User manual
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| Document ID | 737969 |
| Application ID | +tNKq4T4hdadebtmKkLyRw== |
| Document Description | User manual |
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| Document Type | User Manual |
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| Filesize | 133.73kB (1671609 bits) |
| Date Submitted | 2006-12-13 00:00:00 |
| Date Available | 2006-12-13 00:00:00 |
| Creation Date | 2005-05-20 13:41:14 |
| Producing Software | Acrobat Distiller 5.0 (Windows) |
| Document Lastmod | 2005-05-20 13:41:14 |
| Document Title | Microsoft Word - MBTA Fiber-Fed Bi-Directional Amplifier Manual No Sch Rev – |
| Document Creator | PScript5.dll Version 5.2 |
| Document Author: | rdulmage |
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. AE04B-A1669 REVISION A The information set forth in this document and all rights in and to inventions disclosed herein, and patents that might be granted thereon disclosing, employing or covering the materials, methods, techniques or apparatus described herein are the exclusive property of Andrew Corporation. This document is an operation and maintenance manual. No disclosure or reproduction of the information or drawings shall be made of any other purpose without the prior written consent of Andrew Corporation. Use of the information contained herein to fabricate or assemble any item in whole or in part is expressly prohibited. 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. Date:06/16/2004 Page:1 of 63 Table of Contents INTRODUCTION ..................................................................................................................................... 5 Scope.........................................................................................................................................................................5 Purpose.....................................................................................................................................................................5 GLOSSARY OF TERMS ................................................................................................................................ 6 1.0 SAFETY CONSIDERATIONS ..................................................................................................... 7 1.1 1.2 1.3 1.4 2.0 3.0 3.1 3.2 3.3 3.4 4.0 Electric Shock Hazard ...............................................................................................................................7 Hot Surface Hazard ...................................................................................................................................7 Optical Laser Hazard ................................................................................................................................7 Emergency Contact Numbers ...................................................................................................................7 EQUIPMENT OVERVIEW / DESCRIPTION ........................................................................... 8 SPECIFICATION .......................................................................................................................... 8 Parts Lists ...................................................................................................................................................9 3.1.1 400 MHz Bi-Directional Amplifier ....................................................................................................9 3.1.2 800 MHz Bi-Directional Amplifier ....................................................................................................9 Electrical Specifications.............................................................................................................................9 3.2.1 400 MHz Bi-Directional Amplifier Downlink Specification............................................................9 3.2.2 400 MHz Bi-Directional Amplifier Uplink Specification...............................................................10 3.2.3 800 MHz Bi-Directional Amplifier Downlink Specification..........................................................10 3.2.4 800 MHz Bi-directional Amplifier Uplink Specification ...............................................................11 Mechanical Specifications........................................................................................................................11 Environmental Specifications..................................................................................................................12 EQUIPMENT PHOTOGRAPHS ................................................................................................ 12 4.1 400 MHz Fiber Optic Fed Bi-Directional Amplifier ..................................................................................12 4.2 800 MHz Fiber Optic Fed Bi-Directional Amplifier ..................................................................................13 5.0 5.1 5.2 5.3 5.4 5.5 MODULES .................................................................................................................................... 