Axell Wireless 60-0561SERIES UHF Signal Extender User Manual RECEIVER MULTICOUPLER

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Pasadena Blue Line
Metro Radio System
Maintenance Handbook
For
Canam Technology Inc.
AFL Works Order Nō.: Q109394
AFL product part Nō.:
60-056104
800MHz BDA
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-1 of 52
Table of Contents
AMENDMENT LIST RECORD SHEET ................................................................................................. 4
INTRODUCTION ....................................................................................................................................... 5
Scope...........................................................................................................................................................................5
Purpose.......................................................................................................................................................................5
Glossary of Terms .....................................................................................................................................................6
AFL Drawing Symbol Keys......................................................................................................................................7
1.
SAFETY CONSIDERATIONS ....................................................................................................... 8
1.1
1.2
1.3
1.4
2.
3.
Electric Shock Hazard .................................................................................................................................8
RF Radiation Hazard...................................................................................................................................8
Chemical Hazard..........................................................................................................................................9
Emergency Contact Numbers .....................................................................................................................9
OVERVIEW/SYSTEM DESCRIPTION ..................................................................................... 10
SPECIFICATIONS ........................................................................................................................ 11
3.1
800MHz Channelised BDA 60-056104 Parts Lists ..................................................................................11
3.2
Technical Specifications.............................................................................................................................13
3.2.5
800MHz 8 Channel Channelised BDA Technical Specification..............................................................13
3.3
Mechanical Specification ...........................................................................................................................14
3.3.1
800MHz BDA Wall Mount Case .............................................................................................................14
4.
SYSTEM DRAWINGS .................................................................................................................. 15
4.1
4.2
5.
Drg. Nō. 60-056194, 800MHz BDA Case Outline Drawing ....................................................................15
800MHz Channelised PBL BDA System Diagram..................................................................................16
SUB-UNIT MODULES .................................................................................................................. 17
5.1
5.1.1
5.1.2
5.2
5.2.1
5.2.2
5.3
5.3.1
5.3.2
5.4
5.4.1
5.4.2
5.5
5.5.1
5.5.2
5.5.3
5.5.4
5.5.5
5.5.6
5.5.7
5.5.8
5.5.9
5.6
5.6.1
5.6.2
5.6.3
5.6.4
5.6.5
5.6.6
Bandpass Filter (02-011601)......................................................................................................................17
Description ...............................................................................................................................................17
Technical Specification ............................................................................................................................17
2-Way Splitter/Combiner (05-002602) .....................................................................................................18
Description ...............................................................................................................................................18
Technical Specification ............................................................................................................................18
4-Way Splitter/Combiner (05-003302) .....................................................................................................19
Description ...............................................................................................................................................19
Technical Specification ............................................................................................................................19
¼Watt 0- -30dB Switched Attenuator (10-000701) .................................................................................19
General Application .................................................................................................................................19
Switched Attenuators ...............................................................................................................................19
Low Noise Amplifiers (11-005902 & 11-006702) .....................................................................................20
Description ...............................................................................................................................................20
Technical Specification (11-005902) .......................................................................................................20
Drg. Nō. 11-005902 LNA General Assembly Drawing...........................................................................21
Drg. Nō. 11-005970, LNA Circuit Diagram (RF)....................................................................................22
Drg. Nō. 11-005971, LNA Circuit Diagram (DC Wiring Layout) ..........................................................23
Technical Specification (11-006702) .......................................................................................................24
Drg. Nō. 11-006702, LNA General Assembly Drawing..........................................................................25
Drg. Nō. 11-006770, LNA Circuit Diagram (RF Components)...............................................................26
Drg. Nō. 11-006771, LNA DC Wiring Diagram .....................................................................................27
10Watt Power Amplifier (12-002105).......................................................................................................28
Description ...............................................................................................................................................28
Technical Specification ............................................................................................................................28
Drg. Nō. 12-002105, 10W PA Assembly Drawing..................................................................................29
Drg. Nō. 12-001275, 10W PA Circuit Diagram ......................................................................................30
Drg. Nō. 12-002175C12, PA Parts List(1)...............................................................................................31
Drg. Nō. 12-002175C2, PA Parts List(2).................................................................................................32
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-2 of 52
5.6.7
Drg. Nō. 80-008450, PA Alarm Wiring Details ......................................................................................33
5.7
3 Stage Alarm Board (12-002201).............................................................................................................34
5.7.1
Description ...............................................................................................................................................34
5.7.2
Technical Specification ............................................................................................................................35
5.7.3
Drg. Nō. 12-002201, 3 Stage Alarm Board Assembly Drawing & Parts List..........................................36
5.7.4
Drg. Nō. 12-002270, 3 Stage Alarm Board Circuit Diagram...................................................................37
5.7.5
Generic Wall Enclosure Alarm Wiring Sketch ........................................................................................38
5.8
DC/DC Converter, 24V in, 12V 8A out (13-003011) ...............................................................................39
5.8.1
Description ...............................................................................................................................................39
5.8.2
Technical Specification ............................................................................................................................39
5.8.3
Photo of Regulator PCB (regulator heatsink side) ...................................................................................39
5.9
Channel Control & Channel Selective Modules (17-002101 & 17-009127) ..........................................40
5.9.1
Channel Selective Module Description....................................................................................................40
5.9.2
Drg. Nō. 17-003080, Generic Channel Module Block Diagram..............................................................41
5.9.3
Channel Control Module Description ......................................................................................................42
5.9.4
Channel Controller Frequencies...............................................................................................................42
5.9.5
Channel Frequency Control Switch Table ...............................................................................................43
5.10
24V Single Relay Board (80-008902) ........................................................................................................43
5.10.1
Description ...........................................................................................................................................43
5.11
24V 400W Flat-Pack Power Supply (96-300011) ....................................................................................44
5.11.1
Description ...........................................................................................................................................44
5.11.2
Technical Specification ........................................................................................................................44
6.
6.1
6.2
6.3
6.4
6.5
7.
INSTALLATION............................................................................................................................ 45
Initial Installation Record .........................................................................................................................45
General........................................................................................................................................................45
Electrical Connections ...............................................................................................................................45
RF Connections ..........................................................................................................................................45
Commissioning ...........................................................................................................................................46
MAINTENANCE............................................................................................................................ 47
7.1
General Procedures....................................................................................................................................47
7.1.1
Fault Finding ............................................................................................................................................47
7.1.2
Downlink..................................................................................................................................................48
7.1.3
Uplink.......................................................................................................................................................48
7.1.4
Fault repair ...............................................................................................................................................48
7.1.5
Checking service ......................................................................................................................................49
7.1.6
Service Support ........................................................................................................................................49
7.2
Tools & Test Equipment............................................................................................................................49
7.3
Care of Modules .........................................................................................................................................50
7.3.1
General Comments ...................................................................................................................................50
7.3.2
Module Removal (LNA’s, general procedure): .......................................................................................50
7.3.3
Module Replacement (general): ...............................................................................................................50
7.3.4
Power Amplifiers .....................................................................................................................................50
7.3.5
Low Power Amplifier Replacement.........................................................................................................51
7.3.6
Module Transportation:............................................................................................................................51
APPENDIX A
INITIAL EQUIPMENT SET-UP CALCULATIONS............................................... 52
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-3 of 52
AMENDMENT LIST RECORD SHEET
Issue
Nō.
