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

Axell Wireless UHF Signal Extender RECEIVER MULTICOUPLER

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Channelised Bi-Directional RF Amplifier
Operation & Maintenance Manual
For
Dicarlo Associates, Inc.
AFL product part Nō.:
50-063701
Denver Channelised CE
User/Maintenance Handbook
Handbook Nō.-50-063708HBKM
Issue No:-2
Date:-03/11/2003
Page:-1 of 51
Table of Contents
AMENDMENT LIST RECORD SHEET ................................................................................................. 4
INTRODUCTION ....................................................................................................................................... 5
Scope...........................................................................................................................................................................5
Purpose.......................................................................................................................................................................5
Glossary of Terms .....................................................................................................................................................6
Key to AFL RF Module Drawing Symbols .............................................................................................................7
1.
1.1
1.2
1.3
1.4
2.
3.
SAFETY CONSIDERATIONS ....................................................................................................... 8
Electric Shock Hazard .................................................................................................................................8
RF Radiation Hazard...................................................................................................................................8
Chemical Hazard..........................................................................................................................................9
Emergency Contact Numbers .....................................................................................................................9
OVERVIEW/SYSTEM DESCRIPTION ..................................................................................... 10
SPECIFICATION .......................................................................................................................... 13
3.1
50-063701 Parts Lists .................................................................................................................................13
3.1.1
UHF Duplex Shelf 50-063702 Parts List .................................................................................................13
3.1.2
Downlink UHF 5 Channel Shelf 50-063703 Parts List............................................................................14
3.1.3
Uplink UHF 4 Channel Shelf 50-063704 Parts List ................................................................................15
3.1.4
Leaky Feeder UHF Duplex/PA Shelf 50-063705 Parts List ....................................................................16
3.1.5
UHF Simplex Shelf 50-063706 Parts List ................................................................................................17
3.1.6
Power Supply Shelf 50-063707 Parts List................................................................................................18
3.2
Technical Specification ..............................................................................................................................19
3.2.1
Channel Module Frequencies ..................................................................................................................20
3.3
Mechanical Specification ...........................................................................................................................21
4.
4.1
4.2
4.3
4.3
4.4
4.5
4.6
4.7
5.
SYSTEM DRAWINGS .................................................................................................................. 22
Drg. Nō. 50-063751, Channelised Cell Enhancer Rack Layout Drawing .............................................22
Drg. Nō. 50-063781, Channelised Cell Enhancer System Diagram .......................................................23
Drg. Nō. 50-063792, Base Side Duplex Shelf Outline Drawing ..............................................................24
Drg. Nō. 50-063793, Downlink Channels Shelf Outline Drawing ..........................................................25
Drg. Nō. 50-063794, Uplink Channels Shelf Outline Drawing...............................................................26
Drg. Nō. 50-063795, Tunnel Side Duplexer Shelf Outline Drawing ......................................................27
Drg. Nō. 50-063796, UHF Simplex Shelf Outline Drawing ....................................................................28
Drg. Nō. 50-063797, Power Supply Shelf Outline Drawing....................................................................29
SUB-UNIT MODULES .................................................................................................................. 30
5.1
UHF Duplex Shelf 50-063702 ....................................................................................................................30
5.1.1
Bandpass Filter (02-010701) ...................................................................................................................30
5.1.1.1 Description .......................................................................................................................................30
5.1.1.2 Technical Specification ....................................................................................................................30
5.1.2
3dB UHF Splitter (05-002603) ................................................................................................................31
5.1.2.1 Description .......................................................................................................................................31
5.1.2.2 Technical Specification ....................................................................................................................31
5.1.3
Ferrite Isolator (08-930003)....................................................................................................................32
5.1.3.1 Description .......................................................................................................................................32
5.1.4
¼Watt 0- -30dB Switched Attenuator (10-000701)..................................................................................33
5.1.4.1 General Application ........................................................................................................................33
5.1.4.2 Switched Attenuators .......................................................................................................................33
5.1.5
Low Noise Amplifiers (11-006102, 11-007302 & 11-007402).................................................................34
5.1.5.1 Description .......................................................................................................................................34
5.1.5.2 Technical Specification, 11-007302.................................................................................................34
5.1.5.3 Technical Specification, 11-007402.................................................................................................35
5.1.5.4 Technical Specification, 11-006102.................................................................................................35
5.1.6
20W Power Amplifier (12-016301) ..........................................................................................................36
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Handbook Nō.-50-063708HBKM
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Date:-03/11/2003
Page:-2 of 51
5.1.6.1 Description .......................................................................................................................................36
5.1.6.2 Technical Specification ....................................................................................................................36
5.2
5 Channel UHF Downlink Shelf 50-063703 .............................................................................................37
5.2.1
3dB Splitter 905-002603) See section 5.1.2 .............................................................................................37
5.2.2
3 Way Splitter/Combiner (05-003803).....................................................................................................37
5.2.2.1 Description .......................................................................................................................................37
5.2.2.2 Technical Specification ....................................................................................................................37
5.2.3
Dual DC/DC Converter (13-001803) ......................................................................................................38
5.2.3.1 Description .......................................................................................................................................38
5.2.3.2 Technical Specification ....................................................................................................................38
5.2.4
Channel Selective Module (17-003006) ...................................................................................................39
5.2.4.1 Description .......................................................................................................................................39
5.2.4.2 Drg. Nō. 17-003080, Generic Channel Module Block Diagram......................................................40
5.2.5
12V Relay Board (20-001601) .................................................................................................................41
5.2.5.1 Description .......................................................................................................................................41
5.2.5.2 Technical Specification ....................................................................................................................41
5.3
UHF Uplink 4 Channel Shelf 50-063704 ..................................................................................................42
5.3.1
Four Way Splitter (05-003401) ................................................................................................................42
5.3.1.1 Description .......................................................................................................................................42
5.3.1.2 Technical Specification 05-003401..................................................................................................42
5.4
UHF Duplex/PA Shelf 50-063705..............................................................................................................42
5.5
UHF Simplex Channel Shelf 60-063706 ...................................................................................................43
5.5.1
Simplex Controller PCB (13-002811)......................................................................................................43
5.5.1.1 Description .......................................................................................................................................43
5.5.2
ALC Attenuator Module (17-001201) ......................................................................................................43
5.5.2.1 Description .......................................................................................................................................43
5.5.3
Simplex Squelch Controller PCB (17-002802) ........................................................................................43
5.5.3.1 Description .......................................................................................................................................43
5.6
Power Supply Shelf 50-063707..................................................................................................................44
5.6.1
24V, 400W Power Supply Pack (96-300054)...........................................................................................44
5.6.1.1 Description .......................................................................................................................................44
5.6.1.1 Technical Specification ....................................................................................................................44
6.
6.1
7.
INSTALLATION............................................................................................................................ 45
Initial Installation Record .........................................................................................................................45
MAINTENANCE............................................................................................................................ 46
7.1
General Procedures....................................................................................................................................46
7.1.1
Fault Finding ...........................................................................................................................................46
7.1.2
Downlink ..................................................................................................................................................47
7.1.3
Uplink.......................................................................................................................................................47
7.1.4
Fault repair ..............................................................................................................................................47
7.1.5
Checking service ......................................................................................................................................48
7.1.6
Service Support ........................................................................................................................................48
7.2
Tools & Test Equipment............................................................................................................................48
7.3
Care of Modules .........................................................................................................................................49
7.3.1
General Comments...................................................................................................................................49
7.3.2
Module Removal (LNA’s, general procedure): ........................................................................................49
7.3.3
Module Replacement (general):...............................................................................................................49
7.3.4
Power Amplifiers......................................................................................................................................49
7.3.5
Low Power Amplifier Replacement..........................................................................................................50
7.3.6
Module Transportation: ...........................................................................................................................50
APPENDIX A
INITIAL EQUIPMENT SET-UP CALCULATIONS............................................... 51
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Issue No:-2
Date:-03/11/2003
Page:-3 of 51
AMENDMENT LIST RECORD SHEET
Issue
Nō.
Date
Page No.’s
Amended
Reason for new issue
29/09/2003
Incorporated
by
CMH
03/11/03
PLB
Add FCC RF exposure Note
1st Issue
Document Ref:-50-063708HBKM
Denver Channelised CE
User/Maintenance Handbook
Handbook Nō.-50-063708HBKM
Issue No:-2
Date:-03/11/2003
Page:-4 of 51
INTRODUCTION
Scope
This handbook is for use solely with the equipment identified by the AFL Part Number
shown on the front cover. It is not to be used with any other equipment unless specifically
authorised by Aerial Facilities Limited.
Purpose
The purpose of this handbook is to provide the user/maintainer with sufficient information
to service and repair the equipment to the level agreed. Maintenance and adjustments to any
deeper level must be performed by AFL, normally at the company’s repair facility in
Chesham, England.
This handbook has been prepared in accordance with BS 4884, and AFL’s Quality
procedures, which maintain the company’s registration to ISO 9001: 1994 and to the
R&TTE Directive of the European Parliament. Copies of the relevant certificates and the
company Quality Manual can be supplied on application to the Quality Manager.
This document fulfils the relevant requirements of Article 6 of the R&TTE Directive.
Limitation of Information Notice
This manual is written for the use of technically competent operators/service persons. No
liability is accepted by AFL for use or misuse of this manual, the information contained
therein, or the consequences of any actions resulting from the use of the said information,
including, but not limited to, descriptive, procedural, typographical, arithmetical, or listing
errors.
Furthermore, AFL does not warrant the absolute accuracy of the information contained
within this manual, or it’s completeness, fitness for purpose, or scope.
AFL has a policy of continuous product development and enhancement, and as such,
reserves the right to amend, alter, update and generally change the contents, appearance and
pertinence of this document without notice.
All AFL products carry a twelve month warranty from date of shipment. The warranty is
expressly on a return to base repair or exchange basis and the warranty cover does not
extend to on-site repair or complete unit exchange.
Denver Channelised CE
User/Maintenance Handbook
Handbook Nō.-50-063708HBKM
Issue No:-2
Date:-03/11/2003
Page:-5 of 51
Glossary of Terms
Repeater or
Cell Enhancer
Band Selective Repeater
Channel Selective
Repeater
BTS
C/NR
Downlink (D.L.)
Uplink (U.L.)