14 400 MHz EO Cell Amplifier Module (AE04A-D1264-001) ..................................................................14 5.1.1 Description ....................................................................................................................................14 5.1.2 Specification..................................................................................................................................15 5.1.3 Photographs ..................................................................................................................................15 5.1.4 Schematics..................................................................................... Error! Bookmark not defined. 480 MHz High Isolation Duplexer (AE04A-D1442-001) ......................................................................26 5.2.1 Description ....................................................................................................................................26 5.2.2 Specification..................................................................................................................................26 5.2.3 Photograph....................................................................................................................................27 480 MHz Low Isolation Duplexer (AE04A-D1443-001) .......................................................................27 5.3.1 Description ....................................................................................................................................27 5.3.2 Specification..................................................................................................................................28 5.3.3 Photograph ...................................................................................................................................28 800 MHz EO Cell Amplifier Module (AE04A-D1265-001) ..................................................................28 5.4.1 Description ....................................................................................................................................28 5.4.2 Specification..................................................................................................................................29 5.4.3 Photographs..................................................................................................................................30 5.4.4 Schematics.....................................................................................................................................32 800 MHz High Isolation Duplexer (AE04A-D1438-001) ......................................................................38 5.5.1 Description ....................................................................................................................................38 5.5.2 Specification..................................................................................................................................38 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. Date:06/16/2004 Page:2 of 63 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..................................................................................................................................40 5.6.3 Photographs ..................................................................................................................................41 5.6.4 Schematics.....................................................................................................................................42 +48V Power Supply Module (AE04A-D0803-002) ................................................................................51 5.7.1 Description ....................................................................................................................................52 5.7.2 Specification..................................................................................................................................52 5.7.3 Photographs ..................................................................................................................................53 5.7.4 Schematics.....................................................................................................................................54 Alarm Module (AE04A-D0805-007): Optional......................................................................................55 5.8.1 Description ....................................................................................................................................55 5.8.2 Photographs ..................................................................................................................................55 5.8.3 Schematics.....................................................................................................................................57 INSTALLATION.......................................................................................................................... 