PBE Europe as Axell Wireless 55-1991SERIES 55-199102 Cell Enhancer User Manual Handbook 55 199102HBKM
Axell Wireless 55-199102 Cell Enhancer Handbook 55 199102HBKM
Manual
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| Document ID | 858859 |
| Application ID | QgBp9tD3GlyaLB16We0NPA== |
| Document Description | Manual |
| Short Term Confidential | No |
| Permanent Confidential | No |
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| Document Type | User Manual |
| Display Format | Adobe Acrobat PDF - pdf |
| Filesize | 204.56kB (2557025 bits) |
| Date Submitted | 2007-10-24 00:00:00 |
| Date Available | 2007-10-24 00:00:00 |
| Creation Date | 2007-10-05 14:04:21 |
| Producing Software | Acrobat Distiller 7.0 (Windows) |
| Document Lastmod | 2007-10-05 14:06:29 |
| Document Title | Handbook 55-199102HBKM |
| Document Creator | Acrobat PDFMaker 7.0 for Word |
| Document Author: | Aerial Facilities Limited |
UHF Bandselective Bi-Directional Amplifier 90dB 40/5W User/Maintenance Handbook For Pacific Wireless Communications L.L.C. AFL Works Order AFL Product Part No. Aerial Facilities Limited Technical Literature Document Number 55-199102HBKM Q116107 55-199102 UHF Bandselective BDA 90dB 40/5W Issue No. 1 Date 05/10/2007 Page 1 of 28 Table of Contents 1. INTRODUCTION.......................................................................................................................... 3 1.1. Scope and Purpose of Document ............................................................................................. 3 1.2. Limitation of Liability Notice ...................................................................................................... 3 2. SAFETY CONSIDERATIONS...................................................................................................... 4 2.1. Earthing of Equipment .............................................................................................................. 4 2.2. Electric Shock Hazard............................................................................................................... 4 2.3. RF Radiation Hazard ................................................................................................................ 4 2.4. Lifting and other Health and Safety Recommendations............................................................ 4 2.5. Chemical Hazard ...................................................................................................................... 5 2.6. Laser safety .............................................................................................................................. 5 2.7. Emergency Contact Numbers................................................................................................... 5 3. EQUIPMENT OVERVIEW............................................................................................................ 6 3.1. UHF Bandselective, BDA (55-199102) List of major sub modules ........................................... 7 3.2. UHF Bandselective, BDA (55-199102) Specification................................................................ 7 3.3. UHF Bandselective, BDA (55-199102) System Schematic.......................................................... 8 3.4. Photographs.............................................................................................................................. 9 3.4.1. Front of case – door closed................................................................................................ 9 3.4.2. Front of case – door open ................................................................................................ 10 3.4.3. Right Hand and Left Hand sides ...................................................................................... 11 4. UHF BANDSELECTIVE, BDA (55-199102) SUB MODULES................................................... 12 4.1. Bandpass Filter (02-010701) .................................................................................................. 12 4.2. 3dB Splitter/Combiner (05-002603) ........................................................................................ 13 4.3. Remote Attenuator Switch Assembly (‘10-001725’) ............................................................... 13 4.4. 5 Watt Tetra Amplifier (12-021601)......................................................................................... 14 4.5. Linearised Power Amplifier (12-026901)................................................................................. 15 4.6. Voltage Regulator Board 9.0V (13-001714)............................................................................ 16 4.7. DC/DC Converter, 24V in, 12V 8A out (13-003011) ............................................................... 16 4.8. Bi-Directional Amplifier (17-017301) ....................................................................................... 17 4.9. 12V (Single) Relay Board (80-008901)................................................................................... 18 4.10. 24V Switch-Mode PSU (96-300054).................................................................................... 18 5. INSTALLATION & COMMISIONING......................................................................................... 19 5.1. Antenna Installation & Gain Calculations................................................................................ 19 5.2. Initial Installation Record......................................................................................................... 19 6. FAULT FINDING / MAINTENANCE .......................................................................................... 20 6.1. Tools & Test Equipment.......................................................................................................... 20 6.2. Basic Fault Finding ................................................................................................................. 20 6.3. Quick Fault Checklist .............................................................................................................. 21 6.4. Downlink ................................................................................................................................. 21 6.5. Uplink ...................................................................................................................................... 21 6.6. Fault repair.............................................................................................................................. 21 6.7. Service Support ...................................................................................................................... 