PBE Europe as Axell Wireless 50-0637SERIES UHF Signal Extender User Manual RECEIVER MULTICOUPLER

Axell Wireless UHF Signal Extender RECEIVER MULTICOUPLER

Handbook

Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-1 of 51Channelised Bi-Directional RF AmplifierOperation & Maintenance ManualForDicarlo Associates, Inc.AFL product part Nō.: 50-063701
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-2 of 51Table of ContentsAMENDMENT LIST RECORD SHEET ................................................................................................. 4INTRODUCTION ....................................................................................................................................... 5Scope...........................................................................................................................................................................5Purpose.......................................................................................................................................................................5Glossary of Terms .....................................................................................................................................................6Key to AFL RF Module Drawing Symbols.............................................................................................................71. SAFETY CONSIDERATIONS ....................................................................................................... 81.1 Electric Shock Hazard .................................................................................................................................81.2 RF Radiation Hazard...................................................................................................................................81.3 Chemical Hazard..........................................................................................................................................91.4 Emergency Contact Numbers .....................................................................................................................92. OVERVIEW/SYSTEM DESCRIPTION ..................................................................................... 103. SPECIFICATION .......................................................................................................................... 133.1 50-063701 Parts Lists .................................................................................................................................133.1.1 UHF Duplex Shelf 50-063702 Parts List .................................................................................................133.1.2 Downlink UHF 5 Channel Shelf 50-063703 Parts List............................................................................143.1.3 Uplink UHF 4 Channel Shelf 50-063704 Parts List ................................................................................153.1.4 Leaky Feeder UHF Duplex/PA Shelf 50-063705 Parts List ....................................................................163.1.5 UHF Simplex Shelf 50-063706 Parts List................................................................................................173.1.6 Power Supply Shelf 50-063707 Parts List................................................................................................183.2 Technical Specification ..............................................................................................................................193.2.1 Channel Module Frequencies ..................................................................................................................203.3 Mechanical Specification ...........................................................................................................................214. SYSTEM DRAWINGS .................................................................................................................. 224.1 Drg. Nō. 50-063751, Channelised Cell Enhancer Rack Layout Drawing .............................................224.2 Drg. Nō. 50-063781, Channelised Cell Enhancer System Diagram .......................................................234.3 Drg. Nō. 50-063792, Base Side Duplex Shelf Outline Drawing ..............................................................244.3 Drg. Nō. 50-063793, Downlink Channels Shelf Outline Drawing ..........................................................254.4 Drg. Nō. 50-063794, Uplink Channels Shelf Outline Drawing...............................................................264.5 Drg. Nō. 50-063795, Tunnel Side Duplexer Shelf Outline Drawing ......................................................274.6 Drg. Nō. 50-063796, UHF Simplex Shelf Outline Drawing ....................................................................284.7 Drg. Nō. 50-063797, Power Supply Shelf Outline Drawing....................................................................295. SUB-UNIT MODULES.................................................................................................................. 305.1 UHF Duplex Shelf 50-063702 ....................................................................................................................305.1.1 Bandpass Filter (02-010701) ...................................................................................................................305.1.1.1 Description .......................................................................................................................................305.1.1.2 Technical Specification ....................................................................................................................305.1.2 3dB UHF Splitter (05-002603) ................................................................................................................315.1.2.1 Description .......................................................................................................................................315.1.2.2 Technical Specification ....................................................................................................................315.1.3 Ferrite Isolator (08-930003)....................................................................................................................325.1.3.1 Description .......................................................................................................................................325.1.4 ¼Watt 0- -30dB Switched Attenuator (10-000701)..................................................................................335.1.4.1 General Application ........................................................................................................................335.1.4.2 Switched Attenuators .......................................................................................................................335.1.5 Low Noise Amplifiers (11-006102, 11-007302 & 11-007402).................................................................345.1.5.1 Description .......................................................................................................................................345.1.5.2 Technical Specification, 11-007302.................................................................................................345.1.5.3 Technical Specification, 11-007402.................................................................................................355.1.5.4 Technical Specification, 11-006102.................................................................................................355.1.6 20W Power Amplifier (12-016301) ..........................................................................................................36
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-3 of 515.1.6.1 Description .......................................................................................................................................365.1.6.2 Technical Specification ....................................................................................................................365.2 5 Channel UHF Downlink Shelf 50-063703 .............................................................................................375.2.1 3dB Splitter 905-002603) See section 5.1.2 .............................................................................................375.2.2 3 Way Splitter/Combiner (05-003803).....................................................................................................375.2.2.1 Description .......................................................................................................................................375.2.2.2 Technical Specification ....................................................................................................................375.2.3 Dual DC/DC Converter (13-001803) ......................................................................................................385.2.3.1 Description .......................................................................................................................................385.2.3.2 Technical Specification ....................................................................................................................385.2.4 Channel Selective Module (17-003006)...................................................................................................395.2.4.1 Description .......................................................................................................................................395.2.4.2 Drg. Nō. 17-003080, Generic Channel Module Block Diagram......................................................405.2.5 12V Relay Board (20-001601) .................................................................................................................415.2.5.1 Description .......................................................................................................................................415.2.5.2 Technical Specification ....................................................................................................................415.3 UHF Uplink 4 Channel Shelf 50-063704 ..................................................................................................425.3.1 Four Way Splitter (05-003401)................................................................................................................425.3.1.1 Description .......................................................................................................................................425.3.1.2 Technical Specification 05-003401..................................................................................................425.4 UHF Duplex/PA Shelf 50-063705..............................................................................................................425.5 UHF Simplex Channel Shelf 60-063706 ...................................................................................................435.5.1 Simplex Controller PCB (13-002811)......................................................................................................435.5.1.1 Description .......................................................................................................................................435.5.2 ALC Attenuator Module (17-001201) ......................................................................................................435.5.2.1 Description .......................................................................................................................................435.5.3 Simplex Squelch Controller PCB (17-002802) ........................................................................................435.5.3.1 Description .......................................................................................................................................435.6 Power Supply Shelf 50-063707..................................................................................................................445.6.1 24V, 400W Power Supply Pack (96-300054)...........................................................................................445.6.1.1 Description .......................................................................................................................................445.6.1.1 Technical Specification ....................................................................................................................446. INSTALLATION............................................................................................................................ 456.1 Initial Installation Record .........................................................................................................................457. MAINTENANCE............................................................................................................................ 467.1 General Procedures....................................................................................................................................467.1.1 Fault Finding ...........................................................................................................................................467.1.2 Downlink ..................................................................................................................................................477.1.3 Uplink.......................................................................................................................................................477.1.4 Fault repair ..............................................................................................................................................477.1.5 Checking service ......................................................................................................................................487.1.6 Service Support ........................................................................................................................................487.2 Tools & Test Equipment............................................................................................................................487.3 Care of Modules .........................................................................................................................................497.3.1 General Comments...................................................................................................................................497.3.2 Module Removal (LNA’s, general procedure):........................................................................................497.3.3 Module Replacement (general):...............................................................................................................497.3.4 Power Amplifiers......................................................................................................................................497.3.5 Low Power Amplifier Replacement..........................................................................................................507.3.6 Module Transportation:...........................................................................................................................50APPENDIX A INITIAL EQUIPMENT SET-UP CALCULATIONS............................................... 51
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-4 of 51AMENDMENT LIST RECORD SHEETIssueNō.Date IncorporatedbyPage No.’sAmendedReason for new issue1 29/09/2003 CMH 1st Issue2 03/11/03 PLB 8 Add FCC RF exposure NoteDocument Ref:-50-063708HBKM
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-5 of 51INTRODUCTIONScopeThis handbook is for use solely with the equipment identified by the AFL Part Numbershown on the front cover. It is not to be used with any other equipment unless specificallyauthorised by Aerial Facilities Limited.PurposeThe purpose of this handbook is to provide the user/maintainer with sufficient informationto service and repair the equipment to the level agreed. Maintenance and adjustments to anydeeper level must be performed by AFL, normally at the company’s repair facility inChesham, England.This handbook has been prepared in accordance with BS 4884, and AFL’s Qualityprocedures, which maintain the company’s registration to ISO 9001: 1994 and to theR&TTE Directive of the European Parliament. Copies of the relevant certificates and thecompany 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 NoticeThis manual is written for the use of technically competent operators/service persons. Noliability is accepted by AFL for use or misuse of this manual, the information containedtherein, or the consequences of any actions resulting from the use of the said information,including, but not limited to, descriptive, procedural, typographical, arithmetical, or listingerrors.Furthermore, AFL does not warrant the absolute accuracy of the information containedwithin 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 andpertinence of this document without notice.All AFL products carry a twelve month warranty from date of shipment. The warranty isexpressly on a return to base repair or exchange basis and the warranty cover does notextend to on-site repair or complete unit exchange.
