GS Instech GRS-1924R-SPR RF Repeater User Manual ATT E
GS Instruments Co., Ltd. RF Repeater ATT E
user manual
FCC ID : U88-GRS-1924R-SPR ATTACHMENT E. - USER MANUAL - HCT CO., LTD. SAN 136-1, AMI-RI, BUBAL-EUP, ICHEON-SI, KYOUNGKI-DO, 467-701, KOREA TEL:+82 31 639 8517 FAX:+82 31 639 8525 www.hct.co.kr Report No. : HCTR1007FR29 1/1 Sprint User Manual 3G Indoor Repeater 3G Indoor Repeater GRS-1924R-SPR User Manual May, 2010 Version 0.1 1/20 Sprint User Manual 3G Indoor Repeater - INDEX 1. SUMMARY................................................................................... 3 2. SYSTEM CONFIGURATION ......................................................... 3 2.1 GRS-1924R-SPR Service Organization....................................................... 3 2.2 System Design and Operation.................................................................... 3 3. SPECIFICATIONS ....................................................................... 3 3.1 System Specifications(Applicable to both Uplink & Downlink).................. 3 3.2 Electrical and Environmental Specifications .............................................. 3 3.3 Functions ................................................................................................... 3 4. SET UP ........................................................................................ 3 4.1 System Set up ............................................................................................ 3 4.2 Troubleshooting......................................................................................... 3 2/20 Sprint User Manual 3G Indoor Repeater 1. SUMMARY GRS-1924R-SPR is an Digital RF repeater, which improves PCS network. GRS-1924R-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-1924R-SPR’s goal is to support BTS’s functions proportionately. GRS-1924R-SPR communicates with BTS wirelessly, thus saving additional costs for its maintenance. GRS-1924R-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-1924R-SPR, its application, maintenance and troubleshooting, installation and operation etc. Abbreviation PCS : Personal Communication System RF: Radio Frequency BTS: Base Transceiver Station IF: Intermediate Frequency I/O : Input/Output 3/20 Sprint User Manual 3G Indoor Repeater 2. System Configuration 2.1 GRS-1924R-SPR Service Organization GRS-1924R-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.US PCS 1900 Service Organization 4/20 Sprint User Manual 3G Indoor Repeater 2.2 System Design and Operation 2.2.1 System Design GRS-1924R-SPR Repeater 5/20 Sprint User Manual 3G Indoor Repeater Internal Design NO DESCRIPTION ① CAVITY FILTER - (Frequency Filtering) ② CONVERTER MODULE - (Frequency Conversion) ③ PSU MODULE(RS-100-9) - (Converter, LED, NMS Power Supply) ④ PSU MODULE(RS-35-12) - (EMB Power Supply) ⑤ I/O BOARD - (Input/Output Board) ⑥ NMS BOARD - (System Control Board) ⑦ DIGITAL FILTER - (Digital Filtering) ⑧ ETHERNET BOARD - (Web UI Board) 6/20 Sprint User Manual 3G Indoor Repeater ① ② ③ ⑦ ④ ⑤ ⑥ Outside Port Design NO DESCRIPTION ① DONOR ANT PORT ② SERVER ANT PORT ③ POWER SWITCH PORT ④ AC POWER PORT ⑤ CLI MONITOR PORT ⑥ ETHERNET PORT ⑦ DC POWER PORT 7/20 Sprint User Manual 3G Indoor Repeater 2.2.2 Downlink Path Downlink and Uplink Gain Budgets have similar structure. In case of Downlink Path, RF signal is received from Donor Antenna, and through FWD division, then the signal is transferred to IF division, where desirable Band is selected by Digital Filter. Selected Band is transferred to RF division again, and through FWD PAM, after that the signal is transmitted to User through Server Antenna. Two attenuators use for AGC compensation. AGC attenuation range is 40dB. Downlink Block Diagram 8/20 Sprint User Manual 3G Indoor Repeater 2.2.3 Uplink Path Uplink Path is similar in structure to Downlink Path. In case of Uplink Path, RF signal is received from Server Antenna, and through RVS division, then the signal is transferred to IF division, where desirable Band is selected by Digital Filter. Selected Band is transferred to RF division again, and through RVS PAM, after