PBE Europe as Axell Wireless 60-1377SERIES UHF FO Remote Repeater type 60-1377SERIES User Manual

Axell Wireless UHF FO Remote Repeater type 60-1377SERIES

User manual

UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-1 of 38 UHF 10W Fibre Fed Remote Site User Handbook For EMS Wireless AFL Works Order N.: Q112299 AFL product part N.: 60-137701 (10W FO Remote)
UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-2 of 38 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. SAFETY CONSIDERATIONS.........................................................................................................8 1.1 Earthing of Equipment ................................................................................................................................ 8 1.2 Electric Shock Hazard.................................................................................................................................. 8 1.3 RF Radiation Hazard ................................................................................................................................... 9 1.4 Chemical Hazard ........................................................................................................................................ 10 1.5 Laser safety ................................................................................................................................................. 11 1.6 Emergency Contact Numbers.................................................................................................................... 11 2. SYSTEM OVERVIEW....................................................................................................................12 3. REMOTE SITE BDA (60-137701) ..................................................................................................13 3.1 Remote Site 10Watt BDA Shelf (60-137702)............................................................................................ 13 3.1.P Remote Site 10W BDA Shelf Photographs................................................................................................ 13 3.1.1 Remote Site 10W BDA Description .......................................................................................................... 14 3.1.2 Remote Site 10W BDA Electrical/Mechanical Specification.................................................................... 14 3.1.3 Remote Site 10W BDA Electrical/Mechanical Specification.................................................................... 15 3.1.4 Remote Site 10W BDA System Diagram, Drg. Nō. 60-137780 ................................................................ 16 3.1.5 Remote Site 10W BDA Shelf 60-137702 Parts List ..................................................................................17 4. SUB-UNIT MODULES....................................................................................................................18 4.1 Bandpass Filters (02-007302)..................................................................................................................... 18 4.1.1 Description ............................................................................................................................................... 18 4.1.2 Technical Specification............................................................................................................................. 18 4.1.3 Drg. Nō. 02-007302, Filter General Assembly Drawing ......................................................................... 19 4.2 Switched Attenuator (10-000901).............................................................................................................. 20 4.2.1 General Application ................................................................................................................................. 20 4.2.2 Switched Attenuators ................................................................................................................................ 20 4.2.3 Drg. Nō. 10-000901, 0-15dB Switched Attenuator General Assembly Drawing ..................................... 21 4.3 Low Noise Amplifiers (11-007302 & 11-007402)...................................................................................... 22 4.3.1 Description ............................................................................................................................................... 22 4.3.2 Technical Specification (11-007302)........................................................................................................ 22 4.3.3 Technical Specification (11-007402)........................................................................................................ 22 4.3.4 LNA ‘D’ Connector Pin-out details.......................................................................................................... 23 4.3.5 Drg. Nō. 11-007302, LNA Assembly With Alarm Relay........................................................................... 24 4.3.6 Drg. Nō. 11-007402, LNA Assembly With Alarm Relay........................................................................... 25 4.4 1Watt Low Power Amplifier (11-007901)................................................................................................. 26 4.4.1 Description ............................................................................................................................................... 26 4.4.2 Technical Specifications ........................................................................................................................... 26 4.4.3 Drg. Nō. 11-007901, 1W LPA Assembly Drawing ................................................................................... 27 4.5 10W Power Amplifier (12-016302)............................................................................................................ 28 4.5.1 Description ............................................................................................................................................... 28 4.5.2 Technical Specification............................................................................................................................. 28 4.6 Wide Dynamic Range AGC (17-001105, Det. & 17-001201, Atten.)...................................................... 29 4.6.1 Description ............................................................................................................................................... 29 4.6.2 Technical Specification............................................................................................................................. 30 4.6.3 Drg. Nō. 17-001105, ACG Detector Assembly......................................................................................... 31 4.6.4 Drg. Nō. 17-001201, AGC Attenuator Assembly Drawing....................................................................... 32 4.7 24V Single Relay Board (80-008901) ........................................................................................................ 33 4.7.1 Description ............................................................................................................................................... 33
UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-3 of 38 4.7.2 12V Relay PCB Fabrication Drawing...................................................................................................... 34 4.7.3 12V Relay Board Circuit Diagram ........................................................................................................... 35 4.8 DC/DC Converter, 24V in, 12V 8A out (13-003011) ............................................................................... 36 4.8.1 Description ............................................................................................................................................... 36 4.8.2 Technical Specification............................................................................................................................. 36 4.9 JWS150-24/A PSU (96-300060) ................................................................................................................. 37 4.9.1 Description ............................................................................................................................................... 37 4.9.2 Technical Specification............................................................................................................................. 37 5. INSTALLATION .............................................................................................................................38 5.1 Initial Installation Record.......................................................................................................................... 38 5.2 Installation & Attenuator Settings............................................................................................................ 38
UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-4 of 38 AMENDMENT LIST RECORD SHEET Issue Nō. Date Incorporated by Page No.’s Amended Reason for new issue A 03/02/05 CMH 1st Draft 1 25/05/2005 CMH 1st Issue Document Ref:-60-137701HBK
UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-5 of 38 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 BS EN ISO 9001:2000 and to the R&TTE Directive of the European Parliament. Copies of the relevant certificates and the company Quality Manual can be supplied on application to the Quality Manager. This document fulfils the relevant requirements of Article 6 of the R&TTE Directive. 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.
UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-6 of 38 Glossary of Terms Repeater or Cell Enhancer A Radio Frequency (RF) amplifier which can simultaneously amplify and re-broadcast Mobile Station (MS) and Base Transceiver Station (BTS) signals. Band Selective Repeater A Cell Enhancer designed for operation on a range of channels within a specified frequency band. Channel Selective Repeater 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. BTS Base Transceiver Station C/NR Carrier-to-Noise Ratio Downlink (D.L.) RF signals transmitted from the BTS and to the MS Uplink (U.L.) RF signals transmitted from the MS to the BTS EMC Electromagnetic Compatibility GND Ground DC Direct Current AC Alternating Current ID Identification Number OIP3 Output Third Order Intercept Point = RFout +(C/I)/2 LED Light Emitting Diode M.S. Mobile Station N/A Not Applicable N/C No Connection NF Noise Figure RF Radio Frequency Rx Receiver Tx Transmitter S/N Serial Number
UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-7 of 38 Key to AFL RF Module Drawing Symbols
UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-8 of 38 1. SAFETY CONSIDERATIONS 1.1 Earthing of Equipment Cell Enhancers supplied from the mains must be connected to grounded outlets and earthed in conformity with appropriate local, national and international electricity supply and safety regulations. 1.2 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.
UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-9 of 38 1.3 RF Radiation Hazard RF radiation, (especially at UHF frequencies) arising from transmitter outputs connected to AFL’s equipment, must be considered a safety hazard. This condition might only occur in the event of cable disconnection, or because a ‘spare’ output has been left 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 50, and that of free space at 377, which would severely mitigate against the efficient radiation of RF power. Radio frequency burns could also be a hazard, if any RF power carrying components were to be carelessly touched! Antenna positions should be chosen to comply with requirements (both local & statutory) regarding exposure of personnel to RF radiation. When connected to an antenna, the unit is capable of producing RF field strengths, which may exceed guideline safe values especially if used with antennas having appreciable gain. In this regard the use of directional antennas with backscreens and a strict site rule that personnel must remain behind the screen while the RF power is on, is strongly recommended. Where the equipment is used near power lines, or in association with temporary masts not having lightning protection, the use of a safety earth connected to the case-earthing bolt is strongly advised.
UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-10 of 38 1.4 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.
UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-11 of 38 1.5 Laser safety General good working practices adapted from EN60825-2: 1994 “Do not stare with unprotected eyes or with any unapproved optical device at the fibre ends or connector faces or point them at other people.” “Use only approved filtered or attenuating viewing aids.” “Any single or multiple fibre end or ends found not to be terminated (for example, matched, spliced) shall be individually or collectively covered when not being worked on. They shall not be readily visible and sharp ends shall not be exposed.” “When using test cords, the optical power source shall be the last connected and the first disconnected.” “Use only approved methods for cleaning and preparing optical fibres and optical connectors.” Always keep optical connectors covered to avoid physical damage Do not allow any dirt/foreign material ingress on the optical connector bulkheads. The optical fibre jumper cable maximum bend radius is 3cm, any smaller radii may result in optical cable breakage or excessive transmission losses. Caution: Do not get them wet, the FO units are NOT weather proof. 1.6 Emergency Contact Numbers The AFL Quality Department can be contacted on: Telephone +44 (0)1494 777000 Fax +44 (0)1494 777002 e-mail qa@aerial.co.uk
UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-12 of 38 2. SYSTEM OVERVIEW The equipment is manufactured in standard IP54 19” rack shelves and is powered by the local mains supply. No battery backup is fitted. The remote site receives the master site RF data via a dedicated fibre link. The downlink fibre signals are transmitted to the remote site using 1310nm wavelength laser and the uplink wavelength from remote to master site is 1550nm, using wave division multiplexing to differentiate between the wavelengths. This means that a single fibre cable can be used for both uplink and downlink, saving the considerable cost of an extra fibre cable between master and each remote site. The 10Watt output power remote BDA drives an air interfaced antenna for the local mobile coverage.
UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-13 of 38 3. REMOTE SITE BDA (60-137701) 3.1 Remote Site 10Watt BDA Shelf (60-137702) 3.1.P Remote Site 10W BDA Shelf Photographs
UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-14 of 38 3.1.1 Remote Site 10W BDA Description The remote site 10W Bi-Directional Amplifier receives downlink signals from the Fibre Optic shelf at port A and passes them through a bandpass filter tuned to the downlink passband (408-411MHz). From there the signal is amplified by a Low Noise Amplifier (+31dB) and a 0-15dB switched attenuator to a 10Watt power amplifier (22dB). A final bandpass filter completes the downlink path to the off-air antenna (port C). The uplink path starts at the off-air antenna (port C)and is passed first through a bandpass filter tuned to the uplink band (417-420MHz). A 20dB amplifier and switched attenuator amplify the signal by 20dB and the signal then passes through a final bandpass filter to the AGC attenuator. After the attenuator the signal is amplified to one Watt power to the AGC logarithmic detector giving this path a dynamic range of approximately 30dB. After the AGC detector the signal exits the shelf to the FO shelf at port B. 3.1.2 Remote Site 10W BDA Electrical/Mechanical Specification PARAMETER SPECIFICATION Downlink frequency range: 408–411MHz Uplink frequency range: 417-420MHz Port A: -10dBm (downlink input) Port B: 0dBm (uplink output) Approximate RF levels (BDA shelf): Port C: +38dBm (antenna output) Port A: 0dBm (downlink output) Approximate RF levels (FO shelf): Port B: 0dBm (uplink output) 6A max.@ 24V DC Power supply consumption: 1.0A max @ 12V DC Chassis height: 4U Chassis depth: 400mm (excluding handles & connectors IP protection: IP54 Impedance: 50 AGC level: 0dB Relative humidity range: 5-95% Alarms: 2 x LNA, 1W LPA, & 1 x 10W PA 1 & 2 (2 x LNA’s & LPA) Alarm connector outputs: 3 & 4 (1 x 10W PA) operation: -10%C to +60%C Temperature Range: storage: -20%C to +70%C
UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-15 of 38 3.1.3 Remote Site 10W BDA Electrical/Mechanical Specification PARAMETER SPECIFICATION Downlink frequency range: 408-411MHz Uplink frequency range: 417-420MHz Port A: -10dBm (downlink BDA input) Port B: -5dBm (uplink BDA output) Approximate RF levels: Port C: +38dBm (antenna BDA output) Downlink RF gain: 50dB Uplink RF gain: 55dB 6A max.@ 24V DC Power supply consumption: 1.0A max @ 12V DC Chassis height: 4U Chassis depth: 400mm (excluding handles & connectors IP protection: IP54 Mains power supply: 150W/24V (6.3A) Impedance: 50 AGC level: 0dB Relative humidity range: 5-95% Alarms: 2 x LNA, 1W LPA, & 1 x 10W PA 1 & 2 (2 x LNA’s & LPA) Alarm connector outputs: 3 & 4 (1 x 10W PA) operation:-10%C to +60%C Temperature Range: storage: -20%C to +70%C
UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-16 of 38 3.1.4 Remote Site 10W BDA System Diagram, Drg. N. 60-137780
UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-17 of 38 3.1.5 Remote Site 10W BDA Shelf 60-137702 Parts List AFL Part Nō. Part Description Qty. 02-007302 SDF C/L5P VAR.BW TOP SMA 40mm POST 4 10-000901 SW. ATTENUATOR 0.25W 0-15dB 2 11-007302 LNA. 380-500MHz 20dB (C/W RELAY) GA 1 11-007402 LNA. 380-500MHz 30dB (C/W RELAY) GA 1 11-007901 AMPLIFIER TETRA 1W 37dB GAIN ASS 1 12-005921 4U 10W PWR AMP HEATSINK 1 12-016302K PA 380-470MHz 10W CLASS A KIT 1 17-001105 CE AGC UNIT LOG DET/AMP ASSY (24v) 2 17-001201 C/E AGC UNIT ATTENUATOR ASSY 2 19-001021K 4U CHASSIS KIT (400mm deep) 1 80-008902 24V RELAY PCB ASSEMBLY 1 91-030002 N ADAPTOR PANEL FEMALE:FEMALE 3 91-130001 SMA ADAPT 'T' ALL FEMALE 3 GHz 1 91-500025 3 PIN RIGHT ANGLE FREE PLUG NC-X 1 91-510004 3 PIN PNL.MOUNT SOCKET NC-X 1 91-520001 PWR MAINS INL FIXED/SOLD.TERMS 1 91-600014 'D' 9 WAY SOCKET S/B (NON FILTERED) 3 91-600015 'D' 9 WAY PLUG S/B (NON FILTERED) 1 96-200024 DC/DC CONVERTER 18-36Vin/12Vout 5A 60W 1 96-300060 JWS150-24/A PSU 1 96-600003 INSULATING BOOT D.C. 1 96-700034 LED RED 5mm IP67 1 96-700035 LED GREEN 5mm IP67 1 96-920022 3A CIRCUIT BREAKER (ETA) 1
UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-18 of 38 4. SUB-UNIT MODULES 4.1 Bandpass Filters (02-007302) 4.1.1 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 50 load at the input and output ports. No adjustments should be attempted without full network sweep analysis facilities to monitor both insertion loss and VSWR simultaneously. 4.1.2 Technical Specification PARAMETER SPECIFICATION Response type: Chebyshev Frequency range: 350 – 500MHz (tuned to spec.) Bandwidth: 3.5 MHz (tuned to spec.) Number of sections: 5 Insertion loss: 1.2 dB VSWR: better than 1.2:1 Connectors: SMA Power handling: 100W max operation: -10°C to +60°C Temperature range storage: -20°C to +70°C Weight: 3 kg Size: 266 x 143 x 39.5mm
UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-19 of 38 4.1.3 Drg. N. 02-007302, Filter General Assembly Drawing BYDATEDESCRIPTIONNoISSUETHIRD ANGLE PROJECTION123456789ABCDEF123456789ABCDEF1A PRODUCTION ISSUE (CR1679)4/5/00DBS33122322IN 4 PLACES8325IN 5 PLACES18IN 9 PLACES19 284IN 2 PLACES11731201ASSEMBLEDVIEW OF PCBEXPLODED VIEW OF PCB SUB-ASSEMBLYDETAIL 1 (IN 2 PLACES)34IN 2 PLACES1628IN 2 PLACES17IN 2 PLACES151432IN 4 PLACES3423IN 2 PLACESDETAIL 1AFL33IN 2 PLACES22AFL22IN 2 PLACES302.ALL SOLDER JOINTS TO BE MADE USING24SOLDER MTETO PCBTel: (01494) 777000Fax: (01494) 777002Aerial Facilities LimitedTHIS IS A PROPRIETARY DESIGN OF AERIAL FACILITIES LTD.REPRO DUCTIO N O R USE O F THIS DESIGN BY O THERS ISPERMISSIBLE O NLY IF EXPRESSLY AUTHORISED IN WRITINGBY AERIAL FACILITIES LTD.NO DECIMAL PL ACE ± 1 mmONE DECIMAL PLACE ± 0.3mmTWO DECIMAL PLACES ± 0.1mmALL DIMENSIO NS ARE IN mmUNLESS OTHERWISE STATEDCHKDDRAWN APPDDATETO L ERANCES SCALEEnglandCUSTOMER DRAWING .NoTITLE3ASD COMBLINE FILTER 5P SMA 380MHz(VARIABLE BANDWIDTH) GENERAL ASSEMBLY02-0073021:15/5/00DBS1.IDENT LABEL TO BE SUPPLIED ANDCOMPLETED AT TEST,FIT CENTRALLYON LIDSEE NOTE.1CT BB
UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-20 of 38 4.2 Switched Attenuator (10-000901) 4.2.1 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. The attenuators are located between the first and second stage amplifiers, (fitting the attenuators in any other position would be detrimental to the noise and/or output power performance of the Cell Enhancer). 4.2.2 Switched Attenuators The AFL switched attenuators are available in two different types; 0 – 30dB in 2 dB steps, or 0 – 15dB in 1 dB steps (as in this case). The attenuation is simply set using the four miniature toggle switches on the top/side 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 50 impedance over their operating frequency at both input and output and have a low ‘0dB’ insertion loss, typically less than 0.3dB.
UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-21 of 38 4.2.3 Drg. N. 10-000901, 0-15dB Switched Attenuator General Assembly Drawing BYDATEDESCRIPTIONNoISSUEUSED ONFax (0494)764838Little Chalfont(0494)763636EnglandAerial Facilities LtdISSCUSTO MER DRG.NoTITLESCALETWO DECIMAL PLACES ± 0.1mmONE DECIMAL PLACE ± 0.3mmNO DECIMAL PL ACE ± 1mmT OL ERANCESBY AERIAL FACIL ITIES LTD.PERMISSIBLE ONLY IF EXPRESSLY AUTHORISED IN WRITINGREPRO DUCTIO N O R USE O F THIS DESIG N BY O THERS ISTHIS IS A PROPRIETARY DESIGN OF AERIAL FACIL ITIES LTD.UNLESS O THERWISE STATEDALL DIMENSIONS ARE IN mmAPPDCHKDDAT EDRAWN ATTENUATOR,0.25W,SWITCHED,0/15dB,ASSEMBLY 10-000901 1B1:1DJL 06/06/94A3R17R21R9R7R8R4R3R24R1R2ATT1R25R6R5R23ATT2R19R2010- 0725- 3 I ss. 3R15R13R14R10R16R11AFLR12ATT3R18ATT4R22R3R2R4R7R8R10R6R9R13R14R20R16R15R12R19R22R21R18ATT1 ATT2R5ATT3R11ATT4R17NOTES:1 PRODUCTION ISSUE6/6/94DJL1. USE THE FOLLOWING PROCEDURE TO FIT SWITCH, ITEM 11: INSTALL SWITCHES USING ONE NUT ONLY (ON OUTSIDE) ENSURE NUT IS FITTED WITH FLAT SIDE TO CASE. FIT PCB (ITEM 1) AS SHOWN ALLOWING SWITCH PINS TO PROJECT SOLDER PINS TO BOARD USING ITEM 262. INSTALL CONNECTORS, ITEM 9, USING ITEM TO COMPLETE ALL SOLDERING264920521 1111820941IN 2 POSNS IN 4 POSNSVIEW WITH COVER REMOVEDDO NOT TIGHTEN NUT AT THIS STAGE.THRO' BOARD. TIGHTEN DOWN PCB AND SWITCH FIXINGS.1A PRODUCTION ISSUE (CR0962)20/1/99SEW1B PCB ISSUE No CORRECTED30/3/01MRBMRB GB
UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-22 of 38 4.3 Low Noise Amplifiers (11-007302 & 11-007402) 4.3.1 Description The low noise amplifier used is a double stage solid-state low-noise amplifier. Class A circuitry is used in the unit 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 this amplifier, and in the unlikely event of failure then the entire amplifier should be replaced. Note that the two amplifiers use similar DC/bias circuits. 4.3.2 Technical Specification (11-007302) PARAMETER SPECIFICATION Frequency range: 380-500MHz Bandwidth: <140MHz Gain: 20-22dB 1dB Compression Point: +23.5dB (typical) 3rd order intercept: +36dB (typical) Input/Output return loss: >20dB Noise figure: <1.3dB Connectors: SMA female Supply: 200-230mA @ 10-24V DC operational: -10°C to +60°C Temperature range: storage: -20°C to +70°C Weight: <300gm Size: 90 x 55 x 30.2 (case only) 4.3.3 Technical Specification (11-007402) PARAMETER SPECIFICATION Frequency range: 380-500MHz Bandwidth: <140MHz Gain: 30-32dB 1dB Compression Point: +22dBm (typical) 3rd order intercept: +34-35dBm (typical) Input/Output return loss: >20dB Noise figure: <1.3dB Connectors: SMA female Supply: 300-330mA @ 10-24V DC operational: -10°C to +60°C Temperature range: storage: -20°C to +70°C Weight: 0.38kg Size: 90 x 55 x 30.2 (case only)
UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-23 of 38 4.3.4 LNA ‘D’ Connector Pin-out details Connector pin Signal 1 +Ve input (10-24V) 2 GND 3 Alarm RelayO/P bad 4 Alarm Relay common 5 Alarm Relay good 6 No connection 7 TTL voltage set 8 TTL alarm/0V (good) 9 O/C good/0V bad
UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-24 of 38 4.3.5 Drg. N. 11-007302, LNA Assembly With Alarm Relay BYDATEDESCRIPTIONNoISSUE1 23 456 78 9ABCDEF123456789FEDABCFax : 01494 777002Tel : 01494 777000Aerial Facilities LtdTWO DECIMAL PLACES ± 0.1mmONE DECIMAL PLACE ± 0.3mmNO DECIMAL PL ACE ± 1mmBY AERIAL FACIL ITIES LTD.PERMISSIBLE ONLY IF EXPRESSLY AUTHORISED IN WRITINGREPRO DUCTIO N OR USE O F T HIS DESIG N BY O THERS ISTHIS IS A PROPRIETARY DESIGN OF AERIAL FACIL ITIES L TD.DRAWN CHKDAL L DIMENSIO NS ARE IN mmUNLESS O THERWISE STATEDAPPDDAT ET OL ERANCES SCALEEnglandCUSTOMER DRG.NoTITLEA3LOW NOISE AMPLIFIER 380-500MHz(20dB) ASSEMBLY DRAWING (WITH RELAY)11-0073021A1.5:1DBS 9/7/02PRODUCTION ISSUE9/7/02DBSCOMPONENTS TO BE ADDED TO 11-003912,ITEM 15,DC PCB SUB-ASSEMBLYAFLSENSITIVEDEVICESE LE C TR O S TA TI COBSERVE PRECAUTIONSATTENTIONFOR HANDLINGAFLAFL********11-007302380-500MHz20dB 10-24V DC**/**/20**REF.FREQ.GAINS/NDATE0086IN34see note 2LABEL DETAILS - SCALE 1:135see note 2see note 231IN 4 PLACES2. LIDS,ITEMS 2 & 3 AND LABELS,ITEMS 31,34 & 35,TO BE FITTED ON TEST1. SOLDER JOINTS TO BE MADE USING OR2819OUT6IN 3 PLACES3DC PCB254732RF PCB15W6212 C21222CPL 1 R1C1RF OUTR1 9W7C2 15 C9R2R1 6 C5L1L3C4 C8+R4TR1L5 C1 2J31 J32W5W2 W12251017 24233227527220216 235242IN 2 PLACES426830R39REG 3J3 J1J2R5 0 R4 9R4 4R4 3RL1CON1CB IB
UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-25 of 38 4.3.6 Drg. N. 11-007402, LNA Assembly With Alarm Relay
UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-26 of 38 4.4 1Watt Low Power Amplifier (11-007901) 4.4.1 Description This amplifier is dedicated to be a 1.0 W driver from 380 MHz to 470 MHz. It is a 2 stage amplifier where each stage is in balanced configuration. It demonstrates very high linearity and good input/output VSWR. There is a Current Fault Alarm Function, which indicates failure of each one of the RF transistors by various alarm output options. The amplifier is housed in an aluminium case (Alocrom 1200 finish) with SMA connectors for the RF input/output and a 9way D-type connector for DC and alarm outputs. 4.4.2 Technical Specifications PARAMETER SPECIFICATION Frequency range: 380-470MHz Small signal gain: 37.5dB Gain flatness: ±0.5dB Gain vs. temperature: 1.5dB operational: -10°C to +60°C Temperature range: storage: -20°C to +70°C Input/output return loss: 18dB Maximum output power: 30.4dBm (@ 1dB comp. point) OIP3: 43dBm Supply voltage: 10-15V DC Current consumption: 780mA (typical) Noise Figure: <1.75dB
UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-27 of 38 4.4.3 Drg. N. 11-007901, 1W LPA Assembly Drawing TETRA 1W 37dB GAINASSEMBLY DRAWING11-0079011A1.5:1MNR 26/06/033 9IN 14 PLACES1316 41514IN 2 PL ACES17 182812 110 11IN 10 PLACES5210IN 4 PLACES6 72192BYDAT EDESCRIPT IO NNoISSUETHIRD ANGLE PROJECTION1 234 5678 9ABCDEF1 234 5678 9ABCDEFFax : 01494 777002Tel : 01494 777000Aerial Facilities LimitedTHIS IS A PROPRIETARY DESIGN OF AERIAL FACIL ITIES LTD.REPRO DUCTIO N OR USE O F THIS DESIG N BY O THERS ISPERMISSIBLE ONLY IF EXPRESSLY AUTHORISED IN WRITINGBY AERIAL FACIL ITIES LTD.NO DECIMAL PL ACE ± 1m mONE DECIMAL PLACE ± 0.3mmTWO DECIMAL PL ACES ± 0.1mmAL L DIMENSIO NS ARE IN mmUNLESS OTHERWISE STATEDCHKDDRAWN APPDDAT ET O L ERANCES SCAL EEnglandCUSTO MER DRAWING.NoTITLE3A+8VAL2AL1++kk+RL1REG1+5-6AL3+8VAL4R1R2R3R4R5R6 R7R9R8R10R11R13R12R15R17R14R16R19R18L1L2L4L3L5L6TR 1TR 2TR 4TR 3CPL1 CPL2C1C2C3C4 C6C5 C7C8C9C10C11C12C13C14 R20R21R22R23R24CPL3CPL4C15C16C17C18C19C20L7L9L11R25C21TR 