GS Instech GRS-825DM-BC Repeater User Manual
GS Instruments Co., Ltd. Repeater Users Manual
Users Manual
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| Date Submitted | 2009-04-29 00:00:00 |
| Date Available | 2009-06-13 00:00:00 |
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FCC ID : U88-GRS-825DM-BC 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. : HCT-RF09-0416 1/1 GRS-825DM-BC RF Repeater User Manual January, 2009 Version 1.0 Bell Mobility User Manual In-building Repeater - INDEX 1. SUMMARY .................................................................................................................3 2. SYSTEM CONFIGURATION .....................................................................................5 2.1 In-buildingRepeater Service Network Configuration.......................................................... 5 2.2 System Design and Operation ............................................................................................. 6 2.2.1 System Design .............................................................................................................................................. 6 2.2.2 Downlink/ Uplink Path ................................................................................................................................. 8 2.2.3 Frequency Selection..................................................................................................................................... 9 3. SPECIFICATIONS...................................................................................................10 3.1 System Capacity ................................................................................................................ 10 3.2 System Specifications........................................................................................................ 11 3.3 Electrical and Environmental Specifications ..................................................................... 12 3.4 Functions ........................................................................................................................... 13 4. SETUP ......................................................................................................................15 5. IC INFORMATION..................................................................................................25 Bell Mobility User Manual In-building Repeater 1. Summary GRS-825DM-BC is a In-building repeater, which has been designed to improve signals in blanket/shadow areas inside of buildings to transmit Bell Mobility’s signals at nd 800MHz frequencies. Characteristics 800MHz Band: 80dB Gain with 25dBm maximum composite output power. Bandwidth: Downlink 880MHz~894MHz, Uplink 835MHz~849MHz (14MHz Band) See page 11 for more details. Bell Mobility User Manual In-building Repeater Characteristics GST’s In-buildingrepeater is basically a combination of 800MHz 25dBm repeaters. Functional modules are classified as below: Cavity Filters to combine the Duplex input/output signals for: 800MHz. LNA (Low Noise Amplifier) Gain Block to transmit output signal to PAM (Power Amplifier Module) Cavity Filter Converter Modules PAM Module to amplify output power linearly in accordance with optimal repeater output power. Power Supply Unit 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. - Statement indicating that the socket-outlet shall be installed near the equipment and shall be easily accessible. - This equipment is indoor use and all thecommunication wirings are limited to inside of the building. Bell Mobility User Manual In-building Repeater 2. System Configuration 2.1 In-building Repeater Service Network ConfigurationIn-building Repeater Service Organization Bell Mobility User Manual In-building Repeater 2.2 System Design and Operation 2.2.1 System Design In-building Repeater Internal Design Bell Mobility User Manual In-building Repeater > In-building Repeater Port Design Bell Mobility User Manual In-building Repeater 2.2.2 Downlink/ Uplink Path In-building RF Repeater simutaneously operates at 800MHz frequencies and has one Donor ANT Port for aiming at each BTS, and one Server Port for the In-building coverage. Therefore the Cavity Filters applied to the Front End of Donor ANT Port and Server ANT Port consists of DPX, has DPX which multiplexes all Tx/Rx into one path. In-buildingIn-building Repeater Block Diagram Bell Mobility User Manual In-building Repeater 2.2.3 800MHz Frequency Selection Lower B (5MHz) 880 Upper B (5MHz) 