OPERATIONS / MAINTENANCE MANUAL For 400MHz Fiber Optic Fed & RF Fed Bi-Directional Amplifier AE04A-D1248-001 AE04A-D1246-001 800MHz Fiber Optic Fed & RF Fed Bi-Directional Amplifier AE04A-D1437-001 AE04A-D1436-001 MANUAL NO.
Table of Contents INTRODUCTION ..................................................................................................................................... 5 Scope.........................................................................................................................................................................5 Purpose..................................................................................................................................................................
5.6 5.7 5.8 6. 5.5.3 Photograph....................................................................................................................................39 Fiber Optic Transceiver Module (AE04A-D1100-009).........................................................................39 5.6.1 Description ....................................................................................................................................39 5.6.2 Specification..............................................
AMENDMENT RECORD SHEET Rev Nō. Date A 6/16/04 ECN Reason 1st Issue Wireless Innovations Group 2601 Telecom Parkway Richardson, Texas 75082 DWG NO: Error! Not a valid link. Page Amended Incorpor ated By J. Hsu/ E. Yearby 400/800 MHz Fiber Optic & RF Fed Bi-Directional Amplifier Operations / Maintenance Manual Rev: Error! Not a valid link.
INTRODUCTION Scope This handbook is for use solely with the equipment identified by the Andrew Part Numbers shown on the front cover. It is not to be used with any other equipment unless specifically authorized by Andrew Corporation. Purpose The purpose of this handbook is to provide the operator/maintainer with sufficient information to operate, maintain and repair the equipment while in the filed.
GLOSSARY OF TERMS ALC AC BDA C/N DC dB dBc dBm ESD EMI FC/APC GND HPA Hz kHz kM LED LPA MHz mW nm NF OIP3 Ω RF Rx Tx V VAC VSWR Automatic Level Control Alternating Current Bi-Directional Amplifier Carrier-to-Noise Ratio Direct Current Decibel Decibel Below Carrier Decibel referenced to 1 mW Electrostatic Discharge Electromagnetic Interference Fiber Connector /Angle Polish Connector Ground High Power Amplifier Hertz Kilohertz Kilometer Light Emitting Diode Low Power Amplifier Megahertz Milliwatt nanometer
1.0 1.1 SAFETY CONSIDERATIONS Electric Shock Hazard To avoid electric shock, switch the BDA “OFF” prior to performing any repairs. All repairs beyond modular replacement must be performed by Andrew Trained Technicians. 1.2 Hot Surface Hazard RF power into the BDA will be limited by the use of high power attenuators. These attenuators will be located at the transmitter source. Caution should be taken when working near high power attenuators due to the risk of being burned by its hot surface.
2.0 EQUIPMENT OVERVIEW / DESCRIPTION MBTA System Wide Radio Tunnel Antenna Distribution System provides extended radio coverage within MBTA rail transit tunnels. The new tunnel antenna system is a two-way communication system consisting of 400 MHz base transceiver stations, 800 MHz base transceiver stations, antennas, radiating cable, fiber optic cable and BDAs. Both the 400 MHz and 800 MHz systems operate independently.
3.1 Parts Lists 3.1.1 400 MHz Bi-Directional Amplifier Andrew Part Number AE04A-D1264-001 AE04A-D1442-001 AE04A-D1443-001 AE04A-D1100-009 AE04A-D0803-002 AE04A-D0805-007 Description Qty. Section 2 1 1 1 1 1 5.1 5.2 5.3 5.6 5.7 5.8 Qty. Section 2 1 1 1 1 5.4 5.5 5.6 5.7 5.8 400 MHz EO Cell Amplifier Module 480 MHz High Isolation Duplexer 480 MHz Low Isolation Duplexer1 Fiber Optic Transceiver Module +48V Power Supply Module Alarm Module (Optional Equipment) 1.Used in RF Fed BDA. 3.1.
