GST GRS-1923D-SPR User Manual
Sprint User Manual
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3G Indoor Repeater
GRS-1923D-SPR
User Manual
January, 2009
Version 0.1
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- INDEX -
1. SUMMARY................................................................................... 3
2. SYSTEM CONFIGURATION ......................................................... 4
2.1 GSR-1923D-SPR Service Organization ......................................................4
2.2 System Design and Operation....................................................................5
3. SPECIFICATIONS ..................................................................... 11
3.1 System Specifications(Applicable to both Uplink & Downlink)................11
3.2 Electrical and Environmental Specifications............................................12
3.3 Functions .................................................................................................12
4. SET UP...................................................................................... 15
4.1 System Set up..........................................................................................15
4.2 Troubleshooting....................................................................................... 19
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1. SUMMARY
GRS-1923D-SPR is an analog RF repeater, which improves PCS network.
GRS-1923D-SPR receives RF signal from BTS and transmits it to the blanked and shadowed
area, thus providing and improving voice and image data services. GRS-1923D-SPR’s goal is to
support BTS’s functions proportionately.
GRS-1923D-SPR communicates with BTS wirelessly, thus saving additional costs for its
maintenance.
GRS-1923D-SPR consists of RF/IF part module, Digital Filter module, and I/O & Control module
divisions, which are supplied with Alarm LED, thus providing quick and easy maintenance and
troubleshooting of the repeater.
This manual describes in general structure of GRS-1923D-SPR, its application, maintenance and
troubleshooting, installation and operation etc.
-.Caution: Any changes or modifications to this device not explicitly approved by manufacturer could void
your authority to operate this
equipment.
-.Warning: Exposure to Radio Frequency Radiation The radiated output power of this device is far below
the FCC radio frequency exposure limits. Nevertheless, the device should be used in such a manner that
the potential for human contact during normal operation is minimized.
In order to avoid the possibility of exceeding the FCC radio frequency exposure limits, human proximity
to the antenna should not be less than 20cm during normal operation. The gain of the
antenna for pcs Band must not exceed 12 dBi.
Abbreviation
PCS : Personal Communication System
RF: Radio Frequency
BTS: Base Transceiver Station
IF: Intermediate Frequency
I/O : Input/Output
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2. System Configuration
2.1 GRS-1923D-SPR Service Organization
GRS-1923D-SPR decreases blanked and shadowed areas and extends cell coverage by re-trans
mitting signal. The signal is received from BTS via Antenna directly, thus excluding additional ex
penses for signal transmission (like cabling). Service organization of CDMA In-building RF repeat
er is shown at the picture below. Donor Antenna is directed to BTS, and being divided at Servic
e Antennas are installed in the building and parking place. Pass Loss should be taken into consi
deration while dividing and cabling.
<Pic.1> US PCS 1900 Service Organization
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2.2 System Design and Operation
2.2.1 System Design
<Pic.2> GRS-1923D-SPR Repeater
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<Pic.3> Internal Design
NO DESCRIPTION
①
ANTENNA PORT
②
PSU MODULE (RS-35-3.3)
③
PSU MODULE (RS-100-9)
④
CONVERTER MODULE
⑤
AMP MODULE
⑥
NMS BOARD
⑦
DIGITAL FILTER
⑧
ETHERNET BOARD
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<Pic.4> Outside Port Design
NO DESCRIPTION
①
SERVER ANT PORT
②
DONOR ANT PORT
③
AC POWER PORT
④
CLI MONITOR PORT
⑤
ETHERNET PORT
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