that the signal is transmitted to BTS through Donor Antenna. Two attenuators use for ALC compensation. ALC attenuation range is 40dB. Uplink Block Diagram 9/20 Sprint User Manual 3G Indoor Repeater 2.2.4 US PCS Frequency Selection 1930 1945 1950 1965 1970 1975 1990 1995 f (MHz) 1915 f (MHz) < Forward Band Structure > 1850 1865 1870 1885 1890 1895 1910 < Reverse Band Structure > 1900MHz PCS Band Structure GRS-1924R-SPR has 5MHz, 10MHz, 15MHz, 20MHz Paths in IF division, so any of these bandwid ths can be chosen for providing service. ITEM BANDWIDTH NOTE 5MHz 10MHz 15MHz Band Select 20MHz Any of these bandwidths from 5MHz + 5MHz A to G can be chosen 5MHz + 5MHz + 5MHz 10MHz + 5MHz 15MHz + 5MHz Also, by adding Channel Select Function, it enables users to select bands sophisticatedly. Each b and has 1.25MHz Bandwidth and if users select all the 15 bands, GRS-1924R-SPR can serve 18. 75MHz bandwidth to users. 10/20 Sprint User Manual 3G Indoor Repeater 3. SPECIFICATIONS 3.1 System Specifications(Applicable to both Uplink & Downlink) ITEM SPECIFICATION Transmit Power 24dBm ± 2.0dBm Frequency Downlink 1930MHz ~ 1995MHz Range Uplink 1850MHz ~ 1915MHz REMARK Gain Range 42dB ~ 82dB DL/UL both Roll Off ≥ 50dBc @ F(edge)±1MHz VSWR 1.5 : 1 Delay 8us In Band Spurious Emission Fc±885kHz Fc±1.98MHz OUT Band Spurious Emission Flatness Band Select Noise Figure ≥ 45dBc marker to marker 29dB ≥ -52dBc marker to marker 36dB < -13dBm 2.5dB 5MHz Non-contiguous Band 5+5MHz or 10MHz (Maximum 3-band) 5+5+5MHz or 10+5MHz or 15MHz Adding Channel Select 15+5MHz or 20MHz Function 5dB @ Max Gain 12dB @ Min Gain ALC Range 40dB, 1dB step Frequency Stability ±0.05ppm Waveform Quality Factor > 0.912 Output Power Variation over Temperature ±2.0dB 11/20 Sprint User Manual 3G Indoor Repeater 3.2 Electrical and Environmental Specifications ITEM SPECIFICATION Power & Consumption 100 ~ 240 VAC,60Hz Connector Type N-type female Size 289X385X180 Weight max 40 lbs Reliability, MTBF 100,000 hours Enclosure NEMA4 Operating Temperature -10℃ ~ +50℃ Rel. Humidity 0% ~ 90% REMARK TIA-97, TIA-98, IS-98D, Industry Standards IS-2000 Regulatory Approvals FCC, Part24 CDN-IC Safety Approvals UL1950 or Equiv 3.3 Functions ITEM Gain Control FUNCTIONS • Adjustable DL and UL Gain range 42~82dB • Display default Gain and current Gain function • It always operates in Downlink AGC ON status AGC (Auto Gain Control) • 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) • To limit output power as far as default range ALC (Auto Level Control) • 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 12/20 Sprint User Manual 3G Indoor Repeater • Shutdown when output power is higher than default level in Minimum Gain • Automatic Recovery Algorithm conversion after Shutdown status • Operate when User control (Only system initialize) • Decrease attenuator value for 3dB from minimum gain • In case of attenuator value is from 0dB to 3dB when AGS ended - AGC on (DL) - Gain balance on AGS (Auto Gain Setting) - PAM on - Shutdown on • In case of attenuator value is over 3dB when AGS ended - AGC off (ALC on) - Gain balance on - PAM on - Shutdown on • Downlink ATT is applied to Uplink during AGC state Gain Balance • Setting and maintenance of output level • Additional attenuation to ALC Level Band Select Power Monitoring Function DL Input control Automatic Recovery Security • To select either 5MHz/10MHz/15MHz/20MHz • Monitoring repeater’s output level • Monitoring Donor ANT input power of DL • When repeater is shutdown, it periodically recovers output power of repeater then monitors alarming • Support HTTPS for Web Browser security • User authentication through User ID and Password • Monitoring temperature of repeater Temperature Monitoring • Maximum and minimum set up is possible • Shutdown in over temperature • Automatic recovery after temperature becomes normal (Hysteresis 10 degree) 13/20 Sprint User Manual 3G Indoor Repeater VSWR Monitoring IP address report via E-mail • Monitoring VSWR of Donor ANT Port (Every one and half minute) • Reporting VSWR Alarm and Shutdown when the rate is 3.5:1 • 