PBE Europe as Axell Wireless 50-0637SERIES UHF Signal Extender User Manual RECEIVER MULTICOUPLER
Axell Wireless UHF Signal Extender RECEIVER MULTICOUPLER
Handbook
Channelised Bi-Directional RF Amplifier Operation & Maintenance Manual For Dicarlo Associates, Inc. AFL product part Nō.: 50-063701 Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-1 of 51 Table of Contents AMENDMENT LIST RECORD SHEET ................................................................................................. 4 INTRODUCTION ....................................................................................................................................... 5 Scope...........................................................................................................................................................................5 Purpose.......................................................................................................................................................................5 Glossary of Terms .....................................................................................................................................................6 Key to AFL RF Module Drawing Symbols .............................................................................................................7 1. 1.1 1.2 1.3 1.4 2. 3. SAFETY CONSIDERATIONS ....................................................................................................... 8 Electric Shock Hazard .................................................................................................................................8 RF Radiation Hazard...................................................................................................................................8 Chemical Hazard..........................................................................................................................................9 Emergency Contact Numbers .....................................................................................................................9 OVERVIEW/SYSTEM DESCRIPTION ..................................................................................... 10 SPECIFICATION .......................................................................................................................... 13 3.1 50-063701 Parts Lists .................................................................................................................................13 3.1.1 UHF Duplex Shelf 50-063702 Parts List .................................................................................................13 3.1.2 Downlink UHF 5 Channel Shelf 50-063703 Parts List............................................................................14 3.1.3 Uplink UHF 4 Channel Shelf 50-063704 Parts List ................................................................................15 3.1.4 Leaky Feeder UHF Duplex/PA Shelf 50-063705 Parts List ....................................................................16 3.1.5 UHF Simplex Shelf 50-063706 Parts List ................................................................................................17 3.1.6 Power Supply Shelf 50-063707 Parts List................................................................................................18 3.2 Technical Specification ..............................................................................................................................19 3.2.1 Channel Module Frequencies ..................................................................................................................20 3.3 Mechanical Specification ...........................................................................................................................21 4. 4.1 4.2 4.3 4.3 4.4 4.5 4.6 4.7 5. SYSTEM DRAWINGS .................................................................................................................. 22 Drg. Nō. 50-063751, Channelised Cell Enhancer Rack Layout Drawing .............................................22 Drg. Nō. 50-063781, Channelised Cell Enhancer System Diagram .......................................................23 Drg. Nō. 50-063792, Base Side Duplex Shelf Outline Drawing ..............................................................24 Drg. Nō. 50-063793, Downlink Channels Shelf Outline Drawing ..........................................................25 Drg. Nō. 50-063794, Uplink Channels Shelf Outline Drawing...............................................................26 Drg. Nō. 50-063795, Tunnel Side Duplexer Shelf Outline Drawing ......................................................27 Drg. Nō. 50-063796, UHF Simplex Shelf Outline Drawing ....................................................................28 Drg. Nō. 50-063797, Power Supply Shelf Outline Drawing....................................................................29 SUB-UNIT MODULES .................................................................................................................. 30 5.1 UHF Duplex Shelf 50-063702 ....................................................................................................................30 5.1.1 Bandpass Filter (02-010701) ...................................................................................................................30 5.1.1.1 Description .......................................................................................................................................30 5.1.1.2 Technical Specification ....................................................................................................................30 5.1.2 3dB UHF Splitter (05-002603) ................................................................................................................31 5.1.2.1 Description .......................................................................................................................................31 5.1.2.2 Technical Specification ....................................................................................................................31 5.1.3 Ferrite Isolator (08-930003)....................................................................................................................32 5.1.3.1 Description .......................................................................................................................................32 5.1.4 ¼Watt 0- -30dB Switched Attenuator (10-000701)..................................................................................33 5.1.4.1 General Application ........................................................................................................................33 5.1.4.2 Switched Attenuators .......................................................................................................................33 5.1.5 Low Noise Amplifiers (11-006102, 11-007302 & 11-007402).................................................................34 5.1.5.1 Description .......................................................................................................................................34 5.1.5.2 Technical Specification, 11-007302.................................................................................................34 5.1.5.3 Technical Specification, 11-007402.................................................................................................35 5.1.5.4 Technical Specification, 11-006102.................................................................................................35 5.1.6 20W Power Amplifier (12-016301) ..........................................................................................................36 Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-2 of 51 5.1.6.1 Description .......................................................................................................................................36 5.1.6.2 Technical Specification ....................................................................................................................36 5.2 5 Channel UHF Downlink Shelf 50-063703 .............................................................................................37 5.2.1 3dB Splitter 905-002603) See section 5.1.2 .............................................................................................37 5.2.2 3 Way Splitter/Combiner (05-003803).....................................................................................................37 5.2.2.1 Description .......................................................................................................................................37 5.2.2.2 Technical Specification ....................................................................................................................37 5.2.3 Dual DC/DC Converter (13-001803) ......................................................................................................38 5.2.3.1 Description .......................................................................................................................................38 5.2.3.2 Technical Specification ....................................................................................................................38 5.2.4 Channel Selective Module (17-003006) ...................................................................................................39 5.2.4.1 Description .......................................................................................................................................39 5.2.4.2 Drg. Nō. 17-003080, Generic Channel Module Block Diagram......................................................40 5.2.5 12V Relay Board (20-001601) .................................................................................................................41 5.2.5.1 Description .......................................................................................................................................41 5.2.5.2 Technical Specification ....................................................................................................................41 5.3 UHF Uplink 4 Channel Shelf 50-063704 ..................................................................................................42 5.3.1 Four Way Splitter (05-003401) ................................................................................................................42 5.3.1.1 Description .......................................................................................................................................42 5.3.1.2 Technical Specification 05-003401..................................................................................................42 5.4 UHF Duplex/PA Shelf 50-063705..............................................................................................................42 5.5 UHF Simplex Channel Shelf 60-063706 ...................................................................................................43 5.5.1 Simplex Controller PCB (13-002811)......................................................................................................43 5.5.1.1 Description .......................................................................................................................................43 5.5.2 ALC Attenuator Module (17-001201) ......................................................................................................43 5.5.2.1 Description .......................................................................................................................................43 5.5.3 Simplex Squelch Controller PCB (17-002802) ........................................................................................43 5.5.3.1 Description .......................................................................................................................................43 5.6 Power Supply Shelf 50-063707..................................................................................................................44 5.6.1 24V, 400W Power Supply Pack (96-300054)...........................................................................................44 5.6.1.1 Description .......................................................................................................................................44 5.6.1.1 Technical Specification ....................................................................................................................44 6. 6.1 7. INSTALLATION............................................................................................................................ 45 Initial Installation Record .........................................................................................................................45 MAINTENANCE............................................................................................................................ 46 7.1 General Procedures....................................................................................................................................46 7.1.1 Fault Finding ...........................................................................................................................................46 7.1.2 Downlink ..................................................................................................................................................47 7.1.3 Uplink.......................................................................................................................................................47 7.1.4 Fault repair ..............................................................................................................................................47 7.1.5 Checking service ......................................................................................................................................48 7.1.6 Service Support ........................................................................................................................................48 7.2 Tools & Test Equipment............................................................................................................................48 7.3 Care of Modules .........................................................................................................................................49 7.3.1 General Comments...................................................................................................................................49 7.3.2 Module Removal (LNA’s, general procedure): ........................................................................................49 7.3.3 Module Replacement (general):...............................................................................................................49 7.3.4 Power Amplifiers......................................................................................................................................49 7.3.5 Low Power Amplifier Replacement..........................................................................................................50 7.3.6 Module Transportation: ...........................................................................................................................50 APPENDIX A INITIAL EQUIPMENT SET-UP CALCULATIONS............................................... 51 Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-3 of 51 AMENDMENT LIST RECORD SHEET Issue Nō. Date Page No.’s Amended Reason for new issue 29/09/2003 Incorporated by CMH 03/11/03 PLB Add FCC RF exposure Note 1st Issue Document Ref:-50-063708HBKM Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-4 of 51 INTRODUCTION Scope This handbook is for use solely with the equipment identified by the AFL Part Number shown on the front cover. It is not to be used with any other equipment unless specifically authorised by Aerial Facilities Limited. Purpose 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 ISO 9001: 1994 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. Limitation of Information 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 it’s 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. Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-5 of 51 Glossary of Terms Repeater or Cell Enhancer Band Selective Repeater Channel Selective Repeater BTS C/NR Downlink (D.L.) Uplink (U.L.) RSA EMC GND DC AC ID OIP3 LED M.S. N/A N/C NF RF Rx Tx S/N 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. Base Transceiver Station Carrier-to-Noise Ratio RF signals transmitted from the BTS and to the MS RF signals transmitted from the MS to the BTS Receiver/Splitter Amplifier Electromagnetic Compatibility Ground Direct Current Alternating Current Identification Number Output Third Order Intercept Point = RFout +(C/I)/2 Light Emitting Diode Mobile Station Not Applicable No Connection Noise Figure Radio Frequency Receiver Transmitter Serial Number Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-6 of 51 Key to AFL RF Module Drawing Symbols Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-7 of 51 1. 