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INSTALLATION GUIDE FOR TB-2100 (40W)
TB-2100 (40W) QI
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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This is an unpublished work the copyright in which vests in Comba International ("Comba").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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INSTALLATION GUIDE FOR TB-2100 (40W)
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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
1 GENERAL INFORMATION..................................................................................................12
2 EQUIPMENT 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
3 INSTALLATION....................................................................................................................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
4 COMMISSIONING ...............................................................................................................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
5 MAINTENANCE...................................................................................................................40
5.1 O-RING FITTING DETAILS .................................................................................................40
6 APPENDICES......................................................................................................................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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INSTALLATION GUIDE FOR TB-2100 (40W)
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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: +852 2636 6861
Fax: +852 2637 0966
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: 3
rd
Floor, T. Shinawatra Building, 94 Sukhumvit Soi 23, Sukhumvit Road, Klongtoeynua, Wattana,
Bangkok 10110
Tel: +66 2664 3440
Fax: +66 2664 3442
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: +46 8 25 38 70
Fax: +46 8 25 38 71
Email: [email protected]
Brazil Sales Office
Avenida Engenheiro Luiz Carlos Berrini 1297, cj 122, sala 03 04571-090 São Paulo, Brazil
Tel: +55 11 55050549
Fax: +55 11 55050549 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: [email protected]
FAX: +852 21166055
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:
z Provide customer an option of one main channel and one uplink diversity channel to match to the BST
with connector type of TX1/RX1+RX.
z High downlink power of 46dBm.
z MCPA with 60MHz working bandwidth can support up to four continuous WCDMA downlink carriers.
z Low noise amplifier reduces uplink system noise figure and results in reduced dropped call and
improved voice quality.
z Reduces cell phone output power and improves BTS uplink receiver sensitivity.
z Alarms can be sent to BTS via BTS alarm relay contacts (Marked as “BTS ALM” on the front side of
enclosure)
z Automatic bypass uplink permits BTS operation when booster or power supply fails.
z Permits local monitoring via PC and remotely via wireless GSM modem.
z Alarms can be transmitted to the OMC via call or SMS.
z Internal Li-ion backup battery ensures alarm messages are transmitted during power failure.
z Convection cooling and IP65 rated enclosure is suitable for tower top installation.
z Designed 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 TX
1
/RX1,
TX
2
/RX2 connectors.
Coaxial cable
7/16 DIN-J to 7/16
DIN-J
Connect BTS ANT to ANT
1
, 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
z Verify the number of packages received against the packing list.
z Check 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.
z Open and check each package against the packing list. If any items are missing, please contact
Comba.
z Do 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.
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3.3.4 WALL MOUNTING
z Drill holes on the wall by using the position of the four round holes on the mounting rack as a guide.
z Insert the masonry bolts M10 x 110 through the round holes and tighten them to take the weight of the
entire equipment.
z Hang the equipment to lie on the mounting rack.
z Tighten all bolts to secure the equipment onto the mounting rack.
Figure 5: Wall mounting overview
3.3.5 POLE MOUNTING
• The equipment can be mounted on customer-located poles of about 60~75mm in diameter.
• Secure the mounting rack onto the pole by making use of the U bolts.
• Hang the equipment to lie on the mounting rack.
• Tighten all bolts to secure the equipment onto the mounting rack.
Figure 6: Pole mounting overview
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3.3.6 DRIP-LOOP
It is recommended that every horizontal cable entry to the equipment forms a 'U' before its entry to the
equipment. Any accumulated water on the cable will drip down at the bottom of the loop and will not enter
the equipment.
3.3.7 EQUIPMENT CONNECTORS
The TB-2100 is designed for all cables entries from the bottom of the enclosure, as shown in the following
figure.
Modem
DIV IN
TX/RX
ANT 1
ANT
EXT_ALM
BTS ALM
RS-232
Power
Figure 7: Equipment connectors
Identifier Descriptions
DIV IN Connector for connection to the diversity port of the BTS.
ANT1 Connector for connection to the diversity RX antenna.
TX/RX Connector for connection to the TX/RX port of the BTS.
ANT Connector for connection to the TX/RX antenna.