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-6 of 51Glossary of TermsRepeater orCell Enhancer A Radio Frequency (RF) amplifier which can simultaneouslyamplify and re-broadcast Mobile Station (MS) and BaseTransceiver Station (BTS) signals.Band Selective Repeater A Cell Enhancer designed for operation on a range of channelswithin a specified frequency band.Channel SelectiveRepeater A Cell Enhancer, designed for operation on specified channel(s)within a specified frequency band. Channel frequencies may befactory set or on-site programmable.BTS Base Transceiver StationC/NR Carrier-to-Noise RatioDownlink (D.L.) RF signals transmitted from the BTS and to the MSUplink (U.L.) RF signals transmitted from the MS to the BTSRSA Receiver/Splitter AmplifierEMC Electromagnetic CompatibilityGND GroundDC Direct CurrentAC Alternating CurrentID Identification NumberOIP3 Output Third Order Intercept Point = RFout +(C/I)/2LED Light Emitting DiodeM.S. Mobile StationN/A Not ApplicableN/C No ConnectionNF Noise FigureRF Radio FrequencyRx ReceiverTx TransmitterS/N Serial Number
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-7 of 51Key to AFL RF Module Drawing Symbols
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-8 of 511. SAFETY CONSIDERATIONS1.1 Electric Shock HazardElectrical shocks due to faulty mains driven power supplies.Whilst ever potentially present in any electrical equipment, such a condition would beminimised by quality installation practice and thorough testing at:a) Original assemblyb) Commissioningc) Regular intervals, thereafter.All test equipment to be in good working order prior to its use. High current power suppliescan be dangerous because of the possibility of substantial arcing. Always switch off duringdisconnection and reconnection.1.2 RF Radiation HazardRF radiation, (especially at UHF frequencies) arising from transmitter outputs connected toAFL’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’sefficiency. No investigation should be carried out until all RF power sources have beenremoved. This would always be a wise precaution, despite the severe mismatch between theimpedance of an N type connector at 50Ω, and that of free space at 377Ω, which wouldseverely mitigate against the efficient radiation of RF power. Radio frequency burns couldalso 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 iscapable of producing RF field strengths, which may exceed guideline safe values especially ifused with antennas having appreciable gain. In this regard the use of directional antennaswith backscreens and a strict site rule that personnel must remain behind the screen while theRF power is on, is strongly recommended.IMPORTANT NOTE: To comply with FCC RF exposure compliance requirements, aseparation distance of at least 20cm must be maintained between the leaky feeder attached tothis device and all persons. Furthermore the gain of antennas attached must be chosen andlocated 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 nothaving lightning protection, the use of a safety earth connected to the case-earthing bolt isstrongly advised.
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-9 of 511.3 Chemical HazardBeryllium Oxide, also known as Beryllium Monoxide, or Thermalox™, is sometimes usedin devices within equipment produced by Aerial Facilities Ltd. Beryllium oxide dust can betoxic if inhaled, leading to chronic respiratory problems. It is harmless if ingested or bycontact.Products that contain beryllium are load terminations (dummy loads) and some poweramplifiers. 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 internationalregulations, but pose no threat under normal circumstances. Only if a component containingberyllium oxide has suffered catastrophic failure, or exploded, will there be any danger of theformation of dust. Any dust that has been created will be contained within the equipmentmodule as long as the module remains sealed. For this reason, any module carrying theyellow 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 aReturned Materials Authorisation (RMA) number. Please quote this number on the packingdocuments, and on all correspondence relating to the shipment.PolyTetraFluoroEthylene, (P.T.F.E.) and P.T.F.E. Composite MaterialsMany modules/components in AFL equipment contain P.T.F.E. as part of the RF insulationbarrier.This material should never be heated to the point where smoke or fumes are evolved. Anyperson feeling drowsy after coming into contact with P.T.F.E. especially dust or fumesshould seek medical attention.1.4 Emergency Contact NumbersThe AFL Quality Department can be contacted on:Telephone +44 (0)1494 777000Fax +44 (0)1494 777002e-mail qa@aerial.co.uk
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-10 of 512. OVERVIEW/SYSTEM DESCRIPTIONThe equipment covered in this manual is a UHF Bi-directional Amplifier (also known as aRepeater). Its main sphere of application is in urban areas where the topography is such thatshadows occur in the propagation pattern (for example within large buildings, conferencecentres and tunnels, etc.)The Amplifier is a 4-port device for direct connection to two Base facing antennas, usually ahighly directional Yagi or similar aligned towards the base (donor) site, and two radiatingcable feeders to cover the mobiles. The channel frequencies passed by the Amplifier are setas per the specific customer requirements. In this instance, the channel module frequencieshave been ‘hard-wired’ and so it is not possible to change frequencies without some re-configuration of the channel programming.The system for which the Amplifier is to be used with is mainly duplex channel UHF radiosystem but with a single simplex channel. The duplex channels operate constantly in eachdirection using the Base Antenna port 2 and Radiating Cable port 2. There are fiveDownlink (Base Transmit) duplex channels and four Uplink (Base Receive) duplexchannels. In addition there is the Uplink simplex (talkaround) channel operating via theseports.The Downlink simplex channel operates through the Base Antenna port 1 and RadiatingCable port 1 ports. This is to avoid any interaction between the common frequency channelhigh gain paths. Using separate antennas adds the isolation required for the simplex part ofthe Amplifier to work.The simplex channels are not constantly operating in their entirety. Instead, each simplexpath has the output amplification disabled and when an input is detected in one path thatamplifier will be switched on and the other path will be held off until that input signal hasstopped. In this way, the simplex part of the system is constantly ready to pass the channel ineither path.The Bi-directional Amplifier consists of six different 19” rack mount 4U chassis. These area Base side Duplex/PA chassis (AFL part: 50-063702) to provide the link with Antenna 2and the remainder of the system. In addition there is a Tunnel side Duplex/PA chassis (AFLpart: 50-063705) to connect the Radiating cable 2 to the remainder of the system. Thechannel selectivity is made in the Downlink by a Downlink Channel chassis (AFL part: 50-063703) and in the Uplink by the Uplink Channel chassis (AFL part: 50-063704). TheDownlink simplex channel and part of the Uplink simplex channel circuit is housed in theSimplex chassis (AFL part: 50-063706) and there is a Power Supply chassis (AFL part: 50-063707) 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 connectionsare made towards the bottom of the rear of the rack suitable for cable entry via cable ductsthrough 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 CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-11 of 51For better understanding of the system, the system diagram on page 23 should be consulted.Downlink pathDuplex system signals in the Downlink path arriving at Base Antenna port 2 are first passedto the Base side chassis and so through a duplexed bandpass filter to ensure good inputselectivity. This is then followed by a 31dB gain LNA to provide some amplification and aswitchable 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 isfollowed by two three way splitters to provide six equal paths. One of these is terminatedwith a 50ohm load and the remaining five each connect to a channel selectivity module. TheDownlink channel modules offer 15dB gain and have ALC circuitry to limit the moduleoutput to -25dBm. This is ensure that the total output power may not become higher than thespecified level. The channel module outputs are taken to two three way combiners forconnection to a two way combiner which then routes signals out of the Downlink Channelchassis and to the Tunnel side chassis.The Downlink duplex channel frequencies factory set are:457.050MHz458.225MHz457.850MHz457.300MHz457.775MHzIn the Tunnel side chassis a 21dB gain LNA is then followed by a 15dB gain LPA to drive a23dB gain 20Watt Power Amplifier which provides the final stage of amplification. ThePower Amplifier is followed by a duplexed bandpass filter connecting to the Radiating cableport 2.The Downlink simplex channel, 452.850MHz, is received at Base Antenna port 1 and ispassed through a bandpass filter to provide selectivity. A 31dB gain LNA then providesinitial amplification and this is followed by a switchable attenuator giving up to 30dB ofgain adjustment in 2dB steps. An ALC attenuator is then fitted for muting the input of thechannel module when an Uplink path signal has been detected and is being amplified in thatdirection. The channel module following the attenuator has 15dB of gain and has ALCcircuitry to limit the module output to -20dBm to limit the total output power to thatspecified in case of an increase in off-air signal input. The channel module is followed by a31dB gain LNA and then a 15dB gain 1Watt LPA. A bandpass filter after the LPA connectsto the Radiating cable port 1.Uplink pathAll Uplink channels enter the Bi-Directional Amplifier at Radiating Cable port 2 and pass tothe Tunnel side chassis where a duplexed bandpass filter routes the signals to the Uplinkinput amplifier, a 31dB gain LNA. A switchable attenuator then gives up to 30dB of gainadjustment 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 providesix equal paths. One of these is unused and so is terminated with a 50ohm load. Four of theremaining paths each connect to a channel selectivity module giving 15dB gain with anALC limited maximum output of -23dBm. The four module outputs then connect to a fourway combiner for routing to the Base side chassis. The last of the six paths is routed to theSimplex chassis which will be described later in this section.