RSA
EMC
GND
DC
AC
ID
OIP3
LED
M.S.
N/A
N/C
NF
RF
Rx
Tx
S/N
A Radio Frequency (RF) amplifier which can simultaneously
amplify and re-broadcast Mobile Station (MS) and Base
Transceiver Station (BTS) signals.
A Cell Enhancer designed for operation on a range of channels
within a specified frequency band.
A Cell Enhancer, designed for operation on specified channel(s)
within a specified frequency band. Channel frequencies may be
factory set or on-site programmable.
Base Transceiver Station
Carrier-to-Noise Ratio
RF signals transmitted from the BTS and to the MS
RF signals transmitted from the MS to the BTS
Receiver/Splitter Amplifier
Electromagnetic Compatibility
Ground
Direct Current
Alternating Current
Identification Number
Output Third Order Intercept Point = RFout +(C/I)/2
Light Emitting Diode
Mobile Station
Not Applicable
No Connection
Noise Figure
Radio Frequency
Receiver
Transmitter
Serial Number
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User/Maintenance Handbook
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Issue No:-2
Date:-03/11/2003
Page:-6 of 51
Key to AFL RF Module Drawing Symbols
Denver Channelised CE
User/Maintenance Handbook
Handbook Nō.-50-063708HBKM
Issue No:-2
Date:-03/11/2003
Page:-7 of 51
1.
1.1
SAFETY CONSIDERATIONS
Electric Shock Hazard
Electrical shocks due to faulty mains driven power supplies.
Whilst ever potentially present in any electrical equipment, such a condition would be
minimised by quality installation practice and thorough testing at:
a) Original assembly
b) Commissioning
c) Regular intervals, thereafter.
All test equipment to be in good working order prior to its use. High current power supplies
can be dangerous because of the possibility of substantial arcing. Always switch off during
disconnection and reconnection.
1.2
RF Radiation Hazard
RF radiation, (especially at UHF frequencies) arising from transmitter outputs connected to
AFL’s equipment, must be considered a safety hazard.
This condition might only occur in the event of cable disconnection, or because a ‘spare’
output has been left unterminated. Either of these conditions would impair the system’s
efficiency. No investigation should be carried out until all RF power sources have been
removed. This would always be a wise precaution, despite the severe mismatch between the
impedance of an N type connector at 50Ω, and that of free space at 377Ω, which would
severely mitigate against the efficient radiation of RF power. Radio frequency burns could
also be a hazard, if any RF power carrying components were to be carelessly touched!
Antenna positions should be chosen to comply with requirements (both local & statutory)
regarding exposure of personnel to RF radiation. When connected to an antenna, the unit is
capable of producing RF field strengths, which may exceed guideline safe values especially if
used with antennas having appreciable gain. In this regard the use of directional antennas
with backscreens and a strict site rule that personnel must remain behind the screen while the
RF power is on, is strongly recommended.
IMPORTANT NOTE: To comply with FCC RF exposure compliance requirements, a
separation distance of at least 20cm must be maintained between the leaky feeder attached to
this device and all persons. Furthermore the gain of antennas attached must be chosen and
located so as to satisfy the MPE categorical exclusion and co-location requirements.
Where the equipment is used near power lines, or in association with temporary masts not
having lightning protection, the use of a safety earth connected to the case-earthing bolt is
strongly advised.
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User/Maintenance Handbook
Handbook Nō.-50-063708HBKM
Issue No:-2
Date:-03/11/2003
Page:-8 of 51
1.3
Chemical Hazard
Beryllium Oxide, also known as Beryllium Monoxide, or Thermalox™, is sometimes used
in devices within equipment produced by Aerial Facilities Ltd. Beryllium oxide dust can be
toxic if inhaled, leading to chronic respiratory problems. It is harmless if ingested or by
contact.
Products that contain beryllium are load terminations (dummy loads) and some power
amplifiers. These products can be identified by a yellow and black “skull and crossbones”
danger symbol (shown above). They are marked as hazardous in line with international
regulations, but pose no threat under normal circumstances. Only if a component containing
beryllium oxide has suffered catastrophic failure, or exploded, will there be any danger of the
formation of dust. Any dust that has been created will be contained within the equipment
module as long as the module remains sealed. For this reason, any module carrying the
yellow and black danger sign should not be opened. If the equipment is suspected of failure,
or is at the end of its life-cycle, it must be returned to Aerial Facilities Ltd for disposal.
To return such equipment, please contact the Quality Department, who will give you a
Returned Materials Authorisation (RMA) number. Please quote this number on the packing
documents, and on all correspondence relating to the shipment.
PolyTetraFluoroEthylene, (P.T.F.E.) and P.T.F.E. Composite Materials
Many modules/components in AFL equipment contain P.T.F.E. as part of the RF insulation
barrier.
This material should never be heated to the point where smoke or fumes are evolved. Any
person feeling drowsy after coming into contact with P.T.F.E. especially dust or fumes
should seek medical attention.
1.4
Emergency Contact Numbers
The AFL Quality Department can be contacted on:
Telephone
Fax
e-mail
+44 (0)1494 777000
+44 (0)1494 777002
qa@aerial.co.uk
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Handbook Nō.-50-063708HBKM
Issue No:-2
Date:-03/11/2003
Page:-9 of 51
2.
OVERVIEW/SYSTEM DESCRIPTION
The equipment covered in this manual is a UHF Bi-directional Amplifier (also known as a
Repeater). Its main sphere of application is in urban areas where the topography is such that
shadows occur in the propagation pattern (for example within large buildings, conference
centres and tunnels, etc.)
The Amplifier is a 4-port device for direct connection to two Base facing antennas, usually a
highly directional Yagi or similar aligned towards the base (donor) site, and two radiating
cable feeders to cover the mobiles. The channel frequencies passed by the Amplifier are set
as per the specific customer requirements. In this instance, the channel module frequencies
have been ‘hard-wired’ and so it is not possible to change frequencies without some reconfiguration of the channel programming.
The system for which the Amplifier is to be used with is mainly duplex channel UHF radio
system but with a single simplex channel. The duplex channels operate constantly in each
direction using the Base Antenna port 2 and Radiating Cable port 2. There are five
Downlink (Base Transmit) duplex channels and four Uplink (Base Receive) duplex
channels. In addition there is the Uplink simplex (talkaround) channel operating via these
ports.
The Downlink simplex channel operates through the Base Antenna port 1 and Radiating
Cable port 1 ports. This is to avoid any interaction between the common frequency channel
high gain paths. Using separate antennas adds the isolation required for the simplex part of
the Amplifier to work.
The simplex channels are not constantly operating in their entirety. Instead, each simplex
path has the output amplification disabled and when an input is detected in one path that
amplifier will be switched on and the other path will be held off until that input signal has
stopped. In this way, the simplex part of the system is constantly ready to pass the channel in
either path.
The Bi-directional Amplifier consists of six different 19” rack mount 4U chassis. These are
a Base side Duplex/PA chassis (AFL part: 50-063702) to provide the link with Antenna 2
and the remainder of the system. In addition there is a Tunnel side Duplex/PA chassis (AFL
part: 50-063705) to connect the Radiating cable 2 to the remainder of the system. The
channel selectivity is made in the Downlink by a Downlink Channel chassis (AFL part: 50063703) and in the Uplink by the Uplink Channel chassis (AFL part: 50-063704). The
Downlink simplex channel and part of the Uplink simplex channel circuit is housed in the
Simplex chassis (AFL part: 50-063706) and there is a Power Supply chassis (AFL part: 50063707) to provide the DC supply to each of the five RF units.
The Bi-directional Amplifier is housed in a single 38U 19” rack. All external connections
are made towards the bottom of the rear of the rack suitable for cable entry via cable ducts
through the open underside of the rack. External connections are for the 110V AC input,
four ‘N’ type female RF connectors and a Krone block for the alarm output.
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For better understanding of the system, the system diagram on page 23 should be consulted.
Downlink path
Duplex system signals in the Downlink path arriving at Base Antenna port 2 are first passed
to the Base side chassis and so through a duplexed bandpass filter to ensure good input
selectivity. This is then followed by a 31dB gain LNA to provide some amplification and a
switchable attenuator then allows up to 30dB of gain adjustment in 2dB steps.
From here signals are routed to the Downlink Channel chassis where a 2 way splitter is
followed by two three way splitters to provide six equal paths. One of these is terminated
with a 50ohm load and the remaining five each connect to a channel selectivity module. The
Downlink channel modules offer 15dB gain and have ALC circuitry to limit the module
output to -25dBm. This is ensure that the total output power may not become higher than the
specified level. The channel module outputs are taken to two three way combiners for
connection to a two way combiner which then routes signals out of the Downlink Channel
chassis and to the Tunnel side chassis.
The Downlink duplex channel frequencies factory set are:
457.050MHz
458.225MHz
457.850MHz
457.300MHz
457.775MHz
In the Tunnel side chassis a 21dB gain LNA is then followed by a 15dB gain LPA to drive a
23dB gain 20Watt Power Amplifier which provides the final stage of amplification. The
Power Amplifier is followed by a duplexed bandpass filter connecting to the Radiating cable
port 2.
The Downlink simplex channel, 452.850MHz, is received at Base Antenna port 1 and is
passed through a bandpass filter to provide selectivity. A 31dB gain LNA then provides
initial amplification and this is followed by a switchable attenuator giving up to 30dB of
gain adjustment in 2dB steps. An ALC attenuator is then fitted for muting the input of the
channel module when an Uplink path signal has been detected and is being amplified in that
direction. The channel module following the attenuator has 15dB of gain and has ALC
circuitry to limit the module output to -20dBm to limit the total output power to that
specified in case of an increase in off-air signal input. The channel module is followed by a
31dB gain LNA and then a 15dB gain 1Watt LPA. A bandpass filter after the LPA connects
to the Radiating cable port 1.
Uplink path
All Uplink channels enter the Bi-Directional Amplifier at Radiating Cable port 2 and pass to
the Tunnel side chassis where a duplexed bandpass filter routes the signals to the Uplink
input amplifier, a 31dB gain LNA. A switchable attenuator then gives up to 30dB of gain
adjustment in 2dB steps before signals connect to the Uplink Channel chassis.