RS-232 Communication port for local commissioning with the supplied commissioning cable.
BTS ALM 7-pin CPC connector for connection to the BTS for monitoring the TB-2100 alarm
status.
EXT_ALM 7-Pin round connector for external alarm connection.
Modem SMA connector for connecting to a small modem antenna for remote connection.
Power This is a power cable gland for a pre-installed power cord for connection to AC or DC
supply (e.g. 220V, -48V).
Table 3: The TB-2100 connectors
*Note: Depending on the type of PSU installed, the power cable gland is identified as “AC 220V”, “DC -48V”,
or “DC +24V”.
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3.4 EQUIPMENT CONNECTIONS
3.4.1 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. For operating this product with DC power system (such as rectifiers), the product
should not be connected to power systems that switch open the return lead because the return lead could
function as the ground (earth) connection for the equipment.
Protective Ground Connection
The enclosure must be grounded securely by connecting a copper wire (CSA 16mm
2
) to the grounding
terminal on the equipment/rack, and the other end to a protective ground (i.e. building earth point). An
internationally acceptable colour code of the ground connection wire is green/yellow.
Such a ground connection implements the “Protective Ground Connection”, and must be connected to the
equipment at the designated ground point. In general, do not connect the supply before establishing an
adequate ground (earth) connection.
Construct the ground wire, and use appropriate crimp connectors where necessary. Locate and connect the
equipment grounding terminal to a protective ground (i.e. building earth point).
3.4.2 SERVICE VOLTAGE CONNECTION
The product accepts AC or DC power depending on the type of PSU installed.
• For AC PSU – The equipment accepts single phase 220VAC power. The recommended AC connection
is rated at AC220V, 10A and has three connections to include earth. The power cord has been
pre-wired to the PSU and led out via the power cable gland.
• For DC PSU – When the equipment is required to be DC powered, DC power connection from telecom
rectifier is via a wire with CSA of 2.1mm
2
. DC voltage supply is hard-wired to the rectifier equipment.
For planning purposes, allow DC current up to 20A and 10A to be drawn when powered with +24V and
-48V, respectively. The wiring to telecom rectifiers is outside the scope of this document. Please consult
and observe the installation guidelines for telecom rectifiers.
y The DC power cable for -48V is colour coded, typically as BLUE for “-48V” or “Battery” and
BLACK for “0V” or “Return” connections.
y The DC power cable for +24V is colour coded, typically as RED for “+24V” or “Battery” and BLUE
for “0V” or “Return” connections.
y The power cord has been pre-wired to the PSU and led out via the power cable gland.
Depending on site requirement for DC power distribution, the existing equipment power cord can be
replaced by customer cabling according to wiring standard for telecom voltages. The following use
replacement of the -48VDC PSU as an example for illustration.
• Observe and note the colour code of the equipment wiring at the surge protector – typically Blue for
-48V DC and Black for 0V (Return). Observe and note the route of the DC power cord and any cable
anchor in place.
• Take the existing DC power cable as a guide, tie and pull a section of the replacement DC power cable
through the cable gland.
• Remove existing power cord and re-make electrical connections (-48V and Return) at the surge
protector.
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• Complete replacement by tightening cable anchor and cable gland.
Alternatively, on the PSU is a Combicon connector (plug), where the -48V may be extracted. Consult the
PSU pinout to identify the -48V and 0V pin and wire the DC power cable to the -48V and Return pins. Two
pairs of extra connectors are available for DC -48V input, and these can be left unconnected.
3.4.3 LI-ION BATTERY CONNECTION
Li-ion battery is provided with the product to ensure that power is supplied to the system monitoring unit and
MCU, and that the alarm message can be sent out to the OMC effectively in case of mains power failure.
With the equipment lying flat, remove the bolts with an Allen Key, unlock and open the enclosure door.
Locate the battery pack. The in-line connector of the battery pack is “disconnected” from the PSU during
shipment. During installation, re-connect the in-line connector to activate the back-up supply to the MCU
board. Close the enclosure door, insert and tighten bolts to complete this procedure.
Caution: There is a risk of explosion if the battery is replaced by an incorrect type. Dispose of used
batteries according to the instructions.
