GS Instech GRS-1915DC-SPR Repeater User Manual GRS 1915D SPR Manual 09 01 30

GS Instruments Co., Ltd. Repeater GRS 1915D SPR Manual 09 01 30

Users Manual

3G Indoor Repeater GRS-1915D-SPR User Manual January, 2009Version 0.1
Sprint User Manual 3G Indoor Repeater 2- 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
Sprint User Manual 3G Indoor Repeater 31. 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.
Sprint User Manual 3G Indoor Repeater 4Characteristics 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.
Sprint User Manual 3G Indoor Repeater 52. System Configuration 2.1 3G Indoor Repeater Service Network Configuration <Pic.1> 3G Indoor In-building Repeater Service Organization
Sprint User Manual 3G Indoor Repeater 62.2 System Design and Operation 2.2.1 System Design <Pic.2> GRS-1915D-SPR repeater
Sprint User Manual 3G Indoor Repeater 7 <Pic.3> Internal Design No Part 1 Module 2 Control Board 3 Ethernet Board
Sprint User Manual 3G Indoor Repeater 8 <Pic.4> Outside Port Design NO. PORT 1 Server Antenna Port 2 Donor Antenna Port 3 DC Power Port 4 CLI Monitor Port 5 Ethernet Port 6 Grounding port
Sprint User Manual 3G Indoor Repeater 92.2.2 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. Then, improved signal is sent to Service Antenna through Diplexer (DPX). Uplink path is vice versa to Downlink path. <Pic.5> Block Diagram
Sprint User Manual 3G Indoor Repeater 10A1 A2 A3 DB1 B2 B3 E F1930 1935 1940 1945 1950 1955 1960 1965 1970 1975MHzA1 A2 A3 DB1 B2 B3 E F1850 1855 1860 1865 1870 1875 1880 1885 1890 1895MHz 2.2.3 Frequency Selection Downlink Frequency Table 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. 5MHz, 10MHz, 15MHz are only continious bands. But there are some cases when this choice is not applicable: - Not continuous 3 Paths [5 MHz each], so total band is 15MHz Ex) A1, D, E - Not continuous 3 Paths [5 MHz each], so total band is 10MHz Ex) A1, D - Not continuous 3 Paths [5 MHz and 10M ], so total band is 15MHz Ex) A1,A2,E
Sprint User Manual 3G Indoor Repeater 11 3. SPECIFICATIONS 3.1 System Capacity Item Specification Remark Downlink 1930MHz ~ 1975MHz 45MHz Freq. Uplink 1850MHz ~ 1895MHz 45MHz Donor CDMA Tx / Rx DPX Port Server CDMA Tx / Rx DPX Capacity OMNI Channel Capacity 5MHz, 10MHz 15MHz Only continuous Output Power +15dBm / Total
Sprint User Manual 3G Indoor Repeater 123.2 System Specifications Parameter Specification Remark Range 52dB ~ 72dB Adjust Step ±1.0dB Gain Adjust Accuracy ±0.5dB Propagation Delay ＜ 5.0us F0±885kHz ＜ -45dBc ∆marker: 29dB Spurious Emission F0±1.98MHz ＜ -55dBc ∆marker: 39dB Out Band Spurious Emission ＜ -13dBm RBW: 30MHz Flatness ＜ 3dB Return Loss / VSWR ＜ 1.5 : 1 Uplink Noise Figure ＜ 5dB @ Max gain ＜ 12dB @ Min gain Roll off ±1.0MHz ＞ 50dBc Test frequency measured from band edge Characteristic Impedance 50Ω 3.3 Electrical and Environmental Specifications Item Specification Remark RF Connector N-Type Female Donor & Server ANT Port AC Supply Input : 100-240VAC 50/60Hz 1.2A Output : +12V / 3.5A AC/DC Adapter Out Dimension 9.45(L)*8.27(W)*4.92(H) Unit : inch Net Weight ＜5 kgs Module AL6063S-T5 Material Cabinet AL5052P Operation Temperature -10℃ ~ +50℃ Convection cooling Humidity 5% ~ 95% Non-condensing Dust Resistance TELCORDIA GR63-CORE
Sprint User Manual 3G Indoor Repeater 133.4 Functions Parameter Specification Gain Control • Adjustable DL and UL Gain range 52~72dB • Display default Gain and current Gain function AGS Auto Gain Setting OUTPUT LEVEL≥ 15dBmDL PAM OFFUL PAM OFFSHUTDOWN OFFDL ATT 20dBUL ATT 20dBOSCILLATION ALARM ON D L PAM O NOUTPUT LEVEL≥ 발 진 LevelAGS ONALC MODEAGS 종료OSCILLATION ALARM & SH U TDOW NISO L ATIO N C H E C KATT 0dBOUTPUT LEVEL≥ 발 진 LEVELATT 1dB 감 소ATT > 0 dBISOLAT IO N C HECKATT 7dBAGC MODEATT 값 설정ISO L ATIO N C H E C KATT 7dBATT > 3dB ALC MODEAGC MODEAGS 종료AGS 종료AGS 종료AGS 종료OSCILLATION ALARM OFFOSCILLATION ALARM OFFOSCILLATION ALARM OFFOSCILLATION ALARM OFFYNYNYNYNYN AGC Auto Gain Control • It always operates in Downlink AGC ON status • To maintain same Downlink output power despite flexible input signal strength. • To add or subtract Attenuation level referring to AGC Power Limit level. • Used with the Automatic Setup (Auto Gain Setting) ALC Auto Limit Control • To limit output power as far as default range • Used for DAS configuration and when oscillation/isolation is a concern • Automatic Gain decrement when output power of repeater is higher than default level • Automatic Gain recovery when output power of repeater is reduced. • Shutdown when output power is higher than default level in Minimum Gain • Automatic Recovery Algorithm conversion after Shutdown status Band Select • To select either 5MHz/10MHz/15MHz