885 Blank 890 B’ 891.5 894 MHz 849 MHz 800MHz Downlink Frequency Table Lower B (5MHz) 835 Upper B (5MHz) 840 Blank 845 846.6 B’ 800MHz Uplink Frequency Table 800MHz Band Structure 800MHz Band Select Table Configuration B (10MHz) Lower B (5MHz) Upper B (5MHz) B’ (2.5MHz) Bell Mobility User Manual In-building Repeater 3. SPECIFICATIONS 3.1 System Capacity Item Frequency Specification Remark DOWNLINK 880MHz ~ 894MHz 14MHz UPLINK 835MHz ~ 849MHz 14MHz Donor Tx / Rx DPX Server Tx / Rx DPX Port Capacity OMNI Bandwidth 14MHz Output Power +25dBm / 316mW (ANT Port) Total 10 Bell Mobility User Manual In-building Repeater 3.2 System Specifications Parameter Specification Remark Range DL: 880~894MHz UL: 835~849MHz DL: 880 ~ 890MHz UL: 835 ~ 845MHz DL: 891.5 ~ 894MHz UL: 846.5 ~ 849MHz DL: 880 ~ 885MHz UL: 835 ~ 840MHz Or DL: 885 ~ 890MHz UL: 840 ~ 845MHz 50dB ~ 80dB Adjust Step ±1.0dB Adjust Accuracy ±0.5dB 800MHz ＜ 6.0us F0±750kHz ＜ -45dBc ∆marker: 29dB F0±1.98MHz ＜ -50dBc ∆marker: 39dB Out Band Spurious Emission ＜ -13dBm RBW: 30MHz Flatness ＜ ±1.25dB Return Loss / VSWR ＞ 14dB /＜ 1.5 : 1 Uplink ＜ 5dB @ Max gain Noise Figure ＜ 8dB @ Min gain B+B’ B’ Band Select Lower B or Upper B Gain Propagation Delay Spurious Emission Roll off 1dB BW ±1.5MHz ＞ 40dBc Test frequency measured ±3MHz > 50dBc from band edge Characteristic Impedance 50Ω 11 Bell Mobility User Manual In-building Repeater 3.3 Electrical and Environmental Specifications Item Specification Remark RF Connector N-Type Female Donor & Server ANT Port Power AC MS3102A-10SL (3Pin) MIL-C-5015 Type Connector DC SCK-16-2P (2Pin) Circular Type AC Supply AC 120V 60Hz 3.0A Out Dimension 450(L)*410(W)*199(H) cm Net Weight 17.6 kgs Material Module AL6063S-T5 Cabinet AL5052P Operation Temperature 5℃ ~ +45℃ Convection cooling Humidity 5% ~ 95% Non-condensing Dust Resistance TELCORDIA GR63-CORE Vibration Resistance Environmental specifications MTBF 1G, 10~150Hz 0.1 Octaves/min NEMA1 100,000 hours 12 Bell Mobility User Manual In-building Repeater 3.4 Functions Parameter Gain Control Specification • Adjustable DL and UL Gain range 50~80dB (800MHz) • Display default Gain and current Gain function • AGS (Auto Gain Setting) Use for convenient Set-up AGS Auto Gain Setting 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) • To limit output power as far as default range ALC Auto Limit 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. • Shutdown when output power is higher than default level in Minimum Gain • Automatic Recovery Algorithm conversion after Shutdown status Band Select • B+B’ Band (14MHz) 13 Bell Mobility User Manual In-building Repeater Power Monitoring • Monitoring repeater’s output level Function • Isolation Check in initial set up or Reset • Monitoring Oscillation comparing to minimum/maximum Noise Floor level Oscillation Check • When Oscillation occurred, repeater attempts to stabilize Isolation through Gain control function. • Shutdown repeater when Oscillation still occurs in Minimum Gain • Automatic Recovery Algorithm conversion after Shutdown status • Noise Floor Observation in case of ±2.25MHz down at the center Spurious Emission Alarm • In case of Noise level > –13dBm, Spurious Emission is stabilized automatically • In case of Oscillation Spurious Emission Alarming in Minimum Gain, repeater will be shutdown • Automatically Switch to Recovery Algorithm at Shutdown 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 Security Temperature Control VSWR Monitoring IP address report via E-mail • Support HTTPS for Web Browser security • User authentication through User ID and Password • Monitoring temperature of repeater • Maximum and minimum set up is possible. Shutdown in over temperature • Automatic recovery after temperature becomes normal. (Hysteresis 10degree) • Monitoring VSWR of Donor ANT Port (Every 90 seconds) • Reporting VSWR Alarm and Shutdown when the rate is 3:1 • Automatic Recovery Algorithm conversion after Shutdown status • 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 LED Display • 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 system. • Input and Output signal levels are verified by LED bars. 14 Bell Mobility User Manual In-building Repeater 4. SETUP 4.1. Equipment Needed for In-buildingRepeater Setup Parameter Item Quantity Remark Major Component Repeater GRS-DUO24M-BC 1 EA Provided by GST Mounting Bracket 1 EA CD which contains User Manual 1 EA V.1.0 and Installation Guide V.1.0 Additional Components Ethernet Cable 6.6ft (2m) 1 EA Ground Cable 6.6ft (2m) 1 EA Ground Sems Screw M4 x 8mm 4 EA Bracket Sems Screw M6 x 16mm 4 EA Lag Screw 12.7mm x 50.8mm 4 EA Anchor Bolt Set 12.7mm x 50.8mm 4 EA Donor ANT 1 EA Server ANT 1 EA Antenna connection Cable TBD Not Included Spectrum Analyzer 1 EA Not Included Antenna RF Cable Testing and Measuring Equipment Provided by GST Not Included 4.1.1 Checkpoints before turning on the Repeater 1) System Power Check: AC electrical power to the repeater should be 110V, input electricity only after power verification. 