3.4.4 RF CABLE CONNECTION
Connecting the equipment to the BTS:
z TX/RX port → Connected to the feeder cable from the BTS TX/RX port.
z RX DIV port → Connected to the feeder cable from the BTS RX DIV port (diversity branch)
Connecting the equipment to antennas:
z ANT port → Connected to the feeder cable from the TX/RX antenna
z ANT1 port → Connected to the feeder cable from diversity RX antenna
3.4.5 ALARM PORT TO BTS
The equipment alarms can be connected to the BTS as external alarm via voltage-free relay contacts. The
following figure shows the definitions of the pins of the relay.
Figure 8: Voltage-free relay pins
The voltage-free relay is a three-pin connector. Pin2 and Pin3 are designed as normally closed. The relay
connections are pre-connected to the 7-pin round connector located on the bottom of the enclosure. It is
marked as BTS ALM.
Note: The picture in Figure 8 shows the connection when there is NO ALARM. When an alarm occurs, the
relay will switch over, so Pin3 is now connected to Pin1.
The following figure shows the pin allocation. The table provides pin definition and description of the
BTS_ALM 7-pin connector. Pin numbering is shown looking into the connector on the enclosure.
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7
6
3
5
4
12
Figure 9: Pins allocation for the BTS ALM round connector
Pin Number Definition Description
1 BTSCLOSE Connects to the normally closed terminal of the relay.
2 BTS_COM Connects to the common terminal of the relay.
3 BTSOPEN Connects to the normally opened terminal of the relay.
4 ~ 7 NC Reserved.
Table 4: Pin definition of the BTS ALM port
On the BTS_ALM connector, alarm signals from the equipment are sent to the BTS when: a) Pin2 and Pin3
‘opened’, or b) Pin1 and Pin3 ‘closed’.
3.4.6 EXT_ALM CONNECTION
Four alarm inputs to the TB-2100 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.
76
35
4
12
Figure 10: Pins allocation for 7-pin EXT_ALM connector for external alarms
Pin No 1 2 3 4 5 6 7
Alarm
definition
EXT.
Alarm 1
EXT.
Alarm 2
EXT.
Alarm 3
GND
EXT.
Alarm 4
Reserved Reserved
Table 5: External alarm signal definition
These signals are defined as “TTL/CMOS level”. For the TB-2100, the following voltages are valid
EXT_ALM signals:
Voltage as applied to EXT Alarm pin Alarm condition as seen by TB-2100
0V to 1.5V Alarm recognized
3.5V to 5V No Alarm recognized
Table 6: Voltage applied to EXT_ALM pin
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3.4.7 WIRELESS MODEM ANTENNA CONNECTION
If remote monitoring is to be used, ensure that the wireless modem antenna is connected to the M-ANT
connector, which is an SMA connector.
3.4.8 PHYSICAL CONNECTION TO OMT PC
Two options are provided for local commissioning with the OMT using RS-232. Only one can be used at any
time.
a) Without opening the enclosure, the XM14J7-DB9 local commissioning cable is required to connect
the equipment to the PC. It has two connectors: one is a round connector for connecting to the
“RS-232” port of the equipment, and a DB-9 connector for connecting to the serial port of the PC.
b) With the enclosure opened, customer can also connect the equipment to the PC directly via the
RS-232 port (X6) on the distribution board inside the enclosure.
Note: To avoid damage to internal circuitries, temporarily break the Li-ion battery connection before making
the RS-232 connection.
End of section
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4 COMMISSIONING
4.1 PREPARATION
After equipment installation, perform the following steps before equipment powering 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.
• Visually inspect the power connection within the equipment. Ensure that the power cable is correctly
and securely connected, including grounding wire and RF cable.
• Check grounding connection and verify that the ground resistance is less than 5Ω.
• Connect the equipment to the PC installed with OMT software.
• With the equipment installed and cables connected, apply power to it by switching on the PSU switch.
• Monitor the initialization of the equipment through the indicator LEDs on the MCU. Refer to detailed
LEDs information in the next section.
4.2 MCU LED INDICATORS
Three diagnostic LEDs are located on the MCU board, each indicating the status of a particular function:
Identifier Colour Indication
H1 Green MCU operation. Flashing at a rate of 1 flash/sec. Any other flashing rate
indicates MCU is faulty, and has to be replaced.