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-12 of 51The Uplink duplex channel frequencies are factory set:452.050MHz453.225MHz452.300MHz452.775MHzThe four Uplink duplex channels arrive in the Base side chassis and pass through a 21dBgain then a 15dB gain LPA driver before a 23dB gain 20Watt Power Amplifier. There is anisolator 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 abandpass filter then connects to the Base Antenna port 2.In the Simplex chassis, the Uplink path from the Uplink Channel chassis is first routedthrough two ALC attenuators to mute the input to the Uplink channel selectivity modulewhen a Downlink simplex signal is being passed in the other path. A channel selectivitymodule, 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 atthe output to provide protection from the duplex path PA. The Uplink simplex signal thenconnects 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 circuitbreaker to switch the chassis On or Off. A 15A filter then provides some protection againstinstabilities in the AC supply. There are two 400Watt PSU modules fitted and the outputs ofthese 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 RFchassis connectors are SMA female. Each of the five RF chassis has a DC input fuse and thefront panels have a green ‘Power ON’ LED and a red ‘ Alarm’ LED. The Power Supplychassis 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 ofthe rack for user interface. In addition, the 19” rack has intruder alarms fitted to the front andrear doors of the rack. The alarm outputs may be connected to singly or in parallel as a racksummary. The alarm outputs are voltage free dry contacts being Closed in normal operationand Open in an Alarm state.
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-13 of 513. SPECIFICATION3.1 50-063701 Parts Lists50-063702 BASE ANT SIDE UHF DUPLEX/PA CHASSIS 150-063703 DOWNLINK UHF 5 CHANNEL CHASSIS 150-063704 UPLINK UHF 4 CHANNEL CHASSIS 150-063705 LCX SIDE UHF DUPLEX/PA CHASSIS 150-063706 UHF SIMPLEX CHANNEL CHASSIS 150-063707 POWER SUPPLY CHASSIS, 110V AC INPUT 197-500033 38U RACK 38U 600 x 600mm RAL7035 197-500065 EURORACK GND/EARTHING KIT 13.1.1 Base Antenna Side UHF Duplex/PA Shelf 50-063702 Parts List02-010701 5POLE UHF COMBLINE BANDPASS FILTER 205-002603 UHF 3dB SPLITTER SMA 108-004905 25Watt 2 PORT ISOLATOR N 330-470MHz 110-000701 1/4Watt 0-30dB SWITCHED ATTENUATOR 111-006102 LPA 380-500MHz 1Watt 111-007302 LNA. 380-500MHz 20dB 111-007402 LNA. 380-500MHz 30dB 112-016301 POWER AMPLIFIER 380-470MHz 20Watt CLASS A 117-004327 ATTENUATOR COVER 117-004730 ATTENUATOR MOUNTING 119-000826 19" CHASSIS 400mm DEEP LID 119-001021 4U 19" RACKMOUNT 400mm DEEP CHASSIS 119-001024 4U 19" CHASSIS FRONT PANEL 180-063820 HEATSINK 20Watt PA 191-030002 N ADAPTOR PANEL FEMALE/FEMALE 191-130005 SMA BULKHEAD ADAPTOR FEMALE/FEMALE 291-500001 POWER PLUG 3 PIN PANEL MOUNT NC-X 191-600014 'D' 9 WAY SOCKET (NON FILTERED) 391-600015 'D' 9 WAY PLUG (NON FILTERED) 191-600019 'D'15 WAY SHELL (2W7) 191-640004 LARGE PIN FOR 91-660001 D SOCKET 291-660001 2W5 MIXED D TYPE SOCKET (7 WAY) 196-110021 T10A 0.25 x 1.25' FUSE CERAMIC 296-110034 FUSE HOLDER 16-30A, 32mm 196-700034 LED RED 5mm IP67 196-700035 LED GREEN 5mm IP67 197-400002 4U HANDLE [ALLOY] 2
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-14 of 513.1.2 Downlink UHF 5 Channel Shelf 50-063703 Parts List05-002603 UHF 3dB SPLITTER SMA 205-003803 3 WAY SPLITTER, UHF 413-001803 DUAL DC/DC CONVERTER 24V-12V 1A 217-003012 CHANNEL MODULE 450MHz, 15kHz (8p) 519-000826 19" CHASSIS 400mm DEEP LID 119-001021 4U 19" RACK MOUNT 400mm DEEP CHASSIS 119-001024 4U 19" CHASSIS FRONT PANEL 120-001601 12V RELAY BOARD 391-130005 SMA BULKHEAD ADAPTOR FEMALE/FEMALE 291-500001 POWER PLUG 3 PIN PANEL MOUNT NC-X 191-600015 'D' 9 WAY PLUG (NON FILTERED) 191-620001 'D' 25 WAY SOCKET 593-930003 SMA 50ohm TERMINATION 296-110001 FUSE HOLDER 20 x 5mm6.3A 196-110011 T 4A A.SURGE FUSE 20mm 296-600002 INSULATING BOOT SMALL 196-600003 INSULATING BOOT D.C. 196-700034 LED RED 5mm IP67 196-700035 LED GREEN 5mm IP67 197-400002 4U HANDLE [ALLOY] 2
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-15 of 513.1.3 Uplink UHF 4 Channel Shelf 50-063704 Parts List05-002603 UHF 3dB SPLITTER SMA 105-003401 4 WAY SPLITTER LOW POWER 105-003803 3 WAY SPLITTER, UHF 213-001803 DUAL DC/DC CONVERTER 24V-12V 1A 217-003012 CHANNEL MODULE 450MHz, 15kHz (8p) 419-000826 19" CHASSIS 400mm DEEP LID 119-001021 4U 19" CHASSIS 400mm DEEP CHASSIS 119-001024 4U 19" CHASSIS FRONT PANEL 120-001601 12V RELAY BOARD 291-130005 SMA BULKHEAD ADAPTOR FEMALE/FEMALE 391-500001 POWER PLUG 3 PIN PANEL MOUNT NC-X 191-600015 'D' 9 WAY PLUG 191-620001 'D' 25 WAY SOCKET 493-930003 SMA 50ohm TERMINATION 196-110001 FUSE HOLDER 20 x 5mm6.3A 196-110011 T 4A A.SURGE FUSE 20mm 296-600002 INSULATING BOOT SMALL 196-600003 INSULATING BOOT D.C. 196-700034 LED RED 5mm IP67 196-700035 LED GREEN 5mm IP67 197-400002 4U HANDLE [ALLOY] 2
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-16 of 513.1.4 Tunnel side UHF Duplex/PA Shelf 50-063705 Parts List02-010701 5POLE COMBLINE BANDPASS FILTER 210-000701 1/4Watt 0-30dB SWITCHED ATTENUATOR 111-006102 LPA 380-500MHz 1Watt 111-007302 LNA. 380-500MHz 20dB 111-007402 LNA. 380-500MHz 30dB 112-016301 POWER AMPLIFIER 380-470MHz 20Watt CLASS A 113-001803 DUAL DC/DC CONVERTER 24V-12V 1A 117-004327 ATTENUATOR COVER 117-004730 ATTENUATOR MOUNTING 119-000826 19" CHASSIS 400mm DEEP LID 119-001021 4U 19" RACK MOUNT 400mm DEEP CHASSIS 119-001024 4U 19" CHASSIS FRONT PANEL 180-063820 HEATSINK 20Watt PA 191-030002 N ADAPTOR PANEL FEMALE/FEMALE 191-130005 SMA BULKHEAD ADAPTOR FEMALE/FEMALE 291-500001 POWER PLUG 3 PIN PANEL MOUNT NC-X 191-600014 'D' 9 WAY SOCKET (NON FILTERED) 391-600015 'D' 9 WAY PLUG (NON FILTERED) 191-600019 'D'15 WAY SHELL (2W7) 191-640004 LARGE PIN FOR 91-660001 D SOCKET 291-660001 2W5 MIXED D TYPE SOCKET (7 WAY) 196-110021 T10A 0.25 x 1.25' FUSE CERAMIC 296-110034 FUSE HOLDER 16-30A, 32mm 196-700034 LED RED 5mm IP67 196-700035 LED GREEN 5mm IP67 197-400002 4U HANDLE [ALLOY] 2
