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Troubleshooting
Related Manuals for GST GRS-1915D-SPR
Summary of Contents for GST GRS-1915D-SPR
- Page 1 3G Indoor Repeater GRS-1915D-SPR User Manual January, 2009 Version 0.1...
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Page 2: Table Of Contents
Sprint User Manual 3G Indoor Repeater - 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 .............. -
Page 3: Summary
Sprint User Manual 3G Indoor Repeater 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. - Page 4 Sprint User Manual 3G Indoor Repeater 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.
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Page 5: System Configuration
Sprint User Manual 3G Indoor Repeater 2. System Configuration 2.1 3G Indoor Repeater Service Network Configuration <Pic.1> 3G Indoor In-building Repeater Service Organization... -
Page 6: System Design And Operation
Sprint User Manual 3G Indoor Repeater 2.2 System Design and Operation 2.2.1 System Design <Pic.2> GRS-1915D-SPR repeater... - Page 7 Sprint User Manual 3G Indoor Repeater <Pic.3> Internal Design Part Module Control Board Ethernet Board...
- Page 8 Sprint User Manual 3G Indoor Repeater <Pic.4> Outside Port Design PORT Server Antenna Port Donor Antenna Port DC Power Port CLI Monitor Port Ethernet Port Grounding port...
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Page 9: Downlink/Uplink Path
3G Indoor Repeater 2.2.2 Downlink/ Uplink Path GRS-1915D-SPR improves and strengthens signals in PCS 1900MHz band. In downlink path, received from Donor Antenna signal is transferred through Duplexer (DPX) and Down Conversion (DNC) module, and after choosing one of 5MHz, 10MHz or 15MHz in IF path the signal is forwarded to Up Conversion (UPC) module. -
Page 10: Frequency Selection
Sprint User Manual 3G Indoor Repeater 2.2.3 Frequency Selection 1930 1935 1940 1945 1950 1955 1960 1965 1970 1975 Downlink Frequency Table 1850 1855 1860 1865 1870 1875 1880 1885 1890 1895 Uplink Frequency Table <Pic.6 > 1900MHz Band Structure PCS 1900 repeater has 5MHz, 10MHz, 15MHz Paths in IF division, so any of these bandwidths can be selected for providing service. -
Page 11: Specifications
Sprint User Manual 3G Indoor Repeater 3. SPECIFICATIONS 3.1 System Capacity Item Specification Remark Downlink 1930MHz ~ 1975MHz 45MHz Freq. Uplink 1850MHz ~ 1895MHz 45MHz Donor CDMA Tx / Rx Port Server CDMA Tx / Rx Capacity OMNI 5MHz, 10MHz Channel Capacity Only continuous 15MHz... -
Page 12: System Specifications
Sprint User Manual 3G Indoor Repeater 3.2 System Specifications Parameter Specification Remark Range 52dB ~ 72dB Gain Adjust Step ±1.0dB Adjust Accuracy ±0.5dB Propagation ＜ 5.0us Delay ＜ -45dBc F0±885kHz ∆marker: 29dB Spurious Emission ＜ -55dBc F0±1.98MHz ∆marker: 39dB ＜ -13dBm Out Band Spurious Emission RBW: 30MHz ＜... -
Page 13: Functions
Sprint User Manual 3G Indoor Repeater 3.4 Functions Parameter Specification • Adjustable DL and UL Gain range 52~72dB Gain Control • Display default Gain and current Gain function A G S O N D L P A M O F F U L P A M O F F S H U T D O W N O F F D L A T T 2 0 d B... - Page 14 Sprint User Manual 3G Indoor Repeater Power Monitoring • Monitoring repeater’s output level Function DL Input control • Monitoring Donor ANT input power of DL Automatic • When repeater is shutdown, it periodically recovers output power of repeater then monitors Recovery alarming •...
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Page 15: Setup
Sprint User Manual 3G Indoor Repeater 4. SETUP 4.1. Equipment Needed for GRS-1915D-SPR Repeater Setup Parameter Item Quantity Remark Major Component GRS-1915D-SPR 1 EA Provided by GST CD which contains User Manual 1 EA V0.1 and Installation Guide V0.1 Ethernet Cable 6.6ft... -
Page 16: System Setup
Sprint User Manual 3G Indoor Repeater 4.1.2 System Setup 1) This equipment is basically wall mountable. 2) Installer will have to connect the power supply (after verifying the input power) and RF cable to the Repeater and then it will be ready to use. 3) For grounding, there is a grounding terminal in main power supply which will be plugged into power outlet. -
Page 17: Open For Service
Sprint User Manual 3G Indoor Repeater 4.1.3 Open for Service 1) Check points before open: a. Verification of system installation status: - Electricity, In/Out antennas, cable connection, and equipment mount status. b. Verification of system accessories: - User should check all necessary accessories. c. - Page 18 Sprint User Manual 3G Indoor Repeater <Pic.7> Front LED b. Verification of operation status User should verify following status with Output monitoring terminal, which is provided by Spectrum Analyzer: - Output power generation status, system spurious emission characteristics. c. Verification of signal quality and strength in service area User should verify signal strength and quality of in-service coverage area by using cell phone or other measuring device.
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Page 19: Necessary Testing And Measuring Equipment
In most cases of major repairs, GST will simply replace the unit and conduct repairs at the appropriate facility. 4.2.1 Necessary Testing and Measuring Equipment a. -
Page 20: Troubleshooting Guide
Sprint User Manual 3G Indoor Repeater 4.2.4 Troubleshooting Guide Item Check Point Trouble shooting Input Level Note before Downlink -57dBm/Total ~ -37dBm/Total * System Input power range system Uplink -57dBm/Total ~ -37dBm/Total operation Note Gain before * System Gain system Downlink 52 ~ 72dB operation... -
Page 21: Troubleshooting Guide Related To Rf
Sprint User Manual 3G Indoor Repeater 4.2.5 Troubleshooting Guide Related to RF Symptom Check Point Troubleshooting When repeater * Check Electricity Cord does not work * Re-plug in Adapter cord connection status properly * Please Check following status - Proper maximum output power limit level - BTS input level (Spectrum Level) When in * DL over-input alarm... - Page 22 Sprint User Manual 3G Indoor Repeater * Technician should connect When output antenna with output port of * Reconnect the connector. power is no repeater. * Change it if the connector is defective. longer problem * Please make sure all connectors are fastened When output power is no...
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Page 23: Troubleshooting Guide Related To Nms
Sprint User Manual 3G Indoor Repeater In case Output * Check connection fastened Signal between antenna and cable wavelength is (Signal wavelength should be * If connection is not proper, reconnect cable and connector not shown flat flat and stable if technicians and then check the output power again.
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