H2 Red Warning LED. When ON, it indicates alarm condition.
H3 Red Wireless modem status. During normal operation, it is OFF. When ON, it
indicates faulty wireless modem and no communication will take place.
Table 7: LEDs on MCU
MCU Initialization
All three diagnostic LEDs will flash simultaneously for three times when power is supplied to the equipment.
Then H1 will keep flashing at the rate of 1 flash/second. H2 will be ON when any alarm occurs. H3 will be
OFF two minutes after successful initialization of modem; otherwise, it will remain ON.
H3H2H1
MCU
Connector to distribution board
Push-button
switch
Figure 11: Location of MCU and LEDs
On the MCU, there is a push-button switch (usually yellow) used to reset the equipment manually when
equipment initialization fails, or abnormal operation occurs, or when the equipment is re-connected to the
OMT after powered off due to some reason.
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4.3 PREPARATION FOR REMOTE CONTROL OF EUIPMENT 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.
Note: When CDMA modem is used, only SMS function is supported to retrieve alarm information and to
provide remote control.
The power and data cables have been factory-connected to the wireless modem. User needs to insert the
SIM / UIM card to the GSM / WCDMA modem.
To insert or replace the SIM / UIM card, locate and press down the recessed button (yellow) to eject the SIM
/ UIM card carrier (refer to the following figure). Insert the SIM / UIM card and push back the carrier until it is
latched in place.
SIM card
SIM card carrier
Yellow button
Indicator LED
Modem RF output
(SMA connector)
RS232 port
Power port
SIM card
SIM card carrier
Yellow button
Indicator LED
Modem RF output
(SMA connector)
RS232 port
Power port
Figure 12: Wireless modem
The LED indicator on the wireless modem displays the state of the modem:
z LED OFF: equipment power off
z LED ON: equipment power on, no UIM card or no connection to antenna
z LED flash slowly: equipment power on, in SMS mode
z LED flash quickly: equipment power on, in data link mode
Note: Data link mode is dependent on service availability from service provider. If it is required, the
operator’s SIM card must be data-enabled (Circuit Switch Data) and without PIN code.
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4.4 CONNECTION TO OMT
Please refer to the OMT document for details of establishing connection between the equipment and the
OMT.
4.5 OMT OVERVIEW
This section is to be read in conjunction with the OMT document.
The equipment can be monitored and controlled by one of two methods:
z OMT software running on a local PC with serial connection to the equipment.
z OMC (optional) software with remote connection to the equipment over wireless GSM / CDMA
network.
Note: Items in the OMT window is displayed in grey cannot be set or monitored.
The OMT software runs on Windows operating system, and is designed for monitoring and maintaining of
Comba equipments and boosters.
The OMT software can accomplish the following functions:
z Configures and adjusts the equipment’s operating parameters.
z Displays the equipment’s internal operation status.
z Displays the input field level and output power.
z Downloads MCU firmware for upgrading purposes.
Figure 13: OMT v3.20 desktop
In the window above, the left interface of the OMT screen is the equipment information tree area. Click any
tree symbol to collapse the relevant information, and click on the relevant information tree node to view the
details in the right interface of the OMT screen.
The OMT is documented in full and separately in OMT v3.20 Product Manual.
4.5.1 OMT SOFTWARE INSTALLATION
After installing the OMT software onto the PC, connection to the equipment can be done locally or remotely.
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4.5.2 OMT SOFTWARE VERSION
The OMT software is designed to be backward compatible. To view the OMT software version, select [Help]
-> [About] in the OMT software main window. The [About] window will pop up.
4.6 DESCRIPTION OF PARAMETERS
After successful connection of the OMT to the equipment, equipment parameters can be read and/or set.
Parameters include: Common Information, RF Information, Alarm Information, Properties Information and
Other Information.
4.6.1 COMMON INFORMATION
For the TB-2100, the [Common Info.] includes System Info and Auto-Read. Different parameter has
different interface, which can be displayed by clicking the specific parameter node in [Equipment
Information Tree].