21 6.8. Care of Modules...................................................................................................................... 22 6.9. Module Removal (LNAs, general procedure):......................................................................... 22 6.10. Module Replacement (general): .......................................................................................... 22 6.11. Power Amplifiers.................................................................................................................. 22 6.12. Low Power Amplifier Replacement...................................................................................... 23 6.13. Module Transportation:........................................................................................................ 23 APPENDIX A ....................................................................................................................................... 24 A.1. Glossary of Terms used in this document ........................................................................... 24 A.2. Key to Drawing Symbols used in this document.................................................................. 25 A.3. EC Declaration of Conformity .............................................................................................. 26 A.4. Amendment List Record Sheet............................................................................................ 27 APPENDIX B ....................................................................................................................................... 28 Initial Equipment Set-Up Calculations............................................................................................... 28 UHF Bandselective BDA 90dB 40/5W Document Number 55-199102HBKM Issue No. 1 Page 2 of 28 1. INTRODUCTION 1.1. Scope and Purpose of Document This handbook is for use solely with the equipment identified by the Aerial Facilities Limited (AFL) Part Number shown on the front cover. It is not to be used with any other equipment unless specifically authorised by AFL. This is a controlled release document and, as such, becomes a part of Aerial Facilities’ Total Quality Management System. Alterations and modification may therefore only be performed by AFL. AFL recommends that the installer of this equipment familiarise themselves with the safety and installation procedures contained within this document before installation commences. The purpose of this handbook is to provide the user/maintainer with sufficient information to service and repair the equipment to the level agreed. Maintenance and adjustments to any deeper level must be performed by AFL, normally at the company’s repair facility in Chesham, England. This handbook has been prepared in accordance with BS 4884, and AFL’s Quality procedures, which maintain the company’s registration to BS EN ISO 9001:2000 and to the R&TTE Directive of the European Parliament. Copies of the relevant certificates and the company Quality Manual can be supplied on application to the Quality Manager. This document fulfils the relevant requirements of Article 6 of the R&TTE Directive. 1.2. Limitation of Liability Notice This manual is written for the use of technically competent operators/service persons. No liability is accepted by AFL for use or misuse of this manual, the information contained therein, or the consequences of any actions resulting from the use of the said information, including, but not limited to, descriptive, procedural, typographical, arithmetical, or listing errors. Furthermore, AFL does not warrant the absolute accuracy of the information contained within this manual, or its completeness, fitness for purpose, or scope. AFL has a policy of continuous product development and enhancement, and as such, reserves the right to amend, alter, update and generally change the contents, appearance and pertinence of this document without notice. All AFL products carry a twelve month warranty from date of shipment. The warranty is expressly on a return to base repair or exchange basis and the warranty cover does not extend to on-site repair or complete unit exchange. UHF Bandselective BDA 90dB 40/5W Document Number 55-199102HBKM Issue No. 1 Page 3 of 28 2. SAFETY CONSIDERATIONS 2.1. Earthing of Equipment Equipment supplied from the mains must be connected to grounded outlets and earthed in conformity with appropriate local, national and international electricity supply and safety regulations. 2.2. Electric Shock Hazard The risk of electrical shocks due to faulty mains driven power supplies whilst potentially ever present in any electrical equipment, would be minimised by adherence to good installation practice and thorough testing at the following stages: a) b) c) Original assembly. Commissioning. Regular intervals, thereafter. All test equipment must be in good working order prior to its use. High current power supplies can be dangerous because of the possibility of substantial arcing. Always switch off during disconnection and reconnection. 2.3. RF Radiation Hazard RF radiation, (especially at UHF frequencies) arising from transmitter outputs connected to AFL’s equipment, must be considered a safety hazard. This condition might only occur in the event of cable disconnection, or because a ‘spare’ output has been left un-terminated. Either of these conditions would impair the system’s efficiency. No investigation should be carried out until all RF power sources have been removed. This would always be a wise precaution, despite the severe mismatch between the impedance of an N type connector at 50Ω, and that of free space at 377Ω, which would severely mitigate against the efficient radiation of RF power. Radio frequency burns could also be a hazard, if any RF power carrying components were to be carelessly touched! Antenna positions should be chosen to comply with requirements (both local & statutory) regarding exposure of personnel to RF radiation. When connected to an antenna, the unit is capable of producing RF field strengths, which may exceed guideline safe values especially if used with antennas having appreciable gain. In this regard the use of directional antennas with backscreens and a strict site rule that personnel must remain behind the screen while the RF power is on, is strongly recommended. Where the equipment is used near power lines or in association with temporary masts not having lightning protection, the use of a safety earth connected to the case-earthing bolt is strongly advised. 