COMBA RA-2100 User manual

INSTALLATION GUIDE FOR RA-2100 (MCPA)
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INSTALLATION GUIDE
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.
This is an unpublished work the copyright in which vests in Comba International ("Comba").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.
RA-2100 (MCPA)
WCDMA2100 OPTICAL BAND SELECTIVE
REPEATER

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0.2 CONTENTS
Section Page
0.2 CONTENTS ........................................................................................................................... 2
0.3 INDEX TO FIGURES AND TABLES ..................................................................................... 4
0.4 HISTORY............................................................................................................................... 6
0.5 ISSUE CONTROL ................................................................................................................. 7
0.6 REFERENCES ......................................................................................................................8
0.7 GLOSSARY OF TERMS ....................................................................................................... 9
0.8 SAFETY NOTICES AND ADMONISHMENTS.................................................................... 10
0.9 SERVICING POLICY AND RETURN OF EQUIPMENT ..................................................... 11
0.10 READERS COMMENTS ..................................................................................................... 12
1GENERAL INFORMATION ................................................................................................. 13
2EQUIPMENT DESCRIPTION.............................................................................................. 15
2.1 SYSTEM DIAGRAM ............................................................................................................ 15
2.2 TYPICAL APPLICATIONS .................................................................................................. 16
2.2.1 SINGLE FIBER CONFIGURATION .................................................................................... 16
2.2.2 DUAL FIBER CONFIGURATION ........................................................................................ 18
2.3 EQUIPMENT LAYOUT........................................................................................................ 22
2.4 EQUIPMENT CONSTITUTION ........................................................................................... 25
2.5 KIT OF PARTS ....................................................................................................................26
3INSTALLATION ...................................................................................................................27
3.1 WARNINGS AND ALERTS ................................................................................................. 27
3.2 SITE PLANNING CONSIDERATIONS................................................................................ 28
3.2.1 REPEATER INSTALLATION CHECKLIST ......................................................................... 29
3.3 INSTALLATION PROCEDURES ........................................................................................ 30
3.3.1 GOODS INWARDS INSPECTION ...................................................................................... 30
3.3.2 TOOLS................................................................................................................................. 30
3.3.3 PREPARATION ................................................................................................................... 30
3.3.4 RACK MOUNTING OF MOU .............................................................................................. 30
3.3.5 RRU MOUNTING RACK ..................................................................................................... 31
3.3.6 RRU LIFTING LUG.............................................................................................................. 32
3.3.7 WALL MOUNTING OF MOUNTING RACK ........................................................................ 32
3.3.8 POLE MOUNTING OF MOUNTING RACK......................................................................... 33
3.3.9 ATTACHING RRU ONTO MOUNTING RACK.................................................................... 34
3.3.10 DRIP-LOOP......................................................................................................................... 34
3.4 EQUIPMENT CONNECTORS ............................................................................................ 35
3.4.1 MOU CONNECTORS.......................................................................................................... 35
3.4.2 RRU CONNECTORS .......................................................................................................... 43
3.5 EQUIPMENT CONNECTION .............................................................................................. 44
3.5.1 GROUNDING CONNECTION............................................................................................. 44
3.5.2 SERVICE VOLTAGE CONNECTION ................................................................................. 44
3.5.3 LI-ION BATTERY CONNECTION ....................................................................................... 45
3.5.4 RF CONNECTION TO MOU ............................................................................................... 45
3.5.5 OPTICAL CONNECTION .................................................................................................... 45
3.5.6 CONNECTION TO PC ........................................................................................................ 46
3.5.7 BTS ALARM CONNECTION ............................................................................................... 46
3.5.8 EXTERNAL ALARM CONNECTION................................................................................... 46
3.6 PREPARATION FOR REMOTE CONTROL OF EQUIPMENT USING MODEM ............... 47
4COMMISSIONING............................................................................................................... 49
4.1 PRE-COMMISSIONING TASKS ......................................................................................... 49
4.2 LED INDICATORS .............................................................................................................. 49