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 SNMP Agent • Remote and local user browser support through Web Browser • NMS report via SNMPv2 Trap • LED displays power and operation status on front side of repeater LED Display system • Input and Output signal levels are verified by LED bars 14/20 Sprint User Manual 3G Indoor Repeater 4. SET UP 4.1 System Set up 4.1.1 Constitution (Based on 1 set) PARAMETER ITEM QUANTITY Major Accessory US PCS 24dBm case 1 EA Main power input cable 1 EA Fixable screw 1 SET Mountable brackets 1 EA Manual 1 EA Additional Components User Manual 4.1.2 Notice 1) System Power check: Major electricity is AC110V, therefore please input electricity after power verification. 2) Input condition optimization: DL input condition is -58 ~ -18dBm. User should verify input condition of Donor ANT. 3) Isolation check between DONOR/SERVER ANT: Isolation condition of this equipment is 89dBc (Gain+7dB). User should check its condition before installation. MS 3100 A 10SL-3 (Wall Mount Receptacle) & MS3010 A 10SL-3(Plug) 15/20 Sprint User Manual 3G Indoor Repeater 4.1.3 System Set up 1) This equipment is basically wall mountable installation. 2) Once aforementioned process is done, open for service get ready. 3) For grounding, there is a grounding terminal in main power supply side and the grounding terminal on a site and unit should be connected same. 4) System installation work is basically performed more than two people and should be careful for unexpected accident. 5) The socket-outlet shall be installed near the equipment and shall be easily accessible. 6) Round terminals located on the side of a 0.75 mm2 (18 AWG) or more wires Using permanently connected to earth. Case Mounts - Step 1 16/20 Sprint User Manual 3G Indoor Repeater Case Mounts - Step 2 4.1.4 Open for Service 1) Check points before open a. Verification of system installation status - Electricity, In/out antenna, coaxial cable connection, equipment mounts status. b. Verification of system accessories - User should check whole necessary accessories. c. Check receipt signal level - User should check whether receipt environmental condition is in accordance with system specification, so that system operation will be optimized. 2) Check points after open a. Check by external LED ① RUN: Green light ON (Off: Green light off) 17/20 Sprint User Manual 3G Indoor Repeater ② ALARM: Green light in normal status, Red light in alarming ③ SHUT DOWN: Green light in normal status, Red light in Shutdown status ④ Number of LED bar on front side of repeater will show input power signal level Less than -86dBm: LED 1 bar -85dBm ~ -70dBm: LED 2 bar -69dBm ~ -54dBm: LED 3 bar -53dBm ~ -41dBm: LED 4 bar More than -40dBm: LED 5 bar ⑤ Number of LED bar on front side of repeater will show output power signal level Less than +5dBm: LED 1 bar +6dBm ~ +10dBm: LED 2 bar +11dBm ~ +15dBm: LED 3 bar +16dBm ~ +20dBm: LED 4 bar More than +21dBm: LED 5 bar 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 18/20 Sprint User Manual 3G Indoor Repeater - 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 4.2 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 1) RF Power Meter: 10Watt Max, 50ohm 2) Signal Generator: 3GHz 3) Spectrum Analyzer: 3GHz 4) Multi-Meter 4.2.2 Notice 1) Troubleshooting should be performed by a trained technician. 2) Parts that seem to be not used should not be disassembled. 3) While troubleshooting, technician should use attenuator to check RF Signal output. 4.2.3 Simple Troubleshooting Method 1) Verify LED Status, both on external LED’s as well as internal module LED’s - Normal operation: Green light on. Alarming: Red LED on. 2) Technician should check external and internal connectors to ensure that all connections are tightly secure. These connectors should be cleaned regularly. 