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-17 of 513.1.5 UHF Simplex Shelf 50-063706 Parts List02-010701 5POLE COMBLINE BANDPASS FILTER 208-930003 2 PORT ISOLATOR 360-470MHz SMA 110-000701 1/4Watt 0-30dB SWITCHED ATTENUATOR 111-006102 LNA 380-500MHz 1Watt 211-007402 LNA. 380-500MHz 30dB 313-001803 DUAL DC/DC CONVERTER 24V-12V 1A 213-002811 SIMPLEX CONTROLLER 117-001201 ALC ATTENUATOR 217-002802 SIMPLEX RX/SQUELCH & AF 217-004327 ATTENUATOR COVER 117-004730 ATTENUATOR MOUNTING 117-010802 CHANNEL MODULE 450MHz 8p 15kHz BW + IF OUT 219-000826 19" CHASSIS 400mm DEEP LID 119-001021 4U 19" RACK MOUNT 400mm DEEP CHASSIS 119-001024 4U 19" CHASSIS FRONT PANEL 120-001601 12V RELAY BOARD 191-030002 N ADAPTOR PANEL FEMALE/FEMALE 291-130005 SMA BULKHEAD ADAPTOR FEMALE/FEMALE 291-500001 POWER PLUG 3 PIN PANEL MOUNT NC-X 191-600014 'D' 9 WAY SOCKET (NON FILTERED) 591-600015 'D' 9 WAY PLUG (NON FILTERED) 191-620001 'D' 25 WAY SOCKET 196-110034 FUSE HOLDER 16-30A, 32mm 196-700034 LED RED 5mm IP67 196-700035 LED GREEN 5mm IP67 197-400002 4U HANDLE [ALLOY] 2
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-18 of 513.1.6 Power Supply Shelf 50-063707 Parts List80-008902 24V RELAY PCB ASSEMBLY 180-008920 DUAL PSU HEATSINK 280-008921 DUAL PSU CASE 180-008922 DUAL PSU LID 180-008925 DUAL PSU FRONT PANEL 191-510004 3 PIN PANEL MOUNT SOCKET NC-X 691-510035 3 WAY MATE N LOK PLUG HOUSING 291-520001 POWER MAINS INLET FIXED 191-520005 MAINS LEAD (IEC) 191-520010 MAINS RETAINING CLIP 191-520032 MATE N LOK SOCKET CONTACT 20/14 AWG 691-600015 'D' 9 WAY PLUG (NON FILTERED) 191-700017 ICD 15 WAY 0.1' CONNECTOR 191-700062 6 WAY 0.1' CONNECTOR 291-800015 TRIPLE DECK TERMINAL BLOCK 691-800016 TRIPLE DECK TERMINAL JUMPER 291-800017 TRIPLE DECK TERMINAL END 191-800031 SYMETRIC 35 x 7.5mm DIN RAIL 192-900014 DIN RAIL (TOP HAT) EARTH CLAMP M5 196-300054 24V 17A PSU 400W (XP BCC) 296-500005 DC INPUT FILTERS 696-500009 SURGE FILTER, 15A, 110V, DIN RAIL 196-600001 INSULATING BOOT LARGE 196-700034 LED RED 5mm IP67 196-700035 LED GREEN 5mm IP67 1
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-19 of 513.2 Technical SpecificationPARAMETER SPECIFICATIONFrequency range: 457.0-458.5MHz (Downlink) + 452.850MHz452.0-453.5MHz (Uplink)Bandwidth: 1.5MHzGain: 80dB (70dB +/- 10dB)Gain Adjustment: 0 - 30dB (in 2dB steps)Channel Bandwidth: 15kHzChannel Selectivity: > 20dBc at +/-12.5kHzUplink Power output: +23dBm per channelDownlink Power output: +23dBm per channelOIP3: Uplink +50dBmDownlink +54dBmIn-band Spurious Noise Figure: <-36dBm (30kHz B/W)ALC: Fitted in each channel moduleVSWR: better than 1.5:1RF Connectors: N type, femaleoperational: -30°C to +60°CTemperature range:storage: -40°C to +70°C1 PSU Chassis2 Tunnel side Chassis3 Base side Chassis4 Simplex Chassis5 Downlink Channels Chassis6 Uplink Channels ChassisSummary alarm:(volt-free contacts at Krone block)7 Rack Doors Open
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-20 of 513.2.1 Channel Module Frequencies17-003012 Duplex Channel ModulesFrequency (MHz) Bandwidth Gain ALC Qty.457.050 (Downlink) 15kHz 15dB -25dBm 1457.300 (Downlink) 15kHz 15dB -25dBm 1457.775 (Downlink) 15kHz 15dB -25dBm 1457.850 (Downlink) 15kHz 15dB -25dBm 1458.225 (Downlink) 15kHz 15dB -25dBm 1452.050 (Uplink) 15kHz 15dB -23dBm 1452.300 (Uplink) 15kHz 15dB -23dBm 1457.775 (Uplink) 15kHz 15dB -23dBm 1453.225 (Uplink) 15kHz 15dB -23dBm 117-010802 Simplex Channel ModulesFrequency (MHz) Bandwidth Gain ALC Qty.452.850(Uplink) 15kHz 25dB -17dBm 1452.850(Downlink) 15kHz 15dB -20dBm 1All with hardwired frequency selection
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-21 of 513.3 Mechanical SpecificationPARAMETER SPECIFICATIONHeight: 38U Eurorack (1U=44.5mm)Width: 600mmCase (rack) size:Depth: 600mmoperational: -30°C to +60°CTemperature Range: storage: -40°C to +70°CWeight: >100kg*Humidity: 10 – 90% non-condensingRF Connectors: N type femaleEnvironmental Protection: IP40Shelves: AlocromHeatsinks: Black anodisedFinish:Handles: AlloySupply Cable:Unit supplied with suitable supply inputleads with connector and specifiedlength of cable.* Note: Individual shelf weights not specified.
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-22 of 514. SYSTEM DRAWINGS4.1 Drg. Nō. 50-063751, Channelised Cell Enhancer Rack Layout DrawingTHIRD ANGLE PROJECTI ON1234ABCDEF FEDCBA4321No DESCRIPTIONISSUEDATE BYBY AERIAL FACILITIES LTD. TWO DECIMAL PLACES ± 0.1mm ONE DECIMAL PLACE ± 0.3mm NO DECIMAL PLACE ± 1m mPERMISSIBLE ONLY IF EXPRESSLY AUTHORISED IN WRITINGREP RODUCT ION OR USE OF T HIS DE S IGN B Y OT HE RS ISTHIS IS A PROPRIETARY DESIGN OF AERIAL FACILITIES LTD.TOLERANCESDRAWN DATE APPDCHKDmm UNLESS OTHERWISE ALL DIMENSIONS ARE INSTATEDSCALET el : 01494 777000 F ax : 01494 777002Aerial Facilities LimitedCUST OM E RTITLEDRAWING NoA4RACK INTERCONNECTION AND LAYOUTFOR 5 CHN UHF CHANNELISED CE 80dB50-0637511A1: 10MNR 23/ 09/ 03Limit edAer ial Fa cilit ie sLimit edAer ial Fa cilit ie s50-0637042U SPACE50-0637032U SPACE50-0637062U SPACE50-0637022U SPACE50-0637052U SPACE50-0637074U SPACEPRODUCTION ISSUE MNR23/ 09/ 03Limit edAer ial Fa cilit ie sLimit edAer ial Fa cilit ie sLimit edAer ial Fa cilit ie sLimit edAer ial Fa cilit ie sOFFONFRONT BACKRF INTERCONNECTION CABLESALARMPOWERALARMPOWERALARMPOWERALARMPOWERALARMPOWERALARM OUTPUTBASE PORT 1BASE PORT 2LEAKY FEEDER 1LEAKY FEEDER 2RB BB
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-23 of 514.2 Drg. Nō. 50-063781, Channelised Cell Enhancer System Diagram5 CHN UHF CHANNELISED CE 80dBSYSTEM DIAGRAM50-0637811A-MNR 30/07/03dBdBdBdB dBSQUELCHSQUELCHBANDPASS FILTER457-458.5MHz02-010701LNA31dB GAIN11-007402 10-0007010-30dBATTENUATORSPLITTER05-002603SPL ITTER05-0038035 x CHANNEL MO DUL E17-00301205-003803CO M BINER05-003803SPL ITTER05-003803CO M BINERCO M BINER05-002603 LNA21dB GAIN11-007302 11-006102LPA15dB GAIN12-01630123dB GAIN20W PA02-010701457-458.5MHzBANDPASS FIL TER02-010701452-453.5MHzBANDPASS FILTERSPL ITTER05-002603ISOLATOR08-004905 11-00610215dB GAINLPA12-01630123dB GAIN20W PA11-00730221dB GAINLNAAT T E NUAT O R10-0007010-30dB LNA11-00740231dB GAIN 452-453.5MHzBANDPASS FIL TER02-01070105-002603SPLITTER05-003803SPL ITTERSPL ITT ER05-00380305-003401CO M BINER08-004905ISOLATOR11-00610215dB GAINLPA AGC ATT.17-001201451.5-453MHzBANDPASS FILTER02-010701451.5-453MHz02-010701BANDPASS FILTERATT ENUATOR10-0007010-30dB17-001201AGC ATT.31dB GAIN11-007402LNA31dB GAINLNA11-007402 11-00610215dB GAINLPA4 x CHANNEL MO DUL E17-003012CHANNEL M O DUL E17-010802CHANNEL MO DULE17-01080211-00740231dB GAINLNA17-00280217-002802ANTF ACI NGBASE 2F ACI NGBASE 1ANTFEEDERL EAKYPORT 1PORT 2FEEDERL EAKY50-063702BASE SIDEDUPL EX/PACHASSIS,4U50-063703DO WNL INKCHANNEL S4UCHANNEL SUPL INK50-0637044ULCX SIDE50-063705CHASSIS ,4 UDUPL EX/PA50-063707PSU CHASSIS110VACINPUTOUTPUTTODC6 x DC FIL TERS400WPSU400WPSU7.5A MCB96-92004596-500009FILTERAC15AFREQUENCY PROGRAMMING DATAB/W=15kHzFREQUENCY PROGRAMMING DATAB/W=15kHzFREQUENCY PROGRAMMING DATAB/W=15kHzFREQUENCY PROGRAMMING DATAB/W=15kHzFREQUENCY PROGRAMMING DATAB/W=15kHzFREQUENCY PROGRAMMING DATAB/W=15kHzFREQUENCY PROGRAMMING DATAB/W=15kHzFREQUENCY PROGRAMMING DATAB/W=15kHzFREQUENCY PROGRAMMING DATAB/W=15kHzFREQUENCY PROGRAMMING DATAB/W=15kHzFREQUENCY PROGRAMMING DATAB/W=15kHz24VUNITS457. 