2.4. Lifting and other Health and Safety Recommendations Certain items of AFL equipment are heavy and care should be taken when lifting them by hand. Ensure that a suitable number of personnel, appropriate lifting apparatus and appropriate personal protective equipment is used especially when installing Cell Enhancers above ground e.g. on a mast or pole. UHF Bandselective BDA 90dB 40/5W Document Number 55-199102HBKM Issue No. 1 Page 4 of 28 2.5. Chemical Hazard Beryllium Oxide, also known as Beryllium Monoxide, or Thermalox™, is sometimes used in devices within equipment produced by Aerial Facilities Ltd. Beryllium oxide dust can be toxic if inhaled, leading to chronic respiratory problems. It is harmless if ingested or by contact. Products that contain beryllium are load terminations (dummy loads) and some power amplifiers. These products can be identified by a yellow and black “skull and crossbones” danger symbol (shown above). They are marked as hazardous in line with international regulations, but pose no threat under normal circumstances. Only if a component containing beryllium oxide has suffered catastrophic failure, or exploded, will there be any danger of the formation of dust. Any dust that has been created will be contained within the equipment module as long as the module remains sealed. For this reason, any module carrying the yellow and black danger sign should not be opened. If the equipment is suspected of failure, or is at the end of its life-cycle, it must be returned to Aerial Facilities Ltd for disposal. To return such equipment, please contact the Quality Department, who will give you a Returned Materials Authorisation (RMA) number. Please quote this number on the packing documents, and on all correspondence relating to the shipment. PolyTetraFluoroEthylene, (P.T.F.E.) and P.T.F.E. Composite Materials Many modules/components in AFL equipment contain P.T.F.E. as part of the RF insulation barrier. This material should never be heated to the point where smoke or fumes are evolved. Any person feeling drowsy after coming into contact with P.T.F.E. especially dust or fumes should seek medical attention. 2.6. Laser safety General good working practices adapted from EN60825-2: 2004/ EC 60825-2:2004 Do not stare with unprotected eyes or with any unapproved optical device at the fibre ends or connector faces or point them at other people, Use only approved filtered or attenuating viewing aids. Any single or multiple fibre end or ends found not to be terminated (for example, matched, spliced) shall be individually or collectively covered when not being worked on. They shall not be readily visible and sharp ends shall not be exposed. When using test cords, the optical power source shall be the last connected and the first disconnected; use only approved methods for cleaning and preparing optical fibres and optical connectors. Always keep optical connectors covered to avoid physical damage and do not allow any dirt/foreign material ingress on the optical connector bulkheads. The optical fibre jumper cable maximum bend radius is 3cm; any smaller radii may result in optical cable breakage or excessive transmission losses. Caution: The FO units are NOT weather proof. 2.7. Emergency Contact Numbers The AFL Quality Department can be contacted on: Telephone +44 (0)1494 777000 Fax. +44 (0)1494 777002 e-mail qa@aerialfacilities.com UHF Bandselective BDA 90dB 40/5W Document Number 55-199102HBKM Issue No. 1 Page 5 of 28 3. EQUIPMENT OVERVIEW The AFL UHF Bandselective, Bi-Directional Amplifier (BDA) (55-199102) is a 2-way on-band repeater. The equipment is supplied in a four-point, wall-mounting, environmentally protected (IP65) aluminium alloy lockable case. All RF ports and connectors are also IP65 standard making the entire enclosure and connecting ports weatherproof. Handles are provided for carrying the unit and the door is fitted with locks. A supply isolator switch is fitted inside the unit and there are D.C. and Alarm On indicators on the outside of the door. The UHF Bandselective, BDA (55-199102) is a 2-port device for direct connection to two antennas, usually a highly directional Yagi or similar aligned towards the base (donor) site and an omnidirectional or leaky feeder antenna to cover the mobiles. The frequency bands that are passed by the BDA are set as per the specific customer requirements. Each active sub-module of the BDA carries its own volt-free, alarm relay contact interface which may be easily integrated into any such summary system. In addition to this, over temperature and door intrusion alarms are also fitted. The Uplink signal enters at the ‘Mobile’ port, passes through a bandpass filter (02-010701) tuned to the uplink band (415 - 418MHz) and then is amplified by the uplink path of Bi-Directional Amplifier (17-017301) before passing through a second bandpass filter (02-010701) The signal then passes through a second amplification stage (30dB gain 5Watt,), the signal then passes through a third bandpass filter (02-010701) before exiting the unit at the ‘Base’ port The Downlink signal enters at the ‘Base’ port and is passed through a bandpass filter (02-010701) tuned to the downlink band (406 - 409MHz), the signal then passes through the downlink path of BiDirectional Amplifier (17-017301) and a second bandpass filter (02-010701) before being split into two equal paths by 3dB Splitter/Combiner (05-002603). Each separate path is then passed through a further amplification stage, each path pasing through a Linearised Power Amplifier (12-026901). After exiting the amplifiers the two separate signals are recombined by a second 3dB Splitter/Combiner (05-002603) before passing through a third bandpass filter (02-010701) and then exiting the unit at the "mobile" port The uplink and the downlink paths are fitted with signal attenuators providing an attenuation range of 0 to 30 dB per path, adjustable in 2dB steps. The attenuators themselves are integral to the sub module Bi-Directional Amplifier (17-017301) and are controlled by toggle switches mounted inside the case of the Bandselective, BDA (55-199102) UHF Bandselective BDA 90dB 40/5W Document Number 55-199102HBKM Issue No. 1 Page 6 of 28 3.1. UHF Bandselective, BDA (55-199102) List of major sub modules Component Part 02-010701 05-002603 10-001725 12-021601 12-026901 13-001714 13-003011 17-017301 80-008901 96-300054 3.2. Component Part Description Bandpass FIlter 3dB Splitter/Combiner Remote Attenuator Switch Assembly 5 Watt Tetra Amplifier Linearised Power Amplifier Voltage Regulator DC/DC Converter Bi-Directional Amplifier 12V (Single) Relay Board 24V Switch-Mode PSU Qty Per Assembly UHF Bandselective, BDA (55-199102) Specification. Parameter Uplink Passband Downlink Passband gain Uplink Power Amplifier Downlink Passband Ripple I/P Return Loss Uplink 1dB