In the Uplink Channel chassis, a 2 way splitter connects to two three way splitters to provide
six equal paths. One of these is unused and so is terminated with a 50ohm load. Four of the
remaining paths each connect to a channel selectivity module giving 15dB gain with an
ALC limited maximum output of -23dBm. The four module outputs then connect to a four
way combiner for routing to the Base side chassis. The last of the six paths is routed to the
Simplex chassis which will be described later in this section.
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The Uplink duplex channel frequencies are factory set:
452.050MHz
453.225MHz
452.300MHz
452.775MHz
The four Uplink duplex channels arrive in the Base side chassis and pass through a 21dB
gain then a 15dB gain LPA driver before a 23dB gain 20Watt Power Amplifier. There is an
isolator fitted at the PA output to provide protection from the Uplink simplex channel path.
A 2 way combiner then combines the four duplex channels with the simplex channel and a
bandpass filter then connects to the Base Antenna port 2.
In the Simplex chassis, the Uplink path from the Uplink Channel chassis is first routed
through two ALC attenuators to mute the input to the Uplink channel selectivity module
when a Downlink simplex signal is being passed in the other path. A channel selectivity
module, set for 452.850MHz, then gives 25dB of gain and has an ALC level of -17dBm.
The module is followed by a 31dB gain LNA and then a 15dB gain LPA with an isolator at
the output to provide protection from the duplex path PA. The Uplink simplex signal then
connects to the Mobile side chassis for routing to the 2 way combiner.
The Power Supply Unit operates from an AC supply of 110V and has a 7.5Ampere circuit
breaker to switch the chassis On or Off. A 15A filter then provides some protection against
instabilities in the AC supply. There are two 400Watt PSU modules fitted and the outputs of
these are distributed to six 24V DC output sockets at the rear of the Power Supply chassis.
The RF connectors used for user interface are ‘N’ type female and interconnecting RF
chassis connectors are SMA female. Each of the five RF chassis has a DC input fuse and the
front panels have a green ‘Power ON’ LED and a red ‘ Alarm’ LED. The Power Supply
chassis has a single green ‘Power ON’ front panel LED.
Each chassis has a summary alarm output connecting to the Krone block at the lower rear of
the rack for user interface. In addition, the 19” rack has intruder alarms fitted to the front and
rear doors of the rack. The alarm outputs may be connected to singly or in parallel as a rack
summary. The alarm outputs are voltage free dry contacts being Closed in normal operation
and Open in an Alarm state.
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3.
SPECIFICATION
50-063701 Parts Lists
3.1
50-063702
50-063703
50-063704
50-063705
50-063706
50-063707
97-500033
97-500065
3.1.1
BASE ANT SIDE UHF DUPLEX/PA CHASSIS
DOWNLINK UHF 5 CHANNEL CHASSIS
UPLINK UHF 4 CHANNEL CHASSIS
LCX SIDE UHF DUPLEX/PA CHASSIS
UHF SIMPLEX CHANNEL CHASSIS
POWER SUPPLY CHASSIS, 110V AC INPUT
38U RACK 38U 600 x 600mm RAL7035
EURORACK GND/EARTHING KIT
Base Antenna Side UHF Duplex/PA Shelf 50-063702 Parts List
02-010701
05-002603
08-004905
10-000701
11-006102
11-007302
11-007402
12-016301
17-004327
17-004730
19-000826
19-001021
19-001024
80-063820
91-030002
91-130005
91-500001
91-600014
91-600015
91-600019
91-640004
91-660001
96-110021
96-110034
96-700034
96-700035
97-400002
5POLE UHF COMBLINE BANDPASS FILTER
UHF 3dB SPLITTER SMA
25Watt 2 PORT ISOLATOR N 330-470MHz
1/4Watt 0-30dB SWITCHED ATTENUATOR
LPA 380-500MHz 1Watt
LNA. 380-500MHz 20dB
LNA. 380-500MHz 30dB
POWER AMPLIFIER 380-470MHz 20Watt CLASS A
ATTENUATOR COVER
ATTENUATOR MOUNTING
19" CHASSIS 400mm DEEP LID
4U 19" RACKMOUNT 400mm DEEP CHASSIS
4U 19" CHASSIS FRONT PANEL
HEATSINK 20Watt PA
N ADAPTOR PANEL FEMALE/FEMALE
SMA BULKHEAD ADAPTOR FEMALE/FEMALE
POWER PLUG 3 PIN PANEL MOUNT NC-X
'D' 9 WAY SOCKET (NON FILTERED)
'D' 9 WAY PLUG (NON FILTERED)
'D'15 WAY SHELL (2W7)
LARGE PIN FOR 91-660001 D SOCKET
2W5 MIXED D TYPE SOCKET (7 WAY)
T10A 0.25 x 1.25' FUSE CERAMIC
FUSE HOLDER 16-30A, 32mm
LED RED 5mm IP67
LED GREEN 5mm IP67
4U HANDLE [ALLOY]
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Page:-13 of 51
3.1.2
Downlink UHF 5 Channel Shelf 50-063703 Parts List
05-002603
05-003803
13-001803
17-003012
19-000826
19-001021
19-001024
20-001601
91-130005
91-500001
91-600015
91-620001
93-930003
96-110001
96-110011
96-600002
96-600003
96-700034
96-700035
97-400002
UHF 3dB SPLITTER SMA
3 WAY SPLITTER, UHF
DUAL DC/DC CONVERTER 24V-12V 1A
CHANNEL MODULE 450MHz, 15kHz (8p)
19" CHASSIS 400mm DEEP LID
4U 19" RACK MOUNT 400mm DEEP CHASSIS
4U 19" CHASSIS FRONT PANEL
12V RELAY BOARD
SMA BULKHEAD ADAPTOR FEMALE/FEMALE
POWER PLUG 3 PIN PANEL MOUNT NC-X
'D' 9 WAY PLUG (NON FILTERED)
'D' 25 WAY SOCKET
SMA 50ohm TERMINATION
FUSE HOLDER 20 x 5mm6.3A
T 4A A.SURGE FUSE 20mm
INSULATING BOOT SMALL
INSULATING BOOT D.C.
LED RED 5mm IP67
LED GREEN 5mm IP67
4U HANDLE [ALLOY]
Denver Channelised CE
User/Maintenance Handbook
Handbook Nō.-50-063708HBKM
Issue No:-2
Date:-03/11/2003
Page:-14 of 51
3.1.3
Uplink UHF 4 Channel Shelf 50-063704 Parts List
05-002603
05-003401
05-003803
13-001803
17-003012
19-000826
19-001021
19-001024
20-001601
91-130005
91-500001
91-600015
91-620001
93-930003
96-110001
96-110011
96-600002
96-600003
96-700034
96-700035
97-400002
UHF 3dB SPLITTER SMA
4 WAY SPLITTER LOW POWER
3 WAY SPLITTER, UHF
DUAL DC/DC CONVERTER 24V-12V 1A
CHANNEL MODULE 450MHz, 15kHz (8p)
19" CHASSIS 400mm DEEP LID
4U 19" CHASSIS 400mm DEEP CHASSIS
4U 19" CHASSIS FRONT PANEL
12V RELAY BOARD
SMA BULKHEAD ADAPTOR FEMALE/FEMALE
POWER PLUG 3 PIN PANEL MOUNT NC-X
'D' 9 WAY PLUG
'D' 25 WAY SOCKET
SMA 50ohm TERMINATION
FUSE HOLDER 20 x 5mm6.3A
T 4A A.SURGE FUSE 20mm
INSULATING BOOT SMALL
INSULATING BOOT D.C.