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4.2.1 MCU LED INDICATORS ..................................................................................................... 49
4.2.2 RRU LED INDICATORS...................................................................................................... 49
4.3 CONNECTION TO OMT ..................................................................................................... 50
4.4 OMT..................................................................................................................................... 51
4.4.1 OMT SOFTWARE INSTALLATION .................................................................................... 51
4.4.2 OMT SOFTWARE VERSION .............................................................................................. 52
4.5 DESCRIPTIONS OF PARAMETERS.................................................................................. 52
4.5.1 COMMON INFORMATION.................................................................................................. 52
4.5.2 RF INFORMATION.............................................................................................................. 52
4.5.3 ALARM INFORMATION ...................................................................................................... 54
4.5.4 FOU ALARMS .....................................................................................................................54
4.5.5 PROPERTIES INFORMATION ........................................................................................... 55
4.6 FAULT MANAGEMENT ...................................................................................................... 56
4.6.1 ALARM ACKNOWLEDGEMENT ........................................................................................ 56
4.7 NON-VOLATILE MEMORY ................................................................................................. 57
4.8 COMMISSIONING PROCEDURES .................................................................................... 58
5MAINTENANCE ..................................................................................................................59
5.1 O-RING FITTING DETAILS................................................................................................. 59
6APPENDICES......................................................................................................................60
6.1 APPENDIX A: TOOLS FOR INSTALLATION AND MAINTENANCE ................................. 60
6.2 APPENDIX B: RMA (RETURN MATERIAL AUTHORIZATION) FORM ............................. 61

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0.3 INDEX TO FIGURES AND TABLES
Figure 1: View of MOU............................................................................................................................... 14
Figure 2: Font, side and bottom views of the RRU enclosure ................................................................... 14
Figure 3: MOU system diagram ................................................................................................................. 15
Figure 4: RRU system diagram.................................................................................................................. 15
Figure 5: Application of one MOU with one RRU through Single Channel FOU with internal WDM ........ 16
Figure 6: Application of one MOU with two RRUs through Dual Channel FOU with internal WDM ......... 16
Figure 7: Application of one MOU with one RRU through Single Channel FOU with external WDM ....... 17
Figure 8: Application of one MOU with two RRUs through Dual Channel FOU with external WDM ........ 17
Figure 9: Application of one MOU with four RRUs through two Dual Channel FOUs with internal WDM 18
Figure 10: Application of one MOU with one RRU through Single Channel FOU..................................... 18
Figure 11: Application of one MOU with two RRUs through Dual Channel FOU ...................................... 19
Figure 12: Application of one MOU with one RRU through Single Channel FOU with WDM installed
externally.................................................................................................................................................... 19
Figure 13: Application of one MOU with two RRUs through Dual Channel FOU with WDM installed
externally.................................................................................................................................................... 20
Figure 14: Application of one MOU with four RRUs through two Dual Channel FOUs............................. 20
Figure 15: Application of one MOU with one RRU through Single Channel FOU with WDM installed
externally.................................................................................................................................................... 21
Figure 16: Application of one MOU with two RRUs through two Dual Channel FOUs ............................. 21
Figure 17: Front view of one MOU with one RRU through single channel FOUs with WDM and DIV...... 22
Figure 18: Front view of one MOU with four RRU through dual channel FOUs without WDM and DIV ... 22
Figure 19: Front view of one MOU with three RRU through one single channel FOU and one dual
channel FOU with WDM and without DIV.................................................................................................. 23
Figure 20: Front view of one MOU with four RRU through dual channel FOUs without WDM and DIV ... 23
Figure 21: Equipment internal layout of RRU without DIV.........................................................................24
Figure 22: Equipment internal layout of RRU with DIV.............................................................................. 24
Figure 23: Rack mounting of MOU ............................................................................................................ 30
Figure 24: Mounting rack dimension.......................................................................................................... 31
Figure 25: mounting rack secure details.................................................................................................... 31
Figure 26: RRU enclosure lifting lug attachment details............................................................................ 32
Figure 27: Wall mounting overview............................................................................................................ 32
Figure 28: Pole mounting overview............................................................................................................ 33
Figure 29: Attaching the RRU onto the mounting rack .............................................................................. 34
Figure 30: MOU Back Panel View ............................................................................................................. 41
Figure 31: Rear-shelf connectivitity of one MOU with one RRU through one single channel FOU .......... 41
Figure 32: Rear-shelf connectivity of one MOU with two RRU through one double channel FOU ........... 42
Figure 33: Rear-shelf connectivity of one MOU with three RRU through one double channel and one
single channel FOUs.................................................................................................................................. 42
Figure 34: Rear-Shelf connectivity of one MOU with four RRU through two double channel FOUs ........ 42
Figure 35: RA-2100 RRU with AC110V PSU ............................................................................................ 43
Figure 36: Pin allocation for “BTS_ALM” port ............................................................................................ 46
Figure 37: Pins allocation for “EXT_ALM” Port.......................................................................................... 46
Figure 38: Wireless modem ....................................................................................................................... 47
Figure 39: Diagram of wireline modem...................................................................................................... 48
Figure 40: Location of RRU LED indicators............................................................................................... 50
Figure 41: OMT v3.20 desktop .................................................................................................................. 51
Figure 42: “O” ring fitting details................................................................................................................. 59
Table 1: MOU shelf equipping rule ............................................................................................................ 23
Table 2: RA-2100 Regular KOP................................................................................................................. 26
Table 3: MOU KOP .................................................................................................................................... 26
Table 4: RRU KOP..................................................................................................................................... 26
Table 5: PSU SIU description .................................................................................................................... 35
Table 6: MCU SIU description ................................................................................................................... 36
Table 7: RFU SIU description .................................................................................................................... 37
Table 8: RFU-DIV SIU description ............................................................................................................. 38