Parameter Name Descriptions
System Info.
Shows the equipment model number, Site ID and Site Sub ID
Auto-Read
System will automatically query the selected parameters based on the set time
interval
Table 8: Common information description
Figure 14: System information window
Clicking on [Auto Read] node will bring up a window on the right side of the OMT main screen. Here, the
user can define the parameters to be read automatically and the time interval between each read operation.
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4.6.2 RF INFORMATION
For the TB-2100, the [RF Info.] includes Switch, Pre-ATT, Post-ATT, Alarm Threshold, Power, Gain,
VSWR, and Temperature.
The following table lists the RF parameters and parameter description.
Node Name Description
[Switch] Parameter [Switch] includes “Signal Bypass” and “Bypass Switch Status”
information. The by-pass status is to show whether the RF by-pass switch is
activated or not, indicating the equipment operation status is normal or not.
Customer can manually configure the by-pass switch to [Normal] or [Bypass].
[Pre-ATT] The purpose of adjusting the Pre-ATT is to avoid BTS input power exceeding the
power range and thus to ensure call quality.
[Post-ATT] The purpose of adjusting the Post-ATT is to tune the system ATT to achieve optimal
Gain level.
[Alarm
Threshold]
Alarm Threshold includes “Power Threshold”, “Chassis Over Temperature
Threshold”, “VSWR Threshold” and “Voltage Threshold”. Users can set alarm
threshold according to the specific situation. If the measured value is lower than the
threshold lower limit or higher than the threshold upper limit, the appropriate alarm
will be generated.
[Power] Power Includes UL/DL Input/ Output power and it is equipment specific. This value
should be within the UL/DL Input/Output Power Threshold; else an alarm will be
generated.
A measured value of power can be read directly when signals are connected to the
equipment. When the measured value is lower than the minimum value, it will be
shown as “--”, and if higher than the maximum value, it will be shown as “++”.
[Gain]
Gain includes “Max. Gain”, “UL/DL Calculated Gain”, “UL/DL Actual Gain” and is equipment
specific.
A measured value of gain can be read directly when signals are connected to the
equipment. Adjustment to the UL Pre-ATT will change the UL gain accordingly. In
this way, the UL and DL paths are balanced and the UL output noise level is
adjusted. Therefore, optimal coverage is achievable.
[VSWR] VSWR includes “DL VSWR” and is equipment specific. This value should be within
the VSWR Threshold; else an alarm will be generated.
[Temperature] This refers to equipment temperature and is equipment specific. This value should
be within the Temperature Threshold; else an alarm will be generated.
Table 9: TB-2100 RF parameters description
Click on the [RF Info.] node to view the RF parameters list below the [RF Info.] node. Click on the node of
the specific RF parameter, and the selected RF parameter window will be shown on the right side of the
OMT desktop. User can read and/or set the parameter values. For example, selecting [Alarm Threshold],
the user can set threshold for the relevant parameters.
Refer to the OMT v3.20 Product Manual for the specific description of other RF Information.
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For RF information, this manual will use the [Alarm Threshold] and [Switch] windows to demonstrate the
setting of RF parameters.
Refer to the following figure. For the TB-2100, user can set DL Output Power Low Threshold, DL Input
Power Low Threshold, DL Input Overload Threshold, PA Over Temperature Threshold and DL VSWR
Threshold.
For each threshold setting, Min Value and Max Value have been provided. User must set the value within
the setting range.
Clicking the input field in the [Setting] column, enter the desired value and then select [Config] button to
activate the setting.
In the [Setting] column, one can choose to switch on/off the Bybass Switch by selecting “ON/OFF’ in the
drop down menu.
Figure 15: RF information – Switch window
The following table provides descriptions of the equipment RF parameters.
Identifier Application Setting Initial
Setting
Switch Includes UL/DL [Signal Bybass
Status] and [Bypass Switch1]. The
UL/DL signal bybass status is read
only, the by-pass switch1 is used to
enable or disable DC power supply,
which activate the switch.
‘Bypass’= no DC supply to any
functional module. Equipment is
at by-pass status. ‘Normal' = DC
power supply enabled.
Equipment works normally.