AC Power 120 VAC Single Phase Notes: 1.Via Front Panel RS232 Connector. 2. Two-Tone Intermodulation: Measured two-output carriers at +20.0 dBm/C (+19.0 dBm/C for RF Fed BDA) at 483.1625 MHz and 483.2375 MHz with a BDA gain setting of 48 dB. 3.2.2 400 MHz Bi-Directional Amplifier Uplink Specification PARAMETER Operating Frequency Range Pass Bandwidth Gain Typical Output Gain Adjustment1 Composite Output Power Composite Input Power (With ALC Activated) Impedance VSWR OIP32 Noise Power max.
Composite Input Power Impedance VSWR OIP32 Noise Power max. @ 48dB Gain AC Power -18 dBm max. 50 Ohms 2:1 +44 dBm -64 dBm/Hz (-110 dBm/Hz; RF Fed BDA) 120 VAC Single Phase Notes: 1.Via Front Panel RS232 Connector. 2. Two-Tone Intermodulation: Measured two-output carriers at +23.5 dBm/C (+16.8 dBm/C for RF Fed BDA) in the 866 – 869 MHz band, with a BDA gain setting of 48 dB. 3.2.
3.4 Environmental Specifications PARAMETERS Operating Temperature Operating Relative Humidity Dry Storage Temperature ESD & EMI1 Shock, Vibration and Moisture Resistance2 4.0 SPECIFICATION -20°C to +60°C 5% to 95% (Non-Condensing) -25°C to +60°C IEC 65 (Secretariat) 129 Draft Pub. 801-2 MIL-STD810(E) Notes: 1. Electromagnetic Compatibility (ESD) Part 2. 2. Shock-Method 516.4 Procedure I (20g’s), Vibration-Method 514.4 Category 1, Moisture Resistance-Method 506.3 Procedure II. EQUIPMENT PHOTOGRAPHS 4.
4.2 800 MHz Fiber Optic Fed Bi-Directional Amplifier Wireless Innovations Group 2601 Telecom Parkway Richardson, Texas 75082 DWG NO: Error! Not a valid link. 400/800 MHz Fiber Optic & RF Fed Bi-Directional Amplifier Operations / Maintenance Manual Rev: Error! Not a valid link.
5.0 5.1 MODULES 400 MHz EO Cell Amplifier Module (AE04A-D1264-001) 5.1.1 Description This 2Watt, 483 - 487 MHz, class A Power Amplifier Module provides a nominal 52 dB of gain. It has 30 dB of gain adjustment range, which can be varied electronically thru the front panel RS232 connector. Additionally, the module has an internal Automatic Level Control (ALC) circuit, which can be set to limit the maximum power level produced by the BDA.
5.1.2 Specification PARAMETER Operating Frequency Range Gain Typical Output Gain Adjustment1 Composite Output Power Impedance VSWR OIP32 Noise Power max. @ 51.5 dB Gain DC Power Operating Temperature SPECIFICATION 483.1625 – 486.2375 MHz 51.5 dB 30 dB ≥ +33.5 dBm 50 Ohms 2:1 ≥ + 47.5 dBm -111.5 dBm/Hz + 48 VDC -20°C to +60°C Note: 1.Via Front Panel RS232 Connector. 2.Two-Tone Intermodulation: Measured two-output carriers of +23.5 dBm/C at 483.1625 MHz and 483.2375 MHz with 51.5 dB gain setting. 5.1.
Wireless Innovations Group 2601 Telecom Parkway Richardson, Texas 75082 DWG NO: Error! Not a valid link. 400/800 MHz Fiber Optic & RF Fed Bi-Directional Amplifier Operations / Maintenance Manual Rev: Error! Not a valid link.
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5.2 480 MHz High Isolation Duplexer (AE04A-D1442-001) 5.2.1 Description The 480 MHz, high isolation duplexer provides the high bandpass selectivity and isolation for the Uplink and the Downlink frequency. The duplexer is based on a 5-cavity cross-coupled bandpass filter design and is aligned carefully during production to optimise the insertion loss, selectivity, and VSWR The duplexer is a fully passive device and should have an extremely long troublefree working life and requires no maintenance.
