Comba Telecom RS 5180 User Manual
RS- 5180 CDMA800/1900
INDOOR DUAL BAND
FIBER-OPTIC REPEATER
USERS MANUAL
Contents
1. SYSTEM INTRODUCTION................................ ......................................3
1.1 SYSTEM APPLICATION...................................................................................................3
1.2 SYSTEM C OMPOSITION..................................................................................................3
1.3 SYSTEM C ONFIGURATION..............................................................................................4
1.4 SYSTEM APPEARANCE ...................................................................................................5
2. TECHNICAL EXPLANATIONS................................ ...............................7
YSTEM COMPOSITION
2.1 S
..................................................................................................7
2.2 SYSTEM FEATURES........................................................................................................8
2.3 SYSTEM FUNCTIONS......................................................................................................8
2.4 SPECIFICATIONS .........................................................................................................12
3. SYSTEM INSTALLATION................................ .....................................13
3.1. INSTALLATION OF MASTER UNIT........................................................................ 13
3.2. INSTALLATION OF REMOTE UNIT.......................................................................... 20
4. SYSTEM CONNECTION AND DEBUT ................................ .................21
4.1. MASTER UNIT .....................................................................................................21
4.2. REMOTE UNIT ...................................................................................................... 26
5. USER SAFETY INFORMAT ION................................ ............................. 27
5.1 SYSTEM GROUNDING WELL........................................................................................27
5.2 CONFIRMING POWER SUPPLY .....................................................................................27
Comba Telecom
RS- 5180CDMA800/1900 Dual Band Indoor Fiber Optic
Edition
2.0
Date
Repeater
2001-06 1 of 31
UPPORT WITH SUFFICIENT LOAD-BEARING CAPACITY
5.3 S
.............................................27
5.4 BE AWARE OF MECHANICAL DAMAGE.........................................................................27
5.5 PREVENTING LASER R ADIATION..................................................................................27
5.6 DOWNLINK SIGNAL LEVEL INPUT FROM BS +20DBM.............................................28
6. SERVICE MANUAL................................ ...............................................29
6.1 O UR PROMISES ...........................................................................................................29
6.2 CONTACT DETAILS....................................................................................................... 30
Comba Telecom
RS- 5180CDMA800/1900 Dual Band Indoor Fiber Optic
Edition
2.0
Date
Repeater
2001-06 2 of 31
1. System Introduction
1.1 System Application
RS -5180 CDMA800/1900 dual band indoor fiber-optic repeater combines signals from
CDMA800/1900 BTSs, then transmits them to Remote Units which are finally transmitted by
antenna so as to expand signal coverage area.
RS -5180 CDMA800/1900 dual band indoor fiber-optic repeater is applicable to the indoor
signal coverage at areas such as large scale office building, high-rise hotels, large department
stores, exhibition halls, underground buildings, tunnels, airport etc.. Its application is shown in
figure 1.1-1.
1.2 System Composition
Figure 1.1-1 Application of RS-5180
RS 5180 CDMA800/1900 dual band indoor fiber-optic repeater is composed of master unit
(RS-5180 -M) and Remote Unit (RS-5180 -R).
Comba Telecom
RS- 5180CDMA800/1900 Dual Band Indoor Fiber Optic
Edition
2.0
Date
Repeater
2001-06 3 of 31
1.2.1 Master Unit (RS-5180 -M)
Ø 1 Master UnitRS-5180-S
Ø 1~4 Interface UnitsRS-51 80-F. Quantity is determined by users.
Ø 1 power supply unitRS-5180-P
Ø A 19 "6U cabinet. The above units are inserted into the cabinet.
Ø Options:chosen by users according to their needs
Alarm Unit (inserted into19 "6U cabinet)
19 " portable frame800mm high Tail fiber tray Master unit cover
1.2.2 Remote Unit (RS-5180 -R)
A master unit can support up to16 Remote Units.
1.3 System Configuration
The Master Unit can be connected with at most 4 Interface Units. A Interface Unit can be
connected with 4 Remote Units. The whole system thus can be connected with 16 Remote Units
at most.
Each Remote Unit has 4 antenna ports. 16 Remote Units have 64 antenna ports. Each antenna
port can connect 2 antennas through a 2-way power splitters as needed. Therefore, the whole
system can connect up to128 antennas.
Comba Telecom
RS- 5180CDMA800/1900 Dual Band Indoor Fiber Optic
Edition
2.0
Date
Repeater
2001-06 4 of 31
1.4 System Appearance
1.4.1 Master Unit (RS-5180 -M)
The appearance of master unit is shown in figure 1.4-1. External dimensions (h×w×d) are 267
×
442×364 mm3.