3) 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) 19/20 Sprint User Manual 3G Indoor Repeater 4.2.4 Troubleshooting Guide Item Check Point System input power range System gain Check before Output power at server system port operation Troubleshooting -Downlink: -58dBm ~ -18dBm -Uplink: -58dBm ~ -18dBm -Downlink: 42dB ~ 82dB -Uplink: 42dB ~ 82dB -Downlink: 24dBm ± 2dB -Uplink: 24dBm ± 2dB -Please check quantity of all accessories with Check points before open for service specification before you set up -Fit cable length in accordance with field condition -Set up 1900MHz CDMA Donor antenna to secure Isolation. (More than 89dBc) Check following status; -Verify that the antennas are securely mounted and pointed in the correct directions Check after system operation -Connection status between antennas and RF cable Check points after open for service -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 4.2.5 Troubleshooting Guide Related to RF Symptom Check Point Troubleshooting When repeater does not work Check electricity cord connection status -Re-plug in Adapter cord properly 20/20 Sprint User Manual 3G Indoor Repeater Please Check following status; DL VSWR alarm -Make sure Server Antenna Port is disconnected. -Please reset Adapter upon completing Alarm troubleshooting -Make sure output power is operating normally DL over-output alarm -Please Reset Adapter upon completing Alarm troubleshooting -Please make sure output level is operating normally When in UL over-output alarm -Please reset Adapter upon completing Alarm troubleshooting alarming Check following status; -Setting level of maximum temperature limit Temperature alarm -Temperature offset is normal or not -Circumstances of temperature -Please Reset Adapter upon completing Alarm troubleshooting -Verify that the HPA’s are On RF off -Please Reset Adapter upon completing Alarm troubleshooting When output Technician should verify -When Red light on the Shutdown LED, technician power is no category of alarm at the should longer front side of repeater problem -Technician should connect antenna with output port of repeater -Please make sure all troubleshoot the alarm via Notebook computer -Reconnect the connector -Change it if the connector is defective connectors are fastened Check the input level Check gain of the unit -Increase output power or check input change of BTS side -If the Gain is different from normal level, please contact A/S team 21/20 Sprint User Manual 3G Indoor Repeater -It is possible for connectors to get too tight and Cable connector loose damage the equipment or throughput -Please contact installer or service provider upon verification Check input signal strength in the service In case of dropped call or bad signal after set up area -Increase output power level of repeater by adjusting attenuation level If input signal strength is not a problem, please -Increase output level of Uplink signal, then set to check delay of calling optimal level. time Check RSSI signal strength -Contact network management team or service provider Check connection fastened between antenna and cable In case (Signal wavelength output Signal should be flat and stable wavelength is if technicians shake not shown CABLE. If not, it is flat or looks connection problem) like oscillation Input level change or module overheating Please check VSWR of the cable is normal -If connection is not proper, reconnect cable and connector and then check the output power again -Check input level from BTS side. -Check performance of each module (Diagnosed by A/S team) -Change to normal Cable 22/20 Sprint User Manual 3G Indoor Repeater 4.2.6 Troubleshooting Guide Related to NMS Symptom Check Points Troubleshooting -In case of Ethernet, verify IP addressing, DHCP Communication problem function, and that cookies are deleted -Verify that a crossover Ethernet cable is being used Link Fail CLI connection, cable status check CLI connection Check by USB to serial cable -Make sure 1:1 connection -Follow instructions in the installation guide for this connection procedure -Please verify port number of PC communication -Please check cable connection status 23/20 MPE Information 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 is 2 dBi. The antenna(s) used for this transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. ⓒ SAMSUNG Electronics Co., Ltd.
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