Operating Temperature 5.2.3 5.3 -20°C to +60°C Photograph 480 MHz Low Isolation Duplexer (AE04A-D1443-001) 5.3.1 Description Wireless Innovations Group 2601 Telecom Parkway Richardson, Texas 75082 DWG NO: Error! Not a valid link. 400/800 MHz Fiber Optic & RF Fed Bi-Directional Amplifier Operations / Maintenance Manual Rev: Error! Not a valid link.
The 480 MHz, low isolation duplexer provides the band selectivity and isolation for the Uplink and the Downlink frequency. The duplexer is based on 4 ceramic coaxial resonators design and is aligned carefully during production to optimize the insertion loss, isolation, and VSWR The duplexer is a fully passive device and should have an extremely long troublefree working life and requires no maintenance. Should the duplexer be suspect of failure, the entire duplexer module should be replaced. 5.3.
This 2Watt, 821-869 MHz, class A Power Amplifier Module provides a nominally 51 dB of gain. It has 30 dB of gain adjustment range, which can be varied electronically thru the front panel RS232 connector. Additionally, the module has an internal Automatic Level Control (ALC) circuit, which can be set to limit the maximum power level produced by the BDA. This module has an on board RISC processor that provides optional alarming/status monitoring and communications capabilities.
845 MHz and 845.6 MHz with 51 dB gain setting. 5.4.3 Photographs Wireless Innovations Group 2601 Telecom Parkway Richardson, Texas 75082 DWG NO: Error! Not a valid link. 400/800 MHz Fiber Optic & RF Fed Bi-Directional Amplifier Operations / Maintenance Manual Rev: Error! Not a valid link.
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5.4.4 Schematics INTENTIONALLY LEFT BLANK Wireless Innovations Group 2601 Telecom Parkway Richardson, Texas 75082 DWG NO: Error! Not a valid link. 400/800 MHz Fiber Optic & RF Fed Bi-Directional Amplifier Operations / Maintenance Manual Rev: Error! Not a valid link.
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5.5 800 MHz High Isolation Duplexer (AE04A-D1438-001) 5.5.1 Description The 800 MHz, high isolation duplexer provides the high bandpass selectivity and isolation for the Uplink and the Downlink frequency. The duplexer is based on a 5-cavity cross-coupled bandpass filter design and is aligned carefully during production to optimize the insertion loss, selectivity, and VSWR The duplexer is a fully passive device and should have an extremely long troublefree working life and requires no maintenance.
5.5.3 Photograph 5.6 Fiber Optic Transceiver Module (AE04A-D1100-009) 5.6.1 Description The Fiber Optic Transceiver Module converts the Downlink and Uplink electrical (RF) signals into optical signals prior to routing the signals between remote BDAs and the base transceiver station. The fiber optic transceiver is capable of providing up to 18 dB of RF gain.
The fiber optic transceiver module has an on board RISC processor that provides optional alarming/status monitoring and communications capability. The fiber transceiver is also equipped with high reliable parts to provide a long trouble-free operating life. Should the module be suspect of failure, the entire module should be replaced. Note, due to the possibility of laser radiation hazard, the fiber optic transceiver module cover should never be removed to troubleshoot or to adjust the laser optical power.
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INTENTIONALLY LEFT BLANK 5.7 +48V Power Supply Module (AE04A-D0803-002) Wireless Innovations Group 2601 Telecom Parkway Richardson, Texas 75082 DWG NO: Error! Not a valid link. 400/800 MHz Fiber Optic & RF Fed Bi-Directional Amplifier Operations / Maintenance Manual Rev: Error! Not a valid link.
5.7.1 Description The AC to DC Power Supply Module provides + 48VDC from the main AC source to the BDA Chassis. The power supply module contains an AC front-end FARM (Filter/Autoranging Rectifier Module) followed by a DC-DC Converter Module. The AC to DC power supply module is capable of interfacing directly with various sources of AC power. The power supply module is equipped with a EMI filter, a autorange line rectifier and a inrush current limiting circuit.