2) Input RF Signal Range: Optimal input RSSI into the repeater is -55dBm ~ -25dBm for 800MHz. User should verify input condition of Donor ANT. If the input RSSI exceeds -20dBm, then external attenuators should be used. 3) Isolation check between DONOR/SERVER ANT: Isolation condition of this equipment is 87dBc (Gain+7dB) for 800MHz. User should check its condition before installation. 15 Bell Mobility User Manual In-building Repeater 4.1.3 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. 16 Bell Mobility User Manual In-building Repeater 4.1.4 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 800MHz 25dBm: Number of LED bars on front side of repeater will show input signal level. Less than ~ -85dBm: LED 1bar -84dBm~-67dBm: LED 2 bars -66dBm~-49dBm: LED 3 bars -48dBm~-31dBm: LED 4 bars More than -30dBm: LED 5 bars Number of LED bars 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 17 Bell Mobility User Manual In-building Repeater GRS-825DM-BC In-Building Repeater 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 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 18 Bell Mobility User Manual In-building Repeater 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-thephone technical support. 1-866-9-GST-USA 19 (1-866-947-8872) Bell Mobility User Manual In-building Repeater 4.2.4 Troubleshooting Guide Item Check Point Trouble shooting Note before system Input Level * System Input power range operation Downlink (800MHz) -55dBm/Total ~ -25dBm/Total Uplink (800MHz) -55dBm/Total ~ -25dBm/Total Note before system * System Gain operation Gain Downlink (800MHz) 50 ~ 80dB Uplink (800MHz) 50 ~ 80dB Note before system * Output power at Server port operation Output power Downlink (800MHz) 25dBm/Total Uplink (800MHz) 25dBm/Total * Please check quantity of all accessories with specification Check in Advance * Check points before open for service before you set up. * Fit cable length in accordance with field condition. * Set up 800MHz Donor antenna to secure Isolation (More than 87dBc) * Check following status - Verify that the antennas are securely mounted and pointed in the correct directions - Connection status between antennas and RF cable Check after open * 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 20 Bell Mobility User Manual In-building Repeater 4.2.5 Troubleshooting Guide Related to RF Symptom When repeater does not work properly When repeater does not work properly Check Point * Check Electricity Cord connection status * Checking electricity input to AC power outlet. Troubleshooting * Re-plug in AC power cord * Please verify AC power input by using DVM (Digital Voltage Meter) * Please Check following status - Proper maximum output power limit level When in alarming - BTS input level (Spectrum Level) * DL over-input alarm - Input RSSI value on Status Page - Downlink Attenuation level * Please reset AC power upon completing Alarm troubleshooting When in alarming When in alarming * Make sure output power is operating normally. * DL over-output alarm * Reset AC power upon completing Alarm troubleshooting. * Please make sure output level is operating normally * UL over-output alarm * Please reset AC power upon completing Alarm troubleshooting * Check following status - Antenna port connection - Verify that cable from I/O filter is secure. * Disconnect all antenna cables from the repeater, terminate all When in alarming * VSWR alarm antenna ports with 50Ohm terms and then reboot the repeater. If the VSWR alarm still occurs then equipment should be replaced. If the alarm goes away, then the VSWR issue is somewhere in the cabling or connectors. * Reset AC power upon completing Alarm troubleshooting When in alarming * IF Module alarm * Verify IF Module LED is On. * When LED is Off, module should be defective. 