Compression Downlink OIP3 Uplink Downlink Noise Figure In Band Spurious Noise 30kHz Bandwidth Uplink ALC Setting Switched Attenuator (U/L & D/L) Power Supply Current Rating Alarm Output Type AC Supply Voltage RF Connectors operation: Temperature range: storage: Case Size (excludes h/sinks handles etc.) UHF Bandselective BDA 90dB 40/5W Document Number 55-199102HBKM Issue No. 1 Specification 415 - 418MHz 406 - 409MHz 90dB 5 Watt 40 Watt <±1.5 dB > 14dB +35dB +45dB +48dBm +62dBm <4dB (max.gain) < -13 dBm (at 90dB gain) 1dB below 1dB Comp. 2 dB steps 2-30dB (± 1dB) 400W , 17A @ 24VD.C. Local Alarms 110V AC N type female -20°C to +60°C -40°C to +70° 620x420x250 mm Page 7 of 28 3.3. UHF Bandselective, BDA (55-199102) System Schematic Drawing Number: 55-199182 UHF Bandselective BDA 90dB 40/5W Document Number 55-199102HBKM Issue No. 1 Page 8 of 28 3.4. Photographs 3.4.1. Front of case – door closed Green LED “Power On” Red LED “Alarm” UHF Bandselective BDA 90dB 40/5W Document Number 55-199102HBKM Issue No. 1 Page 9 of 28 3.4.2. Front of case – door open Bandpass Filters (02-010701) Bandpass Filters (02-010701) Linearised Power Amplifier (12-026901) (Downlink) 24V Switch-Mode PSU (96-300054) Bi-Directional Amplifier (17-017301) Linearised Power Amplifier (12-026901) (Downlink) 5 Watt Tetra Amplifier (12-021601) (Uplink) 3dB Splitter/Combiner (05-002603) 3dB Splitter/Combiner (05-002603) Voltage Regulators (13-001714) DC/DC convertor (13-003011) Attenuator control switches, Uplink top row – Downlink bottom row Mains On/Off switch UHF Bandselective BDA 90dB 40/5W Document Number 55-199102HBKM Issue No. 1 Page 10 of 28 3.4.3. Right Hand and Left Hand sides Antenna Facing Mobile Port Alarm Output Earth Connection AC Input Antenna Facing Base Port UHF Bandselective BDA 90dB 40/5W Document Number 55-199102HBKM Issue No. 1 Page 11 of 28 4. UHF BANDSELECTIVE, BDA (55-199102) SUB MODULES 4.1. Bandpass Filter (02-010701) The bandpass filters are multi-section designs with a bandwidth dependent upon the passband frequencies, (both tuned to customer requirements). The response shape is basically Chebyshev with a passband design ripple of 0.1dB. The filters are of combline design, and are carefully aligned during manufacture in order to optimise the insertion loss, VSWR and intermodulation characteristics of the unit. The tuned elements are silver-plated to reduce surface ohmic losses and maintain a good VSWR figure and 50Ω load at the input and output ports. Being passive devices, the bandpass filters should have an extremely long operational life and require no maintenance. Should a filter be suspect, it is usually most time efficient to replace the module rather than attempt repair or re-tuning. 02-010701 Specification PARAMETER Response type: SPECIFICATION Chebyshev 415 - 418MHz (uplink) Frequency range: 406 - 409MHz (downlink) Bandwidth: 3 MHz Number of sections: Insertion loss: 1.7 dB (typical) VSWR: better than 1.2:1 Connectors: SMA Power Handling: 100W max operation: -20°C to +60°C Temperature range storage: -40°C to +70°C Weight: 3 kg (typical) UHF Bandselective BDA 90dB 40/5W Document Number 55-199102HBKM Issue No. 1 Page 12 of 28 4.2. 3dB Splitter/Combiner (05-002603) The 3dB Splitter/Combiner (05-002603) is a device for accurately matching two RF signals to a single port or splitting an RF signal to two ports whilst maintaining an accurate 50 Ω load to all inputs/outputs and ensuring that the VSWR and insertion losses are kept to a minimum. 05-002603 Specification PARAMETER Frequency range: Bandwidth: As Combiner Ports As Splitter Insertion loss: Isolation: Return Loss (VSWR) – Input: Return Loss (VSWR) – Output: Impedance: Power Rating – Combiner: Power Rating – Splitter: Connectors: Size: Weight: 4.3. SPECIFICATION 380 - 520 MHz 140 MHz 2 inputs 1 output 1 input 2 outputs 3.5 dB (typical) >18 dB Better than 1.3:1 Better than 1.3:1 50 Ω 0.5 Watt 20 Watts SMA female 54 x 44 x 21 mm 200 gm (approximately) Remote Attenuator Switch Assembly (‘10-001725’) The remote attenuator switch assembly is used to control the amount of signal attenuation in the submodule, Bi-Directional Amplifier (17-017301). The switch assembly is mounted on the inside of the Bandselective BDA (55-199102) case and consists of four miniature toggle switches, one row for uplink and one row for downlink, built around the remote attenuator switch PCB (10-001725) The switch assembly allows attenuation settings from 0 – 30dB in 2 dB steps The attenuation is simply set using the four miniature toggle switches. Each switch is clearly marked with the attenuation it provides, and the total attenuation in line is the sum of the values switched in. The attenuators that the switches control are integral to sub-module Bi-Directional Amplifier (17-017301). UHF Bandselective BDA 90dB 40/5W Document Number 55-199102HBKM Issue No. 1 Page 13 of 28 4.4. 5 Watt Tetra Amplifier (12-021601) The power amplifier fitted to this unit is a multi-stage, solid state power amplifier. Class A circuitry is employed throughout the device to ensure excellent linearity over a wide dynamic frequency range. All the semi-conductor devices are very conservatively rated to ensure low device junction temperatures and a long, trouble free working lifetime. The power amplifier should require no maintenance over its operating life. Under no circumstances should the cover be removed or the side adjustments disturbed unless it is certain that the amplifier has failed; since it is critically aligned during manufacture and any re-alignment will require extensive test equipment. The unit housing is an aluminium case (Iridite NCP finish) with SMA connectors for the RF input/output and a D-Type connector for the power supply and the Current Fault Alarm Function. 12-021601 Specification PARAMETER Frequency range: Bandwidth: Maximum RF output: Gain: 1dB compression point: 3rd order intercept point: VSWR: Connectors: Supply: Weight: operational: Temperature range: storage: SPECIFICATION 380-470MHz (as required) 10-40MHz (typical, tuned to spec.) >5Watts >30dB +37.5dBm +50dBm better than 1.5:1 SMA female 1.9Amps @ 12V DC 1kg (excluding heatsink) -10°C to +60°C -20°C to +70°C 7-Way Connector Pin-out details Connector Pin Signal A1 (large pin) +10-24V DC A2 (large pin) GND Alarm relay common TTL alarm/0V good Alarm relay contact (bad) Alarm relay contact (good) O/C good/0V bad (TTL) 7-Way Pin-Out Graphical Representation A1 UHF Bandselective BDA 90dB 40/5W Document Number 55-199102HBKM Issue No. 1 A2 Page 14 of 28 4.5. Linearised Power Amplifier (12-026901) The power amplifier fitted to (this unit) is a multi-stage, solid state power amplifier. Class A circuitry is employed throughout the device to ensure excellent linearity over a wide dynamic frequency range. All the semi-conductor devices are very conservatively rated to ensure low device junction temperatures and a long, trouble free working lifetime. The power amplifier should require no maintenance over its operating life. Under no circumstances should the cover be removed or the side adjustments disturbed unless it is certain that the amplifier has failed; since it is critically aligned during manufacture and any re-alignment will require extensive test equipment. The amplifier has a D-Type connector for the power supply and a Current Fault Alarm Function. 