LED RED 5mm IP67
LED GREEN 5mm IP67
4U HANDLE [ALLOY]
Denver Channelised CE
User/Maintenance Handbook
Handbook Nō.-50-063708HBKM
Issue No:-2
Date:-03/11/2003
Page:-15 of 51
3.1.4
Tunnel side UHF Duplex/PA Shelf 50-063705 Parts List
02-010701
10-000701
11-006102
11-007302
11-007402
12-016301
13-001803
17-004327
17-004730
19-000826
19-001021
19-001024
80-063820
91-030002
91-130005
91-500001
91-600014
91-600015
91-600019
91-640004
91-660001
96-110021
96-110034
96-700034
96-700035
97-400002
5POLE COMBLINE BANDPASS FILTER
1/4Watt 0-30dB SWITCHED ATTENUATOR
LPA 380-500MHz 1Watt
LNA. 380-500MHz 20dB
LNA. 380-500MHz 30dB
POWER AMPLIFIER 380-470MHz 20Watt CLASS A
DUAL DC/DC CONVERTER 24V-12V 1A
ATTENUATOR COVER
ATTENUATOR MOUNTING
19" CHASSIS 400mm DEEP LID
4U 19" RACK MOUNT 400mm DEEP CHASSIS
4U 19" CHASSIS FRONT PANEL
HEATSINK 20Watt PA
N ADAPTOR PANEL FEMALE/FEMALE
SMA BULKHEAD ADAPTOR FEMALE/FEMALE
POWER PLUG 3 PIN PANEL MOUNT NC-X
'D' 9 WAY SOCKET (NON FILTERED)
'D' 9 WAY PLUG (NON FILTERED)
'D'15 WAY SHELL (2W7)
LARGE PIN FOR 91-660001 D SOCKET
2W5 MIXED D TYPE SOCKET (7 WAY)
T10A 0.25 x 1.25' FUSE CERAMIC
FUSE HOLDER 16-30A, 32mm
LED RED 5mm IP67
LED GREEN 5mm IP67
4U HANDLE [ALLOY]
Denver Channelised CE
User/Maintenance Handbook
Handbook Nō.-50-063708HBKM
Issue No:-2
Date:-03/11/2003
Page:-16 of 51
3.1.5
UHF Simplex Shelf 50-063706 Parts List
02-010701
08-930003
10-000701
11-006102
11-007402
13-001803
13-002811
17-001201
17-002802
17-004327
17-004730
17-010802
19-000826
19-001021
19-001024
20-001601
91-030002
91-130005
91-500001
91-600014
91-600015
91-620001
96-110034
96-700034
96-700035
97-400002
5POLE COMBLINE BANDPASS FILTER
2 PORT ISOLATOR 360-470MHz SMA
1/4Watt 0-30dB SWITCHED ATTENUATOR
LNA 380-500MHz 1Watt
LNA. 380-500MHz 30dB
DUAL DC/DC CONVERTER 24V-12V 1A
SIMPLEX CONTROLLER
ALC ATTENUATOR
SIMPLEX RX/SQUELCH & AF
ATTENUATOR COVER
ATTENUATOR MOUNTING
CHANNEL MODULE 450MHz 8p 15kHz BW + IF OUT
19" CHASSIS 400mm DEEP LID
4U 19" RACK MOUNT 400mm DEEP CHASSIS
4U 19" CHASSIS FRONT PANEL
12V RELAY BOARD
N ADAPTOR PANEL FEMALE/FEMALE
SMA BULKHEAD ADAPTOR FEMALE/FEMALE
POWER PLUG 3 PIN PANEL MOUNT NC-X
'D' 9 WAY SOCKET (NON FILTERED)
'D' 9 WAY PLUG (NON FILTERED)
'D' 25 WAY SOCKET
FUSE HOLDER 16-30A, 32mm
LED RED 5mm IP67
LED GREEN 5mm IP67
4U HANDLE [ALLOY]
Denver Channelised CE
User/Maintenance Handbook
Handbook Nō.-50-063708HBKM
Issue No:-2
Date:-03/11/2003
Page:-17 of 51
3.1.6
Power Supply Shelf 50-063707 Parts List
80-008902
80-008920
80-008921
80-008922
80-008925
91-510004
91-510035
91-520001
91-520005
91-520010
91-520032
91-600015
91-700017
91-700062
91-800015
91-800016
91-800017
91-800031
92-900014
96-300054
96-500005
96-500009
96-600001
96-700034
96-700035
24V RELAY PCB ASSEMBLY
DUAL PSU HEATSINK
DUAL PSU CASE
DUAL PSU LID
DUAL PSU FRONT PANEL
3 PIN PANEL MOUNT SOCKET NC-X
3 WAY MATE N LOK PLUG HOUSING
POWER MAINS INLET FIXED
MAINS LEAD (IEC)
MAINS RETAINING CLIP
MATE N LOK SOCKET CONTACT 20/14 AWG
'D' 9 WAY PLUG (NON FILTERED)
ICD 15 WAY 0.1' CONNECTOR
6 WAY 0.1' CONNECTOR
TRIPLE DECK TERMINAL BLOCK
TRIPLE DECK TERMINAL JUMPER
TRIPLE DECK TERMINAL END
SYMETRIC 35 x 7.5mm DIN RAIL
DIN RAIL (TOP HAT) EARTH CLAMP M5
24V 17A PSU 400W (XP BCC)
DC INPUT FILTERS
SURGE FILTER, 15A, 110V, DIN RAIL
INSULATING BOOT LARGE
LED RED 5mm IP67
LED GREEN 5mm IP67
Denver Channelised CE
User/Maintenance Handbook
Handbook Nō.-50-063708HBKM
Issue No:-2
Date:-03/11/2003
Page:-18 of 51
3.2
Technical Specification
PARAMETER
SPECIFICATION
Frequency range: 457.0-458.5MHz (Downlink) + 452.850MHz
452.0-453.5MHz (Uplink)
Bandwidth: 1.5MHz
Gain: 80dB (70dB +/- 10dB)
Gain Adjustment: 0 - 30dB (in 2dB steps)
Channel Bandwidth: 15kHz
Channel Selectivity: > 20dBc at +/-12.5kHz
Uplink Power output: +23dBm per channel
Downlink Power output: +23dBm per channel
OIP3: Uplink +50dBm
Downlink +54dBm
In-band Spurious Noise Figure: <-36dBm (30kHz B/W)
ALC: Fitted in each channel module
VSWR: better than 1.5:1
RF Connectors: N type, female
Temperature range:
operational: -30°C to +60°C
storage: -40°C to +70°C
PSU Chassis
Tunnel side Chassis
Base side Chassis
Summary alarm:
Simplex Chassis
(volt-free contacts at Krone block)
Downlink Channels Chassis
Uplink Channels Chassis
Rack Doors Open
Denver Channelised CE
User/Maintenance Handbook
Handbook Nō.-50-063708HBKM
Issue No:-2
Date:-03/11/2003
Page:-19 of 51
3.2.1
Channel Module Frequencies
Frequency (MHz)
457.050 (Downlink)
457.300 (Downlink)
457.775 (Downlink)
457.850 (Downlink)
458.225 (Downlink)
452.050 (Uplink)
452.300 (Uplink)
457.775 (Uplink)
453.225 (Uplink)
Frequency (MHz)
452.850(Uplink)
452.850(Downlink)
17-003012 Duplex Channel Modules
Bandwidth
Gain
ALC
15kHz
15dB
-25dBm
15kHz
15dB
-25dBm
15kHz
15dB
-25dBm
15kHz
15dB
-25dBm
15kHz
15dB
-25dBm
15kHz
15dB
-23dBm
15kHz
15dB
-23dBm
15kHz
15dB
-23dBm
15kHz
15dB
-23dBm
Qty.
17-010802 Simplex Channel Modules
Bandwidth
Gain
ALC
15kHz
25dB
-17dBm
15kHz
15dB
-20dBm
All with hardwired frequency selection
Qty.
Denver Channelised CE
User/Maintenance Handbook
Handbook Nō.-50-063708HBKM
Issue No:-2
Date:-03/11/2003
Page:-20 of 51
3.3
Mechanical Specification
PARAMETER
Height:
Width:
Depth:
Case (rack) size:
operational:
storage:
Weight:
Humidity:
RF Connectors:
Environmental Protection:
Shelves:
Finish:
Heatsinks:
Handles:
Temperature Range:
Supply Cable:
SPECIFICATION
38U Eurorack (1U=44.5mm)
600mm
600mm
-30°C to +60°C
-40°C to +70°C
>100kg*
10 – 90% non-condensing
N type female
IP40
Alocrom
Black anodised
Alloy
Unit supplied with suitable supply input
leads with connector and specified
length of cable.
Note: Individual shelf weights not specified.
Denver Channelised CE
User/Maintenance Handbook
Handbook Nō.-50-063708HBKM
Issue No:-2
Date:-03/11/2003
Page:-21 of 51
4.
SYSTEM DRAWINGS
Drg. Nō. 50-063751, Channelised Cell Enhancer Rack Layout Drawing
4.1
FRONT
BACK
50-063704
P OWE R
A LA R M
Aer a
i l Facitil e
is
Lim ti ed
2U SPACE
50-063703
P OWE R
A LA R M
Aer a
i l Facitil e
is
Lim ti ed
2U SPACE
50-063706
P OWE R
A LA R M
Aer a
i l Facitil e
is
Lim ti ed
2U SPACE
50-063702
P OWE R
A LA R M
Aer a
i l Facitil e
is
Lim ti ed
2U SPACE
50-063705
P OWE R
A LA R M
Aer a
i l Facitil e
is
Lim ti ed
2U SPACE
ON
50-063707
O FF
Aer a
i l Facitil e
is
Lim ti ed
4U SPACE
LEAKY FEEDER 2
LEAKY FEEDER 1
RF INTERCONNECTION CABLES
PRODUCTION ISSUE
No
THIRD ANGLE PROJECTION
Tel : 01494 777000 Fax : 01494 777002
FOR 5 CHN UHF CHANNELISED CE 80dB
CUSTOMER
CHKD
RB
APPD
BB
DRAWING No
SCALE
50-063751
1:10
Denver Channelised CE
User/Maintenance Handbook
Handbook Nō.-50-063708HBKM
RACK INTERCONNECTION AND LAYOUT
ALL DIMENSIONS ARE IN
mm UNLESS OTHERWISE
STATED
NO DECIMAL PLACE ± 1mm
ONE DECIMAL PLACE ± 0.3mm
TWO DECIMAL PLACES ± 0.1mm
23/09/03
BY
Aerial Facilities Limited
TOLERANCES
MNR
MNR
DAT E
ISSUE
TITLE
DATE
23/09/03
DESCRIPT ION
THIS IS A PROPRIETARY DESIGN OF AERIAL FACILITIES LTD.
REPRODUCTION OR USE OF THIS DESIGN BY OTHERS IS
PERMISSIBLE ONLY IF EXPRESSLY AUTHORISED IN WRITING
BY AERIAL FACILITIES LTD.
DRAWN
BASE PORT 1
1A
ALARM OUTPUT
BASE PORT 2
Issue No:-2
Date:-03/11/2003
Page:-22 of 51
Handbook Nō.-50-063708HBKM
Issue No:-2
Date:-03/11/2003
User/Maintenance Handbook
Denver Channelised CE
Page:-23 of 51
THIRD ANGL E PROJECTION
ANT
FACING
BASE 1
50-063706
UHF SIMPLEX
CHASSIS,4U
ANT
FACING
BASE 2
DE S CRIP TI ON
PRODUCTION ISSUE
No
ADDING TEXT
1A
IS S UE
LNA
31dB GAIN
11-007402
SPLITTER
05-002603
LNA
31dB GAIN
11-007402
1B
BANDPASS FILTER
451.5-453MHz
02-010701
BANDPASS FILTER
452-453.5MHz
02-010701
50-063702
BASE SIDE
DUPLEX/PA
CHASSIS,4U
BANDPASS FILTER
457-458.5MHz
02-010701
SPLITTER
05-002603
DA TE
30/07/03
23/09/03
MNR
BY
MNR
CHK D
APPD
457. 300MH z
B / W=15kH z
SQUELCH
SQUELCH
NO DE CIMA L P LA CE ± 1mm
ONE DE CIMA L P LA CE ± 0. 3mm
TWO DE CI MA L P LA CE S ± 0.1mm
TOLE RA NCE S
S CA LE
dB
GAIN 15dB
ALC -20dBm
17-002802
dB
AGC ATT.
17-001201
COMBINER
05-002603
THIS IS A P ROP RIE TA RY DE S IGN OF A E RIA L FA CILITI E S LTD.
RE P RODUCTION OR US E OF THI S DE S I GN B Y OTHE RS I S
P E RMIS S IB LE ONLY I F E X P RE S S LY A UTHORIS E D I N WRITI NG
B Y A E RI A L FA CI LI TI E S LTD.