1.1 SAFETY CONSIDERATIONS Electric Shock Hazard Electrical shocks due to faulty mains driven power supplies. Whilst ever potentially present in any electrical equipment, such a condition would be minimised by quality installation practice and thorough testing at: a) Original assembly b) Commissioning c) Regular intervals, thereafter. All test equipment to 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. 1.2 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 unterminated. 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. IMPORTANT NOTE: To comply with FCC RF exposure compliance requirements, a separation distance of at least 20cm must be maintained between the leaky feeder attached to this device and all persons. Furthermore the gain of antennas attached must be chosen and located so as to satisfy the MPE categorical exclusion and co-location requirements. 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. Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-8 of 51 1.3 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. 1.4 Emergency Contact Numbers The AFL Quality Department can be contacted on: Telephone Fax e-mail +44 (0)1494 777000 +44 (0)1494 777002 qa@aerial.co.uk Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-9 of 51 2. OVERVIEW/SYSTEM DESCRIPTION The equipment covered in this manual is a UHF Bi-directional Amplifier (also known as a Repeater). Its main sphere of application is in urban areas where the topography is such that shadows occur in the propagation pattern (for example within large buildings, conference centres and tunnels, etc.) The Amplifier is a 4-port device for direct connection to two Base facing antennas, usually a highly directional Yagi or similar aligned towards the base (donor) site, and two radiating cable feeders to cover the mobiles. The channel frequencies passed by the Amplifier are set as per the specific customer requirements. In this instance, the channel module frequencies have been ‘hard-wired’ and so it is not possible to change frequencies without some reconfiguration of the channel programming. The system for which the Amplifier is to be used with is mainly duplex channel UHF radio system but with a single simplex channel. The duplex channels operate constantly in each direction using the Base Antenna port 2 and Radiating Cable port 2. There are five Downlink (Base Transmit) duplex channels and four Uplink (Base Receive) duplex channels. In addition there is the Uplink simplex (talkaround) channel operating via these ports. The Downlink simplex channel operates through the Base Antenna port 1 and Radiating Cable port 1 ports. This is to avoid any interaction between the common frequency channel high gain paths. Using separate antennas adds the isolation required for the simplex part of the Amplifier to work. The simplex channels are not constantly operating in their entirety. Instead, each simplex path has the output amplification disabled and when an input is detected in one path that amplifier will be switched on and the other path will be held off until that input signal has stopped. In this way, the simplex part of the system is constantly ready to pass the channel in either path. The Bi-directional Amplifier consists of six different 19” rack mount 4U chassis. These are a Base side Duplex/PA chassis (AFL part: 50-063702) to provide the link with Antenna 2 and the remainder of the system. In addition there is a Tunnel side Duplex/PA chassis (AFL part: 50-063705) to connect the Radiating cable 2 to the remainder of the system. The channel selectivity is made in the Downlink by a Downlink Channel chassis (AFL part: 50063703) and in the Uplink by the Uplink Channel chassis (AFL part: 50-063704). The Downlink simplex channel and part of the Uplink simplex channel circuit is housed in the Simplex chassis (AFL part: 50-063706) and there is a Power Supply chassis (AFL part: 50063707) to provide the DC supply to each of the five RF units. The Bi-directional Amplifier is housed in a single 38U 19” rack. All external connections are made towards the bottom of the rear of the rack suitable for cable entry via cable ducts through the open underside of the rack. External connections are for the 110V AC input, four ‘N’ type female RF connectors and a Krone block for the alarm output. Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-10 of 51 For better understanding of the system, the system diagram on page 23 should be consulted. Downlink path Duplex system signals in the Downlink path arriving at Base Antenna port 2 are first passed to the Base side chassis and so through a duplexed bandpass filter to ensure good input selectivity. This is then followed by a 31dB gain LNA to provide some amplification and a switchable attenuator then allows up to 30dB of gain adjustment in 2dB steps. From here signals are routed to the Downlink Channel chassis where a 2 way splitter is followed by two three way splitters to provide six equal paths. One of these is terminated with a 50ohm load and the remaining five each connect to a channel selectivity module. The Downlink channel modules offer 15dB gain and have ALC circuitry to limit the module output to -25dBm. This is ensure that the total output power may not become higher than the specified level. The channel module outputs are taken to two three way combiners for connection to a two way combiner which then routes signals out of the Downlink Channel chassis and to the Tunnel side chassis. The Downlink duplex channel frequencies factory set are: 457.050MHz 458.225MHz 457.850MHz 457.300MHz 457.775MHz In the Tunnel side chassis a 21dB gain LNA is then followed by a 15dB gain LPA to drive a 23dB gain 20Watt Power Amplifier which provides the final stage of amplification. The Power Amplifier is followed by a duplexed bandpass filter connecting to the Radiating cable port 2. The Downlink simplex channel, 452.850MHz, is received at Base Antenna port 1 and is passed through a bandpass filter to provide selectivity. A 31dB gain LNA then provides initial amplification and this is followed by a switchable attenuator giving up to 30dB of gain adjustment in 2dB steps. An ALC attenuator is then fitted for muting the input of the channel module when an Uplink path signal has been detected and is being amplified in that direction. The channel module following the attenuator has 15dB of gain and has ALC circuitry to limit the module output to -20dBm to limit the total output power to that specified in case of an increase in off-air signal input. The channel module is followed by a 31dB gain LNA and then a 15dB gain 1Watt LPA. A bandpass filter after the LPA connects to the Radiating cable port 1. Uplink path All Uplink channels enter the Bi-Directional Amplifier at Radiating Cable port 2 and pass to the Tunnel side chassis where a duplexed bandpass filter routes the signals to the Uplink input amplifier, a 31dB gain LNA. A switchable attenuator then gives up to 30dB of gain adjustment in 2dB steps before signals connect to the Uplink Channel chassis. In the Uplink Channel chassis, a 2 way splitter connects to two three way splitters to provide six equal paths. One of these is unused and so is terminated with a 50ohm load. Four of the remaining paths each connect to a channel selectivity module giving 15dB gain with an ALC limited maximum output of -23dBm. The four module outputs then connect to a four way combiner for routing to the Base side chassis. The last of the six paths is routed to the Simplex chassis which will be described later in this section. Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-11 of 51 The Uplink duplex channel frequencies are factory set: 452.050MHz 453.225MHz 452.300MHz 452.775MHz The four Uplink duplex channels arrive in the Base side chassis and pass through a 21dB gain then a 15dB gain LPA driver before a 23dB gain 20Watt Power Amplifier. There is an isolator fitted at the PA output to provide protection from the Uplink simplex channel path. A 2 way combiner then combines the four duplex channels with the simplex channel and a bandpass filter then connects to the Base Antenna port 2. In the Simplex chassis, the Uplink path from the Uplink Channel chassis is first routed through two ALC attenuators to mute the input to the Uplink channel selectivity module when a Downlink simplex signal is being passed in the other path. A channel selectivity module, set for 452.850MHz, then gives 25dB of gain and has an ALC level of -17dBm. The module is followed by a 31dB gain LNA and then a 15dB gain LPA with an isolator at the output to provide protection from the duplex path PA. The Uplink simplex signal then connects to the Mobile side chassis for routing to the 2 way combiner. The Power Supply Unit operates from an AC supply of 110V and has a 7.5Ampere circuit breaker to switch the chassis On or Off. A 15A filter then provides some protection against instabilities in the AC supply. There are two 400Watt PSU modules fitted and the outputs of these are distributed to six 24V DC output sockets at the rear of the Power Supply chassis. The RF connectors used for user interface are ‘N’ type female and interconnecting RF chassis connectors are SMA female. Each of the five RF chassis has a DC input fuse and the front panels have a green ‘Power ON’ LED and a red ‘ Alarm’ LED. The Power Supply chassis has a single green ‘Power ON’ front panel LED. Each chassis has a summary alarm output connecting to the Krone block at the lower rear of the rack for user interface. In addition, the 19” rack has intruder alarms fitted to the front and rear doors of the rack. The alarm outputs may be connected to singly or in parallel as a rack summary. The alarm outputs are voltage free dry contacts being Closed in normal operation and Open in an Alarm state. Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-12 of 51 3. SPECIFICATION 50-063701 Parts Lists 3.1 50-063702 50-063703 50-063704 50-063705 50-063706 50-063707 97-500033 97-500065 3.1.1 BASE ANT SIDE UHF DUPLEX/PA CHASSIS DOWNLINK UHF 5 CHANNEL CHASSIS UPLINK UHF 4 CHANNEL CHASSIS LCX SIDE UHF DUPLEX/PA CHASSIS UHF SIMPLEX CHANNEL CHASSIS POWER SUPPLY CHASSIS, 110V AC INPUT 38U RACK 38U 600 x 600mm RAL7035 EURORACK GND/EARTHING KIT Base Antenna Side UHF Duplex/PA Shelf 50-063702 Parts List 02-010701 05-002603 08-004905 10-000701 11-006102 11-007302 11-007402 12-016301 17-004327 17-004730 19-000826 19-001021 19-001024 80-063820 91-030002 91-130005 91-500001 91-600014 91-600015 91-600019 91-640004 91-660001 96-110021 96-110034 96-700034 96-700035 97-400002 5POLE UHF COMBLINE BANDPASS FILTER UHF 3dB SPLITTER SMA 25Watt 2 PORT ISOLATOR N 330-470MHz 1/4Watt 0-30dB SWITCHED ATTENUATOR LPA 380-500MHz 1Watt LNA. 380-500MHz 20dB LNA. 380-500MHz 30dB POWER AMPLIFIER 380-470MHz 20Watt CLASS A ATTENUATOR COVER ATTENUATOR MOUNTING 19" CHASSIS 400mm DEEP LID 4U 19" RACKMOUNT 400mm DEEP CHASSIS 4U 19" CHASSIS FRONT PANEL HEATSINK 20Watt PA N ADAPTOR PANEL FEMALE/FEMALE SMA BULKHEAD ADAPTOR FEMALE/FEMALE POWER PLUG 3 PIN PANEL MOUNT NC-X 'D' 9 WAY SOCKET (NON FILTERED) 'D' 9 WAY PLUG (NON FILTERED) 'D'15 WAY SHELL (2W7) LARGE PIN FOR 91-660001 D SOCKET 2W5 MIXED D TYPE SOCKET (7 WAY) T10A 0.25 x 1.25' FUSE CERAMIC FUSE HOLDER 16-30A, 32mm LED RED 5mm IP67 LED GREEN 5mm IP67 4U HANDLE [ALLOY] Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-13 of 51 3.1.2 Downlink UHF 5 Channel Shelf 50-063703 Parts List 05-002603 05-003803 13-001803 17-003012 19-000826 19-001021 19-001024 20-001601 91-130005 91-500001 91-600015 91-620001 93-930003 96-110001 96-110011 96-600002 96-600003 96-700034 96-700035 97-400002 UHF 3dB SPLITTER SMA 3 WAY SPLITTER, UHF DUAL DC/DC CONVERTER 24V-12V 1A CHANNEL MODULE 450MHz, 15kHz (8p) 19" CHASSIS 400mm DEEP LID 4U 19" RACK MOUNT 400mm DEEP CHASSIS 4U 19" CHASSIS FRONT PANEL 12V RELAY BOARD SMA BULKHEAD ADAPTOR FEMALE/FEMALE POWER PLUG 3 PIN PANEL MOUNT NC-X 'D' 9 WAY PLUG (NON FILTERED) 'D' 25 WAY SOCKET SMA 50ohm TERMINATION FUSE HOLDER 20 x 5mm6.3A T 4A A.SURGE FUSE 20mm INSULATING BOOT SMALL INSULATING BOOT D.C. LED RED 5mm IP67 LED GREEN 5mm IP67 4U HANDLE [ALLOY] Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-14 of 51 3.1.3 Uplink UHF 4 Channel Shelf 50-063704 Parts List 05-002603 05-003401 05-003803 13-001803 17-003012 19-000826 19-001021 19-001024 20-001601 91-130005 91-500001 91-600015 91-620001 93-930003 96-110001 96-110011 96-600002 96-600003 96-700034 96-700035 97-400002 UHF 3dB SPLITTER SMA 4 WAY SPLITTER LOW POWER 3 WAY SPLITTER, UHF DUAL DC/DC CONVERTER 24V-12V 1A CHANNEL MODULE 450MHz, 15kHz (8p) 19" CHASSIS 400mm DEEP LID 4U 19" CHASSIS 400mm DEEP CHASSIS 4U 19" CHASSIS FRONT PANEL 12V RELAY BOARD SMA BULKHEAD ADAPTOR FEMALE/FEMALE POWER PLUG 3 PIN PANEL MOUNT NC-X 'D' 9 WAY PLUG 'D' 25 WAY SOCKET SMA 50ohm TERMINATION FUSE HOLDER 20 x 5mm6.3A T 4A A.SURGE FUSE 20mm INSULATING BOOT SMALL INSULATING BOOT D.C. LED RED 5mm IP67 LED GREEN 5mm IP67 4U HANDLE [ALLOY] Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-15 of 51 3.1.4 Tunnel side UHF Duplex/PA Shelf 50-063705 Parts List 02-010701 10-000701 11-006102 11-007302 11-007402 12-016301 13-001803 17-004327 17-004730 19-000826 19-001021 19-001024 80-063820 91-030002 91-130005 91-500001 91-600014 91-600015 91-600019 91-640004 91-660001 96-110021 96-110034 96-700034 96-700035 97-400002 5POLE COMBLINE BANDPASS FILTER 1/4Watt 0-30dB SWITCHED ATTENUATOR LPA 380-500MHz 1Watt LNA. 380-500MHz 20dB LNA. 380-500MHz 30dB POWER AMPLIFIER 380-470MHz 20Watt CLASS A DUAL DC/DC CONVERTER 24V-12V 1A ATTENUATOR COVER ATTENUATOR MOUNTING 19" CHASSIS 400mm DEEP LID 4U 19" RACK MOUNT 400mm DEEP CHASSIS 4U 19" CHASSIS FRONT PANEL HEATSINK 20Watt PA N ADAPTOR PANEL FEMALE/FEMALE SMA BULKHEAD ADAPTOR FEMALE/FEMALE POWER PLUG 3 PIN PANEL MOUNT NC-X 'D' 9 WAY SOCKET (NON FILTERED) 'D' 9 WAY PLUG (NON FILTERED) 'D'15 WAY SHELL (2W7) LARGE PIN FOR 91-660001 D SOCKET 2W5 MIXED D TYPE SOCKET (7 WAY) T10A 0.25 x 1.25' FUSE CERAMIC FUSE HOLDER 16-30A, 32mm LED RED 5mm IP67 LED GREEN 5mm IP67 4U HANDLE [ALLOY] Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-16 of 51 3.1.5 UHF Simplex Shelf 50-063706 Parts List 02-010701 08-930003 10-000701 11-006102 11-007402 13-001803 13-002811 17-001201 17-002802 17-004327 17-004730 17-010802 19-000826 19-001021 19-001024 20-001601 91-030002 91-130005 91-500001 91-600014 91-600015 91-620001 96-110034 96-700034 96-700035 97-400002 5POLE COMBLINE BANDPASS FILTER 2 PORT ISOLATOR 360-470MHz SMA 1/4Watt 0-30dB SWITCHED ATTENUATOR LNA 380-500MHz 1Watt LNA. 380-500MHz 30dB DUAL DC/DC CONVERTER 24V-12V 1A SIMPLEX CONTROLLER ALC ATTENUATOR SIMPLEX RX/SQUELCH & AF ATTENUATOR COVER ATTENUATOR MOUNTING CHANNEL MODULE 450MHz 8p 15kHz BW + IF OUT 19" CHASSIS 400mm DEEP LID 4U 19" RACK MOUNT 400mm DEEP CHASSIS 4U 19" CHASSIS FRONT PANEL 12V RELAY BOARD N ADAPTOR PANEL FEMALE/FEMALE SMA BULKHEAD ADAPTOR FEMALE/FEMALE POWER PLUG 3 PIN PANEL MOUNT NC-X 'D' 9 WAY SOCKET (NON FILTERED) 'D' 9 WAY PLUG (NON FILTERED) 'D' 25 WAY SOCKET FUSE HOLDER 16-30A, 32mm LED RED 5mm IP67 LED GREEN 5mm IP67 4U HANDLE [ALLOY] Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-17 of 51 3.1.6 Power Supply Shelf 50-063707 Parts List 80-008902 80-008920 80-008921 80-008922 80-008925 91-510004 91-510035 91-520001 91-520005 91-520010 91-520032 91-600015 91-700017 91-700062 91-800015 91-800016 91-800017 91-800031 92-900014 96-300054 96-500005 96-500009 96-600001 96-700034 96-700035 24V RELAY PCB ASSEMBLY DUAL PSU HEATSINK DUAL PSU CASE DUAL PSU LID DUAL PSU FRONT PANEL 3 PIN PANEL MOUNT SOCKET NC-X 3 WAY MATE N LOK PLUG HOUSING POWER MAINS INLET FIXED MAINS LEAD (IEC) MAINS RETAINING CLIP MATE N LOK SOCKET CONTACT 20/14 AWG 'D' 9 WAY PLUG (NON FILTERED) ICD 15 WAY 0.1' CONNECTOR 6 WAY 0.1' CONNECTOR TRIPLE DECK TERMINAL BLOCK TRIPLE DECK TERMINAL JUMPER TRIPLE DECK TERMINAL END SYMETRIC 35 x 7.5mm DIN RAIL DIN RAIL (TOP HAT) EARTH CLAMP M5 24V 17A PSU 400W (XP BCC) DC INPUT FILTERS SURGE FILTER, 15A, 110V, DIN RAIL INSULATING BOOT LARGE LED RED 5mm IP67 LED GREEN 5mm IP67 Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-18 of 51 3.2 Technical Specification PARAMETER SPECIFICATION Frequency range: 457.0-458.5MHz (Downlink) + 452.850MHz 452.0-453.5MHz (Uplink) Bandwidth: 1.5MHz Gain: 80dB (70dB +/- 10dB) Gain Adjustment: 0 - 30dB (in 2dB steps) Channel Bandwidth: 15kHz Channel Selectivity: > 20dBc at +/-12.5kHz Uplink Power output: +23dBm per channel Downlink Power output: +23dBm per channel OIP3: Uplink +50dBm Downlink +54dBm In-band Spurious Noise Figure: <-36dBm (30kHz B/W) ALC: Fitted in each channel module VSWR: better than 1.5:1 RF Connectors: N type, female Temperature range: operational: -30°C to +60°C storage: -40°C to +70°C PSU Chassis Tunnel side Chassis Base side Chassis Summary alarm: Simplex Chassis (volt-free contacts at Krone block) Downlink Channels Chassis Uplink Channels Chassis Rack Doors Open Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-19 of 51 3.2.1 Channel Module Frequencies Frequency (MHz) 457.050 (Downlink) 457.300 (Downlink) 457.775 (Downlink) 457.850 (Downlink) 458.225 (Downlink) 452.050 (Uplink) 452.300 (Uplink) 457.775 (Uplink) 453.225 (Uplink) Frequency (MHz) 452.850(Uplink) 452.850(Downlink) 17-003012 Duplex Channel Modules Bandwidth Gain ALC 15kHz 15dB -25dBm 15kHz 15dB -25dBm 15kHz 15dB -25dBm 15kHz 15dB -25dBm 15kHz 15dB -25dBm 15kHz 15dB -23dBm 15kHz 15dB -23dBm 15kHz 15dB -23dBm 15kHz 15dB -23dBm Qty. 17-010802 Simplex Channel Modules Bandwidth Gain ALC 15kHz 25dB -17dBm 15kHz 15dB -20dBm All with hardwired frequency selection Qty. Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-20 of 51 3.3 Mechanical Specification PARAMETER Height: Width: Depth: Case (rack) size: operational: storage: Weight: Humidity: RF Connectors: Environmental Protection: Shelves: Finish: Heatsinks: Handles: Temperature Range: Supply Cable: SPECIFICATION 38U Eurorack (1U=44.5mm) 600mm 600mm -30°C to +60°C -40°C to +70°C >100kg* 10 – 90% non-condensing N type female IP40 Alocrom Black anodised Alloy Unit supplied with suitable supply input leads with connector and specified length of cable. Note: Individual shelf weights not specified. Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-21 of 51 4. SYSTEM DRAWINGS Drg. Nō. 50-063751, Channelised Cell Enhancer Rack Layout Drawing 4.1 FRONT BACK 50-063704 P OWE R A LA R M Aer a i l Facitil e is Lim ti ed 2U SPACE 50-063703 P OWE R A LA R M Aer a i l Facitil e is Lim ti ed 2U SPACE 50-063706 P OWE R A LA R M Aer a i l Facitil e is Lim ti ed 2U SPACE 50-063702 P OWE R A LA R M Aer a i l Facitil e is Lim ti ed 2U SPACE 50-063705 P OWE R A LA R M Aer a i l Facitil e is Lim ti ed 2U SPACE ON 50-063707 O FF Aer a i l Facitil e is Lim ti ed 4U SPACE LEAKY FEEDER 2 LEAKY FEEDER 1 RF INTERCONNECTION CABLES PRODUCTION ISSUE No THIRD ANGLE PROJECTION Tel : 01494 777000 Fax : 01494 777002 FOR 5 CHN UHF CHANNELISED CE 80dB CUSTOMER CHKD RB APPD BB DRAWING No SCALE 50-063751 1:10 Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM RACK INTERCONNECTION AND LAYOUT ALL DIMENSIONS ARE IN mm UNLESS OTHERWISE STATED NO DECIMAL PLACE ± 1mm ONE DECIMAL PLACE ± 0.3mm TWO DECIMAL PLACES ± 0.1mm 23/09/03 BY Aerial Facilities Limited TOLERANCES MNR MNR DAT E ISSUE TITLE DATE 23/09/03 DESCRIPT ION 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. DRAWN BASE PORT 1 1A ALARM OUTPUT BASE PORT 2 Issue No:-2 Date:-03/11/2003 Page:-22 of 51 Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 User/Maintenance Handbook Denver Channelised CE Page:-23 of 51 THIRD ANGL E PROJECTION ANT FACING BASE 1 50-063706 UHF SIMPLEX CHASSIS,4U ANT FACING BASE 2 DE S CRIP TI ON PRODUCTION ISSUE No ADDING TEXT 1A IS S UE LNA 31dB GAIN 11-007402 SPLITTER 05-002603 LNA 31dB GAIN 11-007402 1B BANDPASS FILTER 451.5-453MHz 02-010701 BANDPASS FILTER 452-453.5MHz 02-010701 50-063702 BASE SIDE DUPLEX/PA CHASSIS,4U BANDPASS FILTER 457-458.5MHz 02-010701 SPLITTER 05-002603 DA TE 30/07/03 23/09/03 MNR BY MNR CHK D APPD 457. 300MH z B / W=15kH z SQUELCH SQUELCH NO DE CIMA L P LA CE ± 1mm ONE DE CIMA L P LA CE ± 0. 3mm TWO DE CI MA L P LA CE S ± 0.1mm TOLE RA NCE S S CA LE dB GAIN 15dB ALC -20dBm 17-002802 dB AGC ATT. 17-001201 COMBINER 05-002603 THIS IS A P ROP RIE TA RY DE S IGN OF A E RIA L FA CILITI E S LTD. RE P RODUCTION OR US E OF THI S DE S I GN B Y OTHE RS I S P E RMIS S IB LE ONLY I F E X P RE S S LY A UTHORIS E D I N WRITI NG B Y A E RI A L FA CI LI TI E S LTD. CHANNEL MODULE 17-010802 FRE QUE NCY P ROGRA MMING DA TA B / W=15kH z 452. 850MH z 2 x SIMPLEX CONTROLLER 13-002811 GAIN 25dB ALC -17dBm FRE QUE NCY P ROGRA MMING DA TA 17-002802 PB 452. 850MH z B / W=15kH z AGC ATT. 17-001201 COMBINER 05-003803 COMBINER 05-003803 CHANNEL MODULE 17-010802 LNA 21dB GAIN 11-007302 FRE QUE NCY P ROGRA MMI NG DA TA B / W=15kH z 458. 225MH z FRE QUE NCY P ROGRA MMI NG DA TA B / W=15kH z 457. 850MH z GAIN 15dB ALC -25dBm FRE QUE NCY P ROGRA MMI NG DA TA B / W=15kH z 457. 775MH z FRE QUE NCY P ROGRA MMI NG DA TA 3 0/07 /03 DA TE 457. 050MH z B / W=15kH z FRE QUE NCY P ROGRA MMI NG DA TA A LL DIME NS IONS A RE IN mm UNLE S S OTHE RWIS E S TA TE D RB MNR AGC ATT. 17-001201 0-30dB ATTENUATOR 10-000701 DRA WN dB dB 5 x CHANNEL MODULE 17-003012 LNA 31dB GAIN 11-007402 LPA 15dB GAIN 11-006102 SPLITTER 05-003803 SPLITTER 05-003803 LPA 15dB GAIN 11-006102 20W PA 23dB GAIN 12-016301 50-063703 DOWNLINK CHANNELS 4U ISOLATOR 08-004905 ISOLATOR 08-004905 dB 0-30dB ATTENUATOR 10-000701 LNA 31dB GAIN 11-007402 COMBINER 05-003401 LNA 21dB GAIN 11-007302 SPLITTER 05-003803 SPLITTER 05-003803 LPA 15dB GAIN 11-006102 Tel : 01494 777000 Fax : 01494 777002 England UNITS 24V DC OUTPUT TO SPLITTER 05-002603 50-063704 UPLINK CHANNELS 4U Aerial Facilities Limited LPA 15dB GAIN 11-006102 GAIN 15dB ALC -23dBm FRE QUE NCY P ROGRA MMING DA TA B / W=15kH z 453. 225MH z FRE QUE NCY P ROGRA MMING DA TA B / W=15kH z 452. 775MH z FRE QUE NCY P ROGRA MMING DA TA B / W=15kH z 452. 300MH z FRE QUE NCY P ROGRA MMING DA TA B / W=15kH z 452. 050MH z 4 x CHANNEL MODULE 17-003012 CUS TOME R TITLE 6 x DC FILTERS LNA 31dB GAIN 11-007402 400W PSU 400W PSU LEAKY FEEDER PORT 1 10 DRA WI NG No SYSTEM DIAGRAM 11 50-063781 LEAKY FEEDER PORT 2 12 12 50-063707 PSU CHASSIS 110V AC INPUT 50-063705 LCX SIDE DUPLEX/PA CHASSIS,4U 15A AC FILTER 96-500009 7.5A MCB 96-920045 BANDPASS FILTER 452-453.5MHz 02-010701 BANDPASS FILTER 457-458.5MHz 02-010701 11 5 CHN UHF CHANNELISED CE 80dB BANDPASS FILTER 451.5-453MHz 02-010701 dB 0-30dB ATTENUATOR 10-000701 20W PA 23dB GAIN 12-016301 10 4.2 Drg. Nō. 50-063781, Channelised Cell Enhancer System Diagram Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 CHKD User/Maintenance Handbook Denver Channelised CE Page:-24 of 51 APPD BB ALL DIMENSIONS ARE IN mm UNLESS OTHERWISE STATED RB A e ri a l F a c i l i t i e s L im i te d 22/09/03 DATE 177.50 482.60 NO DECIMAL PLACE ± 1mm ONE DECIMAL PLACE ± 0.3mm TWO DECIMAL PLACES ± 0.1mm TOLERANCES SCALE 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. POWER MNR DRAWN 1:4 THIRD ANGLE PROJECTION Tel : 01494 777000 Fax : 01494 777002 Aerial Facilities Limited England 400.00 443.00 1A A (SMA) ISSUE DESCRIPTION PRODUCTION ISSUE DRAWING.No OUTLINE DRAWING 50-063792 BASE SIDE DUPLEX/PA (4U CHASSIS) No PART No : 50-063702 DC INPUT FUSE T10A ALARM BASE 2 ('N'TYPE) 171.50 CUSTOMER TITLE B (SMA) C (SMA) DATE 22/09/03 BY MNR EARTH STUD ATTENUATOR SWITCHES 4.3 Drg. Nō. 50-063792, Base Side Duplex Shelf Outline Drawing ALARM Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 CHKD User/Maintenance Handbook Denver Channelised CE Page:-25 of 51 APPD BB ALL DIMENSIONS ARE IN mm UNLESS OTHERWISE STATED RB A e ri a l F a c i l i t i e s L im i te d 22/09/03 DATE 177.50 482.60 NO DECIMAL PLACE ± 1mm ONE DECIMAL PLACE ± 0.3mm TWO DECIMAL PLACES ± 0.1mm TOLERANCES SCALE 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. POWER MNR DRAWN 1:4 THIRD ANGLE PROJECTION Tel : 01494 777000 Fax : 01494 777002 Aerial Facilities Limited England 400.00 443.00 CUSTOMER TITLE 171.50 1A ISSUE DESCRIPTION PRODUCTION ISSUE DRAWING.No OUTLINE DRAWING 50-063793 DOWNLINK CHANNELS (4U CHASSIS) No PART No : 50-063703 ALARM FUSE T3.15A D (SMA) A (SMA) DATE 22/09/03 BY MNR DC INPUT EARTH STUD 4.3 Drg. Nō. 50-063793, Downlink Channels Shelf Outline Drawing ALARM Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 CHKD User/Maintenance Handbook Denver Channelised CE Page:-26 of 51 APPD BB ALL DIMENSIONS ARE IN mm UNLESS OTHERWISE STATED RB A e ri a l F a c i l i t i e s L im i te d 22/09/03 DATE 177.50 482.60 NO DECIMAL PLACE ± 1mm ONE DECIMAL PLACE ± 0.3mm TWO DECIMAL PLACES ± 0.1mm TOLERANCES SCALE 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. POWER MNR DRAWN 1:4 THIRD ANGLE PROJECTION Tel : 01494 777000 Fax : 01494 777002 Aerial Facilities Limited England 400.00 443.00 CUSTOMER TITLE 171.50 1A ISSUE DESCRIPTION PRODUCTION ISSUE DRAWING.No OUTLINE DRAWING 50-063794 UPLINK CHANNELS (4U CHASSIS) No PART No : 50-063704 ALARM