12-026901 Specification PARAMETER Frequency range: Bandwidth: Maximum RF output: Small signal gain: 1dB compression point: 3rd order intercept point: Noise figure: Return input loss: Return output loss: VSWR: RF Connectors: Supply: operation: Temperature range: storage: Weight: SPECIFICATION 380-440MHz (tuned to spec.) <60MHz (typical) >25Watt 37.5dB (typical) +44dBm +61dBm N/A >15dB >15dB better than 1.5:1 SMA female 4.6Amps @ 24V DC -10°C to +60°C -20°C to +70°C 1.5 kg 12-026901 7-Way Connector Pin-outs Connector Pin Signal A1 (large pin) +24V DC A2 (large pin) GND Alarm relay common TTL alarm/0V good Alarm relay contact (bad) Alarm relay contact (good) O/C good/0V bad (TTL) 7-Way Connector Graphical Representation A1 UHF Bandselective BDA 90dB 40/5W Document Number 55-199102HBKM Issue No. 1 A2 Page 15 of 28 4.6. Voltage Regulator Board 9.0V (13-001714) This unit it is used to derive a fixed voltage power supply rail from some higher voltage. In this instance it is used to derive 9V from a 12V input. The circuit is based upon a fixed voltage regulator, which is capable of supplying a maximum of 2.0 A output current. Note that at full output current the dissipation of the device must remain in limits, bearing in mind the voltage which is being dropped across it. The maximum allowable dissipation will also depend on the efficiency of the heatsink on which the device is mounted. 13-001714 Specification PARAMETER Operating voltage: Output voltages: Output current: Connections: Temperature operational: range: storage: PCB Size: 4.7. SPECIFICATION 12V DC 9.0V 2.0A (maximum per o/p) Screw Terminal Block -10°C to +60°C -20°C to +70°C 30.5 x 38.1mm DC/DC Converter, 24V in, 12V 8A out (13-003011) The DC/DC converter fitted is an AFL assembled, high power PCB unit with an 8 amp at 12V output capability. The circuit is basically an O.E.M semiconductor regulator (one side of which has a heatsink mounting plate, usually bolted to the casing of a Cell Enhancer) and smoothing components built onto a printed circuit board with screw block terminations. In event of failure this unit should not be repaired, only replaced. 13-003011 Specification PARAMETER Input Voltage range: Output voltage: Max. current load: Temperature operation: range: storage: Size(PCB): Weight (Loaded PCB): UHF Bandselective BDA 90dB 40/5W Document Number 55-199102HBKM Issue No. 1 SPECIFICATION 18-28V DC 12V±0.5V 8.0Amps -10°C to +60°C -20°C to +70°C 190 x 63mm 291gms Page 16 of 28 4.8. Bi-Directional Amplifier (17-017301) This module is a Bi-Directional Amplifier (up-link and down-link). All the amplifier stages are of balanced type and there is additionally digital attenuation, automatic level control (ALC) in the uplink path and also Current Fault Alarm Function circuitry, which indicates failure of each RF transistor in various ways – open collector, closed collector (TTL) and a relay to indicate the failure by voltage free change over contacts. The module is housed in an aluminium case (Iridite NCP finish) with SMA connectors for the RF input/output and a D-type connector for power supply and Current Fault Alarm Function. Specification 17-017301 PARAMETER SPECIFICATION Frequency Range MHz 380-430 Gain 64 - 66 dB Gain Flatness 2.0 dB ΔGain vs. Temp. 2.5 dB Max ALC dynamic Range ≥ 28 dB Min ALC o/p power level 29 ± 0.5 dBm Min Input Return Loss ≤ 15 dB Min Output Return Loss ≤ 18 dB Min P1dB ≥ 30 dBm Min OIP3 ≥ 41 dBm Min Noise Figure ≤ 1.7 dB Max DC Supply 9.0V ± 0.5 at 1120 mA Max Max RF Input +15dBm Storage temperature -40 to +100 ºC Operating temperature -20 to +70 ºC Dimensions 291.0 x 165.6 x 28.5 mm BDA ‘D’ Connector Pin-out details Connector pin Signal +ve input (9V) +ve input (9V) GND GND Alarm relay good Alarm relay common Alarm relay O/P bad Attenuator In Detector Out 10 Digital Attenuator Bit 1 11 Digital Attenuator Bit 2 12 Digital Attenuator Bit 3 13 Digital Attenuator Bit 4 14 Not Used 15 Not Used UHF Bandselective BDA 90dB 40/5W Document Number 55-199102HBKM Issue No. 1 15-Way Pin-Out Graphical Representation 10 11 12 13 14 15 Page 17 of 28 4.9. 12V (Single) Relay Board (80-008901) The General Purpose Relay Board allows the inversion of signals and the isolation of circuits. It is equipped with a single dual pole change-over relay RL1, with completely isolated wiring, accessed via a 15 way in-line connector. The relay is provided with polarity protection diodes and diodes for suppressing the transients caused by "flywheel effect" which can destroy switching transistors or induce spikes on neighbouring circuits. It’s common use is to amalgamate all the alarm signals into one, volts-free relay contact pair for the main alarm system. Specification 80-008901 PARAMETER SPECIFICATION Operating voltage: 8 to 30V (floating earth) Alarm threshold: Vcc - 1.20 volt +15% Alarm output relay contacts: Max. switch current: 1.0Amp Max. switch volts: 120Vdc/60VA Max. switch power: 24W/60VA Min. switch load: 10.0µA/10.0mV Relay isolation: 1.5kV Mechanical life: >2x107 operations Relay approval: BT type 56 Connector details: Screw terminals Temperature operational: -10°C to +60°C range storage: -20°C to +70°C 4.10. 24V Switch-Mode PSU (96-300054) The power supply unit is a switched-mode type capable of supplying 24V DC at 17.0Amps continuously. Equipment of this type typically requires approximately 10.0 Amps at 24V DC, so the PSU will be used conservatively ensuring a long operational lifetime. No routine maintenance of the PSU is required. If a fault is suspected, then the output voltage from the power supply may be measured on its output terminals. This is typically set to 24.5V using the multi-turn potentiometer mounted close to the DC output studs on the PSU PCB. All the PSUs used in AFL Cell Enhancers are capable of operation from either 110 or 220V nominal AC supplies. The line voltage is sensed automatically, so no adjustment or link setting is needed by the operator. 