equipment provided for the purpose of protecting individuals from electrical risk must be suitable for the
purpose and properly maintained and used.
Handling Precautions
This covers a range of activities including lifting, lowering, pushing, pulling, carrying, moving, holding or
restraining an object, animal or person from the equipment. It also covers activities that require the use of
force or effort, such as pulling a lever, or operating power tools.
Where some of the abovementioned activities are required, the equipment must be handled with care to
avoid being damaged.
Electrostatic Discharge (ESD)
Observe standard precautions for handling ESD-sensitive devices. Assume that all solid-state electronic
devices are ESD-sensitive. Ensure the use of a grounded wrist strap or equivalent while working with
ESD-sensitive devices. Transport, store, and handle ESD-sensitive devices in static-safe environments.

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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. gale, storm rainfall, extreme temperatures and high humidity)
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.
Environmental
Humidity has 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 installation location for the product should be well ventilated. The equipment has been designed to
operate at the temperature range and humidity level as stated in the product specifications in the datasheet.
Direct sun light exposure to the equipment should be avoided. Provide additional shelter if necessary.
Powering
The power supply unit (PSU) provides power to all modules within the equipment. Depending on the
product variant, it is recommended that the PSU operates on a dedicated circuit breaker or fused circuit.
Grounding Requirement
Verify that the equipment has been well grounded. This includes antennas and all cables connected to the
system. Ensure lightning protection for the antennas is properly grounded.
Cable Routing
Depending on equipment configuration, a variety of types of cables are required. Where applicable, ensure
cables are properly routed and secured so that they are not damaged.
Manual Handling
During transportation and installation, take necessary handling precautions to avoid potential physical injury
to the installation personnel and the equipment.

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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.
•Where appropriate, ensure unused RF connectors are terminated.
•Do not locate the equipment near large transformers or motors that may cause electromagnetic
interference.
•Reduce signal loss in feeder cable by minimizing the length and numbers of RF connections.
•Ensure VSWR of antennas system < 1.5:1.
•Ensure equipment will be operated within the stated environment (see datasheet).
•Where needed, couple BTS RF signal with a coupler to prevent damaging the equipment.
•Observe handling of all cables to prevent damage.
3.2.2 CABLE REQUIREMENTS
The following table shows the minimum cables required for installing and commissioning of the equipment.
Cable Name Interface Purpose Label
Coaxial cable 7/16 DIN-J to 7/16
DIN-J
Connect BTS cable to TX1/RX1,
TX2/RX2connectors.
Coaxial cable 7/16 DIN-J to 7/16
DIN-J
Connect BTS ANT to ANT1, ANT2
connectors.
Local
Commissioning
Cable
7-pin CPC Connector
to DB-9 Connector
For local OMT connection with
the enclosure door closed. XM14J7P-DB9
Table 2: Cable types used for the TB-2100

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3.3 INSTALLATION PROCEDURES
3.3.1 GOODS INWARDS INSPECTION
zVerify the number of packages received against the packing list.
zCheck all packages for external damage; report any external damage to the shipping courier. If there
is damage, a shipping agent should be present before unpacking and inspecting the contents because
damage caused during transit is the responsibility of the agent.
zOpen and check each package against the packing list. If any items are missing, please contact
Comba.
zDo not remove items from antistatic packing until ready for installation. If damage is discovered at the
time of installation, contact the shipping agent.
3.3.2 TOOLS
Refer to Appendix A for a full list of the recommended tools required for installation.
3.3.3 MOUNTING RACK DIAGRAM
The mounting rack is for mounting the equipment to either a wall or on a pole. There are eight holes in total
catering for the two mounting options:
•Wall mounting with the masonry bolts supplied, which make use of the round holes.
•Pole mounting with the clamp kit supplied, which make use of the square holes.
The following figure shows the dimension of the mounting rack.
85
200
8- 14
273
Figure 4: Mounting rack dimension
The mounting rack is pre-installed to the enclosure prior to shipment. Before commencing with wall or pole
mounting, user needs to unscrew each set of bolts on the equipment with a ring spanner. The mounting
rack can then be separated from the equipment in preparation for subsequent mounting tasks.