CHANNEL MODULE
17-010802
FRE QUE NCY P ROGRA MMING DA TA
B / W=15kH z
452. 850MH z
2 x SIMPLEX
CONTROLLER
13-002811
GAIN 25dB
ALC -17dBm
FRE QUE NCY P ROGRA MMING DA TA
17-002802
PB
452. 850MH z
B / W=15kH z
AGC ATT.
17-001201
COMBINER
05-003803
COMBINER
05-003803
CHANNEL MODULE
17-010802
LNA
21dB GAIN
11-007302
FRE QUE NCY P ROGRA MMI NG DA TA
B / W=15kH z
458. 225MH z
FRE QUE NCY P ROGRA MMI NG DA TA
B / W=15kH z
457. 850MH z
GAIN 15dB
ALC -25dBm
FRE QUE NCY P ROGRA MMI NG DA TA
B / W=15kH z
457. 775MH z
FRE QUE NCY P ROGRA MMI NG DA TA
3 0/07 /03
DA TE
457. 050MH z
B / W=15kH z
FRE QUE NCY P ROGRA MMI NG DA TA
A LL DIME NS IONS A RE IN mm
UNLE S S OTHE RWIS E S TA TE D
RB
MNR
AGC ATT.
17-001201
0-30dB
ATTENUATOR
10-000701
DRA WN
dB
dB
5 x CHANNEL MODULE
17-003012
LNA
31dB GAIN
11-007402
LPA
15dB GAIN
11-006102
SPLITTER
05-003803
SPLITTER
05-003803
LPA
15dB GAIN
11-006102
20W PA
23dB GAIN
12-016301
50-063703
DOWNLINK
CHANNELS
4U
ISOLATOR
08-004905
ISOLATOR
08-004905
dB
0-30dB
ATTENUATOR
10-000701
LNA
31dB GAIN
11-007402
COMBINER
05-003401
LNA
21dB GAIN
11-007302
SPLITTER
05-003803
SPLITTER
05-003803
LPA
15dB GAIN
11-006102
Tel : 01494 777000
Fax : 01494 777002
England
UNITS
24V
DC
OUTPUT
TO
SPLITTER
05-002603
50-063704
UPLINK
CHANNELS
4U
Aerial Facilities Limited
LPA
15dB GAIN
11-006102
GAIN 15dB
ALC -23dBm
FRE QUE NCY P ROGRA MMING DA TA
B / W=15kH z
453. 225MH z
FRE QUE NCY P ROGRA MMING DA TA
B / W=15kH z
452. 775MH z
FRE QUE NCY P ROGRA MMING DA TA
B / W=15kH z
452. 300MH z
FRE QUE NCY P ROGRA MMING DA TA
B / W=15kH z
452. 050MH z
4 x CHANNEL MODULE
17-003012
CUS TOME R
TITLE
6 x DC FILTERS
LNA
31dB GAIN
11-007402
400W
PSU
400W
PSU
LEAKY
FEEDER
PORT 1
10
DRA WI NG No
SYSTEM DIAGRAM
11
50-063781
LEAKY
FEEDER
PORT 2
12
12
50-063707
PSU CHASSIS
110V
AC
INPUT
50-063705
LCX SIDE
DUPLEX/PA
CHASSIS,4U
15A
AC
FILTER
96-500009
7.5A MCB
96-920045
BANDPASS FILTER
452-453.5MHz
02-010701
BANDPASS FILTER
457-458.5MHz
02-010701
11
5 CHN UHF CHANNELISED CE 80dB
BANDPASS FILTER
451.5-453MHz
02-010701
dB
0-30dB
ATTENUATOR
10-000701
20W PA
23dB GAIN
12-016301
10
4.2
Drg. Nō. 50-063781, Channelised Cell Enhancer System Diagram
Handbook Nō.-50-063708HBKM
Issue No:-2
Date:-03/11/2003
CHKD
User/Maintenance Handbook
Denver Channelised CE
Page:-24 of 51
APPD
BB
ALL DIMENSIONS ARE IN mm
UNLESS OTHERWISE STATED
RB
A e ri a l F a c i l i t i e s
L im i te d
22/09/03
DATE
177.50
482.60
NO DECIMAL PLACE ± 1mm
ONE DECIMAL PLACE ± 0.3mm
TWO DECIMAL PLACES ± 0.1mm
TOLERANCES
SCALE
THIS IS A PROPRIETARY DESIGN OF AERIAL FACILITIES LTD.
REPRODUCTION OR USE OF THIS DESIGN BY OTHERS IS
PERMISSIBLE ONLY IF EXPRESSLY AUTHORISED IN WRITING
BY AERIAL FACILITIES LTD.
POWER
MNR
DRAWN
1:4
THIRD ANGLE PROJECTION
Tel : 01494 777000
Fax : 01494 777002
Aerial Facilities Limited
England
400.00
443.00
1A
A (SMA)
ISSUE
DESCRIPTION
PRODUCTION ISSUE
DRAWING.No
OUTLINE DRAWING
50-063792
BASE SIDE DUPLEX/PA (4U CHASSIS)
No
PART No : 50-063702
DC INPUT
FUSE T10A
ALARM
BASE 2 ('N'TYPE)
171.50
CUSTOMER
TITLE
B (SMA)
C (SMA)
DATE
22/09/03
BY
MNR
EARTH STUD
ATTENUATOR
SWITCHES
4.3
Drg. Nō. 50-063792, Base Side Duplex Shelf Outline Drawing
ALARM
Handbook Nō.-50-063708HBKM
Issue No:-2
Date:-03/11/2003
CHKD
User/Maintenance Handbook
Denver Channelised CE
Page:-25 of 51
APPD
BB
ALL DIMENSIONS ARE IN mm
UNLESS OTHERWISE STATED
RB
A e ri a l F a c i l i t i e s
L im i te d
22/09/03
DATE
177.50
482.60
NO DECIMAL PLACE ± 1mm
ONE DECIMAL PLACE ± 0.3mm
TWO DECIMAL PLACES ± 0.1mm
TOLERANCES
SCALE
THIS IS A PROPRIETARY DESIGN OF AERIAL FACILITIES LTD.
REPRODUCTION OR USE OF THIS DESIGN BY OTHERS IS
PERMISSIBLE ONLY IF EXPRESSLY AUTHORISED IN WRITING
BY AERIAL FACILITIES LTD.
POWER
MNR
DRAWN
1:4
THIRD ANGLE PROJECTION
Tel : 01494 777000
Fax : 01494 777002
Aerial Facilities Limited
England
400.00
443.00
CUSTOMER
TITLE
171.50
1A
ISSUE
DESCRIPTION
PRODUCTION ISSUE
DRAWING.No
OUTLINE DRAWING
50-063793
DOWNLINK CHANNELS (4U CHASSIS)
No
PART No : 50-063703
ALARM
FUSE T3.15A
D (SMA)
A (SMA)
DATE
22/09/03
BY
MNR
DC INPUT
EARTH STUD
4.3
Drg. Nō. 50-063793, Downlink Channels Shelf Outline Drawing
ALARM
Handbook Nō.-50-063708HBKM
Issue No:-2
Date:-03/11/2003
CHKD
User/Maintenance Handbook
Denver Channelised CE
Page:-26 of 51
APPD
BB
ALL DIMENSIONS ARE IN mm
UNLESS OTHERWISE STATED
RB
A e ri a l F a c i l i t i e s
L im i te d
22/09/03
DATE
177.50
482.60
NO DECIMAL PLACE ± 1mm
ONE DECIMAL PLACE ± 0.3mm
TWO DECIMAL PLACES ± 0.1mm
TOLERANCES
SCALE
THIS IS A PROPRIETARY DESIGN OF AERIAL FACILITIES LTD.
REPRODUCTION OR USE OF THIS DESIGN BY OTHERS IS
PERMISSIBLE ONLY IF EXPRESSLY AUTHORISED IN WRITING
BY AERIAL FACILITIES LTD.
POWER
MNR
DRAWN
1:4
THIRD ANGLE PROJECTION
Tel : 01494 777000
Fax : 01494 777002
Aerial Facilities Limited
England
400.00
443.00
CUSTOMER
TITLE
171.50
1A
ISSUE
DESCRIPTION
PRODUCTION ISSUE
DRAWING.No
OUTLINE DRAWING
50-063794
UPLINK CHANNELS (4U CHASSIS)
No
PART No : 50-063704
ALARM
FUSE T3.15A
F (SMA)
E (SMA)
B (SMA)
DATE
22/09/03
BY
MNR
DC INPUT
EARTH STUD
4.4
Drg. Nō. 50-063794, Uplink Channels Shelf Outline Drawing
ALARM
Handbook Nō.-50-063708HBKM
Issue No:-2
Date:-03/11/2003
CHKD
User/Maintenance Handbook
Denver Channelised CE
Page:-27 of 51
APPD
BB
ALL DIMENSIONS ARE IN mm
UNLESS OTHERWISE STATED
RB
A e ri a l F a c i l i t i e s
L im i te d
22/09/03
DATE
177.50
482.60
NO DECIMAL PLACE ± 1mm
ONE DECIMAL PLACE ± 0.3mm
TWO DECIMAL PLACES ± 0.1mm
TOLERANCES
SCALE
THIS IS A PROPRIETARY DESIGN OF AERIAL FACILITIES LTD.
REPRODUCTION OR USE OF THIS DESIGN BY OTHERS IS
PERMISSIBLE ONLY IF EXPRESSLY AUTHORISED IN WRITING
BY AERIAL FACILITIES LTD.
POWER
MNR
DRAWN
1:4
THIRD ANGLE PROJECTION
Tel : 01494 777000
Fax : 01494 777002
Aerial Facilities Limited
England
400.00
443.00
1A
ISSUE
DESCRIPTION
PRODUCTION ISSUE
DRAWING.No
OUTLINE DRAWING
50-063795
TUNNEL SIDE DUPLEXER/PA (4U CHASSIS)
No
PART No : 50-063705
DC INPUT
FUSE T10A
ALARM
LEAKY FEEDER
('N'TYPE)
171.50
CUSTOMER
TITLE
D (SMA)
E (SMA)
DATE
22/09/03
BY
MNR
EARTH STUD
ATTENUATOR
SWITCHES
4.5
Drg. Nō. 50-063795, Tunnel Side Duplexer Shelf Outline Drawing
ALARM
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APPD
BB
ALL DIMENSIONS ARE IN mm
UNLESS OTHERWISE STATED
RB
A e ri a l F a c i l i t i e s
L im i te d
22/09/03
DATE
177.50
482.60
NO DECIMAL PLACE ± 1mm
ONE DECIMAL PLACE ± 0.3mm
TWO DECIMAL PLACES ± 0.1mm
TOLERANCES
SCALE
THIS IS A PROPRIETARY DESIGN OF AERIAL FACILITIES LTD.