21 Bell Mobility User Manual In-building Repeater When in alarming * DL, UL PAM alarm When in alarming * Reset AC power upon completing Alarm troubleshooting * Verify DC power by using DVM (Digital Voltage Meter) * DC matter/Current alarm * Reset AC power upon completing Alarm troubleshooting. When in alarming * Check Isolation between Donor and Server. * UL Oscillation * Reset AC power upon completing Alarm troubleshooting When in alarming * Check connection status of LNA. * DL / UL LNA alarm * Reset AC power upon completing Alarm troubleshooting * Check following status: - Setting level of maximum temperature limit When in alarming * Temperature alarm - Temperature offset is normal or not. - Circumstances of temperature. * Reset AC power upon completing Alarm troubleshooting When in alarming * DL low-input alarm * Reset AC power upon completing Alarm troubleshooting * Check following status When in alarming - Output power level is normal or not. * DL low-output alarm - Whether minimum output limit level is normal. - Compare RSSI to maximum gain. * Reset AC power upon completing Alarm troubleshooting When in alarming * Verify that the HPA’s are On. * RF OFF * Reset AC power upon completing Alarm troubleshooting When output * Technician should verify * When Red light on the Shutdown LED, technician should power is no category of alarm at the front troubleshoot the alarm via Notebook computer. longer problem side of repeater. 22 Bell Mobility User Manual In-building 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 * Check the input level * Increase output power or check input change of BTS side. * Check Gain of the unit * If the Gain is different from normal level, please contact A/S longer problem When output power is no longer problem team. When output power is no * Cable connector loose. longer problem * 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 * Check input signal strength in the service area * Increase output power level of repeater by adjusting attenuation level. set up 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 * Contact network management team or service provider dropped call or bad * Check RSSI signal strength signal after setup 23 Bell Mobility User Manual In-building 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. or looks like shake CABLE. If not, it is oscillation connection problem.) Same as above Same as above * Input level change or module overheating. * Please check VSWR of the * Check input level from BTS side. * Check performance of each module. (Diagnosed by A/S team.) * Change to normal Cable. Cable is normal. 4.2.6 Troubleshooting Guide Related to NMS Symptom Check Points Troubleshooting * In case of Ethernet, verify IP addressing, DHCP function, and Link Fail * Communication problem that Cookies are deleted. * Verify that a crossover Ethernet cable is being used. Link Fail Link Fail * CLI Connection, Cable status check * Make sure 1:1 connection. * Follow instructions in the installation guide for this connection procedure. * CLI connection Check by * Please verify Port number of PC communication. USB to Serial Cable * Please check Cable connection status. 24 Bell Mobility User Manual In-building Repeater 5. IC Information General Information Transmitter Antenna This device has been designed to operate with the antennas listed below, and having a maximum gain of 80 dB. Antennas not included in this list or having a gain greater that cable loss of Antenna to Repeater t han 12 dB are strictly prohibited for use with this device. The required antenna impedance is 50 ohms. User Manual Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) t his device must accept any interference, including interference that may cause undesired operation of the device. To reduce potential radio interference to other users, the antenna type and its gain should be so chosen t hat the equivalent isotropically radiated power (e.i.r.p.) is not more than that permitted for successful co mmunication. General Standard Specifications User Manual (a) The nominal passband gain (dB); Cellular: 80.0 dB (b) The nominal bandwidth; Cellular : 15 MHz (c) The rated mean output power; Cellular : 25.0 dBm (d) The input and output impedances; 50 ohms (e) The following notice: "The Manufacturer's rated output power of this equipment is for single carrier o peration. For situations when multiple carrier signals are present, the rating would have to be reduced by 3.5 dB, especially where the output signal is re-radiated and can cause interference to adjacent band use rs. This power reduction is to be by means of input power or gain reduction and not by an attenuator at t he output of the device." 25
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