5.7.3 Photographs Wireless Innovations Group 2601 Telecom Parkway Richardson, Texas 75082 DWG NO: Error! Not a valid link. 400/800 MHz Fiber Optic & RF Fed Bi-Directional Amplifier Operations / Maintenance Manual Rev: Error! Not a valid link.
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5.8 Alarm Module (AE04A-D0805-007): Optional 5.8.1 Description The optional Alarm Module serves as a communication processor to provide a single point of monitoring interface for all the modules within the Fiber Optical Fed BDA. The summary alarm/monitoring status of each module can then be provided over Alarm Module’s RS-232 interface or sent thru the Fiber Optic Transceiver Module to a remote control location. In the unlikely event of failure, the entire Alarm Module should be replaced. 5.8.
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5.8.3 Schematics Wireless Innovations Group 2601 Telecom Parkway Richardson, Texas 75082 DWG NO: Error! Not a valid link. 400/800 MHz Fiber Optic & RF Fed Bi-Directional Amplifier Operations / Maintenance Manual Rev: Error! Not a valid link.
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INTENTIONALLY LEFT BLANK 6. INSTALLATION 6.1 BDA Installation & Gain Setup INSTALLATION 1 Install the BDA in a standard 19” rack. The BDA should be placed in a location where the interconnect cables (i.e. fiber, RF and serial cable) can be easily installed and not susceptible to damage. If the BDA is not installed in a controlled environment, a 5U high space should be located above and below the unit for airflow.
2 Plug the BDA into a 120 VAC single phase three wire grounded receptacle (5-15R). 3 Connect the RF antenna cable to the antenna port (Type-N Female) on the rear panel of the BDA. If a RF fed BDA was installed, connect the base station RF cable to the base station port (Type-N Female) on the rear panel of the BDA. 4 If a fiber fed BDA was installed, connect the fiber optic cable to the BDA front panel FC/APC connectors. If both fiber connection indicators (i.e.
The RF fed BDA gain setting is performed at the factory and no field adjustments are required. With a 48 dB factory gain setting, the maximum input signal level is –18 dBm. This input level will ensure that FCC power limit (+30 dBm) is not exceeded. UPLINK GAIN SETUP The fiber fed BDA provides 18 dB of gain for 9 dB of optical loss. The factory gain setting for the fiber fed BDA is 48 dB.
The RF fed BDA uplink gain setting was performed at the factory and no field adjustments are required. For a 48 dB gain setting, the maximum input signal level is – 14 dBm with ALC active and – 43 dBm without ALC active. Note, the ALC is activated at the factory and when the input level exceeds – 43 dBm, the ALC will go into operation. 7. BDA MAINTENANCE / TROUBLESHOOTING & MODULE CARE 7.1 Maintenance The BDA does not require any routine or preventative maintenance once in operation. 7.
The minimum tools and test equipment listed below are needed to successfully service the BDA: Spectrum Analyzer: Signal Generator: Attenuator: Optical Meter: Test cable x 2: Test cable x 2: Hand tools: 7.
7.4.3 Alarm Module Removal (Optional Equipment) Not applicable if alarm module is not being used. 1 Verify AC power to the BDA has been removed. 2 Disconnect the system RF and Fiber Optic cables. 3 Loosen the screws and remove the blank front plate right of the Alarm module. 4 Loosen the module top and bottom wedge locks using a 9/64” allen wrench. 5 Loosen the module front plate screws. 6 Slowly but firmly, pull the module straight out of the chassis.
When tightening RF Type-N connectors located on the rear of the BDA, use a dedicated NType torque wrench. If Type-N connectors are over-tightened, irreparable damage will occur. Do not use adjustable pliers to loosen or tighten connectors. When connecting or disconnecting the fiber optic cable connectors located on the front panel of the fiber optic transceiver module, exercise caution not to touch the optical connector center pin.