REPRODUCTION OR USE OF THIS DESIGN BY OTHERS IS
PERMISSIBLE ONLY IF EXPRESSLY AUTHORISED IN WRITING
BY AERIAL FACILITIES LTD.
POWER
MNR
DRAWN
1:4
THIRD ANGLE PROJECTION
Tel : 01494 777000
Fax : 01494 777002
Aerial Facilities Limited
England
400.00
443.00
CUSTOMER
TITLE
171.50
1A
DRAWING.No
OUTLINE DRAWING
50-063796
ISSUE
DESCRIPTION
PRODUCTION ISSUE
UHF SIMPLEX (4U CHASSIS)
No
PART No : 50-063706
ALARM
FUSE T3.15A
DATE
22/09/03
BY
MNR
DC INPUT
BASE 1
('N'TYPE)
D (SMA)
EARTH STUD
LEAKY FEEDER
('N'TYPE)
A (SMA)
4.6
Drg. Nō. 50-063796, UHF Simplex Shelf Outline Drawing
ALARM
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Page:-29 of 51
APPD
BB
ALL DIMENSIONS ARE IN mm
UNLESS OTHERWISE STATED
RB
22/09/03
DATE
A e ri a l F a c i l i t i e s
L im i te d
MNR
DRAWN
482.60
NO DECIMAL PLACE ± 1mm
ONE DECIMAL PLACE ± 0.3mm
TWO DECIMAL PLACES ± 0.1mm
TOLERANCES
SCALE
THIS IS A PROPRIETARY DESIGN OF AERIAL FACILITIES LTD.
REPRODUCTION OR USE OF THIS DESIGN BY OTHERS IS
PERMISSIBLE ONLY IF EXPRESSLY AUTHORISED IN WRITING
BY AERIAL FACILITIES LTD.
177.50
1:4
Tel : 01494 777000
Fax : 01494 777002
171.50
TITLE
CUSTOMER
350.00
430.00
THIRD ANGLE PROJECTION
Aerial Facilities Limited
England
350.00
393.00
ON
ISSUE
DESCRIPTION
PRODUCTION ISSUE
PART No : 50-063707
O FF
DRAWING.No
OUTLINE DRAWING
50-063797
POWER SUPPLY UNIT (4U CHASSIS)
No
1A
24V DC
OUTPUT
MAINS
TRIP
SWITCH
110/125V AC
INPUT
DATE
22/09/03
ALARMS
EARTH STUD
BY
MNR
4.7
Drg. Nō. 50-063797, Power Supply Shelf Outline Drawing
5.
SUB-UNIT MODULES
UHF Duplex Shelf 50-063702
5.1
5.1.1
Bandpass Filter (02-010701)
5.1.1.1
Description
The bandpass filters are multi-section designs with a bandwidth dependent upon the
passband frequencies, (both tuned to customer requirements). The response shape is basically
Chebyshev with a passband design ripple of 0.1dB. The filters are of combline design, and
are carefully aligned during manufacture in order to optimise the insertion loss, VSWR and
intermodulation characteristics of the unit. The tuned elements are silver-plated to reduce
surface ohmic losses and maintain a good VSWR figure and 50Ω load at the input and output
ports.
Being passive devices, the bandpass filters should have an extremely long operational life
and require no maintenance. Should a filter be suspect, it is usually most time efficient to
replace the module rather than attempt repair or re-tuning.
5.1.1.2
Technical Specification
PARAMETER
Response Type:
SPECIFICATION
Chebyshev
457.0-458.5MHz (Downlink)
Frequency Range:
452.0-453.5MHz (Uplink)
Bandwidth:
1.5 MHz
Number of Sections:
Insertion Loss:
1.7 dB (typical)
VSWR:
better than 1.2:1
Connectors:
SMA
Power Handling:
100W max
operation: -30°C to +60°C
Temperature range
storage:
-40°C to +70°C
Weight:
3 kg (typical)
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5.1.2
5.1.2.1
3dB UHF Splitter (05-002603)
Description
The 3dB Splitter/Combiner used is a device for accurately matching two or more RF signals
to single or multiple ports, whilst maintaining an accurate 50Ω load to all inputs/outputs
over the specified frequency range and ensuring that the VSWR and insertion losses are kept
to a minimum.
5.1.2.2
Technical Specification
PARAMETER
Frequency Range:
Bandwidth:
Inputs:
Outputs:
Insertion Loss:
Isolation:
Return Loss (VSWR) – Input:
Impedance:
Power Rating – Splitter:
Power Rating – Combiner:
Connectors:
Weight:
SPECIFICATION
380 - 520 MHz
140 MHz
3.5 dB (typical)
>18 dB
Better than 1.3:1
50 ς
20 Watts
0.5 Watt
SMA female
200 gm (approximately)
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5.1.3
5.1.3.1
Ferrite Isolator (08-930003)
Description
The purpose of fitting an isolator to the output of a transmitter in a multi-transmitter
environment is such that each output is afforded a degree of isolation from every other.
Were this not to be the case, two simultaneous transmissions could interfere to create
intermodulation products, especially in the non-linear power amplifier output stages of
the transmitters. Whilst this effect would not affect the intelligibility of the two original
transmissions, a further two new transmissions would be created which could themselves
cause interference to third party users. In this case it is to isolate the duplex and simplex
uplink power amplifiers from inter-modulating each other.
A ferrite-isolator, (or junction circulator, as it is sometimes known) generally consists of
several major components; for example a ferrite region, a magnetic circuit and matching
circuitry which can form a three port isolator.
The ferrite isolator is a ferro-magnetic device, which has directional properties. In the
forward direction, RF arriving at the input is passed to the output with minimal
attenuation. In the reverse direction, RF arriving at the output due to reflected power
from a badly matched load, or due to coupling with another transmitter, is routed into an
RF load where it is absorbed. The isolator therefore functions to prevent reflected RF
energy reaching the power amplifier where it could cause intermodulation products or
premature device failure.
Ferrite materials form the active part of the junction in which the actual circulation signal
flow occurs. When a signal encounters a ferrite disk (e.g. port l) biased with a magnetic
field, it divides and part of the signal flows in a clockwise direction, while a portion of
the signal travels in the counter-clockwise direction, each with a different velocity. The
combined effects of the two rotating signals, create a standing wave around the perimeter
of the ferrite disk. By choosing the proper value of the ferrite’s magnetisation and the
magnetic field, the standing wave can be made to create a voltage null at port 3, such that
no power is transferred to it and a peak voltage at port 2, transferring maximum power to
it from port l. If a termination is placed on port 3 to absorb the signal flow in the reverse
direction the device functions as an isolator.
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5.1.4
5.1.4.1
¼Watt 0- -30dB Switched Attenuator (10-000701)
General Application
In many practical applications for Cell Enhancers etc., the gain in each path is found to be
excessive. Therefore, provision is made within the unit for the setting of attenuation in
each path, to reduce the gain.
5.1.4.2
Switched Attenuators
The AFL switched attenuators are available in two different types; 0 – 30dB in 2 dB steps
(as in this case), or 0 – 15dB in 1 dB steps. The attenuation is simply set using the four
miniature toggle switches on the top of each unit. Each switch is clearly marked with the
attenuation it provides, and the total attenuation in line is the sum of the values switched
in. They are designed to maintain an accurate 50Ω impedance over their operating
frequency at both input and output.
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5.1.5
5.1.5.1
Low Noise Amplifiers (11-006102, 11-007302 & 11-007402)
Description
The low noise amplifiers used are double stage solid-state low-noise amplifiers. 11006102 is a low noise amplifier with a 1Watt power device in its final stage, enabling it to
be used as a driver for the 20W power amplifier. Class A circuitry is used in the units to
ensure excellent linearity over a very wide dynamic range. The two active devices are
very moderately rated to provide a long trouble-free working life. There are no
adjustments on these amplifiers, and in the unlikely event of failure the entire amplifier
should be replaced.
5.1.5.2
Technical Specification, 11-007302
PARAMETER
Frequency range:
Bandwidth:
Gain:
1dB Compression Point:
3rd order intercept:
Input/Output return loss:
Noise figure:
Connectors:
Supply:
operational:
Temperature range:
storage:
Weight:
Size:
SPECIFICATION
380-500MHz
<140MHz
20-22dB
+23.5dB (typical)
+36dB (typical)
>20dB
<1.3dB
SMA female
200-230mA @ 24V DC
-30°C to +60°C
-30°C to +70°C
<300gm
90 x 55 x 30.2mm (case only)
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5.1.5.3
Technical Specification, 11-007402
PARAMETER
Frequency range:
Bandwidth:
Gain:
1dB Compression Point:
3rd order intercept:
Input/Output return loss:
Noise figure:
Connectors:
Supply:
Weight:
Size:
operation:
Temperature range
storage:
5.1.5.4
SPECIFICATION
380-500MHz
<140MHz
30-32dB
+22dBm (typical)
+34-35dBm (typical)
>20dB
<1.3dB
SMA female
300-330mA @ 24V DC
<300gm
90 x 55 x 30.2mm (case only)
-30°C to +60°C
-40°C to +70°
Technical Specification, 11-006102
Frequency range:
Bandwidth:
Gain:
1dB compression point:
IP3:
I/O return loss:
Noise figure:
Supply requirement:
Consumption:
operation:
Temperature range
storage:
380-500MHz
<150MHz
15dB (typical)
+31dBm
+46dBm
>18dB
<1.3dB
10 – 24V, DC
510-540mA @ (10 – 24V)
-30°C to +60°C
-40°C to +70°
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5.1.6
5.1.6.1
20W Power Amplifier (12-016301)
Description
This amplifier is a Class A 20W power amplifier from 380MHz to 470MHz in a 1 stage
balanced configuration. It demonstrates a very high linearity and a very good input/output
return loss. A built in a Current Fault Alarm Function monitors DC conditions to both
transistor collectors and gives an alarm upon bias change.