050M H z457. 300M H z457. 775M H z457. 850M H z458. 225M H z452. 050M H z452. 300M H z452. 775M H z453. 225M H z452. 850M H z452. 850M H zDATEDESCRIPTIONNoISSUETHIRD ANGL E PRO JECTION123456789101112ABCDEFGH123456789101112ABCDEFGHPERMISSIBLE ONLY IF EXPRESSLY AUTHORISED IN WRITINGRE PRODUCTI ON OR US E OF THIS DE SIGN BY OTH ERS ISTHIS IS A PROPRIETARY DESIGN OF AERIAL FACILITIES LTD.UNLESS OTHERWISE STATEDALL DIMENSIONS ARE IN mmDATEDRAWN CHKD APPDTWO DECIMAL PLACES ± 0.1mmNO DECIMAL PLACE ± 1mmONE DECIMAL PLACE ± 0.3mmBY AERIAL FACILITIES LTD.TOLERANCES SCALECUSTOME R DRAWING NoFax : 01494 777002Tel : 01494 777000Aerial Facilities LimitedEnglandTI TLE2APRO DUCT IO N ISSUE MNR30/ 07/ 03GAIN 15dBALC -25dBm17-001201AGC ATT.dB2 x SIMPLEXCO NTRO L L ER13-002811RB PBCHASSIS,4UUHF SIMPL EX50-063706ADDING TEXT23/ 09/ 03MNR1BBYALC -23dBmGAIN 15dBAL C -1 7 dBmG AIN 2 5d BALC -2 0 d BmGAIN 15dB
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-24 of 514.3 Drg. Nō. 50-063792, Base Side Duplex Shelf Outline DrawingLim itedAe ria l Fa c i litie s177.50443.00400.00171.50482.60BYDAT EDES CRIP TIO NNoISSUETHIRD ANGL E PRO JECTION123456789ABCDEF1 23456789ABCDEFFax : 01494 777002Tel : 01494 777000Aerial Facilities LimitedTHIS IS A PROPRIETARY DESIGN OF AERIAL FACILITIES L TD.REP RO DUCT IO N O R USE O F THIS DESIG N BY O THERS ISPERMISSIBLE O NL Y IF EXPRESSLY AUTHORISED IN WRITINGBY AERIAL FACIL ITIES LTD.NO DECIM AL PL ACE ± 1 mmONE DECIMAL PL ACE ± 0.3mmTWO DECIMAL PL ACES ± 0.1mmAL L DIMENSIO NS ARE IN m mUNL ESS OTHERWISE STATEDCHKDDRAWN APPDDAT ET O L ERANCES SCALEEnglandCUST O MER DRAWING .NoTITLE3ABASE SIDE DUPLEX/PA (4U CHASSIS)OUTLINE DRAWING50-0637921:41AMNR 22/09/03PRODUCTION ISSUE22/09/03MNREARTH STUDATTENUATORSWITCHESA (SMA)B (SMA)C (SMA)BASE 2 ('N'TYPE)ALARMFUSE T10ADC INPUTPART No : 50-063702ALARMPOWERRB BB
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-25 of 514.3 Drg. Nō. 50-063793, Downlink Channels Shelf Outline DrawingLim itedAe ria l Fa c i litie s177.50443.00400.00171.50482.60BYDAT EDES CRIP TIO NNoISSUETHIRD ANGL E PRO JECTION123456789ABCDEF1 23456789ABCDEFFax : 01494 777002Tel : 01494 777000Aerial Facilities LimitedTHIS IS A PROPRIETARY DESIGN OF AERIAL FACILITIES L TD.REP RO DUCT IO N O R USE O F THIS DESIG N BY O THERS ISPERMISSIBLE O NL Y IF EXPRESSLY AUTHORISED IN WRITINGBY AERIAL FACIL ITIES LTD.NO DECIM AL PL ACE ± 1 mmONE DECIMAL PL ACE ± 0.3mmTWO DECIMAL PL ACES ± 0.1mmAL L DIMENSIO NS ARE IN m mUNL ESS OTHERWISE STATEDCHKDDRAWN APPDDAT ET O L ERANCES SCALEEnglandCUST O MER DRAWING .NoTITLE3ADOWNLINK CHANNELS (4U CHASSIS)OUTLINE DRAWING50-0637931:41AMNR 22/09/03PRODUCTION ISSUE22/09/03MNREARTH STUDA (SMA)D (SMA)ALARMFUSE T3.15ADC INPUTALARMPOWERPART No : 50-063703RB BB
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-26 of 514.4 Drg. Nō. 50-063794, Uplink Channels Shelf Outline DrawingLim itedAe ria l Fa c i litie s177.50443.00400.00171.50482.60BYDAT EDES CRIP TIO NNoISSUETHIRD ANGL E PRO JECTION123456789ABCDEF1 23456789ABCDEFFax : 01494 777002Tel : 01494 777000Aerial Facilities LimitedTHIS IS A PROPRIETARY DESIGN OF AERIAL FACILITIES L TD.REP RO DUCT IO N O R USE O F THIS DESIG N BY O THERS ISPERMISSIBLE O NL Y IF EXPRESSLY AUTHORISED IN WRITINGBY AERIAL FACIL ITIES LTD.NO DECIM AL PL ACE ± 1 mmONE DECIMAL PL ACE ± 0.3mmTWO DECIMAL PL ACES ± 0.1mmAL L DIMENSIO NS ARE IN m mUNL ESS OTHERWISE STATEDCHKDDRAWN APPDDAT ET O L ERANCES SCALEEnglandCUST O MER DRAWING .NoTITLE3AUPLINK CHANNELS (4U CHASSIS)OUTLINE DRAWING50-0637941:41AMNR 22/09/03PRODUCTION ISSUE22/09/03MNREARTH STUDE (SMA)F (SMA)ALARMFUSE T3.15ADC INPUTB (SMA)ALARMPOWERPART No : 50-063704RB BB
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-27 of 514.5 Drg. Nō. 50-063795, Tunnel Side Duplexer Shelf Outline DrawingLim itedAe ria l Fa c i litie s177.50443.00400.00171.50482.60BYDAT EDES CRIP TIO NNoISSUETHIRD ANGL E PRO JECTION123456789ABCDEF1 23456789ABCDEFFax : 01494 777002Tel : 01494 777000Aerial Facilities LimitedTHIS IS A PROPRIETARY DESIGN OF AERIAL FACILITIES L TD.REP RO DUCT IO N O R USE O F THIS DESIG N BY O THERS ISPERMISSIBLE O NL Y IF EXPRESSLY AUTHORISED IN WRITINGBY AERIAL FACIL ITIES LTD.NO DECIM AL PL ACE ± 1 mmONE DECIMAL PL ACE ± 0.3mmTWO DECIMAL PL ACES ± 0.1mmAL L DIMENSIO NS ARE IN m mUNL ESS OTHERWISE STATEDCHKDDRAWN APPDDAT ET O L ERANCES SCALEEnglandCUST O MER DRAWING .NoTITLE3ATUNNEL SIDE DUPLEXER/PA (4U CHASSIS)OUTLINE DRAWING50-0637951:41AMNR 22/09/03PRODUCTION ISSUE22/09/03MNREARTH STUDATTENUATORSWITCHESD (SMA)E (SMA)LEAKY FEEDER('N'TYPE)ALARMFUSE T10ADC INPUTALARMPOWERPART No : 50-063705RB BB
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-28 of 514.6 Drg. Nō. 50-063796, UHF Simplex Shelf Outline DrawingLim itedAe ria l Fa c i litie s177.50443.00400.00171.50482.60BYDAT EDES CRIP TIO NNoISSUETHIRD ANGL E PRO JECTION123456789ABCDEF1 23456789ABCDEFFax : 01494 777002Tel : 01494 777000Aerial Facilities LimitedTHIS IS A PROPRIETARY DESIGN OF AERIAL FACILITIES L TD.REP RO DUCT IO N O R USE O F THIS DESIG N BY O THERS ISPERMISSIBLE O NL Y IF EXPRESSLY AUTHORISED IN WRITINGBY AERIAL FACIL ITIES LTD.NO DECIM AL PL ACE ± 1 mmONE DECIMAL PL ACE ± 0.3mmTWO DECIMAL PL ACES ± 0.1mmAL L DIMENSIO NS ARE IN m mUNL ESS OTHERWISE STATEDCHKDDRAWN APPDDAT ET O L ERANCES SCALEEnglandCUST O MER DRAWING .NoTITLE3AUHF SIMPLEX (4U CHASSIS)OUTLINE DRAWING50-0637961:41AMNR 22/09/03PRODUCTION ISSUE22/09/03MNREARTH STUDA (SMA)D (SMA)ALARMFUSE T3.15ADC INPUTLEAKY FEEDER('N'TY PE)BASE 1('N'TYPE)ALARMPOWERPART No : 50-063706RB BB