Date
09/04/2003
Incorporated
by
CMH
Page No.’s
Amended
Reason for new issue
1st Issue
Document Ref:-60-056100HBKM
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-4 of 52
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. This is a controlled release document and, as such,
becomes a part of Aerial Facilities’ Total Quality Management System. Alterations and
modification may therefore only be performed by Aerial Facilities Ltd.
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.
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-5 of 52
Glossary of Terms
Repeater or
Cell Enhancer
Band Selective Repeater
Channel Selective
Repeater
BTS
C/NR
Downlink (D.L.)
Uplink (U.L.)
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
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
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-6 of 52
AFL Drawing Symbol Keys
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-7 of 52
1.
SAFETY CONSIDERATIONS
1.1
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
“CAUTION: This equipment is approved for antennas mounted on fixed outdoor permanent
structures. A minimum separation distance of 2 metres must be maintained between the
radiating elements and any nearby persons. A maximum antenna gain of 21 dBi may be used.
Operating this equipment without regard to these restrictions will result in RF exposure levels
above the limits allowed by FCC rules.”
This equipment complies with part 90 of the FCC rules. Any changes or modifications not
expressly approved by the manufacturer could void the user’s authority to operate the
equipment.
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.
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.
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-8 of 52
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
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-9 of 52
2.
OVERVIEW/SYSTEM DESCRIPTION
The AFL 800MHz Off Air Amplifier for the Pasadena Blue line project is an 8 way
channelised RF amplifier. It’s application is as an air interface between the donor radio site
and the tunnel leaky feeder system. The unit is housed in an environmentally protected IP65
steel wall-mount case. Handles are provided for carrying the unit and the door is fitted with
locks. The unit interfaces with ‘N’ type female connectors for RF connections and heavy duty
connectors for routing of AC power supply input and alarm output wiring.
The unit is housed in an environmentally protected IP65 steel wall-mount case. Handles are
provided for carrying the unit and the door is fitted with locks. The unit interfaces with ‘N’
type female connectors for RF connections and heavy duty connectors for routing of AC
power supply input and alarm output wiring.
To provide adequate selectivity in the Downlink and Uplink paths, combline design
duplexers are used at the input and output ports. To provide the required gain to reach the
required signal levels, low-noise amplifiers (LNA’s) are used in each path, these being
followed by power amplifier modules to provide the required intermodulation performance.
Gain adjustment is available locally using switched attenuators.
Note that “Downlink” refers to the RF path from FO receiver to the leaky feeder port and that
“Uplink” refers to the RF path from the leaky feeder port to the FO transmitter.
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-10 of 52
3.
SPECIFICATIONS
3.1
800MHz Channelised BDA 60-056104 Parts Lists
02-011601
05-002602
05-003302
10-000701
11-005902
11-006702
12-002105
12-002201
12-002220
12-002826
13-003011
13-003020
17-000126
17-001522
17-002101
17-002103
17-003022
17-003023
17-003024
17-003025
17-003028
17-003029
17-009026
17-009127
17-009723
17-009725
80-008902
80-032320
80-032322
90-010021
90-010022
90-010026
90-010028
90-010029
90-010131
90-010135
91-500011
91-500015
91-500016
91-510010
900MHz 8POLE 7.5MHz B/W SMA
900MHz SPLITTER/COMBINER, 20W
4 WAY SPLITTER GSM 900MHz
1/4W0-30dB SWITCHED ATTENUATOR
900MHz LOW NOISE AMP WITH RELAY ASS
GA 800-1000MHz LNA 29dB (WITH RELAY)
900MHz 10W PA 24V 2.8A (ALARMS)
3 STAGE AMPLIFIER ALARM BOARD
3 STAGE ALARM PCB COVER
ALARM BOARD ACRYLIC LENS
DC/DC CONVERTER 24-12V 8A PCB SUB-ASS
DC-DC CONVTR 24-12V HEATSINK
CELL ENHANCER LABEL 6 DIGIT
BASE PLATE 560 x 345mm 17-001520&9020
CHANNEL CONTROL MODULE
26WAY RIBBON CABLE LEAD
MODULE PATTERNED LEAVE
SUBRACK SIDE PANEL
SUBRACK REAR BRACKET
BOTTOM MODULE GUIDE
MODULE SQUARE LEAVE
TOP MODULE GUIDE
C/E 820 x 620 x 250(3 HEATSINKS)2.0 CASE
CHAN MOD 810-860MHz 30KHz 8p TCXO
EQUIP. MTG PLATE No.4
EQUIP. MTG PLATE No.6
24V RELAY PCB ASSEMBLY
10W PA HEATSINK (NEEDS 17-000526)
10W PSU HEATSINK (NEEDS 17-000526)
RF CABLE SUPFLEX SMA R/A MALE 100mm
RF CABLE SUPFLEX SMA R/A MALE 200mm
RF CABLE HIFLEX SMA R/A MALE 150mm
RF CABLE HIFLEX SMA R/A MALE 350mm
RF CABLE HIFLEX SMA R/A MALE 450mm
RF CABLE SMA R/A-N PANEL JACK 200mm
RF CABLE SMA R/A-N PANEL JACK 500mm
PWR 3POLE PNL PLUG SEALED IP68
PWR CON CAP SEALED with INT. THREAD
PWR 6POLE PNL PLUG SEALED IP68
PWR 3POLE FREE SOC.SEALED IP68
16
16
16
16
16
16
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-11 of 52
91-510013
91-510014
91-600014
91-620002
91-640003
91-700017
92-280033
92-400017
93-540035
96-300011
96-500003
96-500005
96-700002
96-700005
96-900018
96-920011
96-920012
97-000002
97-300010
97-400010
97-600001
97-600002
97-900004
PWR CON CAP SEALED with Ext. THREAD
PWR 6POLE FREE SOC.SEALED IP68
'D' 9 WAY SOCKET S/B (NON FILTERED)
'D' 25 WAY SOCKET/IDC TERMS
MISC 26 WAY RIBBON CABLE SOCK.
ICD 15 WAY 0.1' CONNECTOR
Captive Screw
GASKET FOR N TYPE CONNECTOR
1K3 0.25W 1% RES MRS25 M:F
24 V 400 W FLATPACK PWR SUPPLY
AC FILTER 110V 5A
DC INPUT FILTERS
LED.GREEN 5mm SEALED IP66
LED.RED 5mm SEALED IP66
AC TRIP SWITCH (5 AMP M.C.B.)