Sprint User Manual 3G Indoor Repeater 14 Power Monitoring Function • Monitoring repeater’s output level DL Input control • Monitoring Donor ANT input power of DL Automatic Recovery • When repeater is shutdown, it periodically recovers output power of repeater then monitors alarming Security • Support HTTPS for Web Browser security • User authentication through User ID and Password Temperature Control • Monitoring temperature of repeater • Maximum and minimum set up is possible. Shutdown in over temperature • Automatic recovery after temperature becomes normal. (Hysteresis 10degree) IP address report via E-mail • When in PPP reconnection, E-mail which includes HTML to connect to newly assigned IP Address, reports to operator. DHCP Client • Automatic IP assignment DHCP Server • Server function for automatic IP assignment Web GUI • Remote and local user browser support through Web Browser SNMP Agent • NMS report via SNMPv2 Trap LED Display • LED displays power and operation status on front side of repeater system. • Input and Output signal levels are verified by LED bars.
Sprint User Manual 3G Indoor Repeater 154. 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 Additional Components CD which contains User Manual V0.1 and Installation Guide V0.1 Ethernet Cable 6.6ft AC/DC Adapter Ground Cable 6.6ft Anchor Bolt (¼" X ½") Hex Lag Screw (¼" X 1½") 1 EA 1 EA 1 EA 1 EA 4 EA 4 EA Provided by GST Antenna Donor ANT Server ANT 1 EA 1 EA Not Included RF Cable Antenna connection Cable TBD Not Included Testing and Measuring Equipment Spectrum Analyzer 1 EA Not Included 4.1.1 Checkpoints before turning on the Repeater 1) System Power Check: DC electrical power to the repeater should be 12V, input electricity only after power verification. 2) Input RF Signal Range: Optimal input RSSI into the repeater is -57dBm ~ -37dBm for 1900MHz CDMA. User should verify input condition of Donor ANT. 3) Isolation check between DONOR/SERVER ANT: Isolation condition of this equipment is 79dBc (Gain+7dB) for CDMA. User should check its condition before installation. .
Sprint User Manual 3G Indoor Repeater 164.1.2 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. There is also a separate grounding terminal on the repeater which should be connected to the on-site grounding terminal to ensure proper grounding. 4) Mounting of repeater should be done by at least two technicians to ensure a safe and proper installation.
Sprint User Manual 3G Indoor Repeater 174.1.3 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. Check receipt signal level - Installer should check whether environmental conditions are in accordance with system specification to ensure that system operation will be optimized. 2) Check points after open: a. Check external LED 1) RUN: Green light ON (Off: all lights off) 2) ALARM: Green light in normal status, Red light in alarming 3) SHUT DOWN: Green light in normal status, Red light in Shutdown status Display LED level bar Number of LED bars on front side of repeater will show input signal level. Less than ~ -85dBm: LED 1bar -84dBm~-70dBm: LED 2 bars -69dBm~-54dBm: LED 3 bars -53dBm~-41dBm: LED 4 bars More than -40dBm: LED 5 bars Number of LED bar on front side of repeater will show output power signal level. Less than ~ 7dBm: LED 1bar +8dBm~+9dBm: LED 2bars +10dBm~+11dBm: LED 3bars +12dBm~+13dBm: LED 4bars More than +14dBm: LED 5bars
Sprint User Manual 3G Indoor Repeater 18 <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. d. Verification of upper-level NMS operation status
Sprint User Manual 3G Indoor Repeater 194.2 Troubleshooting In case of abnormal operation, technician should diagnose abnormality via remote access or directly connecting to repeater using Ethernet cable. If technician is required to conduct repairs due to major alarm, repeater should first be powered off, and then technician should prepare the proper measurement equipment before trying to fix the problem. 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. RF Power Meter: 10Watt Max, 50ohm b. Signal Generator: 3GHz c. Spectrum Analyzer: 3GHz d. Multi-Meter 4.2.2 Notice a. Troubleshooting should be performed by a trained technician. b. Parts that seem to be not used should not be disassembled. c. While troubleshooting, technician should use attenuator to check RF Signal output. 4.2.3 Simple Troubleshooting Method a. Verify LED Status, both on external LED’s as well as internal module LED’s - Normal operation: Green light On. Alarming: Red LED on b. Technician should check external and internal connectors to ensure that all connections are tightly secure. These connectors should be cleaned regularly. c. If technician thinks there is a serious problem, call after sales team for over-the-phone technical support. 1-866-9-GST-USA (1-866-947-8872)
