Next Generation Signal Enhancement OPTICAL / MOU Series / BTS LINK OPERATION & INST ALLATION MANUAL BTS Link® -104/108 FIBER OPTICAL DISTRIBUTED ANTENNA SYSTEM WITH 4/8 SBROUs FCC ID:S3CBTSLINK1048 IC: 5751A-BTSLINK1048 5920 0020 100 March 2008 Proprietary Information The information contained herein is proprietary to Shyam Telecom Limited. Unauthorized access, copy and replication are prohibited.
Next Generation Signal Enhancement INDEX 1. DOCUMENT HISTORY .......................................................................................... 3 2. DISCLAIMER ........................................................................................................... 4 3. SAFETY INSTRUCTIONS AND WARNINGS....................................................... 4 3.1. PERSONNEL SAFETY ..................................................................................... 4 3.2. EQUIPMENT SAFETY ........
Next Generation Signal Enhancement 1.
Next Generation Signal Enhancement 2. Disclaimer Every attempt has been made to make this material complete, accurate, and up-to-date. Users are cautioned, however, that Shyam Telecom Limited reserves the right to make changes without notice and shall not be responsible for any damages including consequential, caused by reliance of the contents presented, including, but not limited to, typographical, arithmetical, or listing errors.
Next Generation Signal Enhancement CAUTION It calls attention to a procedure or practice, which, if not followed, may result in personal injury, damage to the system or damage to individual components. Do not perform any procedure preceded by a CAUTION until described conditions are fully understood and met. 3.3. Electrostatic Sensitivity CAUTION ESD = ELECTROSTATIC DISCHARGE SENSITIVE DEVICE Observe electrostatic precautionary procedures.
Next Generation Signal Enhancement 4. Introduction 4.1. Purpose The purpose of this document is to describe the electrical and mechanical specifications, operation and maintenance of the BTS Link-104/108 Repeater. 4.2. Scope This document is the product description of the Shyam BTS Link-104/108 Repeater. 4.3.
Next Generation Signal Enhancement 4.4. References [1] ETS 300 086. Radio Equipment and Systems Land mobile service Technical characteristics and test conditions for radio equipment with an internal or external RF connector intended primarily for analogue speech. [2]ETS300609-4 Digital cellular telecommunications system (phase 2): Base Station Systems (BSS) equipment specification: Part 4: Repeaters.
Next Generation Signal Enhancement 5. Functional Description of BTS Link-104/108 Repeater 5.1. General Description The BTS Link-104/108 Repeater System is designed to provide indoor/outdoor coverage (depending on the location of the remote optical unit installed) and is equipped to handle signals in AWS band. It provides highly selective amplification in the pre-set band.
Next Generation Signal Enhancement The system is comprised of two units: I) Master Optical Unit (MOU): The MOU is installed at a suitable indoor location close to the BTS. It receives RF signals from BTS in the DL path and optical signals from different ROUs in the UL path.
Next Generation Signal Enhancement Server Antenna RF Cable Clamp RF cable from antenna Directional Coupler SBROU B T S Power supply cable Optical Fiber MOU Installed inside BTS enclosure Figure 1: Typical Outdoor Application of BTS-Link 104/108 All Rights Reserved Shyam Telecom Limited Page 10 / 41
Next Generation Signal Enhancement 6. To Get started-Basic Software Control of the System 6.1. General The system (MOU & SBROU) is equipped with a supervisory module that allows the monitoring and control of various parameters such as RF power, attenuation, temperature, status of door and alarm conditions etc.
Next Generation Signal Enhancement Functions as described below are carried out through CMC software: I) Login Repeater (Figure 2) After running the system Configuration & Monitoring Console (CMC), user needs to login. Similar sequence is to be followed at MOU & SBROU. To login: • Click the “Login” on the command bar. • Select the user type. • Enter the password. • Finally click the “OK”. After successful login, a message “Logged in successfully” will be flashed on the screen.
Next Generation Signal Enhancement Downlink • • RSSI Attenuation inserted Uplink • Out put Power • Attenuation inserted Optical Power • • OTX 1 & OTX 2 [Both units are equipped for 8 SBROUs] ORX 1 to 8 [As per number of equipped SBROUs] Power Supply • 5.5 V Temperature • Displays the system temperature Alarms • Alarms as per categorization viz. Critical, Major and Minor. Clicking at “detail alarms” can further check the associated detail.
Next Generation Signal Enhancement Figure 3: MOU ID Settings Figure 4: MOU Settings All Rights Reserved Shyam Telecom Limited Page 14 / 41
Next Generation Signal Enhancement Figure 5: MOU Status Monitoring C) Alarms-MOU (Refer Figure 6) Alarm Observed Detail DL RSSI low DL RSSI High UL Power High LD off [OTX-1 & OTX-2] LD Power Low [OTX-1 & OTX-2] LD Power High [OTX-1 & OTX-2] Photo Diode Power Low [ORX-1 to ORX-8] Photo Diode Power High [ORX-1 to ORX-8] Power Supply System Temperature High It indicates that the RSSI has gone below the set limit. It indicates that the RSSI has exceeded the higher limit set.
