Figure 24: Equipment ID ..............................................................................................................................20
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,
authorised 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
that 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 labeling is supplemented by safety notices in the appropriate equipment manual. These notices
contain additional information on the nature of the hazard and may also specify precautions.
Warning 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 Notice:
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.
Cautions:
The recommend use distance for external antenna is larger than 3.17 meter.
End of section
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USER MANUAL FOR RD-8132
1 EQUIPMENT DESCRIPTION
The RD-8132 CDMA repeater is designed for CDMA850 networks. Band-specific linear MCPA and filtering
effectively amplifies the desired BTS carriers and provides superior out-of-band rejection. The unit can
incorporate two adjustable bandwidth segments. Remote configuration and surveillance is possible
through Comba’s remote control and monitoring system via PC or wireless modem to the OMT/OMC.
Internal Li-ion backup battery ensures alarm signals are sent out during power failure. The unit comes in a
sealed, cast aluminum enclosure, suitable for operation in all weather conditions.
This is an ideal product for outdoor coverage, especially for rural sides and mountain areas without signal
coverage. Site location shall be selected with care to avoid radiation effect to human being though this
product is meeting FCC regulation requirement. Any installation, adjustment, maintenance and repair of
the equipment must only be carried out by trained, licensed engineer.
1.1 BLOCK DIAGRAM
DL Band Selective
Module
PA1
LNA2
Power
Supply
Li-ion
BATT
MT
Mobile
Ant
Mobile
BTS
OMT
Computer with
Data card
Wireless
Modem
Donor
Ant
DT
Modem
LNA1
PA2
Alarm
Indicator
DL Band Selective
Module
UL Band Selective
Module
UL Band Selective
Module
Main Control Unit
OMC
OMT
External
Power
Figure 1: Block Diagram
In the downlink, the signal from the BTS is divided into RX/TX by duplexer in DT end and sent to LNA1,
then band selective module for selecting desired signals, followed by PA1 for amplifying the signal, and
then to duplexer in MT terminal; finally the signals are sent to the service antenna for signal coverage.
In the uplink, the mobile signals are received by the service antenna. Divided in RX/TX by the duplexer in
MT terminal and followed by LNA2, then band selective module for selecting desired signals, followed by
PA2 for amplifying. After the duplexer of DT end, the signals are sent to the donor antenna for
transmission back to the BTS.
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USER MANUAL FOR RD-8132
1.2 EQUIPMENT CONSTITUTION
1.2.1 EQUIPMENT ENCLOSURE LAYOUT
Below is the enclosure layout:
600
450
Figure 2: Equipment Enclosure Layout
1.2.2 EQUIPMENT INTERNAL LAYOUT
This system typically consists of the following sub modules.
295
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Figure 3: Equipment Internal Layout
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USER MANUAL FOR RD-8132
No Identifier Functional Description
UL Frequency Selective
1
Module
DL Frequency Selective
2
Module
3 UL Power Amplifier (PA)
4 DL Power Amplifier (PA)
The frequency selective module is used to select desired signals and
filter unwanted signals effectively.
PA fulfils power amplification function.
5
Integrated DPX (DT)
6
Integrated DPX (MT)
7 Main Control Unit(MCU)
8 Power Supply Unt (PSU)
9 Li-ion Battery
10 Distribution Board
11 Surge Protector
12 Wirelss Modem
Integrated duplexer in DT end is integrated with Low Noise Amplifier
to pre-amplify the downlink signal and DL input power testing board to
test downlink input power; Integrated duplexer in MT end is integrated
with Low Noise Amplifier to pre-amplify the uplink signal and DL
VSWR testing borad to test DL VSWR & DL output power.
The MCU is used to monitor and control the operation, it also provide
communication interfaces for remote control and suppervision. LED
indicators on the board provide operation status information.
The PSU converts the input voltage into a stable DC power for
internal functional units and charge the Li-ion battery.
The Li-ion battery pack provides back-up power supply for internal
modems up to three hours in the event of main power failure.
Each distribution board serves as a distributor for power and internal
communication within the equipment. On the distribution board
located the following connections: connection to function modules,
MCU, RS232 for local commissioning.
The internal surge protectors are to provide protection to the PSU. On
the top of each surge protector is a little window, beneath which is a
coloured indicator. ‘Green’ indicates protection is available, and in the
event of a fault, the colour will turn to ‘Black’. When this occurs, the
surge protector has to be replaced.
When the equipment is DC powered, no surge protector is required.
Wirelss modem is used for remote controlling and monitoring for
alarm transmission. It has connection for RF, data and power.There is
an indicator LED to show the modem status.
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USER MANUAL FOR RD-8132
2 INSTALLATION
2.1 INSTALLLATION CHECKLIST AND PREPARATION
2.1.1 REPEATER INSTALLATION CHECKLIST
Installation Location Requirement Considerations
Provided power cord length is about 4m. Use a
dedicated AC breaker or fuse circuit with good access
Power Supply
EMC and Interference
Suitable operating environment -33 oC to +55 oC and maximum 95% relative humidity.
2.1.2 ANTENNA INSTALLATION CHECKLIST
Installation Location Requirement Considerations
Locate donor antenna in order to receive the
most appropriate signal level from the desired
BTS and to shield it from other signals at the
same time.
Locate the service antenna directed away from
the donor cell.
Always try to maximize Isolation between
donor antenna and service antenna.
I > Gmax-13dB
2.1.3 PREPARATIONS
to an earthing point. Here are the power supply
options for this repeater:
AC100~240V: 100V~240V/47Hz~63Hz
Do not locate near large transformers or motors that
may cause electromagnetic interference.
Field intensity of receiving site: Typical mobile phone
test field intensity ≥ -70dBm
The isolation must be 13 dB larger than the maximum
gain of the repeater in operation.
zOpen and check the content of the package received against the packing list. If any exernal
damages, please report to shipping agent. If any items are missing, contact Comba Telecom System.
z
Item Product Identifier Qty Remark
Mounting Rack R-9122C8-5140/1 1
Masonry Bolt M10x110 8
U Bolt M10x85x110 2
7-pin CPC connector X14J7P 1
Allen Key 5.5mm 1
Equipment Key N/A 2
Local Commissioning cable R-9122C/R-9122AC 1 Mark "9122"
Equipment Replacement Fuse T6.3AL250V 2
OMT Software and User
Manual
Equipment User Manual
zPrepare installation tools. The following are the recommended tools for new installation:
Tool Dimension
Electrically operated drill and masonry drill bits 12mm
Ring Spanner Assorted size: 12~30mm
Allen Key 5.5mm
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On CDRom
OMT V3.22 or above 1
This manual 1
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