PROXIMITY SWITCH
PROXIMITY SWITCH MAGNET
BLACK MODULE CAGE RUNNER
SUPPLY I/P COVERS
BLACK PLASTIC HANDLE 37311
SUBRACK FRONT HORIZ
SUBRACK M2.5 STD TAP
RUBBER FOOT FOR CELL ENHANCERS
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-12 of 52
3.2
3.2.5
Technical Specifications
800MHz 8 Channel Channelised BDA Technical Specification
Downlink
Frequency Range: 857.0-861.0MHz
Uplink
812.0-816.0MHz
Band Width: Downlink:
25kHz
Uplink:
25kHz
No. of Paths: 2
No. of RF Ports: 2
No. of Fibre Connections: N/A
RF Connector: N type female
RF Impedance: 50Ω
VSWR: Better than 1.5:1
Downlink Gain: 95 dB min
Uplink Gain: 95 dB min
Gain Adjustment: 0 to 30 in 2dB steps
Downlink PA: 10W Class A Linear
Downlink Power: 8 Carriers at +17dBm
Uplink PA: 10W Class A Linear
Uplink Power: 8 Carriers at +17dBm
Duplexer UP/DN Isolation: >80 dB
Passband Ripple: <±1.5 dB
Noise Figure: Uplink
<6 dB at maximum gain
Downlink <5 dB at maximum gain
In-Band Spurious: Better than –36dBm downlink
Better than –36dBm uplink
(measure with 30KHz BW with max gain setting)
MTBF: >50,000 hours
Supply Input Voltage: 110V AC
Alarms Fitted: Alarm: Volts free contacts (Amps, PSU,door)
Alarm indicator- Red LED
Power Indicator-Green LED
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-13 of 52
3.3
3.3.1
Mechanical Specification
800MHz BDA Wall Mount Case
Size:
height:
820 mm
width:
620 mm
depth:
250 mm
(excluding connectors, heatsinks, handles and feet)
Fixings:
4 holes on 700 mm (h) x 667 mm (w)
Weight:
50 kg (approx.)
Temperature Range: operational: -20°C to +50°C
storage:
-40°C to +70°C
Humidity:
10% to 95% non-condensing
Environmental Protection:
IP65 (with door closed and all ports terminated)
Finish:
Case:
RAL 7032
Heatsinks:
Black anodised
Handles:
Black (where fitted)
Supply Cable:
Unit supplied with 3-pin IP68 connector for
customer interface with AC input.
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-14 of 52
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
CHKD
Maintenance Handbook
Page:-15 of 52
APPD
GD
01/07/03
DATE
800MHz BDA (Pasadena Figuero Tunnel)
ALL DIMENSIONS ARE IN mm
UNLESS OTHERWISE STATED
PB
MNR
DRAWN
820 [2'-8.3"]
250 [9.9"]
909 [2'-11.8"]
NO DECIMAL PLACE ± 1mm
ONE DECIMAL PLACE ± 0.3mm
TWO DECIMAL PLACES ± 0.1mm
TOLERANCES
SCALE
A LA R M
1:8
M6 EARTH STUD
PSU
H eavy
C A U TI ON
115V AC INPUT
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.
MATERIAL: MILD STEEL
FINISH: PAINTED TO RAL 9017
SEMI-GLOSS TRAFFIC BLACK
WALL FIXINGS: M8 (5/16")
RF CONNECTORS: N TYPE FEMALE
ENVIRONMENTAL CLASS.: IP65
P r oduct r ef :
667 [2'-2.3"]
A er i al Faci l i t i es
Li mi t ed
CE -
B P A 800MH z
620 [2'-0.4"]
700 [2'-3.6"]
vol t age
D A N GE R
H i gh
Fax : 01494 777000
Fax : 01494 777002
700 [2'-3.6"]
LOCKABLE
DOOR
CATCH
Aerial Facilities Limited
England
ALARMS
1A
ISSUE
DESCRIPTION
PRODUCTION ISSUE
PASADENA BLUE LINE. LOCATION 2.
No
TO ANTENNA
CUSTOMER
DRAWING.No
60-056194
DATE
01/07/03
CONNECTION TO BDA
BDA 800MHz. 8 CHANNEL OUTLINE DRAWING
TITLE
BY
MNR
4.
SYSTEM DRAWINGS
4.1
Drg. Nō. 60-056194, 800MHz BDA Case Outline Drawing
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
30dB
12-002105
dB
20dB
20dB
20dB
LOCATION TWO
05-003302
813.7625MHz
20dB
814.4375MHz
20dB
815.4375MHz
20dB
813.2375MHz
20dB
812.9375MHz
20dB
814.7625MHz
T11
20dB
814.9375MHz
20dB
812.7625MHz
20dB
dB
20dB
30dB
812-815MHz
800MHz
-30dBm -49dBm
-78dBm
-29dBm
-79dBm
05-002602
857-860MHz
17dBm
11-005902
11-006702
30dB
05-003302
dB
12-002105
-11dBm
-10dBm
19dBm
11-005902
05-002602
-30dBm
-20dBm
-20dBm
05-002602
11-005902
20dB
858.7625MHz
20dB
859.4375MHz
20dB
860.4375MHz
20dB
858.2375MHz
20dB
857.9375MHz
05-003302
dB
05-002602
20dB
859.7625MHz
19dBm
-10dBm
-11dBm
-30dBm
60-056104
17dBm
20dB
812-815MHz
30dB
11-005902
11-006702
857-861MHz
-78dBm
-49dBm
-30dBm
-79dBm
-29dBm
859.9375MHz
20dB
857.7625MHz 05-003302
4.2
800MHz Channelised PBL BDA System Diagram
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
Page:-16 of 52
5.
SUB-UNIT MODULES
5.1
5.1.1
Bandpass Filter (02-011601)
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.
5.1.2
Technical Specification
PARAMETER
Response Type:
SPECIFICATION
Chebyshev
857-861MHz (Dlink)
Frequency Range:
812-816MHz (Ulink)
Bandwidth:
<7.5 MHz (tuned to requirements)
Number of Sections:
Insertion Loss:
1.2 dB
VSWR:
better than 1.2:1
Connectors:
SMA
Power Handling:
100W max
operation: -10°C to +55°C
Temperature range
storage:
-40°C to +70°C
Weight:
3 kg (typical)
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-17 of 52
5.2
5.2.1
2-Way Splitter/Combiner (05-002602)
Description
The Splitter/Combiner used is a device for accurately matching two or more RF signals to
single or multiple ports; most usually within a specified frequency band, 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.