Next Generation Signal Enhancement Figure 6: MOU Alarm Monitoring Figure 7: SBROU Settings d) Settings in SBROU [Figure 7] After login, following setting is carried out: All Rights Reserved Shyam Telecom Limited Page 16 / 41
Next Generation Signal Enhancement Downlink • Output power limit • PA ON/OFF Uplink • RSSI upper limit • Attenuation inserted Optical • Laser Diode ON/OFF Figure 8: ROU Status Monitoring e) SBROU Status (Refer Figure 8) Status of SBROU as per Figure 8 is displayed through following set of (configurable) parameters: Downlink • Auto attenuation insertion • Output power • Temperature • RSSI Uplink All Rights Reserved Shyam Telecom Limited Page 17 / 41
Next Generation Signal Enhancement Optical Power • LD power • PD power In addition to above parameters, following parameters are also displayed: • Derived DC voltages • System temperature • Alarms – Category [Detail can be seen on Alarm window] Figure 9: SBROU Alarms Monitoring f) Alarms-SBOU (Refer Figure 9) Alarm Observed Detail PA OFF DL (Manual) When the user sets PA ON / OFF command as OFF, alarm will be generated. PA OFF DL (Auto) When the system sets the PA OFF, alarm will be generated.
Next Generation Signal Enhancement LD Power Low LD Power High PD Power Low PD Power High Power Supply It indicates that the LD power has gone below the set limit. It indicates that the LD power has exceeded the set limit. It indicates that the PD power has gone below the set limit. It indicates that the PD power exceeded the set limit. Failure of AC mains, 5.5 V DC & 27 VDC are indicated through separate LEDs. When antenna port is open or mismatch, alarm will be generated.
Next Generation Signal Enhancement Figure 10: Selection of SBROU for Status & Alarm Monitoring III) Communication Setting [Figure 11] It is possible to establish communication with MOU & ROU through the software incorporated in the system. i. Local Connection In this type of connection, user computer COM Port and system’s USB port are connected directly using cable. Proceed as under: • Click the “COMM.” on the command bar to display the COMMUNICATION window.
Next Generation Signal Enhancement Figure 11: Communication Settings ii. Remote Connection In this type of connection, User communicates from/to remote location with the system using wireless External Modem. To connect: • Click the “COMM.” on the command bar to display the COMMUNICATION window. • Select the Connection Type as “REMOTE”. • Select the computer’s Comm. Port where the GSM Modem is connected. • Click “OK”. • Now click the DIALUP on the command bar to display the DIALUP window.
Next Generation Signal Enhancement Click the “DISCONNECT” on the DIALUP window to disconnect remote communication with the system. CAUTION When the communication between repeater & PC/Laptop is in progress through USB: • Do not remove cable from the USB port. • Do not switch off the repeater. In case the communication is not required any more, click at EXIT before removing cable from USB port to avoid hanging of the PC/Laptop.
Next Generation Signal Enhancement 6.3. Block Description Main constituents of the system are: I) Master Optical Unit (MOU)- Figures 13 & 14 The MOU is installed at the indoor location close to the BTS. In the DL path, the received RF signals from the BTS are fed to the MOU, which converts the RF signals to a stream of optical signals to be applied to the optical fiber for transmission to SBROUs installed at different locations.
Next Generation Signal Enhancement g) Supervisory & ASK Modem: Supervisory and ASK modem enable the monitoring the status of MOU & SBROUs at different locations and the information can be extracted through USB port interface available in the front panel. II) Optical Fiber & Patch Cords: It is very important part of the system, which connects MOU with SBROU through two fibers. Two single mode optical fibers are needed between the MOU and each SBROU.
Next Generation Signal Enhancement III) Single Band Remote Optical Unit (SBROU): It houses the following modules: a) Optical Receiver Unit (ORX): One such unit is provided in the SBROU, which receives the optical signals in the 1310 nm wavelength in the DL path from MOU and converts the same to RF signals in the preset frequency band. b) Power Amplifier (PA): The PA unit is responsible for generating the desired RF power for application to the server antennas.
Next Generation Signal Enhancement 7. BTS LinK-104/108 Repeater Specifications 7.1. Electrical Specifications-RF & Optical S.NO. Parameter Specifications for MOU 1. Optical Wavelength (TX) Optical Wavelength (RX) Frequency Band 1310 nm Specifications SBROU 1550 nm 1550 nm 1310 nm 2110 MHz to 2155 MHz (DL) 1710 MHz to 1755 MHz (UL) 2110 MHz to 2155 MHz (DL) 1710 MHz to 1755 MHz (UL) 2. 3. 4. 5. 6. 7. 8. 9. Optical Power TX –1.
Next Generation Signal Enhancement 7.4. Mechanical Specification S.NO. Parameter Specifications for MOU 485x400x135 mm 1. Dimensions (19x16x5 inches) (w x h x d) 12 Kg. (26 lbs.) 2. Weight (Approx.) Metal Housing for 3. Housing 4. 5. 6. Grounding Connection Housing Color Cooling Specifications for ROU 700x385x210 mm (27x15.2x8inches) 25 Kg. (55 lbs.) +37dBm Metal Housing for outdoor application Indoor application - Bolt (Outdoor Housing) Grey Grey Convection Convection 7.5.