Normal
Pre-ATT Adjusts the gain using DL Pre-ATT DL Pre-ATT: 0~30dB. 20dB
Post-ATT Adjusts the gain using UL / DL ATT. UL Post-ATT1: 0~20dB.
DL Post-ATT2: 0~20dB.
10dB
DL Output
Power Low
Threshold
The threshold setting is to control the
output power amplified by the
equipment. User can set power
threshold according to actual
situation. If the DL measured output
power value is lower than the setting,
DL Output Power Low alarm will be
generated.
The setting range of DL Output
Power Low threshold: 27~43dB
27dB
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DL Input
Power
Threshold
It includes DL Input Power Low
Threshold and DL Input Overload
Threshold. Threshold setting is to
control the input power to the
equipment, neither too low nor too
high. User can set power threshold
according to actual situation.
For the DL Input Power Low
Threshold setting, if the measured
value is lower than the setting, DL
Input Power Low alarm will be
generated.
For the DL Input Overload Threshold
setting, if the measured value is
higher than the setting, DL Input
Overload alarm will be generated.
The setting range of DL Input
Power Low Threshold:
24~43dB
The setting range of DL Input
Overload Threshold:
24~43dB
DL Input
Power
Low
Threshold:
24dB
DL Input
Overload
Threshold:
43dB
PA Over
Temperature
Threshold
Sets the temperature threshold of
PA. A measured temperature is
shown. If the measured temperature
reaches the threshold, the Over
Temperature alarm will be
generated.
The setting range is -40~125
degrees Celsius.
85°C
Downlink
VSWR
Threshold
If the measured value is higher than the
setting, the DL VSWR alarm will be
generated.
DL VSWR threshold ranges
from 1.4 to 2.5.
2.0
Table 10: Management – RF parameters
Power, Gain, VSWR and Temperature are read only parameters, showing the measured values.
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4.6.3 ALARM INFORMATION
Alarm information is equipment specific. The alarm parameters include Master Alarm, Channel Alarm and
External Alarm. Clicking on the specific information node will display detailed specific alarm information on
the right of the OMT desktop. This manual will use the master alarm information window for illustration.
Up to four external devices can be connected to the TB-2100 via the EXT_ALM connector on the bottom of
the enclosure bottom. The working status of external devices can be monitored by the OMT. Alarm
information will be indicated in the External Alarm window.
The following table shows the alarm list for the TB-2100 product:
Alarm name
Uplink LNA Fault Alarm
Chassis Lock
Li-ion Battery Fault Alarm
Downlink PA Alarm
Downlink Input Power Over Load Alarm
Downlink Input Power Low Alarm
Downlink Output Power Low Alarm
Power Supply Down Alarm
Power Supply Fault Alarm
PA Over Temperature Alarm
Downlink VSWR Alarm
External Alarm 1-4
Table 11: Alarm list
Refer to OMT v3.20 Product Manual for the alarm configuration and alarm levels.
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4.6.4 PROPERTIES INFORMATION
Properties information is equipment specific. For the TB-2100, the [Property Info.] includes Checking
Control, Equipment ID, Firmware Info., Equipment Info., Site Location, Comm. Config and Trigger Report.
Click on the specific property information node to view details.
The following table provides descriptions of the [Properties Info.]
Parameter Name Description
Checking Control The [Checking Control] parameter group includes only one parameter –
Enable Phone No Checking. Phone Number Authentication feature is
enabled or disabled by selecting “Enable” or “Disable” from the drop down
menu in the “Enable Phone No Checking” field.
Equipment ID Displays the equipment Site ID and Site Sub ID information.
Firmware Info Displays the MCU firmware information, including detailed product
information, such as the platform on which the product is developed, the
working frequency, output power, etc., and firmware version number.
Equipment Info Displays information such as equipment type, equipment model and
equipment manufacture serial number. The equipment information cannot
be configured.
Site Location Displays the longitude and latitude of the equipment installation site. It refers
to the geographic co-ordinates provided by the operator during site
installation.
Comm. Config Displays the remote control information in groups, such as Checking
Control, IP Address, Phone Number, SMSC Number, Alarm Report Mode,
etc. The Comm. Config information must be manually entered by the user
after successful connection to the equipment.
