COMBA mBDA-80 User manual

M
MB BD DA A B BA AN ND D
S
SE EL LE EC CT TI IV VE E
R
RE EP PE EA AT TE ER R
USER MANUAL
MBDA-80 QE: 1-0-0
Comba Telecom Inc.
mBDA-80

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:
This is an unpublished work the copyright in which vests in Comba International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.

USER MANUAL FOR MBDA-80
ENU STATUS : 1-0-0
Copyright - refer to title page
Page 3
0.1 CONTENTS
Section
Page
0.1 CONTENTS .................................................................................................................................................... 3
0.2 INDEX TO FIGURES AND TABLES ................................................................................................................... 5
0.3 HISTORY ....................................................................................................................................................... 7
0.4 GLOSSARY OF TERMS.................................................................................................................................... 8
0.5 SAFETY NOTICES AND ADMONISHMENTS..................................................................................................... 9
1GENERAL INFORMATION ............................................................................................................................ 10
2EQUIPMENT DESCRIPTION.......................................................................................................................... 11
2.1 SYSTEM DIAGRAM...................................................................................................................................... 11
2.2 EQUIPMENT LAYOUT .................................................................................................................................. 12
2.3 EQUIPMENT CONSTITUTION....................................................................................................................... 13
2.4 KIT OF PART................................................................................................................................................ 13
3INSTALLATION ............................................................................................................................................ 14
3.1 WARNINGS AND ALERTS............................................................................................................................. 14
3.2 SITE PLANNING CONSIDERATIONS.............................................................................................................. 15
3.3 INSTALLATION PROCEDURES ...................................................................................................................... 16
3.4 EQUIPMENT CONNECTORS ......................................................................................................................... 25
3.5 EQUIPMENT CONNECTION.......................................................................................................................... 27
4COMMISSIONING ....................................................................................................................................... 29
4.1 PRE-COMMISSIONING TASKS...................................................................................................................... 29
4.2 LED INDICATORS......................................................................................................................................... 29
4.3 COMMISSIONING PROCEDURE ................................................................................................................... 30
5WEB GUI ..................................................................................................................................................... 32
5.1 WEB GUI CONNECTION............................................................................................................................... 32
5.2 WEB GUI INTRODUCTION ........................................................................................................................... 33
5.2.1 [DEVICES] ............................................................................................................................................... 33
5.2.2 [COMMISSIONING] ................................................................................................................................ 35
5.2.3 [FIRMWARE] .......................................................................................................................................... 36
5.2.4 [MANAGEMENT] .................................................................................................................................... 37
5.3 COMMISSIONING PROCEDURE ................................................................................................................... 43
6MAINTENANCE ........................................................................................................................................... 48
6.1 ALARMS...................................................................................................................................................... 48
6.2 TROUBLESHOOTING ................................................................................................................................... 49

USER MANUAL FOR MBDA-80
ENU STATUS : 1-0-0
Copyright - refer to title page
Page 4
7APPENDICES ............................................................................................................................................... 50
7.1 APPENDIX A: TOOLS FOR INSTALLATION AND MAINTENANCE.................................................................... 50
7.2 APPENDIX B: RMA (RETURN MATERIAL AUTHORIZATION) ......................................................................... 51