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Table 9: FOU-DIV SIU description............................................................................................................. 38
Table 10: Single Channel FOU with WDM ................................................................................................ 39
Table 11: Single Channel FOU SIU description ........................................................................................ 39
Table 12: Dual Channel FOU with WDM SIU description ......................................................................... 40
Table 13: Dual Channel FOU SIU description ........................................................................................... 40
Table 14: MOU back panel connectors ..................................................................................................... 41
Table 15: RRU connectors......................................................................................................................... 43
Table 16: Pin definition of the BTS_ALM port............................................................................................ 46
Table 17: Pin definition of “EXT_ALM” Port............................................................................................... 47
Table 18: Voltage applied to EXT_ Alarm1~4............................................................................................ 47
Table 19: Wireline modem connectors ...................................................................................................... 48
Table 20: Wireline status LEDs.................................................................................................................. 48
Table 21: MCU LED indicators .................................................................................................................. 49
Table 22: RRU LED indicators................................................................................................................... 49
Table 23: Common Info description ........................................................................................................... 52
Table 24: RF Info description..................................................................................................................... 52
Table 25: Management - RF parameters................................................................................................... 52
Table 26: Alarm List for RA-2100............................................................................................................... 54
Table 27: FOU alarm list ............................................................................................................................ 54
Table 28: Properties information descriptions ........................................................................................... 55
Table 29: Alarms diagnosis........................................................................................................................ 57

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0.4 HISTORY
Change No. ENU Details Of Change
1 1-0-0 RA-2100 (MCPA) user manual first created in Mar 2008.

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0.5 ISSUE CONTROL
Date 25
Mar
08
Section
All All

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0.6 REFERENCES
0.6.1 RA-2100 (MCPA) DS 3-0-0 Datasheet released on Mar 2008
0.6.2 RA-2100-1001YH Original user manual released on Jan 2008
0.6.3 OMT V3.20 QE 1-1-0 OMT V3.20 Software Product Manual released in Feb
2007.

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0.7 GLOSSARY OF TERMS
ALC Automatic Level Control
ATT Attenuation
BTS Base Transceiver Station
CSA Cross Sectional Area
dB Decibel
dBm Decibels relative to 1 milliwatt
DL Downlink
DPX Duplexer
DT Donor Terminal
E/O, O/E Electrical/Optical, Optical/Electrical
FSK Frequency Shift Keying
FOU Fiber Optical Unit
GSM Global Standard for Mobile Communication
Hz Hertz
ID Identification
LNA Low Noise Amplifier
MCU Main Control Unit
MHz Megahertz
MOU Master Optical Unit
MT Mobile Terminal
MTBF Mean Time Between Failures
NF Noise Figure
OMC Operation & Maintenance Center
OMT Operation & Maintenance Terminal
OP Optical Fiber
PA Power Amplifier
PLL Phase Locked Loop
PSU Power Supply Unit
RF Radio Frequency
RFU Radio Frequency Unit
RRU Remote Radio Unit
RX Receive
SMA Sub-Miniature “A” Connector
SIU Slide-In-Unit
DIV Diversity
TX Transmit
UL Uplink
VAC Volts Alternating Current
VSWR Voltage Standing Wave Ratio
WDM Wavelength Division Multiplexer