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. The [Trigger
Report] parameter is used to indicate the status of sending the [New Site
Report] request. There are three statuses: Unreported, Waiting and
Reported.
Table 12: Properties information descriptions
Refer to OMT v3.20 product manual for detailed information.
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4.7 FAULT MANAGEMENT
Fault management involves inspecting and changing the thresholds and managing alarm conditions.
Generally, failure is due to poor radio signal, equipment (module failure) and site issues power, over
temperature).
The alarm is colour-coded to indicate its status and alarm levels. The alarm level is equipment specific. It
could be Alarm, Warning, Error or Critical.
y Green: Normal, no alarm is generated.
y Red: Alarm is generated; the alarm level could be Alarm, Warning, Error, or Critical.
On the tool bar of the main OMT screen, there is an “Alarm Indicator” showing the alarm level in real-time. If
a critical alarm occurs, the alarm indicator will remain at ‘red’.
4.7.1 ALARM ACKNOWLEDGEMENT
When the designated alarm occurs, it will be visible on the OMT and/or reported to the OMC.
If the OMC does not acknowledge after a time-out of three minutes, the same alarm will be reported to the
OMT / OMC. After each time-out, the un-acknowledged alarm will be reported again with a total of three
attempts. If the alarm is acknowledged within the time-out period, and the alarm is deem acknowledged, the
reporting stops.
Alarm is cleared after the necessary diagnosis and rectification has been carried out, and the on-screen
indicator for the designated alarm will change to green.
Every twenty-four hours, the equipment is reset automatically, and any alarm messages held within the
equipment will be cleared. For every five dial-up attempts, the equipment will be reset automatically, and
any alarm messages held within the equipment will be cleared.
If the ‘Power Supply’ is ‘ON’, then no alarm will be generated for Power Down and Power Fault conditions.
Occasional operation tasks are required to handle the alarms. These are given in the following table:
Alarm Condition Diagnosis
Power OFF / Power Fault
alarm
When Power OFF, check AC power cable and verify AC mains
supply is normal. During Power Fault alarm, DC power supply has
no output. Check if DC output is overloaded or short-circuited. The
PSU could be faulty.
UL/DL LNA, UL/DL PA alarms Check power and signal connections of respective modules. If the
power and signal wire connections are OK, then the respective
modules may be faulty. Replace the faulty modules and return it to
the factory for repair.
DL Input/Output Power Low,
DL Input Over load alarms
Clear alarm by correct setting of DL Input/Output Power Low and DL
Input Overload Thresholds. See RF information.
Downlink VSWR alarm Check the antenna system.
Over Temperature alarm Clear alarm by correct setting of Temperature Threshold, including
normal and severe. If alarm cannot be cleared, apply climatic
protection to the equipment.
Chassis Lock alarm Close the enclosure door.
Battery Voltage Low alarm
Check whether the battery backup is abnormal. If so, the battery
should be replaced.
External alarm
If either of the external devices connected to the TB-2100 is faulty,
check the external devices.
Table 13: Alarm diagnosis
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4.8 NON-VOLATILE MEMORY
A non-volatile storage device on the MCU holds the configuration of the equipment. The following
information are preserved in the event of power-loss:
Network Configuration
Site ID / Site Sub ID
SMS report mode including SMS center number and the OMC report number setting
Datalink report mode
Operating Parameters
Pre-ATT
Post-ATT
Power Supply switch
Downlink Output Power
Downlink Input Power
VSWR
Gain
Temperature
Alarm thresholds
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4.9 COMMISSIONING PROCEDURES
The commissioning procedure consists of pre-commissioning and commissioning tasks.
4.9.1 PRE-COMMISSIONING TASKS
The pre-commissioning tasks cover the followings:
1. Following the site survey, inspect and collect site specific data for the equipment: BTS output power,
length of feeder cable, cable and connector loss, location of the TB-2100, etc. Determine the UL and
DL ATT setting of the TB-2100 according to the feeder loss and coverage distance. After data
collection, measurement of the coverage distance must be performed.
