GST GRS-1915D-SPR User Manual
3G Indoor Repeater
GRS-1915D-SPR
User Manual
January, 2009
Version 0.1
Sprint User Manual
3G Indoor Repeater
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- INDEX -
1. SUMMARY................................................................................... 3
2. SYSTEM CONFIGURATION ......................................................... 5
2.1 3G Indoor Repeater Service Network Configuration............... 5
2.2 System Design and Operation.................................................. 6
2.2.1 System Design........................................................................... 6
2.2.2 Downlink/Uplink Path ................................................................. 9
2.2.3 Frequency Selection................................................................. 10
3. SPECIFICATIONS ..................................................................... 11
3.1 System Capacity..................................................................... 11
3.2 System Specifications ............................................................ 12
3.3 Electrical and Environmental Specifications.......................... 12
3.4 Functions................................................................................ 13
4. SETUP....................................................................................... 15
4.1. Equipment Needed for 3G Indoor Repeater Setup ............... 15
4.1.1 Checkpoints before turning on the Repeater .............................. 15
4.1.2 System Setup .......................................................................... 16
4.1.3 Open for Service...................................................................... 17
4.2.1 Necessary Testing and Measuring Equipment ............................. 19
4.2.2 Notice..................................................................................... 19
4.2.3 Simple Troubleshooting Method ................................................ 19
4.2.4 Troubleshooting Guide ............................................................. 20
4.2.5 Troubleshooting Guide Related to RF......................................... 21
4.2.6 Troubleshooting Guide Related to NMS ...................................... 23
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1. Summary
GRS-1915D-SPR is a 3G Indoor repeater, which has been designed to improve signals in
blanket/shadow areas inside of buildings to transmit Sprint signals at PCS 1900MHz band.
Characteristics
PCS Band: 72dB Gain with 15dBm maximum composite output power.
Bandwidth: Entire PCS 1900 frequency A Block to F Block (45MHz). Bandwidth selection
adjustable per user’s situation.
- 5MHz, 10MHz, 15MHz Blocks
- Three continuous 5MHz, 10MHz, 15MHz block combinations ( only continuous )
- See page 10 for more details.
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Characteristics
GRS-1915D-SPR repeater is an indoor repeater with output power of 15dBm. Functional
modules are classified as below:
- DPX Filters to combine the input/output signals for: CDMA
- Body (the whole module
)
- AC/DC Adapter
- Controller to monitor each module in repeater.
Abbreviation
PAM: POWER AMPLIFIER MODULE
LNA: LOW NOISE AMPLIFIER
AGC: AUTO GAIN CONTROL
ALC: AUTO LIMIT CONTROL
Caution: Risk of explosion if battery on the controller board is replaced by an
incorrect type.
-.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.
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2. System Configuration
2.1 3G Indoor Repeater Service Network Configuration
<Pic.1> 3G Indoor In-building Repeater Service Organization
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2.2 System Design and Operation
2.2.1 System Design
<Pic.2> GRS-1915D-SPR repeater
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<Pic.3> Internal Design
No Part
1 Module
2 Control Board
3 Ethernet Board
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