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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 labeling is supplemented by safety notices in the appropriate equipment manual. These notices
contain additional information on the nature of the hazard and may also specify precautions.
Warning:
These draw the attention of personnel to hazards 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:
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, 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.
This request must be included with the item for repair. Items for repair should be sent to the nearest
Comba office:
COMBA TELECOM LTD.
Hong Kong Office
Address: 611 East Wing, No. 8 Science Park West Avenue, Hong Kong Science Park,
Tai Po, Hong Kong.
Tel: [phone]
Fax: [phone]
Email: [email protected]
Singapore Office
Address: 865 Mountbatten Road, Katong SC #05-43, Singapore 437844
Tel: + 65 6345 4908
Fax: + 65 6345 1186
Email: [email protected]
Thailand Office
Address: 3rd Floor, T. Shinawatra Building, 94 Sukhumvit Soi 23, Sukhumvit Road, Klongtoeynua,
Wattana, Bangkok 10110
Tel: [phone]
Fax: [phone]
India Office
Address: Suit No. 202, Chintels Business Centre, A-11 Kailash Colony, New Delhi 110048, India
Tel: + 91 11 5173 9997 / 8
Fax: + 91 11 5173 9996
Email: [email protected]
Sweden Office
Address: Gustavslundsvagen 147, S- 167 51 Bromma, Stockholm, Sweden
Tel: [phone]
Fax: [phone]
Email: [email protected]
Brazil Sales Office
Address: Rua Gomes de Carvalho 1655 cj 101 / 102, 04547-006 Vila Olímpia, São Paulo, Brazil
Tel: [phone]
Fax: [phone]
Email: [email protected]
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 RA-2100 (MCPA) QI
ENU 1-0-0
Page number
Paragraph number
Line number
Figure number
Details of inaccuracies
Other comments
Contact points:
Technical Writing
E-mail: [email protected]
FAX: [phone]
End of Section

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1 GENERAL INFORMATION
The RA-2100 WCDMA2100 Optical Band Selective Repeater (hereinafter called “RA-2100”) can be used
in a point-to-point or point-to-multipoint distributed antenna system to provide effective coverage
enhancement. It uses fiber transmission and is suitable for applications where large signal coverage is
required, such as citywide enhancement, highways, canyons, campuses, underground tunnels, airports,
convention centres, etc.
This system consists of Master Optical Unit (MOU) RA-2100-D and Remote Radio Unit (RRU) RA-2100-
R. The MOU accommodates slide-in Fiber Optical Unit (FOU) modules that can support up to four RRUs.
RA-2100 provides customer with an option of DIV as required, with which, it performs better in signal
coverage and largely enhances the call quality.
The low loss of optical fiber makes it suitable for long distance transmission. This system can support
optical transmission of up to 10dB signal transmission loss. There is no isolation problem as in standard
off-air repeaters, which means customer can select the service antenna flexibly according to the real
situation, such as directional or omni-directional antenna.
Remote configuration and surveillance is possible through Comba’s OMC remote control and monitoring
system.
Characteristics of RA-2100 are as follows:
•20W total downlink output power, 20W utilising ultra efficient MCPA with advanced linearization
technology.
•DIV technology is applied as an option for cutomers.
•Single Fibre Working.
•RF transmission over Fiber Distributed Antenna System – suitable for large scale indoor & outdoor
coverage enhancement.
•Modular design Master Optical Unit (MOU) allows flexible and scalable configuration.
•Master Optical Unit (MOU) supports up to 4 Remote Radio Units (RRU).
•Built-in alarm interface for remote system monitoring.
•Passive cooling (no fan required).
•IP65 Weatherproof RRU with built-in surge protection.

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The figures below show the equipment enclosure layout of RA-2100 MOU and RRU. For the equipment
with and without DIV, RRU of RA-2100 (MCPA) is the same in specification.
360
482
177
Figure 1: View of MOU
670
215
EXT_ALM 90~130V 50/60Hz
RX_EXTDIV_EXT
RS-485
DIV
OP/Uplink OP/Downlink
TX_EXT
MT RS-232
370
Figure 2: Font, side and bottom views of the RRU enclosure

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2 EQUIPMENT DESCRIPTION
2.1 SYSTEM DIAGRAM
PSU
Backup
Li ion Battery
MCU
AC 110V
AC 220V
DC 48V
O
E
E
0
TX Downlink Adapter
Module
Pre -
amplifier
PA
PA
Combiner
RX Uplink Adapter
Module
E0
DPX
LNA
LNA
DPX
TX/RX
Pre-
amplifier
Figure 3: MOU system diagram
MCU
PSU
UL
LNA
MT
UL/DL
Pre- amplifier
Backup
Li ion Battery
Backup
Li ion Battery
DLPA
AC220/110V
Optical TX / RX
Module
E/O
O/EF
S
K
from MOU
OP OUT
DPX
Figure 4: RRU system diagram
As shown in the above figures, the DL signals from the BTS are coupled directly and converted into
optical signals after amplification in the MOU. Then, the optical signals are transmitted to the RRU via
optical fiber. The Optical TX/RX Module of RRU converts the DL optical signals into RF signals. After
amplification, the signals are transmitted at the MT port to the service antenna.