2. Verify equipment functionality before working at height:
z Open the enclosure door, and insert the SIM card into the wireless modem.
z Visually check the power connectivity within the equipment, and ensure that the power cable is
correctly and securely connected.
z Before power-on, check that the expected voltage, current and power levels do not violate any
ratings.
z Apply power to the equipment.
z Connect the equipment to the PC installed with OMT software.
z Power on the equipment, and wait until equipment initialization has completed. After successful
connection of the OMT to the equipment, proceed to the next step if no alarm is generated.
Otherwise, check the point of failure and handle the alarm. Set the network and RF parameters.
z After setting the network and RF parameters, verify remote connection via the wireless modem.
At this point, power down and prepare the TB-2100 for installation at the required location.
3. Following installation of the TB-2100 at the required location:
z Visually check the power connectivity within the equipment. Ensure the power cable is correctly
and securely connected.
z Before power-on, check that the expected voltage, current and power levels do not exceed the
ratings.
z Check grounding connection and verify that the ground resistance is less than 5Ω.
z Check the return loss of each feeder cable. The return loss of each feeder cable must be less
than 14dB (VSWR <1.5:1).
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4.9.2 COMMISSIONING TASKS
The commissioning can commence after installation is completed. The following lists the commissioning
tasks:
Commissioning Tasks Observation
1. On-line & inquiry status
z Activate the TB-2100 Main window. After 2 minutes of
system initialization, the MCU LED H3 will be OFF and H1
begins to flash. Click ‘Online’ button to inquiry the working
status of the TB-2100. Proceed to next step if no alarm is
generated, otherwise, check the point of failure and handle
the alarm.
z Set site address and alarm report mode.
2. Set On/off Status and
equipment parameters
z Select ‘Normal’ of bypass switch1. Check and set [System
Info.] and [Properties Info.]
3. Set monitoring system
parameters
z System parameters setting can be done in the
pre-commissioning stage. User can also reset the
parameters (See “Description of Parameters” in section 4).
4. Check DL output power z Adjust the DL ATT to achieve optimal DL output power based
on the measured input power on the OMT screen. At the
same time, set the UL gain to achieve balance between DL
and UL paths.
z Note: To set ATT more accurately, user can measure the
BTS power received at the Tx/Rx end using the power meter
before connecting the TB-2100 to the BTS.
5. Fine Tuning DL/UL Gain z Test the field strength with test mobile, or perform a drive test
and compare with previous drive test result to verify if it
satisfies the requirement. If the field strength is marginally
insufficient and output power is not at maximum, adjust the
DL ATT to achieve the optimal DL Gain.
z Make test calls in the coverage area and adjust the UL Gain
to achieve the best voice quality.
6. Exit the OMT z Commissioning is completed.
Table 14: Commissioning procedures
End of section
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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.
The equipment operation status can be observed remotely through the OMT/OMC.
Periodic inspection of the equipment(s) is recommended. The recommended tasks include:
• Measurement of the return loss of the feeder system.
• Ensure the reliable connection of cables, power cords and facilities located indoor.
• Inspect and record operation status and parameters, such as receive signal level, output noise level, DL
output power of the equipment, from OMC or OMT.
• Check the PSU output voltage.
• Verify that the actual coverage has not degraded.
• Check the controlling and monitoring function.
5.1 O-RING FITTING DETAILS
The “O” ring serves as an effective alternative to prevent the countersunk door bolt from becoming loose
and as a waterproof feature. The “O” rings have already been fitted with the equipment before shipment,
and spare “O” rings are also provided for replacement. When necessary, users can replace the worn out “O”
rings with the spare ones. The following figure illustrates how the “O” ring is fitted with the equipment
enclosure.
Bored hole
O-Ring 7.1X1.8
5.5mm Allen Key
Enclosure
Enclosure Screw M6X35
Figure 16: O-Ring fitting details
End of section
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6 APPENDICES
6.1 APPENDIX A: TOOLS AND EQUIPMENT
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
• Anti-static wrist strap
• Allen key (M5.5)
• Side Cutter
• Frequency counter (e.g. FLUKE PM6685R)
• RF Power Meter (e.g. Bird 5000)
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6.2 APPENDIX B: RMA (RETURN MATERIAL AUTHORIZATION) FORM
End of section
End of Document
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