5.2.2
Technical Specification
PARAMETER
Narrowband:
Frequency Range:
Broadband:
Narrowband:
Bandwidth:
Broadband:
Inputs:
Outputs:
Narrowband:
Isolation:
Broadband:
Narrowband:
Insertion Loss:
Broadband:
VSWR Input & Output:
Impedance:
Connectors:
Weight:
Power Rating:
SPECIFICATION
800-1000MHz
600-1300MHz
300 MHz
700 MHz
>20 dB
>18 dB
3.3 dB
3.5 dB
Better than 1.3:1
50 ς
SMA female
200gms
54 x 44 x 21mm (including
Size:
connectors)
Splitter: 20 Watts
Combiner: 0.5Watts
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-18 of 52
5.3
5.3.1
4-Way Splitter/Combiner (05-003302)
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. This splitter is used in conjunction with
the previously mentioned 05-002602 to split & combine the signal before and after the
channel selective modules (in both up & downlink paths).
5.3.2
Technical Specification
PARAMETER
Frequency range:
Bandwidth:
Rejection:
Insertion loss:
Connectors:
Weight:
operational
Temperature
range:
storage
5.4
5.4.1
SPECIFICATION
700-1000MHz
>200MHz
>14dB
6.5dB (typical)
SMA
<1.5kg
-10ΒC to +55ΒC
-40ΒC to +70ΒC
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.
5.4.2
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.
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-19 of 52
5.5
Low Noise Amplifiers (11-005902 & 11-006702)
5.5.1
Description
The Gallium-Arsenide low noise amplifiers used in the unit are double stage, solid-state low
noise amplifiers. Class A circuitry is used throughout the units to ensure excellent linearity
and extremely low noise over a very wide dynamic range. The 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 a failure, then the complete amplifier should be
replaced. This amplifier features its own in-built alarm system which gives a volt-free relay
contact type alarm that is easily integrated into the main alarm system.
5.5.2
Technical Specification (11-005902)
PARAMETER
Frequency Range:
Bandwidth:
Gain:
1dB Compression Point:
OIP3:
Input/Output Return Loss:
Noise Figure:
Power Consumption:
Supply Voltage:
Connectors:
operational:
Temperature Range:
storage:
Size:
Weight:
SPECIFICATION
800 – 960MHz
<170MHz
19.5dB (typical)
21dBm
33dBm
>20dB
1dB (typical)
190mA @ 24V DC
10-24V DC
SMA female
-10°C to +55°C
-40°C to +70°C
90 x 55 x 30.2mm
280gms (approximately)
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-20 of 52
Date:-21/10/2003
CHKD
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
Page:-21 of 52
APPD
IB
25/03/02
DATE
ALL DIMENSIONS ARE IN mm
UNLESS OTHERWISE STATED
AC
MNR
DRAWN
IN
REF.
FREQ.
GAIN
S/N
DATE
AFL
see note 2
0086
OUT
34
31
AFL
NO DECIMAL PLACE ± 1mm
ONE DECIMAL PLACE ± 0.3mm
TWO DECIMAL PLACES ± 0.1mm
TOLERANCES
SCALE
1.5:1
see note 2
IN 4 PLACES
see note 2
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.
Aerial Facilities
Limited
S E NS I TI V E
DE V ICE S
E LE C TR OS TA TI C
FOR H A N D LI N G
OB S E R V E P R E C A U TI ONS
ATTENTION
11-005902
800-1000MHz
20dB 12-24vDC
********
**/**/20**
35
LABEL DETAILS - SCALE 1:1
C4
CON1
VIN
REG3
17
R40
C6
R58
RL1
V OUT C5
R39
R55
ZD3
C13
IC2
C7
33
24
C14
OR
R41
C9
Tel : 01494 777000
Fax : 01494 777002
England
R47
R52
C10
D3
19
k R59
V R1
C15
Aerial Facilities Ltd
ITEMS 31,34 & 35,TO BE FITTED ON TEST
2. LIDS,ITEMS 2 & 3 AND LABELS,
1. SOLDER JOINTS TO BE MADE USING
22
21
IC3
Ae r ia l Fa cilitie s
L imite d
R 38
R 53
COMPONENTS TO BE ADDED TO 11-005911,ITEM 16,RF PCB SUB-ASSEMBLY
AFL
R1 4
R1 5
CPL2
R13
COMPONENTS TO BE ADDED TO 11-003912,ITEM 15,DC PCB SUB-ASSEMBLY
R10
R 54
J1
C 17 J2
C 16
R2
C 11
R1
R3
R4
C8
16
C19
J3
RE G1
26
R5
R6
J4
L5
C1
C2
C10
J5
C12
R48
No
AA
1A
20
RF PCB
IN 2 PLACES
DRG.No
24
25
32
ISSUE
DESCRIPTION
PRE-PRODUCTION ISSUE
11-005902
DATE
25/03/02
08/04/02
IN 2 PLACES
DC PCB
PRODUCTION ISSUE(ECN2539)
27
10
25
WITH RELAY ASSEMBLY DRAWING
CUSTOMER
TITLE
28
R51 R50 R49
15
900MHz LOW NOISE AMPLIFIER
30
27
23
R43 R44
R1 1
R1 2
L6
TR2
Issue No:-1
IC4
C4
L2
11-005925 ISS.1
H/book Number:-60-056100HBKM
R 42
L4
R 46
MNR
BY
MNR
5.5.3
Drg. Nō. 11-005902 LNA General Assembly Drawing
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
CHKD
Maintenance Handbook
Page:-22 of 52
APPD
IB
21/03/02
DATE
RF IN
800MHz BDA (Pasadena Figuero Tunnel)
ALL DIMENSIONS ARE IN mm
UNLESS OTHERWISE STATED
AC
MNR
DRAWN
CPL 1
1D1304-3
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.
51R
R9
L3
82nH
N.T.S
220pF
C8
L4
82nH
100pF
C4
220pF
C7
100pF
C3
C12
1.0pF
R12
10K
R8
150R
-ve2
C11
1.0pF
R11
10K
R7
150R
-ve1
L2
C6
10uF
L1
C5
10uF
TR2
FSU02LG
TR1
FSU02LG
+ve2
R3
22R
L6
12nH
L5
12nH
R1
22R
+ve1
Tel : 01494 777000
Fax : 01494 777002
Aerial Facilities Limited
England
CPL 2
1D1304-3
R13
ISSUE
DESCRIPTION
DRAWING.No
CIRCUIT DIAGRAM
11-005970
DATE
21/03/02
No
08/04/02
PRODUCTION ISSUE(ECN2539)
PRE-PRODUCTION ISSUE
AA
R15
SAT
RF OUT
1A
51R
R10
R14
SAT
0R0(NOMI)
SAT
900MHz LOW NOISE AMPLIFIER (RF)
CUSTOMER
TITLE
4.7pF
C10
R6
150R
100pF
C2
R4
22R
4.7pF
C9
R5
150R
100pF
C1
R2
22R
MNR
BY
MNR
5.5.4
Drg. Nō. 11-005970, LNA Circuit Diagram (RF)
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
CHKD
Maintenance Handbook
Page:-23 of 52
APPD
IB
26/03/02
DATE
800MHz BDA (Pasadena Figuero Tunnel)
ALL DIMENSIONS ARE IN mm
UNLESS OTHERWISE STATED
AC
MNR
DRAWN
RF
IN
-ve2
+ve2 (6.75v @ 64mA)
-ve1
+ve1 (6.75v @ 64mA)
DC INPUT
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.
