Comba Telecom SP-2110 Technical Document

EQUIPMENT MANUAL FOR SP-2110
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SP-2110 WCDMA
BAND ADJUSTABLE PICO REPEATER
EQUIPMENT MANUAL
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:
International Documentation Centre
Comba Telecom
This is an unpublished work the copyright in which vests in Comba International ("Comba").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.

EQUIPMENT MANUAL FOR SP-2110
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0.2 CONTENTS
Section Page
0.2 CONTENTS ........................................................................................................................... 2
0.3 INDEX TO FIGURES AND TABLES ..................................................................................... 3
0.4 HISTORY............................................................................................................................... 4
0.5 ISSUE CONTROL ................................................................................................................. 5
0.6 REFERENCES ......................................................................................................................6
0.7 GLOSSARY OF TERMS ....................................................................................................... 7
0.8 SAFETY NOTICES AND ADMONISHMENTS...................................................................... 8
0.9 SERVICING POLICY AND RETURN OF EQUIPMENT ....................................................... 9
0.10 READERS COMMENTS ....................................................................................................... 9
1GENERAL INFORMATION ................................................................................................. 11
2EQUIPMENT DESCRIPTION.............................................................................................. 12
2.1 SP-2110 SYSTEM DIAGRAM ............................................................................................. 12
2.2 GENERAL APPLICATION................................................................................................... 13
2.2.1 USING INTEGRATED ANTENNA....................................................................................... 13
2.2.2 USING EXTERNAL ANTENNA (OPTIONAL) ..................................................................... 13
2.3 GENERAL DESCRIPTION.................................................................................................. 14
2.4 EQUIPMENT LAYOUT........................................................................................................ 15
2.5 KIT OF PARTS ....................................................................................................................16
2.6 RF SPECIFICATIONS......................................................................................................... 17
2.7 POWER, MECHNICAL AND ENVIRONMENTAL SPECIFICATIONS................................ 18
3INSTALLATION ...................................................................................................................19
3.1 WARNINGS AND ALERTS ................................................................................................. 19
3.2 SITE PLANNING CONSIDERATIONS................................................................................ 20
3.2.1 REPEATER INSTALLATION CHECKLIST ......................................................................... 21
3.2.2 ANTENNA INSTALLATION CONSIDERATION ................................................................. 21
3.3 INSTALLATION PROCEDURES ........................................................................................ 22
3.3.1 GOODS INWARDS INSPECTION ...................................................................................... 22
3.3.2 TOOLS................................................................................................................................. 22
3.3.3 PREPARATION ................................................................................................................... 22
3.3.4 EXTERNAL ANTENNA CONNECTION .............................................................................. 23
3.3.5 WALL MOUNTING OPTION ............................................................................................... 24
3.3.6 DRIP-LOOP.........................................................................................................................25
3.3.7 EQUIPMENT CONNECTIONS ........................................................................................... 25
4COMMISSIONING............................................................................................................... 26
4.1 MCU LED INDICATORS ..................................................................................................... 27
4.2 EQUIPMENT POWER-UP .................................................................................................. 27
4.3 SYSTEM COMMISSION ..................................................................................................... 28
4.4 MCU RESET........................................................................................................................29
5SYSTEM MAINTENANCE................................................................................................... 30
6APPENDICES......................................................................................................................31
6.1 APPENDIX A: TOOLS FOR INSTALLATION AND MAINTENANCE ................................. 31
6.2 APPENDIX B: RMA (RETURN MATERIAL AUTHORIZATION) FORM ............................. 32

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0.3 INDEX TO FIGURES AND TABLES
Fig 1: Top, front and side Views of SP-2110 enclosur .........................................................................11
Fig 2: SP-2110 System diagram ...........................................................................................................12
Fig 3: Application of Integrated Antenna...............................................................................................13
Fig 4: Application of External Antenna..................................................................................................13
Fig 5: SP-2110 equipment internal view ...............................................................................................15
Fig 6: Conversion for External Antenna................................................................................................23
Fig 7: Mounting Arrangement ..............................................................................................................24
Fig 8: Wall mounting overview ..............................................................................................................24
Fig 9: Connecting to SP-2110...............................................................................................................25
Fig 10: Dial Switches and MCU area ....................................................................................................26
Fig 11: Location of LEDs.......................................................................................................................27
Fig 12: Function of dial switches...........................................................................................................29
Table 1: SP-2110 KOP .........................................................................................................................16
Table 2: RF specifications.....................................................................................................................17
Table 3: Power, Mechanical and environmental specifications ............................................................18
Table 4: Repeater Installation checklist ................................................................................................21
Table 5: Antenna installation checklist..................................................................................................21
Table 6: LEDs colour and indication .....................................................................................................27
Table 7: SP-2110 system commissioning procedures .........................................................................28
Table 8: Comparison between swich-setted working channel and actual working channel ................29