FUSE T3.15A F (SMA) E (SMA) B (SMA) DATE 22/09/03 BY MNR DC INPUT EARTH STUD 4.4 Drg. Nō. 50-063794, Uplink Channels Shelf Outline Drawing ALARM Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 CHKD User/Maintenance Handbook Denver Channelised CE Page:-27 of 51 APPD BB ALL DIMENSIONS ARE IN mm UNLESS OTHERWISE STATED RB A e ri a l F a c i l i t i e s L im i te d 22/09/03 DATE 177.50 482.60 NO DECIMAL PLACE ± 1mm ONE DECIMAL PLACE ± 0.3mm TWO DECIMAL PLACES ± 0.1mm TOLERANCES SCALE 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. POWER MNR DRAWN 1:4 THIRD ANGLE PROJECTION Tel : 01494 777000 Fax : 01494 777002 Aerial Facilities Limited England 400.00 443.00 1A ISSUE DESCRIPTION PRODUCTION ISSUE DRAWING.No OUTLINE DRAWING 50-063795 TUNNEL SIDE DUPLEXER/PA (4U CHASSIS) No PART No : 50-063705 DC INPUT FUSE T10A ALARM LEAKY FEEDER ('N'TYPE) 171.50 CUSTOMER TITLE D (SMA) E (SMA) DATE 22/09/03 BY MNR EARTH STUD ATTENUATOR SWITCHES 4.5 Drg. Nō. 50-063795, Tunnel Side Duplexer Shelf Outline Drawing ALARM Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 CHKD User/Maintenance Handbook Denver Channelised CE Page:-28 of 51 APPD BB ALL DIMENSIONS ARE IN mm UNLESS OTHERWISE STATED RB A e ri a l F a c i l i t i e s L im i te d 22/09/03 DATE 177.50 482.60 NO DECIMAL PLACE ± 1mm ONE DECIMAL PLACE ± 0.3mm TWO DECIMAL PLACES ± 0.1mm TOLERANCES SCALE 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. POWER MNR DRAWN 1:4 THIRD ANGLE PROJECTION Tel : 01494 777000 Fax : 01494 777002 Aerial Facilities Limited England 400.00 443.00 CUSTOMER TITLE 171.50 1A DRAWING.No OUTLINE DRAWING 50-063796 ISSUE DESCRIPTION PRODUCTION ISSUE UHF SIMPLEX (4U CHASSIS) No PART No : 50-063706 ALARM FUSE T3.15A DATE 22/09/03 BY MNR DC INPUT BASE 1 ('N'TYPE) D (SMA) EARTH STUD LEAKY FEEDER ('N'TYPE) A (SMA) 4.6 Drg. Nō. 50-063796, UHF Simplex Shelf Outline Drawing ALARM Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 CHKD User/Maintenance Handbook Denver Channelised CE Page:-29 of 51 APPD BB ALL DIMENSIONS ARE IN mm UNLESS OTHERWISE STATED RB 22/09/03 DATE A e ri a l F a c i l i t i e s L im i te d MNR DRAWN 482.60 NO DECIMAL PLACE ± 1mm ONE DECIMAL PLACE ± 0.3mm TWO DECIMAL PLACES ± 0.1mm TOLERANCES SCALE 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. 177.50 1:4 Tel : 01494 777000 Fax : 01494 777002 171.50 TITLE CUSTOMER 350.00 430.00 THIRD ANGLE PROJECTION Aerial Facilities Limited England 350.00 393.00 ON ISSUE DESCRIPTION PRODUCTION ISSUE PART No : 50-063707 O FF DRAWING.No OUTLINE DRAWING 50-063797 POWER SUPPLY UNIT (4U CHASSIS) No 1A 24V DC OUTPUT MAINS TRIP SWITCH 110/125V AC INPUT DATE 22/09/03 ALARMS EARTH STUD BY MNR 4.7 Drg. Nō. 50-063797, Power Supply Shelf Outline Drawing 5. SUB-UNIT MODULES UHF Duplex Shelf 50-063702 5.1 5.1.1 Bandpass Filter (02-010701) 5.1.1.1 Description 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. 5.1.1.2 Technical Specification PARAMETER Response Type: SPECIFICATION Chebyshev 457.0-458.5MHz (Downlink) Frequency Range: 452.0-453.5MHz (Uplink) Bandwidth: 1.5 MHz Number of Sections: Insertion Loss: 1.7 dB (typical) VSWR: better than 1.2:1 Connectors: SMA Power Handling: 100W max operation: -30°C to +60°C Temperature range storage: -40°C to +70°C Weight: 3 kg (typical) Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-30 of 51 5.1.2 5.1.2.1 3dB UHF Splitter (05-002603) Description The 3dB Splitter/Combiner used is a device for accurately matching two or more RF signals to single or multiple ports, whilst maintaining an accurate 50Ω load to all inputs/outputs over the specified frequency range and ensuring that the VSWR and insertion losses are kept to a minimum. 5.1.2.2 Technical Specification PARAMETER Frequency Range: Bandwidth: Inputs: Outputs: Insertion Loss: Isolation: Return Loss (VSWR) – Input: Impedance: Power Rating – Splitter: Power Rating – Combiner: Connectors: Weight: SPECIFICATION 380 - 520 MHz 140 MHz 3.5 dB (typical) >18 dB Better than 1.3:1 50 ς 20 Watts 0.5 Watt SMA female 200 gm (approximately) Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-31 of 51 5.1.3 5.1.3.1 Ferrite Isolator (08-930003) Description The purpose of fitting an isolator to the output of a transmitter in a multi-transmitter environment is such that each output is afforded a degree of isolation from every other. Were this not to be the case, two simultaneous transmissions could interfere to create intermodulation products, especially in the non-linear power amplifier output stages of the transmitters. Whilst this effect would not affect the intelligibility of the two original transmissions, a further two new transmissions would be created which could themselves cause interference to third party users. In this case it is to isolate the duplex and simplex uplink power amplifiers from inter-modulating each other. A ferrite-isolator, (or junction circulator, as it is sometimes known) generally consists of several major components; for example a ferrite region, a magnetic circuit and matching circuitry which can form a three port isolator. The ferrite isolator is a ferro-magnetic device, which has directional properties. In the forward direction, RF arriving at the input is passed to the output with minimal attenuation. In the reverse direction, RF arriving at the output due to reflected power from a badly matched load, or due to coupling with another transmitter, is routed into an RF load where it is absorbed. The isolator therefore functions to prevent reflected RF energy reaching the power amplifier where it could cause intermodulation products or premature device failure. Ferrite materials form the active part of the junction in which the actual circulation signal flow occurs. When a signal encounters a ferrite disk (e.g. port l) biased with a magnetic field, it divides and part of the signal flows in a clockwise direction, while a portion of the signal travels in the counter-clockwise direction, each with a different velocity. The combined effects of the two rotating signals, create a standing wave around the perimeter of the ferrite disk. By choosing the proper value of the ferrite’s magnetisation and the magnetic field, the standing wave can be made to create a voltage null at port 3, such that no power is transferred to it and a peak voltage at port 2, transferring maximum power to it from port l. If a termination is placed on port 3 to absorb the signal flow in the reverse direction the device functions as an isolator. Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-32 of 51 5.1.4 5.1.4.1 ¼Watt 0- -30dB Switched Attenuator (10-000701) General Application In many practical applications for Cell Enhancers etc., the gain in each path is found to be excessive. Therefore, provision is made within the unit for the setting of attenuation in each path, to reduce the gain. 5.1.4.2 Switched Attenuators The AFL switched attenuators are available in two different types; 0 – 30dB in 2 dB steps (as in this case), or 0 – 15dB in 1 dB steps. The attenuation is simply set using the four miniature toggle switches on the top of each unit. Each switch is clearly marked with the attenuation it provides, and the total attenuation in line is the sum of the values switched in. They are designed to maintain an accurate 50Ω impedance over their operating frequency at both input and output. Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-33 of 51 5.1.5 5.1.5.1 Low Noise Amplifiers (11-006102, 11-007302 & 11-007402) Description The low noise amplifiers used are double stage solid-state low-noise amplifiers. 11006102 is a low noise amplifier with a 1Watt power device in its final stage, enabling it to be used as a driver for the 20W power amplifier. Class A circuitry is used in the units to ensure excellent linearity over a very wide dynamic range. The two active devices are very moderately rated to provide a long trouble-free working life. There are no adjustments on these amplifiers, and in the unlikely event of failure the entire amplifier should be replaced. 