96-300054 Specification AC Input Supply Voltages: Frequency: DC Output Supply: Voltage: Maximum current: 110 or 220V nominal 90 to 132 or 180 to 264V (absolute limits) 47 to 63Hz 24V DC (nominal) 20 to 28V (absolute limits) 17A UHF Bandselective BDA 90dB 40/5W Document Number 55-199102HBKM Issue No. 1 Page 18 of 28 5. INSTALLATION & COMMISIONING 5.1. Antenna Installation & Gain Calculations Most Cell Enhancer require two antennas, one a highly directional Yagi or similar directed towards the donor cell base station, and one a leaky feeder, omni-directional antenna or Yagi to cover the area in which the mobiles are to be served. The maximum gain at which the Cell Enhancer can be set is limited by the isolation that can be achieved between these two antennas. Therefore when the antennas have been installed, inject a signal (at a known power level) into one of them and measure the signal level received by the other antenna on a spectrum analyser. The isolation can then be calculated as the difference between these two figures. The gain in each path of the Cell Enhancer should be set at least 10 dB below this figure, using attenuators as described below in paragraph 5. Also measure the received signal from the donor cell at the input to the Cell Enhancer (base port). The gain of the Cell Enhancer downlink path should be set such the donor site will not overload the Cell Enhancer amplifiers. It is recommended that the input level should be less than -50dBm at the input of the Cell Enhancer (Base Port). (This figure is assuming maximum gain, and may be increased by the value of the attenuator fitted in the downlink path.) Ensure that the mobile facing antenna has at least 70 dB isolation from the nearest mobile. (This is usually easily achieved when using a leaky feeder.) The Cell Enhancer gain is set by setting the attenuation in each path (uplink and downlink) between the first two amplifier stages (see markings within the Cell Enhancer or layout drawings for the exact attenuator locations). Note that the uplink (mobile to base) and downlink (base to mobile) path gains are set independently. This allows the paths to have different gains if required to set the correct output power levels. It is recommended that the gains are set such that the Downlink output levels from the Cell Enhancer are typically +44dBm. (Input level + Gain = Output level). 5.2. Initial Installation Record When this equipment is initially commissioned, please use the equipment set-up record sheet in Appendix B This will help both the installation personnel and AFL should these figures be needed for future reference or diagnosis. UHF Bandselective BDA 90dB 40/5W Document Number 55-199102HBKM Issue No. 1 Page 19 of 28 6. FAULT FINDING / MAINTENANCE 6.1. Tools & Test Equipment The minimum tools and test equipment needed to successfully service this AFL product are as follows:Spectrum analyser: Signal Generator: Attenuator: Test Antenna: Digital multi-meter: 100kHz to 2GHz (Dynamic range = 90dB). 30MHz to 2GHz (-120dBm to 0dBm o/p level). 20dB, 10W, DC-2GHz, (N male – N female). Yagi or dipole for operating frequency. Universal Volt-Ohm-Amp meter. Test cable x 2: N male – N male, 2M long RG214. Test cable x 2: SMA male – N male, 1m long RG223. Hand tools: Philips #1&2 tip screwdriver. 3mm flat bladed screwdriver. SMA spanner and torque setter. 6.2. Basic Fault Finding In the event that the performance of the system is suspect, a methodical and logical approach to the problem will reveal the cause of the difficulty. The System consists of modules in a wall-mounted enclosure. Transmissions from the main base stations are passed though the system to the mobile radio equipment; this could be a handheld radio or a transceiver in a vehicle. This path is referred to as the downlink. The return signal path from mobile radio equipment to the base station is referred to as the uplink. The first fault finding operation is to check the alarms of each of the active units and determine that the power supplies to the equipment are connected and active. This can be achieved remotely (via CEMS, the RS232 Coverage Enhancement Management System, if fitted), or locally with the front panel LEDs. The green LED on the front panel should be illuminated, while the red alarm indicator should be off. Note that passive only shelves will have no DC power or alarm indicators. If an Alarm is on, then that individual shelf must be isolated and individually tested against the original test specification. The individual amplifier units within any shelf have a green LED showing through a hole in their cover, which is illuminated if the unit is working correctly. (Without active power supplies there can be no alarm LED indicators, however without DC power, the fail-safe summary alarm system [normally closed relay contacts] will be an open circuit, thereby activating any externally connected system.) If an amplifier is suspect, check the DC power supply to the unit. If no other fault is apparent use a spectrum analyser to measure the incoming signal level at the input and then after reconnecting the amplifier input, measure the output level. Consult with the system diagram to determine the expected gain and compare result. In the event that there are no alarms on and all units appear to be functioning it will be necessary to test the system in a systematic manner to confirm correct operation. UHF Bandselective BDA 90dB 40/5W Document Number 55-199102HBKM Issue No. 1 Page 20 of 28 6.3. Quick Fault Checklist All AFL equipment is individually tested to specification prior to despatch. Failure of this type of equipment is not common. Experience has shown that a large number of fault conditions relating to installations result from simple causes often occurring as result of transportation, unpacking and installation. Below are listed some common problems which have resulted in poor performance or an indicated non-functioning of the equipment. Mains power not connected or not switched on. External connectors not fitted or incorrectly fitted. Internal connectors/ports becoming loose due to transport vibration. Wiring becoming detached as a result of heavy handling. Input signals not present due to faults in the aerial or feeder system. Base transmissions not present due to faults at the base station. Modems fitted with incorrect software configuration/and or PIN Nos. Changes to channel frequencies and inhibiting channels. Hand held radio equipment not correctly set to repeater channels. Hand held radio equipment not correctly configured to base station. 