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0.4 HISTORY
Change No. ENU Details Of Change
1 1-0-0 Initial product identifier RS-3110, subsequently renamed
Doc. created on 14th September, 2005
2 1-1-0 Revised for product update on 15th November, 2005
3 1-2-0 KOP revised on 20th February, 2006
4 1-3-0 Updated on specification on 6th April, 2006
5 1-3-1 Revisd on commissioning procedure on Mar, 2008

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0.5 ISSUE CONTROL
Date 04
Oct
05
15
Nov
05
20
Feb
06
6
Apr
06
20
Mar
08
Section
All all all KOP Spec. all

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0.6 REFERENCES
0.6.1 RS-3110 V1.0 UMTS Pico Repeater Original manual ,
released in August, 2005
0.6.2 SP-2110 datasheet Issue C2,
released on 21-Feb-2006
WCDMA Indoor Band Adjustable Repeater,
Senior Product Specialist: Tommy Sun

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0.7 GLOSSARY OF TERMS
Acronym Definition
ALC Automatic Level Control
ATT Attenuation
BS Base Station
BTS Base Transceiver Station
CDMA Code Division Multiple Access
dB Decibel
dBm Decibels relative to 1 milliwatt
DL DL
DPX Duplexer
DT Donor Terminal
EEPROM Electrically Erasable Programmable Read Only Memory
FS Frequency Selector
FSA Frequency Selector Amplifier
GSM Global System for Mobile Communication
Hz Hertz
ID Identification
LNA Low Noise Amplifier
MCU Main Control Unit
MHz Megahertz
MS Mobile Subscriber
MT Mobile Terminal
MTBF Mean Time Between Failures
NC Normally Closed
NF Noise Figure
NO Normally Open
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 (coaxial cable connector type)
UL UL
VAC Volts Alternating Current
VSWR Voltage Standing Wave Ratio

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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 colored 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 which 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 which 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

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Email: [email protected]
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 could occur.
In order that any amendment/remedial action can be carried out promptly, we would appreciate your
co–operation in filling out and returning a photocopy of this customer reply sheet as soon as possible.
Customer Information:
Name
Title
Company
Date
Address
Telephone Number
Customer Comments:
Equipment title SP-2110 QE
ENU 1-3-1
Page number
Paragraph number
Line number
Figure number
Details of inaccuracies
Other comments
Contact points:
International Documentation Centre
E-mail: [email protected]
FAX: [phone]
End of section

EQUIPMENT MANUAL FOR SP-2110
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1 GENERAL INFORMATION
SP-2110 is a WCDMA Band Adjustable Pico Repeater (Hereinafter called “system”). This system is
used in indoor locations where small-scale signal coverage for metropolitan environment is desired
(e.g., hotels, department stores and shopping malls, underground parking lots, convention centres,
arenas, etc.)
This system is designed for indoor operation in the WCDMA band. Its bi-directional amplifier is used
to enhance signal strength in small and medium size areas in a WCDMA network. Besides, its center
frequency is adjustable and it’s IF filtering provides superior out-of-band rejection.
Characteristics of the SP-2110 repeater are as follows:
•System commission can be made manually without any additional equipment.
•With integrated antenna and optional external antenna connection.
•System gain is adjustable automatically according to the temperature variation within the unit,
ensuring stable operation under ambient temperature fluctuations.
•Low noise amplifier improves system noise figure for better voice quality and reduced drop call.
•External power supply.
•The equipment lid can be removed manually without using any tools.
•Highly integrated design with miniaturized chassis, small size, light weight and easy use.
The figure below presents the enclosure layout of SP-2110:
150
54
38
235
Fig 1: Top, front and side Views of SP-2110 enclosur