61 6.1 7. BDA Installation & Gain Setup ..............................................................................................................61 BDA MAINTENANCE / TROUBLESHOOTING & MODULE CARE ............................................. 64 7.1 7.2 7.3 7.4 7.4.1 7.4.2 7.4.3 7.4.4 7.4.5 7.4.6 Maintenance .............................................................................................................................................64 BDA Troubleshooting Procedure ...........................................................................................................64 Tools & Test Equipment..........................................................................................................................64 Module Care .............................................................................................................................................65 Module Removal....................................................................................................................................65 Module Installation ...............................................................................................................................65 Alarm Module Removal (Optional Equipment) ...................................................................................66 Alarm Module Installation (Optional Equipment)..............................................................................66 Module Transportation .........................................................................................................................66 BDA Connections ..................................................................................................................................66 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. Date:06/16/2004 Page:3 of 63 AMENDMENT RECORD SHEET Rev Nō. Date 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. Date:06/16/2004 Page:4 of 63 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. All repairs and adjustments that are not filed repairable will be performed by Andrew Corporation Richardson, Texas facility. Limitation of Information Notice This manual is written for the use of technically competent operators/service persons. No liability is accepted by Andrew Corporation for the misuse of the information contained within this manual. 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. Date:06/16/2004 Page:5 of 63 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 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 Noise Figure Output Third-Order Intercept Point Ohm Radio Frequency Receiver Transmitter Volt Volt Alternating Current Voltage Standing Wave Ratio 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. Date:06/16/2004 Page:6 of 63 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. Due to the amount of heat dissipated by the BDA heat fins, caution should be taken when working near heat fins due to the risk of being burned by its hot surface. 1.3 Optical Laser Hazard To avoid injury to the eyes, do not look directly into fiber optic transceiver transmit port (Tx). 1.4 RF Exposure warning The installer must mount the downlink transmit antenna in a manner that will insure a minimum separation distance of 40 cm. from the user or nearby persons. 1.5 Emergency Contact Numbers Andrew Engineering Department contact information: Andrew Corporation Attn: Wireless Innovations Group 2601 Telecom Parkway Richardson, Texas U.S.A. 75082-3521 Telephone: 972-952-9700 Fax: 972-952-0018 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. Date:06/16/2004 Page:7 of 63 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. The 400 MHz system operate as a conventional analog voice communication system and the 800 MHz system operate as a digital trunked radio system for voice and data communications. Radio signals routed from the base transceiver stations to the BDAs are performed via fiber optic cable. Once the optical signal is received by the BDA, it is converted back into an electrical (RF) signal, amplified and transmitted throughout the tunnel antenna distribution system. For RF signals transmitted within the tunnel, they are received by the BDA, amplified, converted into a optical signal and sent via fiber cable to the base transceiver stations. Each BDA is designed for a 19” rack mount cabinet and is equipped with interchangeable modules. These modules are field replaceable by removing them from the front chassis of the BDA. The modules consist of a downlink amplifier, uplink amplifier, high isolation duplexer, low isolation duplexer (400 MHz RF fed BDA only), fiber optic transceiver (fiber fed BDA only) and a AC to DC power supply. and alarm module (Optional Equipment). All BDA controls are performed via a RS232 connector located on the front panel of each amplifier module. Each BDA has 30 dB of gain adjustment for both the uplink and downlink RF path. This adjustment is varied electronically thru the amplifier modules’ front panel RS232 connector. Additionally, each of the amplifier modules are equipped with an Automatic Level Control (ALC) circuit which can limit the maximum power level produced by the BDA. OPTIONAL EQUIPMENT (Not Used By MBTA) An alarm module is available as an option to serve as a central communication agent to monitor the status of each module and send a summary alarm to remote locations via the fiber optic transceiver module. 