6.4. Downlink Confirm that there is a signal at the expected frequency and strength from the base station(s). If this is not present then the fault may lay outside the system. To confirm this, inject a downlink frequency signal from a known source at the BTS input and check for output at the antenna output port. If a signal is not received at the output it will be necessary to follow the downlink path through the system to find a point at which the signal is lost. 6.5. Uplink Testing etc. of the uplink paths is similar to the downlink paths, except for the frequencies involved. 6.6. Fault repair Once a faulty component has been identified, a decision must be made on the appropriate course to carry out a repair. A competent engineer can quickly remedy typical faults such as faulty connections or cables. The exceptions to this are cable assemblies connecting bandpass filter assemblies (duplexers) that are manufactured to critical lengths to maintain a 50-ohm system. Care should be taken when replacing cables or connectors to ensure that items are of the correct specification. The repair of component modules such as amplifiers and bandpass filters will not usually be possible in the field, as they frequently require specialist knowledge and test equipment to ensure correct operation. It is recommended that items of this type are replaced with a spare unit and the faulty unit returned to AFL for repair. Following the repair of any part of the system it is recommended that a full end-to-end test is carried out in accordance with the test specification and that the coverage is checked by survey. It is important to bear in mind that the system includes antennas and base stations that may be faulty or may have been damaged. 6.7. Service Support Advice and assistance with maintaining and servicing this system are available by contacting Aerial Facilities Ltd. see section 2.7. UHF Bandselective BDA 90dB 40/5W Document Number 55-199102HBKM Issue No. 1 Page 21 of 28 6.8. Care of Modules Many of the active modules contain semiconductor devices utilising MOS technology, which can be damaged by electrostatic discharge. Correct handling of such modules is mandatory to ensure their long-term reliability. Good engineering practices should be observed at all times. To prevent damage to a module, it must be withdrawn/inserted with care. 6.9. Module Removal (LNAs, general procedure): The following general rules should be followed to remove a module: 1) 2) 3) 4) Remove power to the unit Remove all connectors (RF, DC/alarm) Release module retaining screws. Slowly but firmly, pull the module straight out of its position. Take care not to twist/turn the module during withdrawal. 6.10. 1) 2) 3) 4) Module Replacement (general): Carefully align the module into its location then slowly push the module directly straight into its position, taking care not to twist/turn it during insertion. Reconnect all connectors, RF, alarm, power etc. Replace retaining screws (if any). Double-check all connections before applying power. 6.11. Power Amplifiers 1) Remove power to the unit. (Switch off at mains/battery) 2) Disconnect multi-way alarm ‘D’ type connector 3) Carefully disconnect the RF input and output coaxial connectors (usually SMA) 4) If the amplifier to be removed has a heatsink attached, there may be several different ways it can have been assembled. The most commonly used method, is screws through the front of the heatsink to threaded screw holes (or nuts and bolts), into the amplifier within the main case. If the heatsink is mounted on the rear of the main case (e.g., against a wall in the case of wall mounted enclosures), then the fixing method for the heatsink will be from within the case, (otherwise the enclosure would have to be removed from the wall in order to remove the heatsink). When the heatsink has been removed, the amplifier may be unscrewed from the main casing by its four corner fixings and gently withdrawn. Fitting a new power amplifier module will be the exact reverse of the above. Note: Do not forget to apply fresh heatsink compound to the heatsink/main case joint and also between the amplifier and the main case. UHF Bandselective BDA 90dB 40/5W Document Number 55-199102HBKM Issue No. 1 Page 22 of 28 5) If the amplifier to be removed has a heatsink attached, there may be several different ways it can have been assembled. The most commonly used method, is screws through the front of the heatsink to threaded screw holes (or nuts and bolts), into the amplifier within the main case. If the heatsink is mounted on the rear of the main case (e.g., against a wall in the case of wall mounted enclosures), then the fixing method for the heatsink will be from within the case, (otherwise the enclosure would have to be removed from the wall in order to remove the heatsink). When the heatsink has been removed, the amplifier may be unscrewed from the main casing by its four corner fixings and gently withdrawn. Fitting a new power amplifier module will be the exact reverse of the above. Note: Do not forget to apply fresh heatsink compound to the heatsink/main case joint and also between the amplifier and the main case. 6.12. Low Power Amplifier Replacement Disconnect the mains power supply and disconnect the 24V dc supply connector for the LPA. Disconnect the RF input and output cables from the LPA. Disconnect the alarm connector. Remove the alarm monitoring wires from (D type connector) pins 9 and 10. Remove the LPA module by removing the four retaining screws, replace with a new LPA module and secure it with the screws. Connect the RF cables to the LPA input and output connectors. Reconnect the wires to the alarm board connector pins 9 and 10. Reconnect the DC supply connector and turn the mains switch on. Note: Tighten SMA connectors using only a dedicated SMA torque spanner. If SMA connectors are over-tightened, irreparable damage will occur. . Do not use adjustable pliers to loosen/tighten SMA connectors. Also take care not to drop or knock the module as this can damage (or misalign in the case of tuned passive modules) sensitive internal components. Always store the modules in an environmentally friendly location Test equipment should always be used to verify the performance of any new module fitted to the system before broadcasting in the public domain. 