5.1.5.2 Technical Specification, 11-007302 PARAMETER Frequency range: Bandwidth: Gain: 1dB Compression Point: 3rd order intercept: Input/Output return loss: Noise figure: Connectors: Supply: operational: Temperature range: storage: Weight: Size: SPECIFICATION 380-500MHz <140MHz 20-22dB +23.5dB (typical) +36dB (typical) >20dB <1.3dB SMA female 200-230mA @ 24V DC -30°C to +60°C -30°C to +70°C <300gm 90 x 55 x 30.2mm (case only) Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-34 of 51 5.1.5.3 Technical Specification, 11-007402 PARAMETER Frequency range: Bandwidth: Gain: 1dB Compression Point: 3rd order intercept: Input/Output return loss: Noise figure: Connectors: Supply: Weight: Size: operation: Temperature range storage: 5.1.5.4 SPECIFICATION 380-500MHz <140MHz 30-32dB +22dBm (typical) +34-35dBm (typical) >20dB <1.3dB SMA female 300-330mA @ 24V DC <300gm 90 x 55 x 30.2mm (case only) -30°C to +60°C -40°C to +70° Technical Specification, 11-006102 Frequency range: Bandwidth: Gain: 1dB compression point: IP3: I/O return loss: Noise figure: Supply requirement: Consumption: operation: Temperature range storage: 380-500MHz <150MHz 15dB (typical) +31dBm +46dBm >18dB <1.3dB 10 – 24V, DC 510-540mA @ (10 – 24V) -30°C to +60°C -40°C to +70° Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-35 of 51 5.1.6 5.1.6.1 20W Power Amplifier (12-016301) Description This amplifier is a Class A 20W power amplifier from 380MHz to 470MHz in a 1 stage balanced configuration. It demonstrates a very high linearity and a very good input/output return loss. A built in a Current Fault Alarm Function monitors DC conditions to both transistor collectors and gives an alarm upon bias change. Its housing is a machined aluminium case (Alocrom 1200 finish) with SMA connectors for the RF input/output and a D-Type connector for the power supply and the Current Fault Alarm Function. 5.1.6.2 Technical Specification PARAMETER Frequency range: Small signal gain: Gain flatness: I/O Return loss: 1dB compression point: OIP3: Supply voltage: Supply current: Temperature range operational: storage: Weight: SPECIFICATION 380-470MHz 23dB ±1.7dB >18dB +43dBm +55dBm 24V DC 3.8Amps (typical) -30°C to +60°C -40°C to +70°C <2kg (no heatsink) Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-36 of 51 5.2 5 Channel UHF Downlink Shelf 50-063703 5.2.1 3dB Splitter 905-002603) See section 5.1.2 5.2.2 3 Way Splitter/Combiner (05-003803) 5.2.2.1 Description The 3 way Splitter/Combiner used is a ‘Zinger’ type design for accurately matching three RF signals to a single port, whilst maintaining an accurate balance between ports, and ensuring that the VSWR and insertion losses attain the best possible specification. They are specialist passive devices and must be replaced in the unlikely event of failure. 5.2.2.2 Technical Specification PARAMETER Frequency Range: Bandwidth: Inputs: Outputs: Insertion Loss: Isolation: Return Loss (VSWR) – Input: Return Loss (VSWR) – Output: Impedance: Power Rating – Splitter: Power Rating – Combiner: Connectors: Size: SPECIFICATION 380 - 520 MHz 140 MHz (typical) 5.2 dB (typical) >18 dB Better than 1.35:1 Better than 1.35:1 50 ς 20 Watts 0.5 Watt SMA female 54 x 44 x 21 mm (including connectors) Weight: 200 gm (approximately) Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-37 of 51 5.2.3 5.2.3.1 Dual DC/DC Converter (13-001803) Description This unit is employed where it is necessary to derive two fixed voltage power supply rails from some higher voltage. Typically it is used to derive 5, 8, 12 or 15V from a 24V input. The circuit is based upon a pair of LM257 series variable voltage regulators (LM2576, 12 & 15V & LM2575, 5V), which are each capable of supplying an absolute maximum of 1.5A output current. Note that at full output current, the dissipation of the device must remain within design 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. 5.2.3.2 Technical Specification PARAMETER Operating Voltage: Output Voltage: Output Current: Connections: Temperature operational: Range storage PCB Size: SPECIFICATION 21 – 27V DC 12V & 12V (typical) 1.0A (maximum per o/p) Screw Terminal Block -30ΒC to +60ΒC -40ΒC to +70ΒC 85 x 63mm Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-38 of 51 5.2.4 5.2.4.1 Channel Selective Module (17-003006) Description The channel selectivity module is employed when the Cell Enhancer requirement dictates that very narrow bandwidths (single operating channels), must be selected from within the operating passband. One channel selectivity module is required for each channel. The Channel Selectivity Module is an Up/Down frequency converter that mixes the incoming channel frequency with a synthesised local oscillator, so that it is downconverted to an Intermediate Frequency (IF) in the upper HF range. An eight pole crystal filter in the IF amplifier provides the required selectivity to define the operating passband of the Cell Enhancer to a single PMR channel. The same local oscillator then converts the selected IF signal back to the channel frequency. Selectivity is obtained from a fixed bandwidth block filter operating at an intermediate frequency (IF) in the low VHF range. This filter may be internal to the channel selectivity module (Crystal or SAW filter) or an externally mounted bandpass filter, (LC or Helical Resonator). Various IF bandwidths can therefore be accommodated. A synthesized Local Oscillator is employed in conjunction with high performance frequency mixers, to translate between the signal frequency and IF. The operating frequency of each channel selectivity module is set by the programming of channel selectivity module frequencies and is achieved digitally, via hard wired links, banks of DIP switches, or via an onboard RS232 control module, providing the ability to remotely set channel frequencies. Automatic Level Control (ALC) is provided within each channel selectivity module such that the output level is held constant for high level input signals. This feature prevents saturation of the output mixer and of the associated amplifiers. Alarms within the module inhibit the channel if the synthesised frequency is not locked. The synthesiser will not usually go out of lock unless a frequency far out of band is programmed. The channel selectivity module is extremely complex and, with the exception of channel frequency programming within the design bandwidth, it cannot be adjusted or repaired without extensive laboratory facilities and the necessary specialised personnel. If a fault is suspected with any channel selectivity module it should be tested by substitution and the complete, suspect module should then be returned to AFL for investigation. Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-39 of 51 5.2.4.2 Drg. Nō. 17-003080, Generic Channel Module Block Diagram Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-40 of 51 5.2.5 5.2.5.1 12V Relay Board (20-001601) Description The General Purpose Relay Board allows the inversion of signals and the isolation of circuits. It is equipped with two dual pole change-over relays RL1 and RL2, with completely isolated wiring, accessed via screw terminals. Both relays are 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. Note that the board is available for different voltages (12 or 24V) depending on the type of relays fitted at RL1 and RL2. 5.2.5.2 Technical Specification 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 operational: :-30°C to +60°C Temperature range storage: :-40°C to +70°C Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-41 of 51 5.3 5.3.1 5.3.1.1 UHF Uplink 4 Channel Shelf 50-063704 Four Way Splitter (05-003401) Description The Splitter/Combiner used is a device for accurately matching two or more RF signals to single or multiple ports, whilst maintaining an accurate 50Ω load to all inputs/outputs and ensuring that the VSWR and insertion losses are kept to a minimum. Any unused ports will be terminated with an appropriate 50Ω load. 5.3.1.2 Technical Specification 05-003401 PARAMETER Frequency range: Bandwidth: Rejection: Insertion loss: Connectors: Weight: operational Temperature range: storage SPECIFICATION 70 – 250MHz 180MHz >14dB 6.5dB (in band, typical) SMA <1.5kg -30ΒC to +60ΒC -40ΒC to +70ΒC All other modules in this shelf are described elsewhere in this document. 5.4 UHF Duplex/PA Shelf 50-063705 All modules in this shelf are described elsewhere in this document. Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-42 of 51 5.5 5.5.1 5.5.1.1 UHF Simplex Channel Shelf 60-063706 Simplex Controller PCB (13-002811) Description The Simplex controller logic PCB monitors the receiver squelch output for a signal change and activates the supply switching for either the uplink or down link path accordingly. In normal operation, the low level Rx path is activated, any the associated Tx path is switched off. When a signal is detected by the Rx Squelch module, the Rx squelch output goes low (0v), which triggers the controller logic PCB. The PCB mutes the power supply to the opposite path Rx LNA’s and switches on the power to the output power stage. In order to prevent the power stage noise blocking the opposite path’s low level receiver, the power amplifier is normally muted. 