Sprint User Manual 3G Indoor Repeater 204.2.4 Troubleshooting Guide Item Check Point Trouble shooting Note before system operation * System Input power range Input Level Downlink -57dBm/Total ~ -37dBm/TotalUplink -57dBm/Total ~ -37dBm/Total Note before system operation * System Gain Gain Downlink 52 ~ 72dB Uplink 52 ~ 72dB Note before system operation * Output power at Server port Output power Downlink 15dBm/Total Uplink 15dBm/Total Check in Advance * Check points before open for service * Please check quantity of all accessories with specification before you set up. * Fit cable length in accordance with field condition. * Set up 1900MHz CDMA Donor antenna to secure Isolation (More than 79dBc) Check after open * Check points after open for service * Check following status - Verify that the antennas are securely mounted and pointed in the correct directions - Connection status between antennas and RF cable - Verify that the Repeater is securely mounted - Proper AC power status - Grounding status of electrical circuit - Coaxial cable (RF) construction status - Connectors and combiners connection status - Cable connection status against leakage of water
Sprint User Manual 3G Indoor Repeater 214.2.5 Troubleshooting Guide Related to RF Symptom Check Point Troubleshooting When repeater does not work properly * Check Electricity Cord connection status * Re-plug in Adapter cord When in alarming * DL over-input alarm * Please Check following status - Proper maximum output power limit level - BTS input level (Spectrum Level) - Input RSSI value on Status Page - Downlink Attenuation level * Please reset Adapter upon completing Alarm troubleshooting When in alarming * DL over-output alarm * Make sure output power is operating normally. * Reset Adapter upon completing Alarm troubleshooting. When in alarming * UL over-output alarm * Please make sure output level is operating normally * Please reset Adapter upon completing Alarm troubleshooting When in alarming * Temperature alarm * Check following status: - Setting level of maximum temperature limit - Temperature offset is normal or not. - Circumstances of temperature. * Reset Adapter upon completing Alarm troubleshooting When in alarming * RF OFF * Verify that the HPA’s are On. * Reset Adapter upon completing Alarm troubleshooting When output power is no longer problem * Technician should verify category of alarm at the front side of repeater. * When Red light on the Shutdown LED, technician should troubleshoot the alarm via Notebook computer.
Sprint User Manual 3G Indoor Repeater 22When output power is no longer problem * Technician should connect antenna with output port of repeater. * Please make sure all connectors are fastened * Reconnect the connector. * Change it if the connector is defective. When output power is no longer problem * Check the input level * Increase output power or check input change of BTS side. When output power is no longer problem * Check Gain of the unit * If the Gain is different from normal level, please contact A/S team. When output power is no longer problem * Cable connector loose. * It is possible for connectors to get too tight and damage the equipment or throughput. * Please contact installer or service provider upon verification. In case of dropped call or bad signal after set up * Check input signal strength in the service area * Increase output power level of repeater by adjusting attenuation level. In case of drop call or bad signal after set up * If input signal strength is not a problem, please check delay of calling time. * Increase output level of Uplink signal, then set to optimal level. In case of dropped call or bad signal after setup * Check RSSI signal strength * Contact network management team or service provider
Sprint User Manual 3G Indoor Repeater 23In case Output Signal wavelength is not shown flat or looks like oscillation * Check connection fastened between antenna and cable (Signal wavelength should be flat and stable if technicians shake CABLE. If not, it is connection problem.) * If connection is not proper, reconnect cable and connector and then check the output power again. Same as above * Input level change or module overheating. * Check input level from BTS side. * Check performance of each module. (Diagnosed by A/S team.) Same as above * Please check VSWR of the Cable is normal. * Change to normal Cable. 4.2.6 Troubleshooting Guide Related to NMS Symptom Check Points Troubleshooting Link Fail * Communication problem * In case of Ethernet, verify IP addressing, DHCP function, and that Cookies are deleted. * Verify that a crossover Ethernet cable is being used. Link Fail * CLI Connection, Cable status check * Make sure 1:1 connection. * Follow instructions in the installation guide for this connection procedure. Link Fail * CLI connection Check by USB to Serial Cable * Please verify Port number of PC communication. * Please check Cable connection status.

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