Its housing is a machined aluminium case (Alocrom 1200 finish) with SMA connectors
for the RF input/output and a D-Type connector for the power supply and the Current
Fault Alarm Function.
5.1.6.2
Technical Specification
PARAMETER
Frequency range:
Small signal gain:
Gain flatness:
I/O Return loss:
1dB compression point:
OIP3:
Supply voltage:
Supply current:
Temperature range operational:
storage:
Weight:
SPECIFICATION
380-470MHz
23dB
±1.7dB
>18dB
+43dBm
+55dBm
24V DC
3.8Amps (typical)
-30°C to +60°C
-40°C to +70°C
<2kg (no heatsink)
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5.2
5 Channel UHF Downlink Shelf 50-063703
5.2.1
3dB Splitter 905-002603) See section 5.1.2
5.2.2
3 Way Splitter/Combiner (05-003803)
5.2.2.1
Description
The 3 way Splitter/Combiner used is a ‘Zinger’ type design for accurately matching three
RF signals to a single port, whilst maintaining an accurate balance between ports, and
ensuring that the VSWR and insertion losses attain the best possible specification. They are
specialist passive devices and must be replaced in the unlikely event of failure.
5.2.2.2
Technical Specification
PARAMETER
Frequency Range:
Bandwidth:
Inputs:
Outputs:
Insertion Loss:
Isolation:
Return Loss (VSWR) – Input:
Return Loss (VSWR) – Output:
Impedance:
Power Rating – Splitter:
Power Rating – Combiner:
Connectors:
Size:
SPECIFICATION
380 - 520 MHz
140 MHz (typical)
5.2 dB (typical)
>18 dB
Better than 1.35:1
Better than 1.35:1
50 ς
20 Watts
0.5 Watt
SMA female
54 x 44 x 21 mm (including
connectors)
Weight: 200 gm (approximately)
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5.2.3
5.2.3.1
Dual DC/DC Converter (13-001803)
Description
This unit is employed where it is necessary to derive two fixed voltage power supply rails
from some higher voltage. Typically it is used to derive 5, 8, 12 or 15V from a 24V input.
The circuit is based upon a pair of LM257 series variable voltage regulators (LM2576, 12
& 15V & LM2575, 5V), which are each capable of supplying an absolute maximum of
1.5A output current. Note that at full output current, the dissipation of the device must
remain within design limits, bearing in mind the voltage which is being dropped across it.
The maximum allowable dissipation will also depend on the efficiency of the heatsink on
which the device is mounted.
5.2.3.2
Technical Specification
PARAMETER
Operating Voltage:
Output Voltage:
Output Current:
Connections:
Temperature
operational:
Range
storage
PCB Size:
SPECIFICATION
21 – 27V DC
12V & 12V (typical)
1.0A (maximum per o/p)
Screw Terminal Block
-30ΒC to +60ΒC
-40ΒC to +70ΒC
85 x 63mm
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5.2.4
5.2.4.1
Channel Selective Module (17-003006)
Description
The channel selectivity module is employed when the Cell Enhancer requirement dictates
that very narrow bandwidths (single operating channels), must be selected from within
the operating passband. One channel selectivity module is required for each channel.
The Channel Selectivity Module is an Up/Down frequency converter that mixes the
incoming channel frequency with a synthesised local oscillator, so that it is downconverted to an Intermediate Frequency (IF) in the upper HF range. An eight pole crystal
filter in the IF amplifier provides the required selectivity to define the operating passband
of the Cell Enhancer to a single PMR channel. The same local oscillator then converts the
selected IF signal back to the channel frequency.
Selectivity is obtained from a fixed bandwidth block filter operating at an intermediate
frequency (IF) in the low VHF range. This filter may be internal to the channel selectivity
module (Crystal or SAW filter) or an externally mounted bandpass filter, (LC or Helical
Resonator). Various IF bandwidths can therefore be accommodated. A synthesized Local
Oscillator is employed in conjunction with high performance frequency mixers, to
translate between the signal frequency and IF.
The operating frequency of each channel selectivity module is set by the programming of
channel selectivity module frequencies and is achieved digitally, via hard wired links,
banks of DIP switches, or via an onboard RS232 control module, providing the ability to
remotely set channel frequencies.
Automatic Level Control (ALC) is provided within each channel selectivity module such
that the output level is held constant for high level input signals. This feature prevents
saturation of the output mixer and of the associated amplifiers.
Alarms within the module inhibit the channel if the synthesised frequency is not locked.
The synthesiser will not usually go out of lock unless a frequency far out of band is
programmed.
The channel selectivity module is extremely complex and, with the exception of channel
frequency programming within the design bandwidth, it cannot be adjusted or repaired
without extensive laboratory facilities and the necessary specialised personnel. If a fault
is suspected with any channel selectivity module it should be tested by substitution and
the complete, suspect module should then be returned to AFL for investigation.
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5.2.4.2
Drg. Nō. 17-003080, Generic Channel Module Block Diagram
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5.2.5
5.2.5.1
12V Relay Board (20-001601)
Description
The General Purpose Relay Board allows the inversion of signals and the isolation of
circuits. It is equipped with two dual pole change-over relays RL1 and RL2, with
completely isolated wiring, accessed via screw terminals.
Both relays are provided with polarity protection diodes and diodes for suppressing the
transients caused by "flywheel effect" which can destroy switching transistors or induce
spikes on neighbouring circuits. It’s common use is to amalgamate all the alarm signals into
one, volts-free relay contact pair for the main alarm system.
Note that the board is available for different voltages (12 or 24V) depending on the type of
relays fitted at RL1 and RL2.
5.2.5.2
Technical Specification
PARAMETER
SPECIFICATION
Operating voltage: 8 to 30V (floating earth)
Alarm Threshold: Vcc - 1.20 volt +15%
Alarm output relay contacts:
Max. switch current: 1.0Amp
Max. switch volts: 120Vdc/60VA
Max. switch power: 24W/60VA
Min. switch load: 10.0µA/10.0mV
Relay isolation: 1.5kV
Mechanical life: >2x107 operations
Relay approval: BT type 56
Connector details: Screw terminals
operational: :-30°C to +60°C
Temperature range
storage: :-40°C to +70°C
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5.3
5.3.1
5.3.1.1
UHF Uplink 4 Channel Shelf 50-063704
Four Way Splitter (05-003401)
Description
The Splitter/Combiner used is a device for accurately matching two or more RF signals to
single or multiple ports, whilst maintaining an accurate 50Ω load to all inputs/outputs and
ensuring that the VSWR and insertion losses are kept to a minimum. Any unused ports
will be terminated with an appropriate 50Ω load.
5.3.1.2
Technical Specification 05-003401
PARAMETER
Frequency range:
Bandwidth:
Rejection:
Insertion loss:
Connectors:
Weight:
operational
Temperature
range:
storage
SPECIFICATION
70 – 250MHz
180MHz
>14dB
6.5dB (in band, typical)
SMA
<1.5kg
-30ΒC to +60ΒC
-40ΒC to +70ΒC
All other modules in this shelf are described elsewhere in this document.
5.4
UHF Duplex/PA Shelf 50-063705
All modules in this shelf are described elsewhere in this document.
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5.5
5.5.1
5.5.1.1
UHF Simplex Channel Shelf 60-063706
Simplex Controller PCB (13-002811)
Description
The Simplex controller logic PCB monitors the receiver squelch output for a signal change
and activates the supply switching for either the uplink or down link path accordingly. In
normal operation, the low level Rx path is activated, any the associated Tx path is switched
off. When a signal is detected by the Rx Squelch module, the Rx squelch output goes low
(0v), which triggers the controller logic PCB. The PCB mutes the power supply to the
opposite path Rx LNA’s and switches on the power to the output power stage. In order to
prevent the power stage noise blocking the opposite path’s low level receiver, the power
amplifier is normally muted.
5.5.2
5.5.2.1
ALC Attenuator Module (17-001201)
Description
The AFL Automatic Gain Control system consists of two units, a detector/amplifier and an
attenuator. The detector/amplifier unit is inserted in the RF path on the output of the power
amplifier, and the attenuator is situated in the RF path between the 1st and 2nd stages of
amplification. However, in this case only the attenuator is employed as part of the simplex
control system
The attenuator comprises a 50Ω P.I.N diode, voltage-variable attenuator with a range of 3 to
30dB. The attenuation is controlled by a DC voltage which is derived in this instance from
the simplex controller board.
5.5.3
5.5.3.1
Simplex Squelch Controller PCB (17-002802)
Description
The difference in signal levels between the up and downlink paths means that the channel
modules would latch onto any signal in the band rather than a signal at the desired channel
frequency. This is achieved, in part, to having the simplex controller apply maximum
attenuation (via the AGC attenuator unit) to the downlink path, when the uplink is active.
All other modules in this shelf are described elsewhere in this document.
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5.6
5.6.1
5.6.1.1
Power Supply Shelf 50-063707
24V, 400W Power Supply Pack (96-300054)
Description
The power supply unit is a switched-mode type capable of supplying 24V DC at 17.0Amps
continuously. Equipment of this type typically requires approximately 10.0 Amps at 24V
DC, so the PSU will be used conservatively ensuring a long operational lifetime.
No routine maintenance of the PSU is required. If a fault is suspected, then the output
voltage from the power supply may be measured on its output terminals. This is typically set
to 24.5V using the multi-turn potentiometer mounted close to the DC output studs on the
PSU PCB.
All the PSU’s used in AFL Cell Enhancers are capable of operation from either 110 or
220V nominal AC supplies. The line voltage is sensed automatically, so no adjustment or
link setting is needed by the operator.
5.6.1.1
Technical Specification
Voltages:
Frequency:
Voltage:
Maximum current:
AC Input Supply
110 or 220V nominal
90 to 132 or 180 to 264V (absolute limits)
47 to 63Hz
DC Output Supply:
24V DC (nominal)
20 to 28V (absolute limits)
17A
All other modules in this shelf are described elsewhere in this document.
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6.
6.1
INSTALLATION
Initial Installation Record
When this equipment is initially commissioned, please use the equipment set-up record sheet
(or similar) in Appendix A. This will help both the installation personnel and AFL should
these figures be needed for future reference or diagnosis.