3.0 SPECIFICATION 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. Date:06/16/2004 Page:8 of 63 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 5.1 5.2 5.3 5.6 5.7 5.8 Qty. Section 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. 3.1.2 800 MHz Bi-Directional Amplifier Andrew Part Number AE04A-D1265-001 AE04A-D1438-001 AE04A-D1100-009 AE04A-D0803-002 AE04A-D0805-007 Description 800 MHz EO Cell Amplifier Module 800 MHz High Isolation Duplexer1 Fiber Optic Transceiver Module +48V Power Supply Module Alarm Module (Optional Equipment) 1.Two units required for RF Fed BDA. 3.2 Electrical Specifications 3.2.1 400 MHz Bi-Directional Amplifier Downlink Specification PARAMETER Operating Frequency Range Pass Bandwidth Gain Typical Output Gain Adjustment1 Power Output @ 4 Carriers Composite Output Power Composite Input Power Impedance VSWR OIP32 Noise Power max. @ 48dB Gain Wireless Innovations Group 2601 Telecom Parkway Richardson, Texas 75082 DWG NO: Error! Not a valid link. DOWNLINK SPECIFICATION 483.1625 – 483.2375 MHz 75 kHz 48 dB 30 dB +19.0 dBm/C +30 dBm max. -18 dBm max. 50 Ohms 2:1 +44 dBm -64 dBm/Hz (-110 dBm/Hz; RF Fed BDA) 400/800 MHz Fiber Optic & RF Fed Bi-Directional Amplifier Operations / Maintenance Manual Rev: Error! Not a valid link. Date:06/16/2004 Page:9 of 63 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. @ 48 dB Gain AC Power Notes: UPLINK SPECIFICATION 486.1625 – 486.2375 MHz 75 kHz 48 dB 30 dB +5 dBm max. -14 dBm max. 50 Ohms 2:1 + 26 dBm (+44 dBm; RF Fed BDA) -110 dBm/Hz 120 VAC Single Phase 1.Via Front Panel RS232 Connector. 2. Two-Tone Intermodulation: Measured two-input carriers at – 48 dBm/C (-30 dBm/C for RF Fed BDA) at 486.1625 MHz and 486.2375 MHz with a BDA gain setting of 48 dB. 3.2.3 800 MHz Bi-Directional Amplifier Downlink Specification PARAMETER Pass Bandwidth Gain Typical Output Gain Adjustment1 Power Output @ 16 Carriers DOWNLINK SPECIFICATION 866 – 869 MHz 3 MHz 48 dB 30 dB +11.1 dBm/C Power Output @ 8 Carriers +16.8 dBm/C Composite Output Power +30 dBm max. Operating Frequency Range 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. Date:06/16/2004 Page:10 of 63 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. 3.2.4 800 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. @ 48 dB Gain AC Power UPLINK SPECIFICATION 821 – 824 MHz 3 MHz 48 dB 30 dB +5 dBm max. -14 dBm max. 50 Ohms 2:1 + 26 dBm (+44 dBm; RF Fed BDA) -110 dBm/Hz 120 VAC Single Phase Notes: 1.Via Front Panel RS232 Connector. 2. Two-Tone Intermodulation: Measure at two-input carriers of -48 dBm/C (-30 dBm/C for RF Fed BDA) in the 821 – 824 MHz band, with a BDA gain setting of 48 dB. 3.3 Mechanical Specifications PARAMETERS RF Connectors RS232 Connector Mounting Configuration Dimensions Typical (HxWxD) Cooling Chassis Stud Wireless Innovations Group 2601 Telecom Parkway Richardson, Texas 75082 DWG NO: Error! Not a valid link. SPECIFICATION Type-N Female D-Sub, 9 pin 19.0 inch Rack Mount 6.4 in. x 19.0 in. x 15.8 in. Convection, External Heatsink Ground 400/800 MHz Fiber Optic & RF Fed Bi-Directional Amplifier Operations / Maintenance Manual Rev: Error! Not a valid link. Date:06/16/2004 Page:11 of 63 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 4.1 400 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. Date:06/16/2004 Page:12 of 63 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. Date:06/16/2004 Page:13 of 63 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. This module has an on board RISC processor that provides optional alarming/status monitoring and communications capabilities. The same module design is used for both the Downlink and Uplink amplifier. The amplifier modules contain high reliable RF parts to provide a long troublefree operating life. In the unlikely event of failure, the entire amplifier module should be replaced. 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. Date:06/16/2004 Page:14 of 63 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. 5.1.3 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. Date:06/16/2004 Page:15 of 63 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. Date:06/16/2004 Page:16 of 63 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. Date:06/16/2004 Page:17 of 63 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. Date:06/16/2004 Page:18 of 63 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. Date:06/16/2004 Page:19 of 63 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. Date:06/16/2004 Page:20 of 63 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. Date:06/16/2004 Page:21 of 63 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. Date:06/16/2004 Page:22 of 63 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. Date:06/16/2004 Page:23 of 63 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. Date:06/16/2004 Page:24 of 63 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. Date:06/16/2004 Page:25 of 63 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. Should the duplexer be suspect of failure, the entire duplexer module should be replaced. 