* ONLY APPLIES TO 11-005902 AMPLIFIER
RF PCB
FOR CIRCUIT DIAGRAM
SEE 11-005970
J5 2
J5 1
J4 2
J4 1
DC OUTPUT
Tel : 01494 777000
Fax : 01494 777002
Aerial Facilities Limited
England
J5
J4
DC PCB
+8V
CUSTOMER
TITLE
DRAWING.No
SCHEMATIC DIAGRAM
11-005971
900MHz LOW NOISE AMPLIFIER
ISSUE
DESCRIPTION
DATE
26/03/02
No
08/04/02
PRE-PRODUCTION ISSUE
RF
OUT
OC GOOD/0v BAD
TTL ALARM/0v GOOD
TTL VOLTAGE SET
BY
MNR
MNR
RELAY CONTACT GOOD *
RELAY COMMON *
RELAY CONTACT BAD *
GROUND
10-24V DC I/P
PRODUCTION ISSUE(ECN2539)
9 WAY 'D'
PIN OUTS
CON1
AA
9 CON1
8 CON1
7 CON1
5 CON1
4 CON1
3 CON1
2 CON1
1A
FOR CIRCUIT DIAGRAM
SEE 11-003971
REG3
LM7808CT
5.5.5
Drg. Nō. 11-005971, LNA Circuit Diagram (DC Wiring Layout)
5.5.6
Technical Specification (11-006702)
PARAMETER
Frequency Range:
Bandwidth:
Gain:
1dB Compression Point:
OIP3:
Input/Output Return Loss:
Noise Figure:
Power Consumption:
Supply Voltage:
Connectors:
operational:
Temperature Range:
storage:
Size:
Weight:
SPECIFICATION
800 – 1000MHz
<200MHz
29dB (typical)
20dBm
33dBm
>18dB
1.3dB (typical)
180mA @ 24V DC
10-24V DC
SMA female
-10°C to +55°C
-40°C to +70°C
90 x 55 x 30.2mm
290gms (approximately)
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-24 of 52
DESCRIPTION
5V DPDT SMD G6H-2F LOW PROFILE
96-910009
35
Date:-21/10/2003
Select on test
0R0 0.1W 2% 0805 CHIP RESISTOR
Select on test
DESCRIPTION
OR
19
ITEM No.
QTY
R12
28
R11 on 11-006711
R10
CIRCUIT REF
RL1 on 11-003912
REG3 on 11-003912
R59 on 11-003912
R40 on 11-003912
CHKD
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
Page:-25 of 52
APPD
IB
25/03/02
DATE
ALL DIMENSIONS ARE IN mm
UNLESS OTHERWISE STATED
AC
DBS
DRAWN
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.
1.5:1
3. LABEL,ITEM 34,TO BE FITTED ON TEST.FOR LAYOUT SEE DRAWING 11-006790
2. LIDS,ITEMS 2 & 3 AND WARRANTY LABELS,ITEM 31,TO BE FITTED ON TEST
1. SOLDER JOINTS TO BE MADE USING
93-630079
DRG No.
LM7808CT 8V VOLTAGE REGULATOR
36
4.7KR 0.125W 2% RESISTOR CHIP
94-300018
12
0R0 0.5W 1% 2010 RESISTOR CHIP
93-630135
93-630049
R50/51 on 11-003912
93-630018
11
39R 0.125W 2% RESISTOR CHIP
93-630016
56R 0.125W 2% RESISTOR CHIP
33R 0.125W 2% RESISTOR CHIP
93-630015
R44 on 11-003912
CIRCUIT REF
R43 on 11-003912
J4/J5
QTY
ITEM No.
ICD 2 WAY 0.1" PITCH JUMPER HEADER
10
91-700072
DRG No.
COMPONENTS TO BE ADDED TO 11-003912,ITEM 15,DC PCB SUB-ASSEMBLY
C COMPONENTS TO BE ADDED TO 11-006711,ITEM 16,RF PCB SUB-ASSEMBLY
I/P
O/P
RL1
R40
R1
C9
Tel : 01494 777000
Fax : 01494 777002
England
10
C4
R43 R44
30
C6
C7
C11
I/P
No
ISSUE
DESCRIPTION
MINOR CHANGE
PROTOTYPE ISSUE
24
23
DRG.No
11-006702
RF PCB
DATE
19/2/02
26/3/02
IN 2 PLACES
27
see note 2
DC PCB
16
AB
O/P
32
AA
OUTPUT
CON2
AFL
31
25
IN 4 PLACES
IN 4 PLACES
see note 2
27
20
800-1000MHz LOW NOISE AMP. (RELAY)
R11
(RF AND DC) 29dB GAIN. GENERAL ASSY
CUSTOMER
TITLE
see note 2
C5
L3
15
11-006725
Issue B
see note 3
R51 R50
R4
L2
R5
+Ve2
+Ve1
34
R3
25
C2
26
C10
-Ve2
-Ve1
R59
L1
R6 R7
Aerial Facilities Ltd
22
AFL
CON1
33
24
21
REG3
17
J5 J4
R9
R8
TR2
Issue No:-1
R10
AFL
H/book Number:-60-056100HBKM
R12
DBS
BY
DBS
5.5.7
Drg. Nō. 11-006702, LNA General Assembly Drawing
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
CHKD
Maintenance Handbook
Page:-26 of 52
APPD
IB
18/2/02
DATE
800MHz BDA (Pasadena Figuero Tunnel)
ALL DIMENSIONS ARE IN mm
UNLESS OTHERWISE STATED
AC
DBS
DRAWN
RF INPUT
R2
470R
100pF
C3
R6
180R
L1
ATF-33143
TR1
82nH
R7
180R
NO DECIMAL PLACE ± 1mm
ONE DECIMAL PLACE ± 0.3mm
TWO DECIMAL PLACES ± 0.1mm
TOLERANCES
100pF
C2
SCALE
R3
10R
15pF
C4
10nF
100pF
+Ve2
+Ve1
C10
-Ve2
-Ve1
R5
1K2
100pF
C5
R8
18R
L2
Tel : 01494 777000
Fax : 01494 777002
82nH
Aerial Facilities Limited
England
R4
430R
CONNECTIONS TO DC BOARD
C9
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.