5TR 7TR 8TR 6R27R28R29R30C22L12R26R31 R32C23 C24R34R33C25C26L8L10R35R36R37R38R39R40R41R42R43R44R45RF OUTRF INIC1C29C30ZD 1++C27C28R73R46 R52R50R51R48R49R47R53IC2IC3R59R57R60R58R55R56R65R64 TR 10R62R63 TR 9 R71TR 11R66R67R68 D1LE D 1R69R70C31C32C33C34C35C36C37C38C39C40C41C42C43R54LimitedAe ria l Fa cilitie sMNRR4511-007925 Iss. 2PRODUCTION ISSUE (ECN2929)26/06/0311- 007901***-***MHz1W 12vD C**/**/20**LimitedAerial FacilitiesREF.PWRS/NDATEFR E Q .IN********OUT0086SENSITIVEDEVICESELECTROSTATICOBSERVE PRECAUTIONSATTENTIONFOR HANDLINGAFLAFL1. ALL SOLDER JOINTS TO BE MADE USING OR .ECN298210/07/03MNR2ACB IB
UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-28 of 38 4.5 10W Power Amplifier (12-016302) 4.5.1 Description This amplifier is a Class A 10W 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 (RL). It has built in a Current Fault Alarm Function. Its housing is an 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. 4.5.2 Technical Specification PARAMETER SPECIFICATION Frequency range: 380-470MHz Small signal gain: 22.8dB Gain flatness: ±1.5dB I/O Return loss: >18dB 1dB compression point: +40.5dBm OIP3: +53dBm Supply voltage: 24V DC Supply current: 2.5Amps (Typical) operational: -10°C to +60°C Temperature range: storage: -20°C to +70°C Weight: <2kg (no heatsink)
UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-29 of 38 4.6 Wide Dynamic Range AGC (17-001105, Det. & 17-001201, Atten.) 4.6.1 Description The equipment is fitted with a wide dynamic range Automatic Gain Control (AGC) system. This is generally fitted in the Uplink path (not usually needed in the downlink path, as the signal here is at an almost constant level), to avoid overloading the amplifiers (with the associated performance degradation) should a mobile be operated very close to the unit. The AFL wide dynamic range 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. Normally the attenuator is at minimum attenuation. The detector/amplifier unit monitors the RF level being delivered by the power amplifier, and when a certain threshold is reached it begins to increase the value of the attenuator to limit the RF output to the (factory set) threshold. Therefore overloading of the power amplifier is avoided. The factory set threshold is 1dB below the Enhancer 1dB compression point. Some adjustment of this AGC threshold level is possible, a 10dB range is mostly achieved. It is not recommended under any circumstances to adjust the AGC threshold to a level greater than the 1dB compression point as system degradation will occur. The detector comprises of a 50 transmission line with a resistive tap which samples a small portion of the mainline power. The sampled signal is amplified and fed to a conventional half wave diode rectifier, the output of which is a DC voltage proportional to the RF input signal. This DC voltage is passed via an inverting DC amplifier with integrating characteristics, to the output, which drives the attenuation control line of the corresponding AGC attenuator. This unit is fitted at some earlier point in the RF circuit. The unit contains a 12V DC regulator in the detector module, which supplies stabilised voltage to the DC amplifier and via an external cableform to the AGC attenuator.
UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-30 of 38 For small signals, below AGC onset, the output control line will be close to 12V and the AGC attenuator will have minimum attenuation. As the signal level increases the control line voltage will fall, increasing the attenuator value and keeping the system output level at a constant value. The AGC onset level is adjusted by the choice of sampler resistor R1 and by the setting of potentiometer VR1, (factory set @ time of system test) do not adjust unless able to monitor subsequent RF levels. The attenuator comprises a 50 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 from the associated AGC detector unit. 4.6.2 Technical Specification PARAMETER SPECIFICATION Frequency Range: up to 1000MHz Attenuation Range: 3 to 30dB Attenuation Steps: continuously variable VSWR: better than 1.2:1 RF Connectors: SMA female attenuator: 1W Power Handling: detector/amp: >30W (or as required) operation: -10°C to +60°C Temperature Range: storage: -20°C to +70°C attenuator (pcb) 50 x 42 x 21mm Size: Detector (pcb) 54 x 42 x 21mm attenuator: 90grams Weight: detector/amp: 100grams
UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-31 of 38 4.6.3 Drg. N. 17-001105, ACG Detector Assembly
UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-32 of 38 4.6.4 Drg. N. 17-001201, AGC Attenuator Assembly Drawing
UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-33 of 38 4.7 24V Single Relay Board (80-008901) 4.7.1 Description The General Purpose Relay Board allows the inversion of signals and the isolation of circuits. It is equipped with a single dual pole change-over relay RL1, with completely isolated wiring, accessed via a 15 way in-line connector. The relay is provided with polarity protection diodes and diodes for suppressing the transients caused by "flywheel effect" which can destroy switching transistors or induce spikes on neighbouring circuits. It’s common use is to amalgamate all the alarm signals into one, volts-free relay contact pair for the main alarm system. Note that the board is available for different voltages (12 or 24V) depending on the type of relay fitted at RL1.
UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-34 of 38 4.7.2 12V Relay PCB Fabrication Drawing
UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-35 of 38 4.7.3 12V Relay Board Circuit Diagram
UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-36 of 38 4.8 DC/DC Converter, 24V in, 12V 8A out (13-003011) 4.8.1 Description The DC/DC converter fitted is a high power modular unit with a 5 amp @ 12V output capability. The circuit is basically an O.E.M semiconductor regulator (one side of which has a heatsink mounting plate, usually bolted to the casing of a Cell Enhancer/rack shelf) with screw block terminations. Note: no circuit diagram of the O.E.M. regulator is available. This unit should not be repaired, only replaced. 4.8.2 Technical Specification PARAMETER SPECIFICATION Input Voltage Range: 18-36V DC Output Voltage: 12V±0.5V Max. Current Load: 5.0Amps (100Watts) operation:-10°C to +60°C Temperature range: storage: -20°C to +70°C Size(PCB): 190 x 63mm Weight: 300gms
UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-37 of 38 4.9 JWS150-24/A PSU (96-300060) 4.9.1 Description The power supply unit is a switched-mode type capable of supplying 24V DC at 6.25Amps continuously. Equipment of this type typically requires approximately 2-2.5Amps 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. The output voltage may be varied using a multi-turn adjustment potentiometer mounted close to the DC output terminals. 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. 4.9.2 Technical Specification AC Input Supply: Voltage: 110 or 220V nominal 90 to 132 or 180 to 264V (absolute limits) Frequency: 47 to 63Hz DC Output Supply: Voltage: 24V DC (nominal) 22 to 26V (absolute limits) Maximum current: 6.25A (150Watts)
UHF Fibre-Fed Remote Site User Handbook Handbook N.-60-137601HBK Issue No:-1 Date:-18/03/2005 Page:-38 of 38 5. INSTALLATION 5.1 Initial Installation Record When this equipment is initially commissioned, please use the equipment set-up record sheet in Appendix A. This will help both the installation personnel and AFL should these figures be needed for future reference or diagnosis. 5.2 Installation & Attenuator Settings The UHF Fibre Optic System comprises a remote site fibre driven 10Watt bi-direction amplifier. It is fed from a fibre optic tray which links to the master site fibre optic tray via a single fibre optic cable. The Tx and Rx signals use different optical frequencies and are coupled using wave division multiplexers (WDMs). The three BDA will feed either an omni-directional antenna or leaky feeders to provide UHF radio coverage in areas where signal levels and reception from the BTS are poor and in which the mobiles are to be served. The duplexer, fibre optic and BDA trays are all designed to be mounted in standard 19” equipment racks. The maximum output from the BDAs is limited by built-in AGC circuits. The gain in both the downlink and the uplink paths can be adjusted using switched attenuators which can be accessed from the rear panels of the BDA trays. The master site is also fitted with attenuators which control the signal levels to and from the master site fibre optic tray. All switched attenuators are switched to maximum attenuation prior to despatch. The downlink attenuator in the master site should be adjusted so that -14dBm is available from the downlink connector when one channel is being driven at maximum power by the BTS. The uplink attenuator in the master site should be adjusted so that an input signal to the uplink connector of -5dBm will provide a maximum signal to the coupler of -20dBm. The downlink attenuator on the 10W BDA should be adjusted so that an input signal of -10dBm provides an output to the antenna connector of +25dBm. The uplink attenuator on the 10W BDA should be adjusted so that an input signal of -50dBm will provide an output of 0dBm to the Uplink F/O Tray connector.

Navigation menu