5.2.2 Specification PARAMETER Frequency Range: Downlink Uplink Passband Insertion Loss Passband VSWR Impedance Power Handling Downlink-To-Uplink Isolation Uplink-To-Downlink Isolation Wireless Innovations Group 2601 Telecom Parkway Richardson, Texas 75082 DWG NO: Error! Not a valid link. SPECIFICATION 483.1375 – 483.2625 MHz 486.1375 – 486.2625 MHz 3.5 dB < 1.2:1 50 Ohms 10 Watt > 96 dB @ Receive Port > 96 dB @ Transmit Port 400/800 MHz Fiber Optic & RF Fed Bi-Directional Amplifier Operations / Maintenance Manual Rev: Error! Not a valid link. Date:06/16/2004 Page:26 of 63 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. Date:06/16/2004 Page:27 of 63 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. 5.3.2 Specification PARAMETER Frequency Range: Downlink Uplink Passband Insertion Loss Passband VSWR Impedance Power Handling Downlink-To-Uplink Isolation Uplink-To-Downlink Isolation Operating Temperature 5.3.3 5.4 SPECIFICATION 483.1375 – 483.2625 MHz 486.1375 – 486.2625 MHz 3.5 dB < 1.2:1 50 Ohms 5 Watt > 50 dB @ Receive Port > 55 dB @ Transmit Port -20°C to +60°C Photograph 800 MHz EO Cell Amplifier Module (AE04A-D1265-001) 5.4.1 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. Date:06/16/2004 Page:28 of 63 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. The same module design is used for both the Downlink and Uplink amplifier. The amplifier module contains high reliable RF parts to provide a long troublefree operating life. In the unlikely event of failure, the entire amplifier module should be replaced. 5.4.2 Specification PARAMETER Operating Frequency Range Gain Typical Output Gain Adjustment1 Composite Output Power Impedance VSWR OIP32 Noise Power max. @ 51 dB Gain DC Power Operating Temperature SPECIFICATION 821 – 869 MHz 51 dB 30 dB ≥ +33 dBm 50 Ohms 2:1 ≥ + 47 dBm -111 dBm/Hz +48 VDC -20°C to +60°C Note: 1.Via Front Panel RS232 Connector. 2.Two-Tone Intermodulation: Measure at two-output carriers of +23.5 dBm/C at 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. Date:06/16/2004 Page:29 of 63 845 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. Date:06/16/2004 Page:30 of 63 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. Date:06/16/2004 Page:31 of 63 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. Date:06/16/2004 Page:32 of 63 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. Date:06/16/2004 Page:33 of 63 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. Date:06/16/2004 Page:34 of 63 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. Date:06/16/2004 Page:35 of 63 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. Date:06/16/2004 Page:36 of 63 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. Date:06/16/2004 Page:37 of 63 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. Should the duplexer be suspect of failure, the entire duplexer module should be replaced. 5.5.2 Specification PARAMETER Frequency Range: Downlink Uplink Passband Insertion Loss Passband VSWR Impedance Power Handling Downlink-To-Uplink Isolation Uplink-To-Downlink Isolation Operating Temperature Wireless Innovations Group 2601 Telecom Parkway Richardson, Texas 75082 DWG NO: Error! Not a valid link. SPECIFICATION 866 – 869 MHz 821 – 824 MHz 1 dB < 1.2:1 50 Ohms 10 Watt > 96 dB @ Receive Port > 96 dB @ Transmit Port -20°C to +60°C 400/800 MHz Fiber Optic & RF Fed Bi-Directional Amplifier Operations / Maintenance Manual Rev: Error! Not a valid link. Date:06/16/2004 Page:38 of 63 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. So for fiber optic links with 9 dB or less of optical loss, the fiber transceiver can negate that loss and in turn provide a fiber link that is lossless. During the BDA setup, the fiber optic link is set to 0 dB. 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. Date:06/16/2004 Page:39 of 63 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. 5.6.2 Specification OPTICAL PARAMETER Maximum Optical Link Loss Wavelength Laser Type Optical Output Power Optical Return Loss Connector Style FC/APC post-fix RF PARAMETER Frequency Range Link Gain Link Noise Figure 1 dB Compression Point Input Third Order Intercept Point Spur Free Dynamic Range Data Link Related Spurs Levels Power Supply Switching Noise Operating Temperature Wireless Innovations Group 2601 Telecom Parkway Richardson, Texas 75082 DWG NO: Error! Not a valid link. SPECIFICATION 9 dBo 1310+30 nm DFB, single-mode > 2 mW > -60 dB FC/APC SPECIFICATION 483-870 MHz 0 dB nominal 18 dB Front panel adjustable 58 dB typical ≥ + 13 dBm typical ≥ + 26 dBm minimum 95 dB/Hz > -70 dBc and 32 MHz from any desired signal < -80 dBc -20°C to +60°C 400/800 MHz Fiber Optic & RF Fed Bi-Directional Amplifier Operations / Maintenance Manual Rev: Error! Not a valid link. Date:06/16/2004 Page:40 of 63 5.6.3 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. Date:06/16/2004 Page:41 of 63 5.6.4 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. Date:06/16/2004 Page:42 