100pF
C1
R1
910R
10nF
C8
100pF
C11
TR2
CLY2
R9
22R
220pF
C7
R10
R11
R12
ISSUE
DESCRIPTION
DRAWING.No
11-006770
(RF) PCB CIRCUIT DIAGRAM
DATE
18/2/02
AA
No
11/07/02
PRODUCTION ISSUE(ECN2538)
PROTOTYPE ISSUE
1A
800-1000MHz LOW NOISE AMP. 29dB
CUSTOMER
TITLE
BY
DBS
MNR
RF OUTPUT
SELECT VALUES ON TEST
REFER TO CIRCUIT COMPONENT LIST FOR FURTHER INFORMATION
6n8H
L3
C6
1.8pF
5.5.8
Drg. Nō. 11-006770, LNA Circuit Diagram (RF Components)
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
CHKD
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
Page:-27 of 52
APPD
IB
19/2/02
DATE
ALL DIMENSIONS ARE IN mm
UNLESS OTHERWISE STATED
AC
DBS
DRAWN
RF
IN
NO DECIMAL PLACE ± 1mm
ONE DECIMAL PLACE ± 0.3mm
TWO DECIMAL PLACES ± 0.1mm
TOLERANCES
J5 2
-ve2
Tel : 01494 777000
Fax : 01494 777002
Aerial Facilities Limited
England
J5 1
J5
+ve2 (6.75v @ 70mA)
J4 1
DC OUTPUT
J4 2
J4
-ve1
SCALE
+ve1 (6.75v @ 45mA)
DC INPUT
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.
RF PCB
FOR CIRCUIT DIAGRAM
SEE 11-006770
DC PCB
+8V
ISSUE
DESCRIPTION
PROTOTYPE ISSUE
DRAWING.No
11-006771
(RF AND DC) SCHEMATIC DIAGRAM
CUSTOMER
RF
OUT
DATE
19/2/02
OC GOOD/0v BAD
TTL ALARM/0v GOOD
TTL VOLTAGE SET
BY
DBS
RELAY CONTACT GOOD
RELAY COMMON
RELAY CONTACT BAD
GROUND
10-24V DC I/P
9 WAY 'D'
PIN OUTS
CON1
* = ONLY APPLIES TO 11-006702
9 CON1
8 CON1
7 CON1
5 CON1
4 CON1
3 CON1
2 CON1
800-1000MHz LOW NOISE AMPLIFIER 29dB
TITLE
No
AA
FOR CIRCUIT DIAGRAM
SEE 11-003971
REG3
LM7808CT
5.5.9
Drg. Nō. 11-006771, LNA DC Wiring Diagram
5.6
10Watt Power Amplifier (12-002105)
5.6.1
Description
The power amplifiers fitted to this unit (up & downlink paths) are multi-stage, solid state
power amplifiers. Class A circuitry is employed throughout the device to ensure excellent
linearity over a wide dynamic frequency range. All the semi-conductor devices are very
conservatively rated to ensure low device junction temperatures and a long, trouble free
working lifetime.
The power amplifiers should require no maintenance over their operating life. Under no
circumstances should the cover be removed or the side adjustments disturbed unless it is
certain that the amplifier has failed; since it is critically aligned during manufacture and
any re-alignment will require extensive test equipment.
5.6.2
Technical Specification
PARAMETER
SPECIFICATION
Frequency range: 800 - 970MHz (tuned to spec.)
Bandwidth: 10 - 100MHz (typical, tuned to
spec.)
Maximum RF output: >10.0 Watt
Gain: 30dB
1dB compression point: +40dBm
3rd order intercept point: +50dBm
VSWR: better than 1.5:1
Connectors: SMA female
Supply: 2.8A @ 24V DC
operational: -10°C to +55°C
Temperature range:
storage: -40°C to +70°C
Weight: 1.5 Kg (case only)
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-28 of 52
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
19
22
26
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
Page:-29 of 52
PRODUCTION ISSUE
1A
ISSUE
DESCRIPTION
23/12/98
PRODUCTION ISSUE (CR0962)
1B
No
9/6/99
(CR0962)
DATE
2/7/93
12/4/00
CR1676
1C
3. ASSEMBLE ITEMS 3 & 5 TOGETHER USING A THIN FILM OF ITEM
2. REFER TO 12-002190 FOR LABELING INFORMATION.
1. COMPLETE ALL SOLDERING USING ITEM
NOTES:
(ITEM 14)
DBS
SEW
RS
DJL
CROP TABS AS SHOWN
15.00
16
25
APPD
14
C4
L2
C 13
SEE DETAIL
R1
28
TR1
20
FIT WITH CHAMFER
FACING THIS WAY: -->
C2
C3
+ +
C 12
C 11
R E G1
L3
R2
C9
C18
C 10
21
TR2
L4
C 15
17
C 14
R3
FIT WITH CHAMFER
FACING THIS WAY: -->
12
C16
NO DECIMAL PLACE ± 1mm
ONE DECIMAL PLACE ± 0.3mm
TWO DECIMAL PLACES ± 0.1mm
TOLERANCES
SCALE
1:1
RE G2
C17
C 23 C 22
L5
16
18
C25
C26
C21
C20
L6
Fax (0494)764838
Little Chalfont(0494)763636
Aerial Facilities Ltd
England
C 24
R4
16
16
21
17
(HEATSINK NOT SHOWN)
C19
Aerial Facilities Ltd
(HEATSINK NOT SHOWN)
PLAN VIEW WITH LID REMOVED
THIRD ANGLE PROJECTION
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 FACIL ITIES LTD.
IN 4 POSNS
L1
30/06/93
DATE
C1
C8
C5
C7
ALL DIMENSIONS ARE IN mm
UNLESS OTHERWISE STATED
CHKD
DBS
DRAWN
IN 2 POSNS
10
CONNECT AS SHOWN
IN 3 POSNS
C28
TR3
17
D1
K A
21
27
30
C29
23
18
23
SOLDER PIN 2 TO EARTH.
ROUTE CLEAR OF DIODE LEGS.
PIN 3 NOT USED
SOLDER PIN 1 TO TRACK
(HIGHLIGHTED) ROUTE CLEAR
OF PIN 2 WIRE & D1 "K"
DRG.No
ASSEMBLY WITH ALARMS.
12-002105
POWER AMPLIFIER,10W,900MHz,2.8A,24V,
CUSTOMER
TITLE
FIT WITH CHAMFER
FACING THIS WAY: -->
13
R E G3
10
SOLDER TO D1 "K"TRACK
ISS
1C
5.6.3
Drg. Nō. 12-002105, 10W PA Assembly Drawing
5.6.4
Drg. Nō. 12-001275, 10W PA Circuit Diagram
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-30 of 52
5.6.5
Drg. Nō. 12-002175C12, PA Parts List(1)
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-31 of 52
5.6.6
Drg. Nō. 12-002175C2, PA Parts List(2)
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-32 of 52
5.6.7
Drg. Nō. 80-008450, PA Alarm Wiring Details
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-33 of 52
5.7
5.7.1
3 Stage Alarm Board (12-002201)
Description
Amplifier Alarm Boards are fitted to monitor the bias conditions of AFL Class A
amplifiers which remain constant in normal operation. Any departure from normal bias
conditions is a result of device failure, excess temperature, over-driving or oscillation
(excessive power).