6.13. Module Transportation: To maintain the operation, performance and reliability of any module it must be stored and transported correctly. Any module not installed in a whole system must be kept in an anti-static bag or container. Any module sent back to AFL for investigation/repair must be so protected. Please contact AFL’s quality department before returning a module, see section 2.7. UHF Bandselective BDA 90dB 40/5W Document Number 55-199102HBKM Issue No. 1 Page 23 of 28 APPENDIX A A.1. Glossary of Terms used in this document Repeater or Cell Enhancer Band Selective Repeater Channel Selective Repeater AC AGC BBU BTS CEMS C/NR DC Downlink (D/L) FO GND ID LED LNA LPA MOU M.S. MTBF N/A N/C OFR OIP3 P1dB PA RF RSA RX S/N TX Uplink (U/L) VSWR WDM A Radio Frequency (RF) amplifier which can simultaneously amplify and re-broadcast Mobile Station (MS) and Base Transceiver Station (BTS) signals. A Cell Enhancer designed for operation on a range of channels within a specified frequency band. A Cell Enhancer, designed for operation on specified channel(s) within a specified frequency band. Channel frequencies may be factory set or on-site programmable. Alternating Current Automatic Gain Control Battery Backup Unit Base Transceiver Station Coverage Enhanced Management System Carrier-to-Noise Ratio Direct Current RF signals TX from the BTS to the Master Site Fibre Optic Ground Identification Number Light Emitting Diode Low Noise Amplifier Low Power Amplifier Master Optical Unit Mobile Station Mean Time Between Failures Not Applicable No Connection On Frequency Repeater Output Third Order Intercept Point 1dB Compression Point Power Amplifier Radio Frequency Receiver/Splitter Amplifier Receiver Serial Number Transmitter RF signals transmitted from the MS to the BTS Voltage Standing Wave Ratio Wave division multiplex UHF Bandselective BDA 90dB 40/5W Document Number 55-199102HBKM Issue No. 1 Page 24 of 28 UHF Bandselective BDA 90dB 40/5W Document Number 55-199102HBKM Issue No. 1 Page 25 of 28 GD APPD 10/05/00 DATE RF ALL DIMENSIONS ARE IN mm UNLESS OTHERWISE STATED MB CHKD PL DRAWN RF FREQUENCY PROGRAMMING DATA B/W=30 to 200kHz HI IN LOW OUT R.S.A LEEKY FEEDER EARTH STUD HYBRID COMBINER ISOLATOR NOTCH FILTER CAVITY RESONATOR BAND PASS FILTER MISC CROSS BAND COUPLER DIRECTIONAL COUPLER Outputs to receivers IN IN COM COUPLED 10dB DIRECTIONAL COUPLER C10 6dB DIRECTIONAL COUPLER 6 dB DIRECTIONAL COUPLER C6 OUT 10dB COUPLER C10 COUPLERS NO DECIMAL PLACE ± 1mm ONE DECIMAL PLACE ± 0.3mm TWO DECIMAL PLACES ± 0.1mm TOLERANCES SCALE NTS THIS IS A PROPRIETARY DESIGN OF AERIAL FACILITIES LTD. REPRODUCTION OR USE OF THIS DESIGN BY OTHERS IS PERMISSIBLE ONLY IF EXPRESSLY AUTHORISED IN WRITING BY AERIAL FACILITIES LTD. FIBRE OPTIC CONNECTOR FC/APC PLUG SOCKET PLUG & SOCKET DEMODULATOR FIBRE-OPTIC FIBRE-OPTIC MODULATOR CHANNEL MODULE BASE TRANSCEIVER STATION TAPPER/COUPLER BTS EXPANSION HUB EH MISC FIBRE MAIN HUB HUBS FMH dB DC Outputs (up to 16 way) DC OUT FUSE DC TO DC CONVERTER AC TO DC PSU THIRD ANGLE PROJECTION ANTENNAS BSIC (BASIC SITE IDENTITY CODE) No 2B 2A 1A AA ISSUE TEXT CORRECTION ECN3165 BLADE ANTENNA ADDED ORIGINAL ISSUE DESCRIPTION -73 = BELOW ACCEPTABLE SIGNAL LEVEL(dBm) LEVEL (dBm) -72 = ACCEPTABLE SIGNAL -83 = BELOW ACCEPTABLE SIGNAL LEVEL(dBm) -82 = ACCEPTABLE SIGNAL LEVEL (dBm) 22 = BCCH (BROADCAST CONTROL CHANNEL) = READING POSITION SIGNAL KEY BLADE ANTENNA PANEL ANTENNA REMOTE ANTENNA UNIT ANTENNA DIRECTIONAL ANTENNA FLAT PLATE ANTENNA (MOUNTED AT HIGH LEVEL) YAGI ANTENNA OMNI ANTENNA 602 = RAU DRAWING.No DATE 28/07/04 26/01/04 21/06/00 23/05/00 STANDARD FOR ALL AIRPORTS BY PL PL PL PL STANDARD EXCEPT FOR AIRPORTS (SEE BELOW) 90-000001 AFL - STANDARD SYMBOLS CUSTOMER TITLE RELAY N.C. (FILLED CONTACT) Tel : 01494 777000 Fax : 01494 777002 MISC SPLITTER HYBRID SPLITTER N.O. (CLEAR CONTACT) COM IN OUT SPLITTERS Aerial Facilities Limited England LOCAL OSCILLATOR DUMMY LOAD BI-DIRECTIONAL AMPLIFIER (CELL ENHANCER) MODEM MONITORING CONTROLLER A.G.C ATTENUATOR (FIXED) ATTENUATOR (VARIABLE) AMPLIFIER MISC C0-AX CABLE 7/8" DIA C0-AX CABLE 1/2" DIA CAT 5 CABLE RADIATING CABLE JUMPER CABLE 1/2" 24/FIBRE OPTIC CABLE/LINK LOCAL OSCILLATOR MODEM 8/FIBRE OPTIC CABLE/LINK CABLES MONITORING CONTROLLER AGC dB dB A.2. Key to Drawing Symbols used in this document A.3. EC Declaration of Conformity Aerial Facilities Limited In accordance with BS EN ISO/IEC 17050-1&-2:2004 Aerial Facilities Limited Aerial House Asheridge Road Chesham Buckinghamshire HP5 2QD United Kingdom DECLARES, UNDER OUR SOLE RESPONSIBILITY THAT THE FOLLOWING PRODUCT: PRODUCT PART NO[S] 55-199102 PRODUCT DESCRIPTION UHF Bandselective Bi-Directional Amplifier IN ACCORDANCE WITH THE FOLLOWING DIRECTIVES: 1999/5/EC and The Radio & Telecommunications Terminal Equipment Directive Annex V its amending directives HAS BEEN DESIGNED AND MANUFACTURED TO THE FOLLOWING STANDARD[S] OR OTHER NORMATIVE DOCUMENT[S]: BS EN 60950 Information technology equipment. Safety. General requirements ETS EN 301 489-1 EMC standard for radio equipment and services. Part 1. Common technical requirements I hereby declare that the equipment named above has been designed to comply with the relevant sections of the above referenced specifications. The unit complies with all essential requirements of the Directives. SIGNED B S BARTON TECHNICAL DIRECTOR DATE: 01/10/2007 Registered Office: Aerial House, Asheridge Road, Chesham, Buckinghamshire, HP5 2QD England Registered No. 4042808 (England) www.aerialfacilities.com UHF Bandselective BDA 90dB 40/5W Document Number 55-199102HBKM Issue No. 1 Page 26 of 28 A.4. Amendment List Record Sheet Issue No. Date 26/09/2007 Incorporated by AJS 05/10/2007 AJS Page Nos. Amended Reason for new issue Draft First Issue Document Ref. 55-199102HBKM UHF Bandselective BDA 90dB 40/5W Document Number 55-199102HBKM Issue No. 1 Page 27 of 28 APPENDIX B Initial Equipment Set-Up Calculations General Information Site Name: Client Name: Date: AFL Equip. Model No. Antenna Systems Model Gain Azimuth Comments Type Loss Length Comments A - Service Antenna B – Donor Antenna C – Service Feeder D – Donor Feeder Initial Parameters E – CE Output Power F – Antenna Isolation G – Input signal level from donor BTS Operating Voltage Downlink Calculations Parameter Input signal level (G) CE max. o/p power (E) Gain setting Isolation required Service antenna gain (A) Service antenna feeder loss (C) Effective radiated power (ERP) Attenuator setting dBm dB dBm Comments Value dBm dBm dB dB dB dB dBm dB E-G (Gain + 10dB) E+A-C CE gain-gain setting If the input signal level in the uplink path is known and steady, use the following calculation table to determine the gain setting. If the CE features Automatic Gain Control the attenuator should be set to zero and if not, then the attenuation setting for both uplink and downlink should be similar. Uplink Calculations Parameter Input signal level CE max. o/p power (E) Gain setting Required isolation Donor antenna gain (B) Donor antenna feeder loss (D) Effective radiated power (ERP) Attenuator setting Comments Value dBm dBm dB dB dB dB dBm dB E+B-D (CE gain-gain setting) UHF Bandselective BDA 90dB 40/5W Document Number 55-199102HBKM Issue No. 1 Page 28 of 28
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