USER MANUAL FOR MBDA-80
ENU STATUS : 1-0-0
Copyright - refer to title page
Page 5
0.2 INDEX TO FIGURES AND TABLES
Figure 1: mBDA-80............................................................................................................................................10
Figure 2: 2 Bands System Diagram for Example............................................................................................11
Figure 3: Layout of mBDA.................................................................................................................................12
Figure 4: mBDA Screen....................................................................................................................................17
Figure 5: mBDA Rack........................................................................................................................................17
Figure 6: Remove Cover Plates .......................................................................................................................18
Figure 7: PMU Installation.................................................................................................................................18
Figure 8: Combiner Installation.........................................................................................................................19
Figure 9: RF Unit Installation............................................................................................................................19
Figure 10: Completed mBDA with RFU Installation........................................................................................20
Figure 11: Completed mBDA with Six RFU Installation..................................................................................20
Figure 12: Completed mBDA of Four RFU and Two Combiners Installation................................................21
Figure 13: Equipment Cabinet with Pallet........................................................................................................22
Figure 14: mBDA Installation............................................................................................................................22
Figure 15: Secure the Screws ..........................................................................................................................23
Figure 16: Finish Installaiton.............................................................................................................................23
Figure 18: Rack Mounting.................................................................................................................................24
Figure 18: mBDA Front Panel Connectors......................................................................................................25
Figure 19: mBDA Rear Panel Connectors.......................................................................................................25
Figure 20: mBDA Grounding (mBDA Rear Panel)..........................................................................................27
Figure 21: mBDA Power Connection (Rear Panel).........................................................................................28
Figure 22: Pins Allocation for “EXT_ALM” Port for mBDA ............................................................................28
Figure 23: Commissiong Flow Chart................................................................................................................30
Figure 24: Input IP Address..............................................................................................................................32
Figure 25: Input Domain Name ........................................................................................................................32
Figure 26: Input User Name and Password ....................................................................................................32
Figure 27: Web GUI Main Screen....................................................................................................................33
Figure 28: [Devices] Sceen...............................................................................................................................33
Figure 29: Power & Monitoring Unit.................................................................................................................34
Figure 30: RF Unit.............................................................................................................................................34
Figure 31: RF Unit Detail Information...............................................................................................................35
Figure 32: [Commissioning] Screen.................................................................................................................35
Figure 33: [Firmware] Screen –Upgrade ........................................................................................................36
Figure 34: [Firmware] Screen –Pop-up Window 1.........................................................................................36
Figure 35: [Firmware] Screen - Swap ..............................................................................................................37
Figure 36: [Management] Sceen......................................................................................................................37
Figure 37: Management –Import&Export........................................................................................................38
Figure 38: Management –IP Setting...............................................................................................................38
Figure 39: Management –SNMP Setting........................................................................................................39
Figure 40: Management –Security..................................................................................................................39
Figure 41: Modify Password .............................................................................................................................40
Figure 42: Management –Device Reset.........................................................................................................40
Figure 43: Management –PA Reset................................................................................................................41
Figure 44: Management –Device Info.............................................................................................................41
Figure 45: Management –Isolation..................................................................................................................42
Figure 46: Management –Report ....................................................................................................................42
Figure 47: Commissioning Procedure –Start..................................................................................................43
Figure 48: Commissioning Procedure –Site Info. Setting..............................................................................43
Figure 49: Dev Info & Date/Time......................................................................................................................44
Figure 50: Commissioning Procedure –Isolation Detective...........................................................................44
Figure 51: Commissioning Procedure –Isolation Detective Confirm............................................................45
Figure 52: Commissioning Procedure –Isolation Detection Failed................................................................45
Figure 53: Commissioning Procedure –Isolation Detection Finish................................................................45

USER MANUAL FOR MBDA-80
ENU STATUS : 1-0-0
Copyright - refer to title page
Page 6
Figure 54: Commissioning Procedure –Subband bandwidth and Switch Setting........................................46
Figure 55: Commissioning Procedure –DL Output Power Setting Screen...................................................46
Figure 58: Commissioning Procedure –Finish ...............................................................................................47
Table 1: mBDA Components............................................................................................................................13
Table 2: KOP......................................................................................................................................................13
Table 3: mBDA Connections ............................................................................................................................26
Table 4: Pin Definition of “EXT_ALM” Port for mBDA.....................................................................................28
Table 5: LED Indications...................................................................................................................................29
Table 6: Commissioning Procedure.................................................................................................................31
Table 7: Monitoring Unit Alarm List..................................................................................................................48
Table 8: RF Unit Alarm List...............................................................................................................................48
Table 9: Monitor Unit Alarms Diagnosis...........................................................................................................49
Table 10: RF Unit Alarms Diagnosis................................................................................................................49

USER MANUAL FOR MBDA-80
ENU STATUS : 1-0-0
Copyright - refer to title page
Page 7
0.3 HISTORY
Change No.
ENU
Details Of Change
1
1-0-0
This user manual first created in Sep. 2017.

USER MANUAL FOR MBDA-80
ENU STATUS : 1-0-0
Copyright - refer to title page
Page 8
0.4 GLOSSARY OF TERMS
ALC
Automatic Level Control
ATT
Attenuation
BDA
Bi-direction Amplifier
BS
Base Station
BTS
Base Transceiver Station
DL
Downlink
DT
Donor Terminal
FOU
Fiber Optical Unit
GUI
Graphic User Interface
ID
Identification
LNA
Low Noise Amplifier
MCU
Main Control Unit
MT
Mobile Terminal
MTBF
Mean Time Between Failures
MBDA
Master Unit
NC
Normally Closed
NF
Noise Figure
NO
Normally Open
OMC
Operation & Maintenance Center
OMT
Operation & Maintenance Terminal
PA
Power Amplifier
POI
Point of Interconnects
PSU
Power Supply Unit
RF
Radio Frequency
RFU
Radio Frequency Unit
RU
Remote Unit
SMA
Sub-Miniature “A” Connector
TX/RX
Transmit/Receive
UL
Uplink
VAC
Volts Alternating Current
VSWR
Voltage Standing Wave Ratio
WCDMA
Wideband Code Division MBDAltiple Access