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2 EQUIPMENT DESCRIPTION
2.1 SP-2110 SYSTEM DIAGRAM
DC 6V
Down Link
Up Link
MT
DT
fP
fP
PA2
LNA1PA1
LNA2
BTS
DT ANT
Internal
ANT
Mobile
Phone
MCU
PLL
LED
DC 6V
Downlink
Uplink
MT
DT
fP
fp
PA2
LNA1
PA1
LNA2
BTS
DT ANT
Internal
ANT
Mobile
Phone
MCU
PLL
LED
DC 6V
Down Link
Up Link
MT
DT
fP
fP
PA2
LNA1PA1
LNA2
BTS
DT ANT
Internal
ANT
Mobile
Phone
MCU
PLL
LED
DC 6V
Downlink
Uplink
MT
DT
fP
fp
PA2
LNA1
PA1
LNA2
BTS
DT ANT
Internal
ANT
Mobile
Phone
MCU
PLL
LED
Fig 2: SP-2110 System diagram
As shown in the above figure, in downlink BTS signals are received by donor antenna (connected
with DT port and located outdoor). After the duplexer the signals are sent to LNA for pre-amplification,
to FSA afterwards to get required output power. Then the signals are filtered by duplexer and are sent
to service antenna (connected with MT port and located indoor) to cover the area.
In uplink the signals from subscriber’s handset are sent to the device through service antenna. After
the duplexer the signals are sent to LNA and FSA. Then after the duplexer again, the signals are sent
to BTS through donor antenna.
Note：the mobile antenna can be either the defaulted integrated antenna or the optional external
antenna according to customer’s requirements.

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2.2 GENERAL APPLICATION
2.2.1 USING INTEGRATED ANTENNA
Integrated antenna is applicable for small-scale rooms. This system is defaulted as integrated
antenna, which means the input signals are transmitted without using external mobile antenna. Refer
to the figure below:
SP-2110
Integrated Antenna
SP-2110
Integrated Antenna
Fig 3: Application of Integrated Antenna
2.2.2 USING EXTERNAL ANTENNA (OPTIONAL)
For extended coverage, external antenna(s) can be used as per the coverage requirement. External
antenna is applicable for multi-room coverage. A power divider and the required quantity of
antennas are needed. In order to realize external antenna connection, a simple jumper cable is to be
installed within the system.
SP-2110SP-2110
Fig 4: Application of External Antenna

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2.3 GENERAL DESCRIPTION
The SP-2110 system consists of the following:
Removable LED: Small cover to hide the LEDs and has a simple latch to keep the cover securely in
place.
Integrated Module: includes Main Control Unit, UL/DL RF LNA and FSA. It is used either to amplify
the UL/DL signals that effectively reject the undesired signals, or to control and monitor the working
parameters of the repeater.
Integrated Antenna (defaulted): is used to transmit DL signals and receive UL signals.
Three Dial Switches: for setup of ‘Freq Control’, ‘Freq Offset’ and ‘Gain’. Located on the lower-right
of the internal operating panel and are used to set and operate system commissioning.
•Freq Control: is used to set centre frequency and control the working band of the equipment.
•Freq Offset: is used to offset the working frequency preset by “Freq Control”.
•Gain: is used to adjust and control equipment gain, which are operated manually by users
according to the actual input signal strength.
External PSU: Converts the mains voltage into 6VDC.

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2.4 EQUIPMENT LAYOUT
DT DC MT
Freq
Control
Freq
Offset
Gain
Dial Switch
Antenna
Converting
ALARM
RUN
RSSI1
RSSI2
RSSI3
Integrated Module
Integrated
Antenna
LEDs
Port
port
DT DC MT
Freq
Control
Freq
Offset
Gain
Dial Switch
Antenna
Converting
ALARM
RUN
RSSI1
RSSI2
RSSI3
Integrated Module
Integrated
Antenna
LEDs
Port
port
Fig 5: SP-2110 equipment internal view

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2.5 KIT OF PARTS
For each SP-2110, the following are shipped:
Product Identifier Description Quantity
PC-220602F0 DC Power Supply 1
Φ6 Wall Plug 2
ST4X30 Self-tapping screw 2
RS-31PICO SMA-SMB jumper cable for external antenna connection 1
T1-RS3110-5107 LEDs Cover 1
SP-2110 QE 1-3-1 This manual 1
Table 1: SP-2110 KOP