All units are in plug-and-play cabinet structure. 6U cabinet and panels of all units are made of
aluminum alloy with the surface conduction and oxidation finished.
Figure 1.4-1 Appearance of Master Unit
Master Unit Interface Unit Alarm Unit
Power Supply Unit 6U Cabinet
RS- 5180CDMA800/1900 Dual Band Indoor Fiber Optic
Comba Telecom
Edition
2.0
Date
Repeater
2001-06 5 of 31
1.4.2 Remote Unit (RS-5180 -M)
The appearance of Remote Unit is shown in figure 1.4-2.
The cabinet is made of aluminum alloy with the surface conduction and oxidation finished.
External dimensions (h×w×d) are 368×220×60 mm3.
Figure 1.4-2 Appearance of Remote Unit
Comba Telecom
RS- 5180CDMA800/1900 Dual Band Indoor Fiber Optic
Edition
2.0
Date
Repeater
2001-06 6 of 31
2. Technical Explanations
2.1 System Composition
See figure 2.1 -1.
Figure 2.1-1 System Composition of RS-5180
Transmission of uplink and downlink signals: RF Master Unit receives the downlink signal from
the BTSs of CDMA800 and CDMA1900. After combines, they are then changed to optical
signals through the optical interface unit and transmitted to the Remote Unit through optical
fiber. After changed to RF signals through Remote Unit, they are finally transmitted to Mobile
handsets by antenna. Vice versa, the uplink signal from user mobile is received by antenna. The
RF signals is then changed to optical signal by Remote Unit and transmitted to the master unit
through optical fiber. The optical signal then is changed to RF signals by the optical interface
unit of the master unit. Finally, after the CDMA800 and CDMA1900 dual band signals are
Comba Telecom
RS- 5180CDMA800/1900 Dual Band Indoor Fiber Optic
Edition
2.0
Date
Repeater
2001-06 7 of 31
divided by the master unit, they are transmitted to CDMA800 and CDMA1900 BTSs.
2.2 System Features
n CDMA800/1900 dual band indoor optical fiber distribution coverage.
n Since optical fiber is the transmission media, it overcomes the drawbacks of indoor RF
routing difficulty and high loss.
n Plug and play system structure and flexible volume configuration can satisfy different
coverage requirements.
n Coverage end unit is small in size. Wall-hanging structure makes it easy to install,
flexible and concealed well, not affect indoor decoration and coverage area.
n Applicable to the indoor signal coverage of large -scale office buildings, high-rise hotels,
large-scale department stores, exhibition halls, underground buildings, tunnels and
airport.
n It has complete alarm function to monitor system working status. Alarm signal can be
sent to mobile network administration center through wire or wireless modem.
2.3 System Functions
2.3.1 Master Unit
Master Unit (RS-5180 -M)
Main functions of the Master Unit include the level adjustment of the transmission and
received signals of BTS and the distribution of Interface Units. Master Unit can adjust the
CDMA800 uplink or CDMA1900 uplink RF signal level in the range of ove r 30dB for GSM
with step of 2dB and over 25dB for 1800 with step of 1dB. The uplink attenuation adjustment
dip switches are on the front panel. ALC function is to control the downlink signal level to
ensure the normal operation of Master Unit with downlink input signal level in the range of
+ 5dBm ~ +20dBm.
Comba Telecom
RS- 5180CDMA800/1900 Dual Band Indoor Fiber Optic
Edition
2.0
Date
Repeater
2001-06 8 of 31
There are 4 downlink RF output ports and 4 uplink RF input ports on the front panel of the
Master Unit. Downlink and uplink are connected with 4 Interface Units through RF cable as
shown in figure 2.3-1.
Figure 2.3-1 Master Unit Panel Diagram
(1) Interface Unit (RS-5180-F)
Functions of Interface Unit include: uplink optical and electric conversion, showing the alarm
signal from Remote Unit and downlink optical dividing output.
1 Interface Unit has 4 couples of uplink optical input /downlink optical output ports to connect
with 4 Remote Units through optical fiber (figure 2.3-2).
Alarm function :
1. Each Interface Unit has a Optical Signal Transmitting Detection module. If no Optical
signals are sent, the red indicator on the panel will be on.
2. There is a Optical signal Receiving Detection module corresponding to each Remote Unit. If
no Optical signals are received, the correspondent will be off. When any Remote Unit or
Comba Telecom
RS- 5180CDMA800/1900 Dual Band Indoor Fiber Optic
Edition
2.0
Date
Repeater
2001-06 9 of 31
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