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-29 of 514.7 Drg. Nō. 50-063797, Power Supply Shelf Outline DrawingLim itedAe ria l Fa c i litie s177.50393.00350.00350.00171.50482.60BYDAT EDES CRIP TIO NNoISSUETHIRD ANGL E PRO JECTION123456789ABCDEF1 23456789ABCDEFFax : 01494 777002Tel : 01494 777000Aerial Facilities LimitedTHIS IS A PROPRIETARY DESIGN OF AERIAL FACILITIES L TD.REP RO DUCT IO N O R USE O F THIS DESIG N BY O THERS ISPERMISSIBLE O NL Y IF EXPRESSLY AUTHORISED IN WRITINGBY AERIAL FACIL ITIES LTD.NO DECIM AL PL ACE ± 1 mmONE DECIMAL PL ACE ± 0.3mmTWO DECIMAL PL ACES ± 0.1mmAL L DIMENSIO NS ARE IN m mUNL ESS OTHERWISE STATEDCHKDDRAWN APPDDAT ET O L ERANCES SCALEEnglandCUST O MER DRAWING .NoTITLE3APOWER SUPPLY UNIT (4U CHASSIS)OUTLINE DRAWING50-0637971:41AMNR 22/09/03PRODUCTION ISSUE MNR22/09/03ONOFF430.00MAINSTRIPSWITCH110/125V ACINPUTEARTH STUDALARMS24V DCOUTP UTPART No : 50-063707RB BB
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-30 of 515. SUB-UNIT MODULES5.1 UHF Duplex Shelf 50-0637025.1.1 Bandpass Filter (02-010701)5.1.1.1 DescriptionThe bandpass filters are multi-section designs with a bandwidth dependent upon thepassband frequencies, (both tuned to customer requirements). The response shape is basicallyChebyshev with a passband design ripple of 0.1dB. The filters are of combline design, andare carefully aligned during manufacture in order to optimise the insertion loss, VSWR andintermodulation characteristics of the unit. The tuned elements are silver-plated to reducesurface ohmic losses and maintain a good VSWR figure and 50Ω load at the input and outputports.Being passive devices, the bandpass filters should have an extremely long operational lifeand require no maintenance. Should a filter be suspect, it is usually most time efficient toreplace the module rather than attempt repair or re-tuning.5.1.1.2 Technical SpecificationPARAMETER SPECIFICATIONResponse Type: Chebyshev457.0-458.5MHz (Downlink)Frequency Range: 452.0-453.5MHz (Uplink)Bandwidth: 1.5 MHzNumber of Sections: 5Insertion Loss: 1.7 dB (typical)VSWR: better than 1.2:1Connectors: SMAPower Handling: 100W maxoperation: -30°C to +60°CTemperature range storage: -40°C to +70°CWeight: 3 kg (typical)
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-31 of 515.1.2 3dB UHF Splitter (05-002603)5.1.2.1 DescriptionThe 3dB Splitter/Combiner used is a device for accurately matching two or more RF signalsto single or multiple ports, whilst maintaining an accurate 50Ω load to all inputs/outputsover the specified frequency range and ensuring that the VSWR and insertion losses are keptto a minimum.5.1.2.2 Technical SpecificationPARAMETER SPECIFICATIONFrequency Range: 380 - 520 MHzBandwidth: 140 MHzInputs: 1Outputs: 2Insertion Loss: 3.5 dB (typical)Isolation: >18 dBReturn Loss (VSWR) – Input: Better than 1.3:1Impedance: 50 ςPower Rating – Splitter: 20 WattsPower Rating – Combiner: 0.5 WattConnectors: SMA femaleWeight: 200 gm (approximately)
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-32 of 515.1.3 Ferrite Isolator (08-930003)5.1.3.1 DescriptionThe purpose of fitting an isolator to the output of a transmitter in a multi-transmitterenvironment 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 createintermodulation products, especially in the non-linear power amplifier output stages ofthe transmitters. Whilst this effect would not affect the intelligibility of the two originaltransmissions, a further two new transmissions would be created which could themselvescause interference to third party users. In this case it is to isolate the duplex and simplexuplink power amplifiers from inter-modulating each other.A ferrite-isolator, (or junction circulator, as it is sometimes known) generally consists ofseveral major components; for example a ferrite region, a magnetic circuit and matchingcircuitry which can form a three port isolator.The ferrite isolator is a ferro-magnetic device, which has directional properties. In theforward direction, RF arriving at the input is passed to the output with minimalattenuation. In the reverse direction, RF arriving at the output due to reflected powerfrom a badly matched load, or due to coupling with another transmitter, is routed into anRF load where it is absorbed. The isolator therefore functions to prevent reflected RFenergy reaching the power amplifier where it could cause intermodulation products orpremature device failure.Ferrite materials form the active part of the junction in which the actual circulation signalflow occurs. When a signal encounters a ferrite disk (e.g. port l) biased with a magneticfield, it divides and part of the signal flows in a clockwise direction, while a portion ofthe signal travels in the counter-clockwise direction, each with a different velocity. Thecombined effects of the two rotating signals, create a standing wave around the perimeterof the ferrite disk. By choosing the proper value of the ferrite’s magnetisation and themagnetic field, the standing wave can be made to create a voltage null at port 3, such thatno power is transferred to it and a peak voltage at port 2, transferring maximum power toit from port l. If a termination is placed on port 3 to absorb the signal flow in the reversedirection the device functions as an isolator.
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-33 of 515.1.4 ¼Watt 0- -30dB Switched Attenuator (10-000701)5.1.4.1 General ApplicationIn many practical applications for Cell Enhancers etc., the gain in each path is found to beexcessive. Therefore, provision is made within the unit for the setting of attenuation ineach path, to reduce the gain.5.1.4.2 Switched AttenuatorsThe 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 fourminiature toggle switches on the top of each unit. Each switch is clearly marked with theattenuation it provides, and the total attenuation in line is the sum of the values switchedin. They are designed to maintain an accurate 50Ω impedance over their operatingfrequency at both input and output.