USER MANUAL FOR MBDA-80
ENU STATUS : 1-0-0
Copyright - refer to title page
Page 9
0.5 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 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. This is NOT a CONSUMER device. It is designed for installation by FCC LICENSEES
and QUALIFIED INSTALLERS. You MUST have an FCC LICENSE or express consent of an FCC
Licensee to operate this device. You MUST register Class B signal boosters (as defined in 47 CFR
90.219) online at www.fcc.gov/signal-boosters/registration. Unauthorized use may result in
significant forfeiture penalties, including penalties in excess of $100,000 for each continuing
violation.
Note: The grantee is not responsible for any changes or modifications not expressly approved by the
party responsible for compliance. Such modifications could void the user’s authority to operate the
equipment.
This device complies with Part 90 of the FCC Rules. Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.
For compliance with the general population RF exposure limits, each individual antenna used for this
transmitter must be installed to provide a separation distance greater than 29.65cm or more from all
persons during normal operation and must not be co-located with any other antenna for meeting RF
exposure requirements.
Alert:
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.
The application antenna and RF cable are not provided. The antenna gain should not exceed 10 dBi.
End of Section

USER MANUAL FOR MBDA-80
ENU STATUS : 1-0-0
Copyright - refer to title page
Page 10
1 GENERAL INFORMATION
The mBDA-80 Band Selective Wireless Repeater is designed for operation in 800MHz network.Digital
band-specific linear amplifier amplifies the desired BTS carriers and provides superior out-of-band
rejection. Typical units with adjustable bandwidth are programmed to specific requirements of the
network. Remote configuration and surveillance is possible through Comba’s remote control and
monitoring system, via PC or Ethernet to the OMC.
Main feature:
mBDA-80 is a high quality repeater with the following features:
Supports CDMA and LTE operating.
Supports multi operator configurations and up to 3 sub bands per band.
Adjustable sub band via Web OMT software.
Friendly and easy Web OMT interface via RJ45 connection.
Integrated network card for remote configuration, monitoring and control.
The figure below shows the enclosure.
Figure 1: mBDA-80
NOTE: RF module is slot undependent.
End of Section

USER MANUAL FOR MBDA-80
ENU STATUS : 1-0-0
Copyright - refer to title page
Page 11
2 EQUIPMENT DESCRIPTION
2.1 SYSTEM DIAGRAM
Donor
Ant
Modem
Power
Supply
Alarm
Indicator
DL PA
UL PA UL LNA
DL LNA
Main Control Unit
DT
MT
Mobile
Mobile
Ant
Digital Frequency
Selective Module
DL PA
UL PA UL LNA
DL LNA
Digital Frequency
Selective Module
DT
MT
Ant
Mobile
Figure 2: 2 Bands System Diagram for Example
In the downlink, the BTS signals are received by donor antenna of the repeater. After the duplexer, the
signals are sent to the LNA module for pre-amplification and digital RF integrated module for digital
filtering and frequency conversion. Then the DL signals will be sent to downlink PA to amplify power and
filter via duplexer. After amplification, the signals are transmitted via the MT port to the service antenna.
In the uplink, the mobile signals are received by the service antenna. After the MT port integrated
duplexer, the signals are sent to the LNA, integrated module for digital filtering, then to PA for power
amplification and to duplexer. After that, the uplink signals are sent to the donor antenna for transmission
back to the BTS.

USER MANUAL FOR MBDA-80
ENU STATUS : 1-0-0
Copyright - refer to title page
Page 12
2.2 EQUIPMENT LAYOUT
58.6
81.4 58.6
482
26.1436
485.6
439
265.2
Figure 3: Layout of mBDA