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2.6 RF SPECIFICATIONS
Frequency Range, Uplink – [MHz] 1920 – 1980
Frequency Range, Downlink – [MHz] 2110 – 2170
Operating Bandwidth – [MHz] 5,10,15
Max. System Gain – [dB] 60 ±2
Gain Adjustable Range (1 dB step) – [dB] 0-28 ±1.5
Max. Output Power (with ALC) – [dBm]
- Downlink, With Internal Antenna
With External Antenna
- Uplink
17 ±1.5
16 ±1.5
17 ±1.5
Pass Band Ripple, 3,84MHz p-p – [dB] ≤2
System Noise Figure (UL) @Maximum Gain – [dB] ≤5
Group Delay – [µsec] ≤4.0
Spurious and Intermod – [dBm] Refer to
*Note
Absolute Max. RF Input Power – [dBm] 10
Downlink Input VSWR ≤1.5
Impedance – [Ω] 50
Table 2: RF specifications
*Note: Compliance with 3GPP TS 25.106 V6.1.0 standards.
Measurement taken at room temperature.

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2.7 POWER, MECHNICAL AND ENVIRONMENTAL SPECIFICATIONS
Power Supply – [VAC] 220VAC –> 6VDC
Power Consumption – [W] 20 (approx.)
Dimensions, L x W x H – [mm] 235 x 150 x 54
Housing Material Plastic/Aluminum
Housing Color White/Grey Anodized
Weight – [kg] 1.5 (approx.)
Connector Type SMA
Operation Temperature – [°C] -20 to +40
Operating Humidity – [%] ≤85
Cooling Convection
MTBF – [hrs] > 50000
Environment Class IP40
Table 3: Power, Mechanical and environmental specifications
End of section

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3 INSTALLATION
3.1 WARNINGS AND ALERTS
Radio Frequency energies
There may be situations, particularly the workplace environments adjacent to 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 as to prevent as far as reasonably practicable
danger. Any activity, such as installation, operation and maintenance, on or near the equipment must
be as far as reasonably free from danger.
Where there is a risk of damage to electrical systems due to adverse weather, extreme temperatures,
wet, corrosive or dirty conditions, flammable or explosive atmosphere, then the system must be
suitably installed to avoid such a danger.
Protective Earthing
Equipment provided for the purpose of protecting individuals from electrical risk must be properly
used and maintained.
Handling Precautions
Precautions should be taken in equipment handling activities including lifting, lowering, pushing,
pulling, carrying, moving or holding, or the activities to prevent an object, animal or a person going
into the chassis, or the activities when extra efforts are needed such as pulling a lever, or operating
power tools.
ESD
Take necessary precautions when handling ESD-sensitive devices. Assume that all solid-state
electronic devices are ESD-sensitive. Do use a grounded wrist strap or the like while working with
ESD-sensitive devices. Transport, store, and handle ESD-sensitive devices in static-free
environments.

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3.2 SITE PLANNING CONSIDERATIONS
Site considerations
The repeater is designed for indoor installation and operation.
Installation location
Mounting surface shall be capable of supporting weight of the equipment, allow 1.5Kg for the SP-
2110 equipment. Physical location should be able to achieve signal strength of better than -70dBm
from the BTS antenna, and the MT antennas should provide the required coverage.
Antenna separation
For optimal operation, the physical separation of the MT and DT antennas should satisfy the condition
for I > GMAX +10dB, where I represents isolation between MT and DT ports.
Environmental
Humidity has an effect on the reliability of the equipment. It is recommended to install the equipment
in location having stable temperature and un-restricted air-flow.
SP-2110 equipment has been designed to operate at the temperature range from -20°c to +40°c with
relative humidity at ≤85%.
Powering (AC mains supply)
The external power supply unit provides power to all modules within the chassis. The equipment
accepts 6VDC via an external PSU.
In order to avoid electromagnetic interference, select the SP-2110 mounting location to minimize
interference from electromagnetic sources such as: large electricity powered equipment.
Grounding requirement
Verify the equipment has been well grounded, this includes antennas and all cables connected.
Ensure lightning protection for antennas is properly grounded.
Cable routing
The RF cables for SP-2110 have SMA (F) connectors; other cable connects the equipment with the
external PSU.
Manual handling
During transportation and installation, take necessary handling precautions to avoid potential physical
injury to the installation related personnel and/or damages to the equipment.