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-34 of 515.1.5 Low Noise Amplifiers (11-006102, 11-007302 & 11-007402)5.1.5.1 DescriptionThe low noise amplifiers used are double stage solid-state low-noise amplifiers. 11-006102 is a low noise amplifier with a 1Watt power device in its final stage, enabling it tobe used as a driver for the 20W power amplifier. Class A circuitry is used in the units toensure excellent linearity over a very wide dynamic range. The two active devices arevery moderately rated to provide a long trouble-free working life. There are noadjustments on these amplifiers, and in the unlikely event of failure the entire amplifiershould be replaced.5.1.5.2 Technical Specification, 11-007302PARAMETER SPECIFICATIONFrequency range: 380-500MHzBandwidth: <140MHzGain: 20-22dB1dB Compression Point: +23.5dB (typical)3rd order intercept: +36dB (typical)Input/Output return loss: >20dBNoise figure: <1.3dBConnectors: SMA femaleSupply: 200-230mA @ 24V DCoperational: -30°C to +60°CTemperature range: storage: -30°C to +70°CWeight: <300gmSize: 90 x 55 x 30.2mm (case only)
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-35 of 515.1.5.3 Technical Specification, 11-007402PARAMETER SPECIFICATIONFrequency range: 380-500MHzBandwidth: <140MHzGain: 30-32dB1dB Compression Point: +22dBm (typical)3rd order intercept: +34-35dBm (typical)Input/Output return loss: >20dBNoise figure: <1.3dBConnectors: SMA femaleSupply: 300-330mA @ 24V DCWeight: <300gmSize: 90 x 55 x 30.2mm (case only)operation: -30°C to +60°CTemperature range storage: -40°C to +70°5.1.5.4 Technical Specification, 11-006102Frequency range: 380-500MHzBandwidth: <150MHzGain: 15dB (typical)1dB compression point: +31dBmIP3: +46dBmI/O return loss: >18dBNoise figure: <1.3dBSupply requirement: 10 – 24V, DCConsumption: 510-540mA @ (10 – 24V)operation: -30°C to +60°CTemperature range storage: -40°C to +70°
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-36 of 515.1.6 20W Power Amplifier (12-016301)5.1.6.1 DescriptionThis amplifier is a Class A 20W power amplifier from 380MHz to 470MHz in a 1 stagebalanced configuration. It demonstrates a very high linearity and a very good input/outputreturn loss. A built in a Current Fault Alarm Function monitors DC conditions to bothtransistor collectors and gives an alarm upon bias change.Its housing is a machined aluminium case (Alocrom 1200 finish) with SMA connectorsfor the RF input/output and a D-Type connector for the power supply and the CurrentFault Alarm Function.5.1.6.2 Technical SpecificationPARAMETER SPECIFICATIONFrequency range: 380-470MHzSmall signal gain: 23dBGain flatness: ±1.7dBI/O Return loss: >18dB1dB compression point: +43dBmOIP3: +55dBmSupply voltage: 24V DCSupply current: 3.8Amps (typical)Temperature range operational: -30°C to +60°Cstorage: -40°C to +70°CWeight: <2kg (no heatsink)
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-37 of 515.2 5 Channel UHF Downlink Shelf 50-0637035.2.1 3dB Splitter 905-002603) See section 5.1.25.2.2 3 Way Splitter/Combiner (05-003803)5.2.2.1 DescriptionThe 3 way Splitter/Combiner used is a ‘Zinger’ type design for accurately matching threeRF signals to a single port, whilst maintaining an accurate balance between ports, andensuring that the VSWR and insertion losses attain the best possible specification. They arespecialist passive devices and must be replaced in the unlikely event of failure.5.2.2.2 Technical SpecificationPARAMETER SPECIFICATIONFrequency Range: 380 - 520 MHzBandwidth: 140 MHz (typical)Inputs: 3Outputs: 1Insertion Loss: 5.2 dB (typical)Isolation: >18 dBReturn Loss (VSWR) – Input: Better than 1.35:1Return Loss (VSWR) – Output: Better than 1.35:1Impedance: 50 ςPower Rating – Splitter: 20 WattsPower Rating – Combiner: 0.5 WattConnectors: SMA femaleSize: 54 x 44 x 21 mm (includingconnectors)Weight: 200 gm (approximately)
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-38 of 515.2.3 Dual DC/DC Converter (13-001803)5.2.3.1 DescriptionThis unit is employed where it is necessary to derive two fixed voltage power supply railsfrom 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 of1.5A output current. Note that at full output current, the dissipation of the device mustremain 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 onwhich the device is mounted.5.2.3.2 Technical SpecificationPARAMETER SPECIFICATIONOperating Voltage: 21 – 27V DCOutput Voltage: 12V & 12V (typical)Output Current: 1.0A (maximum per o/p)Connections: Screw Terminal Blockoperational: -30ΒC to +60ΒCTemperatureRange storage -40ΒC to +70ΒCPCB Size: 85 x 63mm
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-39 of 515.2.4 Channel Selective Module (17-003006)5.2.4.1 DescriptionThe channel selectivity module is employed when the Cell Enhancer requirement dictatesthat very narrow bandwidths (single operating channels), must be selected from withinthe operating passband. One channel selectivity module is required for each channel.The Channel Selectivity Module is an Up/Down frequency converter that mixes theincoming channel frequency with a synthesised local oscillator, so that it is down-converted to an Intermediate Frequency (IF) in the upper HF range. An eight pole crystalfilter in the IF amplifier provides the required selectivity to define the operating passbandof the Cell Enhancer to a single PMR channel. The same local oscillator then converts theselected IF signal back to the channel frequency.Selectivity is obtained from a fixed bandwidth block filter operating at an intermediatefrequency (IF) in the low VHF range. This filter may be internal to the channel selectivitymodule (Crystal or SAW filter) or an externally mounted bandpass filter, (LC or HelicalResonator). Various IF bandwidths can therefore be accommodated. A synthesized LocalOscillator is employed in conjunction with high performance frequency mixers, totranslate between the signal frequency and IF.The operating frequency of each channel selectivity module is set by the programming ofchannel 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 toremotely set channel frequencies.Automatic Level Control (ALC) is provided within each channel selectivity module suchthat the output level is held constant for high level input signals. This feature preventssaturation 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 isprogrammed.The channel selectivity module is extremely complex and, with the exception of channelfrequency programming within the design bandwidth, it cannot be adjusted or repairedwithout extensive laboratory facilities and the necessary specialised personnel. If a faultis suspected with any channel selectivity module it should be tested by substitution andthe complete, suspect module should then be returned to AFL for investigation.
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-40 of 515.2.4.2 Drg. Nō. 17-003080, Generic Channel Module Block Diagram
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-41 of 515.2.5 12V Relay Board (20-001601)5.2.5.1 DescriptionThe General Purpose Relay Board allows the inversion of signals and the isolation ofcircuits. It is equipped with two dual pole change-over relays RL1 and RL2, withcompletely isolated wiring, accessed via screw terminals.Both relays are provided with polarity protection diodes and diodes for suppressing thetransients caused by "flywheel effect" which can destroy switching transistors or inducespikes on neighbouring circuits. It’s common use is to amalgamate all the alarm signals intoone, 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 ofrelays fitted at RL1 and RL2.5.2.5.2 Technical SpecificationPARAMETER SPECIFICATIONOperating voltage: 8 to 30V (floating earth)Alarm Threshold: Vcc - 1.20 volt +15%Alarm output relay contacts:Max. switch current: 1.0AmpMax. switch volts: 120Vdc/60VAMax. switch power: 24W/60VAMin. switch load: 10.0µA/10.0mVRelay isolation: 1.5kVMechanical life: >2x107 operationsRelay approval: BT type 56Connector details: Screw terminalsoperational: :-30°C to +60°CTemperature range storage: :-40°C to +70°C
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-42 of 515.3 UHF Uplink 4 Channel Shelf 50-0637045.3.1 Four Way Splitter (05-003401)5.3.1.1 DescriptionThe Splitter/Combiner used is a device for accurately matching two or more RF signals tosingle or multiple ports, whilst maintaining an accurate 50Ω load to all inputs/outputs andensuring that the VSWR and insertion losses are kept to a minimum. Any unused portswill be terminated with an appropriate 50Ω load.5.3.1.2 Technical Specification 05-003401PARAMETER SPECIFICATIONFrequency range: 70 – 250MHzBandwidth: 180MHzRejection: >14dBInsertion loss: 6.5dB (in band, typical)Connectors: SMAWeight: <1.5kgoperational:-30ΒC to +60ΒCTemperaturerange: storage -40ΒC to +70ΒCAll other modules in this shelf are described elsewhere in this document.5.4 UHF Duplex/PA Shelf 50-063705All modules in this shelf are described elsewhere in this document.
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-43 of 515.5 UHF Simplex Channel Shelf 60-0637065.5.1 Simplex Controller PCB (13-002811)5.5.1.1 DescriptionThe Simplex controller logic PCB monitors the receiver squelch output for a signal changeand activates the supply switching for either the uplink or down link path accordingly. Innormal operation, the low level Rx path is activated, any the associated Tx path is switchedoff. 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 theopposite path Rx LNA’s and switches on the power to the output power stage. In order toprevent the power stage noise blocking the opposite path’s low level receiver, the poweramplifier is normally muted.5.5.2 ALC Attenuator Module (17-001201)5.5.2.1 DescriptionThe AFL Automatic Gain Control system consists of two units, a detector/amplifier and anattenuator. The detector/amplifier unit is inserted in the RF path on the output of the poweramplifier, and the attenuator is situated in the RF path between the 1st and 2nd stages ofamplification. However, in this case only the attenuator is employed as part of the simplexcontrol systemThe attenuator comprises a 50Ω P.I.N diode, voltage-variable attenuator with a range of 3 to30dB. The attenuation is controlled by a DC voltage which is derived in this instance fromthe simplex controller board.5.5.3 Simplex Squelch Controller PCB (17-002802)5.5.3.1 DescriptionThe difference in signal levels between the up and downlink paths means that the channelmodules would latch onto any signal in the band rather than a signal at the desired channelfrequency. This is achieved, in part, to having the simplex controller apply maximumattenuation (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 CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-44 of 515.6 Power Supply Shelf 50-0637075.6.1 24V, 400W Power Supply Pack (96-300054)5.6.1.1 DescriptionThe power supply unit is a switched-mode type capable of supplying 24V DC at 17.0Ampscontinuously. Equipment of this type typically requires approximately 10.0 Amps at 24VDC, 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 outputvoltage from the power supply may be measured on its output terminals. This is typically setto 24.5V using the multi-turn potentiometer mounted close to the DC output studs on thePSU PCB.All the PSU’s used in AFL Cell Enhancers are capable of operation from either 110 or220V nominal AC supplies. The line voltage is sensed automatically, so no adjustment orlink setting is needed by the operator.5.6.1.1 Technical SpecificationAC Input Supply110 or 220V nominalVoltages: 90 to 132 or 180 to 264V (absolute limits)Frequency: 47 to 63HzDC Output Supply:24V DC (nominal)Voltage: 20 to 28V (absolute limits)Maximum current: 17AAll other modules in this shelf are described elsewhere in this document.