USER MANUAL FOR MBDA-80
ENU STATUS : 1-0-0
Copyright - refer to title page
Page 13
2.3 EQUIPMENT CONSTITUTION
mBDA consists of the following parts:
Table 1: mBDA Components
Module
Description
mBDA-RACK
There are total 7 slots in the main chassis, where six slots for RF Units and
Combiner Units, first slot is for Power & Monitoring Unit.
mBDA-PMU
Power & Monitoring Unit (PMU) converts the input voltage into stable DC to supply
power for each RF module and provides monitor control.
mBDA-RFU
RF Unit processes UL/DL signal and amplifies the signal for coverage.
2.4 KIT OF PART
Table 2: KOP
Item
Qty
Image
Rack
1
RF Unit (RFU)
(Packing separately)
1~6
Combiner Unit (CB)
(Optional and Packaged separately)
0~2
Power & Monitoring Unit (PMU)
(Packing separately)
1
Power Supply Cable
(13 Feet 1 inch)
1
Communication Cable
1
End of Section

USER MANUAL FOR MBDA-80
ENU STATUS : 1-0-0
Copyright - refer to title page
Page 14
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 practicable danger, as far as reasonably
possible. Any work activity on or near equipment involving installation, operation or maintenance must be
free from danger, as far as reasonably possible.
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
For the purpose of protecting individuals fromelectrical risk, the equipment provided must be safety in
design 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 or person. It also covers activities that require the use of force or effort, such as
pulling a lever, or operating power tools.
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.

USER MANUAL FOR MBDA-80
ENU STATUS : 1-0-0
Copyright - refer to title page
Page 15
3.2 SITE PLANNING CONSIDERATIONS
3.2.1 SITE PLANNING
Site Considerations
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.
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 system should be well ventilated. The equipment has been designed to
operate at the temperature range and humidity level as stated in the product specifications.
Powering
The power & monitoring unit (PMU) provides power to all modules within the equipment. Depending on
the product variant, it is recommended that the PMU operates on a dedicated AC 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 connected to the equipment:
coaxial cables, power cable, communication cable, and commissioning cable. 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.

USER MANUAL FOR MBDA-80
ENU STATUS : 1-0-0
Copyright - refer to title page
Page 16
3.2.2 SYSTEM 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. (2m; 6 ft. 10 in.).
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.
Where appropriate, ensure unused optical fiber connectors are protected.
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 number of RF connections.
Ensure the equipment will be operated within the stated environment (refer to datasheet).
Where appropriate, confirm available of suitably terminated grade of RF.
Observe handling of all cables to prevent damage.
3.3 INSTALLATION PROCEDURES
3.3.1 GOODS INWARDS INSPECTION
mBDA was factory tested, inspected, packed, and delivered to the carrier with utmost care. Do not accept
shipment from carrier which shows damage or shortage until the carrier’s agent endorses a statement of
the irregularity on the face of the carrier’s receipt. Without documentary evidence, a claim cannot be
processed.
Open and check each package against the packing list. For any shortage, contact Comba Telecom
Systems. Do not remove items from packing materials until installation.
3.3.2 TOOLS
See Appendix A for a full list of tools required for installation and maintenance.

USER MANUAL FOR MBDA-80
ENU STATUS : 1-0-0
Copyright - refer to title page
Page 17
3.3.3 ASSEMBLING
mBDA consists of one Rack and three different modules including PMU ,RFUs and CBs (CB is optional).
All the units are packed separately. Follow the steps below to assemble.
Figure 4: mBDA Screen
Note: PMU must be installed in the leftmost slot; RF Units are independent and can be installed in any of
the remaining six slots.
PMU must be installed in the leftmost slot. When assembling an mBDA system with DT Combiner and MT
Combiner modules, CBs and RFUs can be installed in any of the remaining six slots.
Step1: The rack with cover plates is shown in Figure 3. Please remove the cover plates before installing
related modules.
Figure 5: mBDA Rack

USER MANUAL FOR MBDA-80
ENU STATUS : 1-0-0
Copyright - refer to title page
Page 18
Figure 6: Remove Cover Plates
Step 2: PMU installation: Insert PMU and fasten the screws.
Figure 7: PMU Installation
Step 3: Combiner Installation: When Combiners are required, insert Combiners and fasten the screws
(see below Figure)

USER MANUAL FOR MBDA-80
ENU STATUS : 1-0-0
Copyright - refer to title page
Page 19
Figure 8: Combiner Installation
Step 4: RF Units installation: Insert RFUs into any slot and fasten the screws.
Figure 9: RF Unit Installation
Note: Make sure the DIP switch (located towards the rear of the RFU) is set to the ON position (see below
Figure)

USER MANUAL FOR MBDA-80
ENU STATUS : 1-0-0
Copyright - refer to title page
Page 20
Figure 10: Completed mBDA with RFU Installation
Step 5: Finish Installation.
Figure 11: Completed mBDA with Six RFU Installation