In normal operation, the Class A bias circuit of the amplifier develops a constant voltage
of 1.20V across the collector current setting resistor. The Amplifier Alarm Board is a
window comparator device, which is adjusted to sense a departure from this condition.
Several different alarm outputs are provided to simplify interfacing, (Relay Contact, Open
Collector, and TTL Logic Levels)
The basic version of the Alarm Board (12-002801) monitors a single amplifier stage. A
three-stage version (12-002201) is used on complex amplifiers where three separate
comparators have their outputs logically combined to a common output stage. Failure of
any one stage will activate the alarms.
Note that the alarm board has a green Light Emitting Diode located near to the centre of
the printed circuit board, which is illuminated on ‘Good’, and extinguished on ‘Alarm’. It
is therefore a simple matter to identify an active module failure, by searching for an
Alarm Board which has its green LED extinguished. A simple test of the alarm board is
possible by shorting across the monitor inputs, pins 1 and 2, 3 and 4 or across pins 5 and
6. This last monitor input is inactive if the board has been converted to a two way alarm
board. (Refer to relevant amplifier alarm wiring diagram.)
1)
2)
3)
Volt-free change over relay contacts.
Open collector NPN transistor pulls low on alarm.
TTL driver.
The use of precision voltage sources and resistors has eliminated the need for initial
adjustment or calibration, and the board will function correctly with a wide variation in
power supply voltage (8 to 30 volts, nominal supply is 12 or 24Volts).
There are two selectable link options on the three-way board:
LINK1 - Removed to convert to two-way alarm board.
LINK2 - Removed to isolate 0V from chassis earth.
The one way alarm board only has the 0V isolation link (LINK2) fitted.
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-34 of 52
5.7.2
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: 15-way 0.1" pitch
operational:
-10°C to +55°C
Temperature range:
storage:
-30°C to +70°C
74 x 56mm (3 stage)
PCB Size:
54 x 56mm (1 stage)
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-35 of 52
5.7.3
Drg. Nō. 12-002201, 3 Stage Alarm Board Assembly Drawing & Parts List
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-36 of 52
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Maintenance Handbook
Page:-37 of 52
D1
1.23v
S R12D
C1
1uF
R2
120R
R1
1K 8
I C3
IC2
IC1 , IC2 & IC3 = LM324A M
A LL DIODE S = LL4148 UNLE S S MA RK E D OTHE RWIS E
R4
3K 6
R3
120R
HI
R6
100K
CON N
R5
100K
CON N
MONITOR 1
INP UT
R7
100K
LOW
IC3
11
R8
100K
C2
100n
R11
1K
V CC
+7. 5v
0v
10
I C3
R12
13
12
270K
R9
1K
+7. 5v
IC3
270K
R10
14
800MHz BDA (Pasadena Figuero Tunnel)
No
HI
R13
100K
IS S UE
D E S C R I P TI ON
CR0508
P RODUCTION I S S UE
P RODUCTION I S S UE
2A
4K 7
R42
D3
D2
C7
1u
R14
100K
MONITOR 2
I NP UT
LOW
R15
100K
D A TE
14/1/94
11/ 9/ 93
29/8/00
CON N
CON N
I C2
BY
MRB
MRB
MNR
RB
I C1
RB
11/ 8/ 93
APPD
D A TE
C3
100n
10
A LL D I ME N S I ON S A R E I N mm
U N LE S S OTH E R WI S E S TA TE D
CHK D
MRB
D R A WN
11
100K
R16
10
10
R20
IC2
270K
IC2
270K
13
12
R18
4K 7
R29
V CC
+7.5v
14
12
R30
2K 2
D5
D4
11
N O D E C I MA L P LA C E ± 1mm
ON E D E C I MA L P LA C E ± 0. 3mm
TWO D E C I MA L P LA C E S ± 0. 1mm
TOLE R A N C E S
B Y A E R I A L FA C I LI TI E S LTD .
12
S C A LE
N.T.S
TH I S I S A P R OP R I E TA R Y D E S I GN OF A E R I A L FA C I LI TI E S LTD .
R E P R OD U C TI ON OR U S E OF TH I S D E S I GN B Y OTH E R S I S
P E R MI S S I B LE ON LY I F E X P R E S S LY A U TH OR I S E D I N WR I TI N G
R19
1K
R17
1K
11
R21
100K
HI
13
RL2/ 2
NOT US E D
B CW71
R22
100K
MONI TOR 3
INP UT
TR1
13
CON N
CON N
R23
100K
RE L
RL1
D8
+7.5v
I C1
LE D1
14
Tel : 01494 777000
Fax : 01494 777002
Aerial Facilities Limited
England
LOW
14
11
15
C8
1. 0
R27
1K
RL1/2
B CW71
TR2
R25
1K
0v
R36
3K
V CC
10
13
12
R26
IC1
270K
R34
4K 7
R33
10K
IC1
270K
R28
TR4
B CW71
R38
1K
R37
2K 4
16
0v
1K
R35
CONN
CONN
CONN
B CW71
TR3
OP A MP
10
14
TR4
D7
D6
R40
LK 2
D9
3v3
16
D R A WI N G N o
CIRCUIT DIAGRAM
15
0V
CONN
A LA RM 0v
14
CONN
O/ C A LA RM
13
CONN
+5v TTL IN
12
CONN
12-002270
17
R41
22K
TTL A LA RM
11
CONN
A LA RM
CONTA CTS
2K 2
FZT751
B CW71
R39
560R
TR6
17
3 STAGE AMPLIFIER ALARM BOARD
C U S TOME R
TI TLE
R32
4K 7
R31
10K
R24
100K
C4
100n
15
LK 1
18
C6
100n
+8v TO +30v
7 CONN
18
5.7.4
Drg. Nō. 12-002270, 3 Stage Alarm Board Circuit Diagram
5.7.5
Generic Wall Enclosure Alarm Wiring Sketch
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-38 of 52
5.8
5.8.1
DC/DC Converter, 24V in, 12V 8A out (13-003011)
Description
The DC/DC converter fitted is an AFL assembled, high power PCB unit with an 8 amp @
12V output capability. The circuit is basically an O.E.M semiconductor regulator (one side
of which has a heatsink mounting plate, that is usually bolted to the casing/back panel of a
Cell Enhancer) and smoothing components built onto a printed circuit board with screw
block terminations.