of 63 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. Date:06/16/2004 Page:43 of 63 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. Date:06/16/2004 Page:44 of 63 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. Date:06/16/2004 Page:45 of 63 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. Date:06/16/2004 Page:46 of 63 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. Date:06/16/2004 Page:47 of 63 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. Date:06/16/2004 Page:48 of 63 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. Date:06/16/2004 Page:49 of 63 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. Date:06/16/2004 Page:50 of 63 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. Date:06/16/2004 Page:51 of 63 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. In the unlikely event of failure, the entire power supply module should be replaced. 5.7.2 Specification PARAMETER Input Voltage Output Voltage Output Current Output Power Operating Temperature Wireless Innovations Group 2601 Telecom Parkway Richardson, Texas 75082 DWG NO: Error! Not a valid link. SPECIFICATION 115/230 VAC Autoranging +48V 5.2 Amps 250 Watts -20°C to +60°C 400/800 MHz Fiber Optic & RF Fed Bi-Directional Amplifier Operations / Maintenance Manual Rev: Error! Not a valid link. Date:06/16/2004 Page:52 of 63 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. Date:06/16/2004 Page:53 of 63 5.7.4 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. Date:06/16/2004 Page:54 of 63 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. 5.8.2 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. Date:06/16/2004 Page:55 of 63 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. Date:06/16/2004 Page:56 of 63 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. Date:06/16/2004 Page:57 of 63 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. Date:06/16/2004 Page:58 of 63 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. Date:06/16/2004 Page:59 of 63 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. Date:06/16/2004 Page:60 of 63 INTENTIONALLY LEFT BLANK 6. INSTALLATION 6.1 BDA Installation & Gain Setup INSTALLATION 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. 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. Date:06/16/2004 Page:61 of 63 2 Plug the BDA into a 120 VAC single phase three wire grounded receptacle (5-15R). 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. LEDs) are illuminating a green color, the connection between the optical source and the BDA was successful. DOWNLINK 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, with a maximum FCC RF output limit of +30 dBm. Due to the various fiber optic link losses found in a communication system, the fiber optic gain must be adjusted so not to exceed the BDA FCC power limit. The equipment needed and the gain test setup required for this adjustment is shown in Figure 6.1 below. RF Cable Signal Generator Fiber Cable Fiber Optic Transceiver Chassis RF Cable Fiber Fed BDA Spectrum Analyzer +30 dBm -18 dBm Figure 6.1 Downlink Gain Test Configuration Using the signal generator, inject a –18 dBm signal into the downlink operating passband of the fiber fed BDA. Measure the output signal level of the fiber fed BDA using the spectrum analyzer. If the measured output signal level exceeds +30 dBm, reduce the fiber optic gain (i.e. adjust BDA’s fiber optic transceiver front panel potentiometer) so that the output power level is equal to +30 dBm. NOTE: No additional fiber gain adjustment will be required after the fiber optic gain has been set. If any additional gain adjustments are required they must be performed via the RS232 port. 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. Date:06/16/2004 Page:62 of 63 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. Due to the various fiber optic link losses found in a communication system, the uplink fiber optic gain must be adjusted so not to overdrive the fiber optic link when high power transmitters are operating near the BDA. The equipment needed and the gain test setup required for this adjustment is shown in Figure 6.2 below. RF Cable Signal Generator RF Cable Fiber Cable Fiber Fed BDA Fiber Optic Transceiver Chassis -43 dBm Spectrum Analyzer - 4 dBm Figure 6.2 Uplink Gain Test Configuration Using the signal generator, inject a – 43 dBm signal into the uplink operating passband of the fiber fed BDA. Measure the output signal level of the fiber optic transceiver chassis (i.e. located near the base receiver station) using the spectrum analyzer. If the measured output signal level exceeds – 4 dBm, reduce the fiber optic gain (i.e. adjust fiber optic transceiver front panel potentiometer) so that the output power level is equal to - 4 dBm. NOTE: No additional fiber gain adjustment will be required after the fiber optic gain has been set. If any additional gain adjustments are required they must be performed via the RS232 port. 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. Date:06/16/2004 Page:63 of 63 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. 