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-45 of 516. INSTALLATION6.1 Initial Installation RecordWhen 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 shouldthese figures be needed for future reference or diagnosis.Installation will be a matter of securing each shelf into its appropriate place in the rackcabinet, connecting all the cables (RF, AC, DC and alarm) to their correct ports/connectorsand system testing (at the customer’s discretion) to prove the original specification. Powershould 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 CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-46 of 517. MAINTENANCE7.1 General Procedures7.1.1 Fault FindingIn the event that the performance of the system is suspect, a methodical and logical approachto the problem will reveal the cause of the difficulty. The System consists of modules withina wall mounted, environmentally protected enclosureTransmissions from the main base stations are passed though the system to the mobile radioequipment; this could be a handheld radio or a transceiver in a vehicle. This path is referredto as the downlink. The return signal path from the mobile radio equipment to the basestation is referred to as the uplink.The first operation is to check the alarms of each of the active units and determine that thepower 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 beilluminated, while the red alarm indicator should be off.If an Alarm is on, then that individual shelf must be removed and individually tested againstthe original test specification.The individual amplifier units within the shelf have a green LED showing through a hole intheir 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 isapparent use a spectrum analyser to measure the incoming signal level at the input and thenafter reconnecting the amplifier input, measure the output level. Consult with the systemdiagram 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 benecessary to test the system in a systematic manner to confirm correct operation.
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-47 of 517.1.2 DownlinkConfirm that there is a signal at the expected frequency and strength from the base station. Ifthis is not present then the fault may lay outside the system. To confirm this, inject adownlink frequency signal from a known source at the master site BTS input and check foroutput at the remote site feeder output.If a signal is not received at the output it will be necessary to follow the downlink paththrough the system to find a point at which the signal is lost. The expected downlink outputfor the given input can be found in the end-to-end test specification.7.1.3 UplinkTesting the uplink involves a similar procedure to the downlink except that the frequenciesused are those transmitted by the mobile equipment.7.1.4 Fault repairOnce a faulty component has been identified, a decision must be made on the appropriatecourse to carry out a repair. A competent engineer can quickly remedy typical faults such asfaulty connections or cables. The exceptions to this are cable assemblies connectingbandpass filter assemblies that are manufactured to critical lengths to maintain a 50-ohmsystem. Care should be taken when replacing cables or connectors to ensure that items are ofthe correct specification. The repair of component modules such as amplifiers and bandpassfilters will not usually be possible in the field, as they frequently require specialistknowledge and test equipment to ensure correct operation. It is recommended that items ofthis type are replaced with a spare unit and the faulty unit returned to AFL for repair.
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-48 of 517.1.5 Checking serviceFollowing the repair of any part of the system it is recommended that a full end-to-end test iscarried out in accordance with the test specification and that the coverage is checked bysurvey.It is important to bear in mind that the system includes a radiating cable network and basestations that may be faulty or may have been damaged.7.1.6 Service SupportAdvice and assistance with maintaining and servicing this system are available by contactingAerial Facilities Ltd.7.2 Tools & Test EquipmentThe minimum tools and test equipment needed to successfully service this AFL product areas follows:-Spectrum analyser: 100kHz to 2GHz (Dynamic range = 90dB).Signal Generator: 30MHz to 2GHz (-120dBm to 0dBm o/p level).Attenuator: 20dB, 10W, DC-2GHz, (N male – N female).Test Antenna: Yagi or dipole for operating frequency.Digital multi-meter: 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.
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-49 of 517.3 Care of Modules7.3.1 General CommentsMany of the active modules contain semiconductor devices utilising MOS technology, whichcan be damaged by electrostatic discharge. Correct handling of such modules is mandatory toensure their long-term reliability.To prevent damage to a module, it must be withdrawn/inserted with care. The module mayhave 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:1 Remove power to the unit2 Remove all visible connectors (RF, DC & alarm)3 Release module retaining screws.4 Slowly but firmly, pull the module straight out of its position. Take care not to twist/turnthe module during withdrawal. (When the module is loose, care may be needed, as theremay be concealed connections underneath).7.3.3 Module Replacement (general):1 Carefully align the module into its location then slowly push the module directly straightinto its position, taking care not to twist/turn it during insertion.2 Reconnect all connectors, RF, alarm, power etc.,(concealed connectors may have to beconnected first).3 Replace retaining screws (if any).4 Double-check all connections before applying power.7.3.4 Power Amplifiers1) 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 alarmconnector.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 inits entirety. On certain types of amplifier the alarm board is not mounted on a dedicatedmounting plate; in this case it will have to firstly be removed by unscrewing it from themounting pillars, in most cases, the pillars will not have not have to be removed beforelifting the amplifier.
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-50 of 515) If the amplifier to be removed has a heatsink attached, there may be several differentways it can have been assembled. The most commonly used method, is screws throughthe front of the heatsink to threaded screw holes (or nuts and bolts), into the amplifierwithin the main case. If the heatsink is mounted on the rear of the main case (e.g., againsta wall in the case of wall mounted enclosures), then the fixing method for the heatsinkwill be from within the case, (otherwise the enclosure would have to be removed from thewall in order to remove the heatsink).When the heatsink has been removed, the amplifier may be unscrewed from the maincasing 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 casejoint and also between the amplifier and the main case.7.3.5 Low Power Amplifier Replacement1 Disconnect the mains power supply and disconnect the 24V dc supply connector for theLPA.2 Disconnect the RF input and output cables from the LPA.3 Disconnect the alarm connector.4 Remove the alarm monitoring wires from (D type connector) pins 9 and 10.5 Remove the LPA module by removing the four retaining screws, replace with a newLPA module and secure it with the screws.6 Connect the RF cables to the LPA input and output connectors. Reconnect the wires tothe alarm board connector pins 9 and 10.7 Reconnect the DC supply connector and turn the mains switch on.Note: Tighten SMA connectors using only a dedicated SMA torque spanner. IfSMA connectors are over-tightened, irreparable damage will occur. . Do not useadjustable pliers to loosen/tighten SMA connectors.Also take care not to drop or knock the module as this can damage (or misalign in thecase of tuned passive modules) sensitive internal components. Always store the modulesin an environmentally friendly location7.3.6 Module Transportation:To maintain the operation, performance and reliability of any module it must be stored andtransported correctly. Any module not installed in a whole system must be kept in an anti-static bag or container. These bags or containers are normally identified by being pink orblack, and are often marked with an ESD label. Any module sent back to AFL forinvestigation/repair must be so protected. Please contact AFL’s quality department beforereturning a module.
Denver Channelised CEUser/Maintenance HandbookHandbook Nō.-50-063708HBKM Issue No:-2 Date:-03/11/2003 Page:-51 of 51APPENDIX A INITIAL EQUIPMENT SET-UP CALCULATIONSGENERAL INFORMATIONSite Name: Client Name:Date: AFL Equip. Model Nō.ANTENNA SYSTEMSModel Gain Azimuth CommentsA - Service AntennaB – Donor AntennaType Loss Length CommentsC – Service FeederD – Donor FeederINITIAL PARAMETERSE – CE Output Power dBmF – Antenna Isolation dBG – Input signal level from donor BTS dBmOperating Voltage VDOWNLINK CALCULATIONSParameter Comments ValueInput signal level (G)dBmCE max. o/p power (E)dBmGain setting E - G dBIsolation required (Gain + 10dB) dBService antenna gain (A)dBService antenna feeder loss (C)dBEffective radiated power (ERP) E+A-C dBmAttenuator setting CE gain-gain setting dBIf the input signal level in the uplink path is known and steady, use the following calculationtable to determine the gain setting. If the CE features Automatic Gain Control the attenuatorshould be set to zero and if not, then the attenuation setting for both uplink and downlinkshould be similar.UPLINK CALCULATIONSParameter Comments ValueInput signal level dBmCE max. o/p power (E)dBmGain setting dBRequired isolation dBDonor antenna gain (B)dBDonor antenna feeder loss (D)dBEffective radiated power (ERP)E+B-D dBmAttenuator setting (CE gain-gain setting) dB

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