Next Generation Signal Enhancement Optical connectors for single mode fibers are designed for sub micron tolerances. Even a small particle of dust shall cause excessive loss & adversely affect the performance: For safety reasons & optimum performance, following points need attention: • The optical connectors should never be left in open condition to avoid entry of dust/moisture etc.
Next Generation Signal Enhancement 8. Installation 8.1. Preparation Sheet-Pre Installation 1. General Application: Outdoor Service Band: AWS Frequency Band DL: 2110 MHz to 2155 MHz Frequency Band UL: 1710 MHz to 1755 MHz Number of SBROUs installed at different sites: 2.
Next Generation Signal Enhancement 8.2. MOU Installation As mentioned earlier in this document, the MOU is placed at indoor location, which is close to the BTS from where the signals are to be fed through directional coupler. Following points need consideration: • The MOU should be installed at the spot where optical fiber ends are terminated and is a secured place where unauthorized access is avoided.
Next Generation Signal Enhancement To BTS Coupler Optical Tx & Rx USB Port Figure 16: Termination at MOU Important: • • • • Continuity/short circuiting of RF coaxial wherever used should be checked before making connections. Continuity of each fiber to the respective ROU should be ensured. The system should not be switched ON till the installation is completed and settings in the system are made. No optical connector should be left open.
Next Generation Signal Enhancement 8.3. Optical Fiber Laying The connectivity between the MOU and SBROUs at different sites is through optical fibers. In case the fibers are not available, the laying of optical fiber cable has to be undertaken. Single mode fibers are used for which two fibers are required between the MOU and each of the SBROUs. Depending on the situation, the type of optical fiber cable could be of aerial type or of buried type.
Next Generation Signal Enhancement • All technical specifications from the OFC supplier should be followed. • The termination of OFC at each end should be done at FDFs, which should be located close to the equipment. • Connection between the OFC (terminated at FDF) and the equipment should be carried out through optical jumpers with FCPC connectors. 8.4.
Next Generation Signal Enhancement 8.5. Dos & Don’t Dos 1. The BTS-104/108 system is comprised of two independent units viz. Master Optical unit & Single Band Remote Optical Unit; the site selection should be made with great care for maximum efficiency. 2. The site(s) should be accessible for maintenance purposes. 3. Arrangement is to be made to avoid unauthorized access to the system. 4. Proper grounding of the outdoor units is required to be done to avoid damage to the system. 5.
Next Generation Signal Enhancement 8.6. Checklist-Post Installation Service Band: AWS Frequency Band DL: 2110 MHz to 2155 MHz Frequency Band UL: 1710 MHz to 1755 MHz A. Coupler Installation S.NO. Point(s) To Be Verified 1. 2. 3. 4. 5. 30 dB coupler installed on BTS main antenna feeder Type N connector closer to antenna terminated with 50 Ohms Type N connector closer to BTS connected to donor cable BTS operating normally with coupler installed Coupler weatherproof B. Master Unit Installation S.NO.
Next Generation Signal Enhancement 4. 5. 6. Cable to server antenna connected to server antenna port Mains cable connected to the Remote unit RF Cable protection ensured and outdoor connections are waterproof E. Remote Unit Setup S.NO. Point(s) To Be Verified 1. 2. 3. 4. 5. 6. 7. Remarks Remote unit switched ON Any error/alarm observed Received optical signals at RX port Attenuator inserted for desired RF power RF power set Optical signal strength at TX port Remote unit secured.
Next Generation Signal Enhancement 9. System Maintenance 9.1. General The system normally operates without any operator intervention or maintenance. If, in the unlikely event of a unit failure, the field replaceable units (antenna unit, cables) should be checked for faults and the system restored. The faulty unit can be removed and replaced with a spare while the rest of the system is still operating. Soldering or local repair of the modules should be avoided from better maintenance point of view.
Next Generation Signal Enhancement FCC Statement: FCC ID:S3CBTSLINK1048 This device complies with Part 2, 27 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference and (2) this device must accept any interference received, including interference that may cause undesired operation. IC Statement: Trade Name: SHYAM BTS Link-104/108 Repeater Model No.: 104/108 IC: 5751A-BTSLINK1048 This device complies with RSS-131, RSS-102 of the IC Rules.
Next Generation Signal Enhancement For Technical Support, please contact at any of the following addresses: For Americas Shyam Telecom Inc. 6, KILMER ROAD, SUIT D, EDISON, New Jersy-08817 (USA) For Europe Shyam Telecom GmbH. Frohsinnstrasse 16, 63739 Aschaffenburg, Germany Tel: + 49-6021-45901-0 Fax: + 49-6021-45901-29 For ASEAN & Others Shyam Telecom Ltd. 246, Phase IV, UDYOG VIHAR, GURGAON – 122015 (INDIA) Tel: +91-124-4311600 FAX: +91-124-4018117 Email: contact@shyamtelecom.