Installation will be a matter of securing each shelf into its appropriate place in the rack
cabinet, connecting all the cables (RF, AC, DC and alarm) to their correct ports/connectors
and system testing (at the customer’s discretion) to prove the original specification. Power
should not be applied until all connections have been double-checked and verified.
Refer to the system/layout drawing(s) in section 4.0 for cabling details.
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7.
7.1
7.1.1
MAINTENANCE
General Procedures
Fault Finding
In the event that the performance of the system is suspect, a methodical and logical approach
to the problem will reveal the cause of the difficulty. The System consists of modules within
a wall mounted, environmentally protected enclosure
Transmissions from the main base stations are passed though the system to the mobile radio
equipment; this could be a handheld radio or a transceiver in a vehicle. This path is referred
to as the downlink. The return signal path from the mobile radio equipment to the base
station is referred to as the uplink.
The first operation is to check the alarms of each of the active units and determine that the
power supplies to the equipment are connected and active.
This can be achieved remotely (via CEMS, the RS232 Cell Enhancer Management System,
if fitted), or locally with the front panel LED’s. The green LED on the front panel should be
illuminated, while the red alarm indicator should be off.
If an Alarm is on, then that individual shelf must be removed and individually tested against
the original test specification.
The individual amplifier units within the shelf have a green LED showing through a hole in
their piggy-back alarm board, which is illuminated if the unit is working correctly.
If an amplifier is suspect, check the DC power supply to the unit. If no other fault is
apparent use a spectrum analyser to measure the incoming signal level at the input and then
after reconnecting the amplifier input, measure the output level. Consult with the system
diagram to determine the expected gain and compare result.
In the event that there are no alarms on and all units appear to be functioning it will be
necessary to test the system in a systematic manner to confirm correct operation.
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7.1.2
Downlink
Confirm that there is a signal at the expected frequency and strength from the base station. If
this is not present then the fault may lay outside the system. To confirm this, inject a
downlink frequency signal from a known source at the master site BTS input and check for
output at the remote site feeder output.
If a signal is not received at the output it will be necessary to follow the downlink path
through the system to find a point at which the signal is lost. The expected downlink output
for the given input can be found in the end-to-end test specification.
7.1.3
Uplink
Testing the uplink involves a similar procedure to the downlink except that the frequencies
used are those transmitted by the mobile equipment.
7.1.4
Fault repair
Once a faulty component has been identified, a decision must be made on the appropriate
course to carry out a repair. A competent engineer can quickly remedy typical faults such as
faulty connections or cables. The exceptions to this are cable assemblies connecting
bandpass filter assemblies that are manufactured to critical lengths to maintain a 50-ohm
system. Care should be taken when replacing cables or connectors to ensure that items are of
the correct specification. The repair of component modules such as amplifiers and bandpass
filters will not usually be possible in the field, as they frequently require specialist
knowledge and test equipment to ensure correct operation. It is recommended that items of
this type are replaced with a spare unit and the faulty unit returned to AFL for repair.
Denver Channelised CE
User/Maintenance Handbook
Handbook Nō.-50-063708HBKM
Issue No:-2
Date:-03/11/2003
Page:-47 of 51
7.1.5
Checking service
Following the repair of any part of the system it is recommended that a full end-to-end test is
carried out in accordance with the test specification and that the coverage is checked by
survey.
It is important to bear in mind that the system includes a radiating cable network and base
stations that may be faulty or may have been damaged.
7.1.6
Service Support
Advice and assistance with maintaining and servicing this system are available by contacting
Aerial Facilities Ltd.
7.2
Tools & Test Equipment
The minimum tools and test equipment needed to successfully service this AFL product are
as follows:Spectrum analyser:
Signal Generator:
Attenuator:
Test Antenna:
Digital multi-meter:
Test cable x 2:
Test cable x 2:
Hand tools:
100kHz to 2GHz (Dynamic range = 90dB).
30MHz to 2GHz (-120dBm to 0dBm o/p level).
20dB, 10W, DC-2GHz, (N male – N female).
Yagi or dipole for operating frequency.
Universal Volt-Ohm-Amp meter.
N male – N male, 2M long RG214.
SMA male – N male, 1m long RG223.
Philips #1&2 tip screwdriver.
3mm flat bladed screwdriver.
SMA spanner and torque setter.
Denver Channelised CE
User/Maintenance Handbook
Handbook Nō.-50-063708HBKM
Issue No:-2
Date:-03/11/2003
Page:-48 of 51
7.3
7.3.1
Care of Modules
General Comments
Many of the active modules contain semiconductor devices utilising MOS technology, which
can be damaged by electrostatic discharge. Correct handling of such modules is mandatory to
ensure their long-term reliability.
To prevent damage to a module, it must be withdrawn/inserted with care. The module may
have connectors on its underside, which might not be visible to the service operative.
7.3.2
Module Removal (LNA’s, general procedure):
The following general instructions should be followed to remove a module:
Remove power to the unit
Remove all visible connectors (RF, DC & alarm)
Release module retaining screws.
Slowly but firmly, pull the module straight out of its position. Take care not to twist/turn
the module during withdrawal. (When the module is loose, care may be needed, as there
may be concealed connections underneath).
7.3.3
Module Replacement (general):
Carefully align the module into its location then slowly push the module directly straight
into its position, taking care not to twist/turn it during insertion.
Reconnect all connectors, RF, alarm, power etc.,(concealed connectors may have to be
connected first).
Replace retaining screws (if any).
Double-check all connections before applying power.
7.3.4
Power Amplifiers
1) Remove power to the unit. (Switch off @ mains/battery, or remove DC in connector)
2) Remove alarm wires from alarm screw terminal block or disconnect multi-way alarm
connector.
3) Carefully disconnect the RF input and output coaxial connectors (usually SMA)
If alarm board removal is not required, go to step 5.
4) There is (usually) a plate attached to the alarm board which fixes it to the amplifier,
remove its retaining screws and the alarm board can be withdrawn from the amplifier in
its entirety. On certain types of amplifier the alarm board is not mounted on a dedicated
mounting plate; in this case it will have to firstly be removed by unscrewing it from the
mounting pillars, in most cases, the pillars will not have not have to be removed before
lifting the amplifier.
Denver Channelised CE
User/Maintenance Handbook
Handbook Nō.-50-063708HBKM
Issue No:-2
Date:-03/11/2003
Page:-49 of 51
5) If the amplifier to be removed has a heatsink attached, there may be several different
ways it can have been assembled. The most commonly used method, is screws through
the front of the heatsink to threaded screw holes (or nuts and bolts), into the amplifier
within the main case. If the heatsink is mounted on the rear of the main case (e.g., against
a wall in the case of wall mounted enclosures), then the fixing method for the heatsink
will be from within the case, (otherwise the enclosure would have to be removed from the
wall in order to remove the heatsink).
When the heatsink has been removed, the amplifier may be unscrewed from the main
casing by its four corner fixings and gently withdrawn.
Fitting a new power amplifier module will be the exact reverse of the above.
Note: Do not forget to apply fresh heatsink compound to the heatsink/main case
joint and also between the amplifier and the main case.
7.3.5
Low Power Amplifier Replacement
Disconnect the mains power supply and disconnect the 24V dc supply connector for the
LPA.
Disconnect the RF input and output cables from the LPA.
Disconnect the alarm connector.
Remove the alarm monitoring wires from (D type connector) pins 9 and 10.
Remove the LPA module by removing the four retaining screws, replace with a new
LPA module and secure it with the screws.
Connect the RF cables to the LPA input and output connectors. Reconnect the wires to
the alarm board connector pins 9 and 10.
Reconnect the DC supply connector and turn the mains switch on.
Note:
Tighten SMA connectors using only a dedicated SMA torque spanner. If
SMA connectors are over-tightened, irreparable damage will occur. . Do not use
adjustable pliers to loosen/tighten SMA connectors.
Also take care not to drop or knock the module as this can damage (or misalign in the
case of tuned passive modules) sensitive internal components. Always store the modules
in an environmentally friendly location
7.3.6
Module Transportation:
To maintain the operation, performance and reliability of any module it must be stored and
transported correctly. Any module not installed in a whole system must be kept in an antistatic bag or container. These bags or containers are normally identified by being pink or
black, and are often marked with an ESD label. Any module sent back to AFL for
investigation/repair must be so protected. Please contact AFL’s quality department before
returning a module.
Denver Channelised CE
User/Maintenance Handbook
Handbook Nō.-50-063708HBKM
Issue No:-2
Date:-03/11/2003
Page:-50 of 51
APPENDIX A
INITIAL EQUIPMENT SET-UP CALCULATIONS
GENERAL INFORMATION
Client Name:
AFL Equip. Model Nō.
Site Name:
Date:
Model
ANTENNA SYSTEMS
Gain
Azimuth
Comments
Type
Loss
Comments
A - Service Antenna
B – Donor Antenna
Length
C – Service Feeder
D – Donor Feeder
INITIAL PARAMETERS
E – CE Output Power
F – Antenna Isolation
G – Input signal level from donor BTS
Operating Voltage
DOWNLINK CALCULATIONS
Parameter
Comments
Input signal level (G)
CE max. o/p power (E)
Gain setting
E-G
Isolation required
(Gain + 10dB)
Service antenna gain (A)
Service antenna feeder loss (C)
Effective radiated power (ERP)
E+A-C
Attenuator setting
CE gain-gain setting
dBm
dB
dBm
Value
dBm
dBm
dB
dB
dB
dB
dBm
dB
If the input signal level in the uplink path is known and steady, use the following calculation
table to determine the gain setting. If the CE features Automatic Gain Control the attenuator
should be set to zero and if not, then the attenuation setting for both uplink and downlink
should be similar.
UPLINK CALCULATIONS
Parameter
Comments
Input signal level
CE max. o/p power (E)
Gain setting
Required isolation
Donor antenna gain (B)
Donor antenna feeder loss (D)
Effective radiated power (ERP)
E+B-D
Attenuator setting
(CE gain-gain setting)
Value
dBm
dBm
dB
dB
dB
dB
dBm
dB
Denver Channelised CE
User/Maintenance Handbook
Handbook Nō.-50-063708HBKM
Issue No:-2
Date:-03/11/2003
Page:-51 of 51
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