Note: no circuit diagram of the O.E.M. regulator is available. This unit should not be
repaired, only replaced.
5.8.2
Technical Specification
PARAMETER
Input Voltage Range:
Output Voltage:
Max. Current Load:
Temperature
operation:
Range:
storage:
Size(PCB):
Weight (Loaded PCB):
5.8.3
SPECIFICATION
18-28V DC
12V±0.5V
8.0Amps
-10°C to +55°C
-30°C to +70°C
190 x 63mm
291gm
Photo of Regulator PCB (regulator heatsink side)
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-39 of 52
5.9
5.9.1
Channel Control & Channel Selective Modules (17-002101 & 17-009127)
Channel Selective Module 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 down-converted 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.
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-40 of 52
5.9.2
Drg. Nō. 17-003080, Generic Channel Module Block Diagram
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-41 of 52
5.9.3
Channel Control Module Description
The control module consists of a bank of four, in-line data switches each of which control
one channel module frequency setting. One controller unit can therefore control four
channel modules. The following list shows the frequencies available for each switch
setting.
5.9.4
Channel Controller Frequencies
IDC PIN
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
25-way Connector
13
25
12
24
11
23
10
22
21
20
19
18
17
16
15
14
---
Function
Freq. bit 1 (12.5kHz)
Freq. bit 2 (25kHz)
Freq. bit 3 (50kHz)
Freq. bit 4 (100kHz)
Freq. bit 5 (200kHz)
Freq. bit 6 (400kHz)
Freq. bit 7 (800kHz)
Freq. bit 8 (1.6MHz)
Freq. bit 9 (3.2MHz)
Freq. bit 10 (6.4MHz)
Freq. bit 11 (12.8MHz)
Freq. bit 12 (25.6MHz)
Freq. bit 13 (51.2MHz)
Freq. bit 14 (102.4MHz)
Freq. bit 15 (204.8MHz)
Freq. bit 16 (409.6MHz)
Module alarm
Gain bit 1
Gain bit 2
Gain bit 3
Gain bit 4
+5V
0V
Switched 12V
0V
---
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-42 of 52
5.9.5
Channel Frequency Control Switch Table
Downlink
Frequencies
(MHz)
857.7625
859.9375
859.7625
857.9375
858.2375
860.4375
859.4375
858.7625
5.10
DIP Switch Setting
Uplink
Frequencies
(MHz)
812.7625
814.9375
814.7625
812.9375
8132375
815.4375
814.4375
813.7625
1,2,3,4,6,8,10,16
2,3,9,10,16
1,2,3,4,5,6,7,810,16
2,3,5,6,8,10,16
2,7,8,10,16
2,4,5,9,10,16
2,5,6,7,8,10,16
1,2,3,5,78,10,16
DIP Switch Setting
2,3,5,7,10,16
1,3,4,6,8,10,16
2,3,6,8,10,16
1,3,4,5,7,10,16
1,4,6,7,10,16
1,7,8,10,16
1,4,5,8,10,16
2,3,4,5,6,7,10,16
24V Single Relay Board (80-008902)
5.10.1 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.
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-43 of 52
5.11
24V 400W Flat-Pack Power Supply (96-300011)
5.11.1 Description
The power supply unit is a switched-mode type capable of supplying 24V DC at 16.0Amps
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.
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. No drawings of the PSU are available.
5.11.2 Technical Specification
AC Input Supply:
Voltage: 110 or 220V nominal - 90 to 132 or 180 to
264V (single phase, absolute limits)
Frequency: 47 to 63Hz
DC Output Supply:
Voltage: 24V DC (nominal), 22 to 26V
(absolute limits)
Current: 16.0A
Temperature operational: -10ΒC to +55ΒC
range:
storage:
-40ΒC to +70ΒC
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-44 of 52
6.
INSTALLATION
6.1
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.
6.2
General
The size and weight of the wall unit means that it represent a significant health hazard unless
it is mechanically installed in the correct manner. In the interests of safety this should be
done before any electrical or RF connections are made.
It is important in determining the location of the wall units that space is allowed for access
to the front and underneath of the equipment. To enable maintenance to be carried out, the
door must be able to fully open. The location must be served with a duct to allow the entry
of cables into the unit.
6.3
Electrical Connections
The mains power supply and the alarms are connected through an IP65 connector which
should need no further attention once connected. It is recommended that the AC power
connection is approved by a qualified electrician, who must satisfy himself that the supply
will be the correct voltage and of sufficient capacity.
All electrical and RF connection should be completed and checked prior to power being
applied for the first time.
6.4
RF Connections
All RF connections are made to the cable termination, located on the right-hand side of the
wall enclosure. Care must be taken to ensure that the correct connections are made with
particular attention made to the base station TX/RX ports. In the event that the base
transmitter is connected to the RX output of the unit, damage to the equipment may be done
if the base station transmitter is then keyed. If the environment where the equipment is
installed is deemed to be ‘wet’ i.e. water seepage through roofs or walls, then suitable
methods to seal the RF N type connectors should be used, for example self amalgamating
sealant tape.
Ensure that connections are kept clean and are fully tightened.
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-45 of 52
6.5
Commissioning
Once all connections are made the equipment is ready for commissioning.
To commission the system the test equipment detailed in section 7.2 will be required.
Using the system diagrams and the end-to-end test specification, the equipment should be
tested to ensure correct operation. Typical RF levels that are not listed in the end-to-end
specification, such as input levels are detailed in the whole system diagram in section 4.
On initial power up the system alarm indicators on the door of the equipment should be
checked. A red LED illuminated indicates a fault and that particular module must be
investigated before proceeding with the commissioning. A green LED illuminates, to
indicate that the power supply is connected and valid.
In the event that any part of the system does not function correctly as expected, check all
connections to ensure that they are to the correct port, that the interconnecting cables are not
faulty and that they are tightened. The majority of commissioning difficulties arise from
problems with the interconnecting cables and connectors.
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-46 of 52
7.
MAINTENANCE
7.1
7.1.1
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 walkie-talkie, mobile telephone 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 (optional) 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 digital RS232 Coverage Enhancement
Management System, if fitted), or locally with the front door LED’s. The green LED on the
front door should be illuminated, while the red alarm indicator should be off.
If an Alarm is on, then that individual module must be removed and tested against the
original test specification.
The individual amplifier units have a green LED showing through a hole in their piggy-back
alarm board (or directly through a hole in the amplifier lid), 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 and amplifier specification 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 logical manner to confirm correct operation.
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-47 of 52
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, tuned cavities
or 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. If spare parts need to be ordered from AFL, be sure to quote the serial number of the
Cell Enhancer/Repeater and the serial number [and frequencies] of the module(s) to be
replaced.
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-48 of 52
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.
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-49 of 52
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 rules 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.
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-50 of 52
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.
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-51 of 52
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
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-52 of 52

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