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On the UL, the signals transmitted by the mobile are converted into optical signals, and then via the UL
optical fiber. The signals are transmitted to MOU, which then converts the optical signals back to RF
signals. After amplification, the signals are transmitted back to the BTS.
Communication over optical fiber allows the RRU to be managed with the same fiber connection to the
MOU. This is achieved by using the integrated Frequency Shift Keying (FSK) modem.
2.2 TYPICAL APPLICATIONS
2.2.1 SINGLE FIBER CONFIGURATION
Single fiber working is possible for RA-2100 equipment supplied with WDM Unit. The WDM allows optical
signals at two different wavelengths to share the same fiber.
The following illustrates two applications of single fiber configuration.
2.2.1.1 Typical Application of Single Fiber Configuration
The figures below are typical applications where WDM, internally or externally installed, is used to
combine/divide two optical signals at the wavelengths of 1310nm and 1550nm on a single optical fiber.
Figure 5: Application of one MOU with one RRU through Single Channel FOU with internal WDM
Figure 6: Application of one MOU with two RRUs through Dual Channel FOU with internal WDM

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TX/RX
1,2
 2=1550nm
OP OUT
MT
ANT
 2 =1550nm
Fiber IN
 1=1310nm
Fiber Out
1=1310nm
OP IN
TX/RX
Figure 7: Application of one MOU with one RRU through Single Channel FOU with external WDM
Figure 8: Application of one MOU with two RRUs through Dual Channel FOU with external WDM

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2.2.1.2 Extension Application of Single Fiber Configuration
A fully equipped MOU can host up to four RRUs. This can be achieved by two Dual Channel FOUs with
internal or external WDM. The following figure illustrates the configuration for MOU with internal WDM
unit:
TX/RX
TX/RX
MT
ANT
1310nm/1550nm
OP UL_DL2 OP UL_DL
MT
ANT
1310nm/1550nm
OP UL_DL1 OP UL_DL
MT
ANT
1310nm/1550nm
OP UL_DL1 OP UL_DL
MT
ANT
1310nm/1550nm
OP UL_DL2 OP UL_DL
Figure 9: Application of one MOU with four RRUs through two Dual Channel FOUs with internal WDM
2.2.2 DUAL FIBER CONFIGURATION
For the RA-2100 equipment without internal WDM Unit, dual fiber configuration is required. The following
illustrates two applications of dual fiber configuration.
2.2.1.1 Typical Application of Dual Fiber Configuration
Typically, one MOU can be connected with one or two RRU(s) using the Single Channel FOU or Dual
Channel FOU, as shown in the two figures below:
Figure 10: Application of one MOU with one RRU through Single Channel FOU

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Figure 11: Application of one MOU with two RRUs through Dual Channel FOU
Shown below is a typical dual fiber application showing the ability to interwork theRA-2100 with existing
fiber (e.g. 1310nm occupied) by using externally installed WDM units.
Coupler
WDM
WDM
WDM WDM
Figure 12: Application of one MOU with one RRU through Single Channel FOU with WDM installed
externally

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Figure 13: Application of one MOU with two RRUs through Dual Channel FOU with WDM installed
externally
2.2.1.2 Extension Application of Dual Fiber Configuration
A fully equipped MOU can host up to four RRUs. This can be achieved by equipping two Dual Channel
FOUs as shown in the figure below.
TX/RX MT
ANT
1310nm
OP Downlink1
TX/RX
OP Downlink
1550nm
OP Uplink1 OP Uplink
1310nm
OP Downlink2 OP Downlink
1550nm
OP Uplink2 OP Uplink
1310nm
OP Downlink1 OP Downlink
1550nm
OP Uplink1 OP Uplink
1310nm
OP Downlink2 OP Downlink
1550nm
OP Uplink2 OP Uplink
ANT
ANT
ANT
MT
MT
MT
Figure 14: Application of one MOU with four RRUs through two Dual Channel FOUs