7.2 BDA Troubleshooting Procedure FAULT No Downlink Signal No Uplink Signal Low FF BDA Downlink Gain (Gain Set: 48 dB) Low RF BDA Downlink Gain (Gain Set: 48 dB) Low FF BDA Uplink Gain (Gain Set: 48 dB) Low RF BDA Uplink Gain (Gain Set: 48 dB) 7.3 Troubleshooting Procedure -Verify BDA power is switched “ON”. -Check fiber fed BDA cable connections. -Check RF fed BDA cable connections. -Verify fiber fed BDA Rx fiber port LED is green. -Check Radio Transmitter at base station. -Verify BDA power is switched “ON”. -Check fiber fed BDA cable connections. -Check RF fed BDA cable connections. -Check fiber optic connection at base station Fiber Optic Transceiver Chassis. -Check for output signal at Fiber Optic Transceiver Chassis located at the base station. -Using a Signal Generator, inject a –18 dBm signal at base fiber optic transceiver and measure output power level of BDA with Spectrum Analyzer (+30 dBm). -Using a Signal Generator, inject a – 18 dBm signal in the base station port of the BDA and measure the output power level of BDA with Spectrum Analyzer (+30 dBm). -Using a Signal Generator, inject a – 43 dBm signal at the BDA antenna port and measure the output power level at the Fiber Optic Transciever Chassis at the base station port using the Spectrum Analyzer (- 4 dBm). -Using a Signal Generator, inject a – 43 dBm signal at the BDA antenna port and measure the output power level at the BDA base station port using the Spectrum Analyzer (+ 5 dBm). Tools & Test Equipment 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. Date:06/16/2004 Page:64 of 63 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: 7.4 100kHz to 2GHz 30MHz to 2GHz 20dB, 10W, DC-2GHz, (N male – N female) Universal Volt-Watts N male – N male, 2M long RG214 SMA male – N male, 1m long RG223 Philips tip screwdriver SMA torque wrench Module Care The EOCell Amplifier module, Fiber Optic Transceiver module +48V Power Supply module and optional Alarm module contain semiconductor devices that are susceptible to damage from electrostatic discharge (ESD). Correct handling of modules is mandatory to ensure long-term reliability. Furthermore, to prevent electrical damage to modules during the removal or installation process, disconnect the BDA from the AC power source. 7.4.1 Module Removal 1 Verify that AC power to the BDA has been removed. 2 Disconnect the system RF or fiber optic cable as required. 3 Loosen the module’s top and bottom wedge locks using a 9/64”allen wrench. (Not Applicable for Duplexer Module). 4 Loosen the module’s front plate screws. 5 Slowly but firmly, pull the module straight out of the chassis. Take care not to twist or turn the module during withdrawal. The RF connectors on the rear of the module are easily damaged if handled carelessly. 7.4.2 Module Installation Verify that AC power to the BDA has been removed. Carefully align module into its location and then slowly push the module directly straight fully into its position. Take care not to twist or turn module during installation. Fasten front plate module screws. Tighten module top and bottom wedge locks using a 9/64” allen wrench. (Not Applicable for Duplexer Module). Verify all modules are connected prior to applying AC power. Connect the system RF and Fiber Optic cables to BDA. 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. Date:06/16/2004 Page:65 of 63 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. Take care not to twist or turn the module during withdrawal. The RF connectors on the rear of the module are easily damaged if handled carelessly. 7.4.4 Alarm Module Installation (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 Carefully align module into its location and then slowly push the module directly straight fully into its position. Take care not to twist or turn module during installation. 4 Fasten the module front plate screws. 5 Tighten the module top and bottom wedge locks using a 9/64” allen wrench. 6 Reinstall the blank front plate right of the Alarm module. 7 Verify module connections have been made prior to connecting AC power. Reconnect the system RF and fiber optic cables. 7.4.5 Module Transportation To maintain the operation, performance and reliability of each module they must be stored and transported properly. Exercise caution when handling the modules, if the units are dropped or knocked the sensitive internal components can become damaged and the duplexer modules can become misaligned. Any active module not installed in a BDA must be kept in an anti-static bag or container. Any module sent back to Andrew Corporation for investigation/repair must be shipped in a anti-static container. Please contact Andrew Corporation quality department before returning a module. 7.4.6 BDA Connections 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. Date:06/16/2004 Page:66 of 63 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. In the event that the connector center pin needs cleaning, use only high quality lens-grade tissue, moistened with isopropyl alcohol. 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. Date:06/16/2004 Page:67 of 63
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