5.5.2 5.5.2.1 ALC Attenuator Module (17-001201) Description The AFL Automatic Gain Control system consists of two units, a detector/amplifier and an attenuator. The detector/amplifier unit is inserted in the RF path on the output of the power amplifier, and the attenuator is situated in the RF path between the 1st and 2nd stages of amplification. However, in this case only the attenuator is employed as part of the simplex control system The attenuator comprises a 50Ω P.I.N diode, voltage-variable attenuator with a range of 3 to 30dB. The attenuation is controlled by a DC voltage which is derived in this instance from the simplex controller board. 5.5.3 5.5.3.1 Simplex Squelch Controller PCB (17-002802) Description The difference in signal levels between the up and downlink paths means that the channel modules would latch onto any signal in the band rather than a signal at the desired channel frequency. This is achieved, in part, to having the simplex controller apply maximum attenuation (via the AGC attenuator unit) to the downlink path, when the uplink is active. All other modules in this shelf are described elsewhere in this document. Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-43 of 51 5.6 5.6.1 5.6.1.1 Power Supply Shelf 50-063707 24V, 400W Power Supply Pack (96-300054) Description 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 PSU’s 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. 5.6.1.1 Technical Specification Voltages: Frequency: Voltage: Maximum current: AC Input Supply 110 or 220V nominal 90 to 132 or 180 to 264V (absolute limits) 47 to 63Hz DC Output Supply: 24V DC (nominal) 20 to 28V (absolute limits) 17A All other modules in this shelf are described elsewhere in this document. Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-44 of 51 6. 6.1 INSTALLATION Initial Installation Record When this equipment is initially commissioned, please use the equipment set-up record sheet (or similar) in Appendix A. This will help both the installation personnel and AFL should these figures be needed for future reference or diagnosis. Installation will be a matter of securing each shelf into its appropriate place in the rack cabinet, connecting all the cables (RF, AC, DC and alarm) to their correct ports/connectors and system testing (at the customer’s discretion) to prove the original specification. Power should not be applied until all connections have been double-checked and verified. Refer to the system/layout drawing(s) in section 4.0 for cabling details. Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-45 of 51 7. 7.1 7.1.1 MAINTENANCE General Procedures 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 within a wall mounted, environmentally protected 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 the mobile radio equipment to the base station is referred to as the uplink. The first 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 Cell Enhancer Management System, if fitted), or locally with the front panel LED’s. The green LED on the front panel should be illuminated, while the red alarm indicator should be off. If an Alarm is on, then that individual shelf must be removed and individually tested against the original test specification. The individual amplifier units within the shelf have a green LED showing through a hole in their piggy-back alarm board, which is illuminated if the unit is working correctly. 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. Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-46 of 51 7.1.2 Downlink Confirm that there is a signal at the expected frequency and strength from the base station. 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 master site BTS input and check for output at the remote site feeder output. 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. The expected downlink output for the given input can be found in the end-to-end test specification. 7.1.3 Uplink Testing the uplink involves a similar procedure to the downlink except that the frequencies used are those transmitted by the mobile equipment. 7.1.4 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 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. Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-47 of 51 7.1.5 Checking service 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 a radiating cable network and base stations that may be faulty or may have been damaged. 7.1.6 Service Support Advice and assistance with maintaining and servicing this system are available by contacting Aerial Facilities Ltd. 7.2 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: Test cable x 2: Test cable x 2: Hand tools: 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. N male – N male, 2M long RG214. SMA male – N male, 1m long RG223. Philips #1&2 tip screwdriver. 3mm flat bladed screwdriver. SMA spanner and torque setter. Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-48 of 51 7.3 7.3.1 Care of Modules General Comments 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. To prevent damage to a module, it must be withdrawn/inserted with care. The module may have connectors on its underside, which might not be visible to the service operative. 7.3.2 Module Removal (LNA’s, general procedure): The following general instructions should be followed to remove a module: Remove power to the unit Remove all visible 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. (When the module is loose, care may be needed, as there may be concealed connections underneath). 7.3.3 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.,(concealed connectors may have to be connected first). Replace retaining screws (if any). Double-check all connections before applying power. 7.3.4 Power Amplifiers 1) Remove power to the unit. (Switch off @ mains/battery, or remove DC in connector) 2) Remove alarm wires from alarm screw terminal block or disconnect multi-way alarm connector. 3) Carefully disconnect the RF input and output coaxial connectors (usually SMA) If alarm board removal is not required, go to step 5. 4) There is (usually) a plate attached to the alarm board which fixes it to the amplifier, remove its retaining screws and the alarm board can be withdrawn from the amplifier in its entirety. On certain types of amplifier the alarm board is not mounted on a dedicated mounting plate; in this case it will have to firstly be removed by unscrewing it from the mounting pillars, in most cases, the pillars will not have not have to be removed before lifting the amplifier. Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-49 of 51 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. 7.3.5 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 7.3.6 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 antistatic bag or container. These bags or containers are normally identified by being pink or black, and are often marked with an ESD label. Any module sent back to AFL for investigation/repair must be so protected. Please contact AFL’s quality department before returning a module. Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-50 of 51 APPENDIX A INITIAL EQUIPMENT SET-UP CALCULATIONS GENERAL INFORMATION Client Name: AFL Equip. Model Nō. Site Name: Date: Model ANTENNA SYSTEMS Gain Azimuth Comments Type Loss Comments A - Service Antenna B – Donor Antenna Length 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 Comments Input signal level (G) CE max. o/p power (E) Gain setting E-G Isolation required (Gain + 10dB) Service antenna gain (A) Service antenna feeder loss (C) Effective radiated power (ERP) E+A-C Attenuator setting CE gain-gain setting dBm dB dBm Value dBm dBm dB dB dB dB dBm dB 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 Comments 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) E+B-D Attenuator setting (CE gain-gain setting) Value dBm dBm dB dB dB dB dBm dB Denver Channelised CE User/Maintenance Handbook Handbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-51 of 51
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