OTE VS 2001 Release Note

VS 2001
UHF Vehicle Radio
Equipment
Technical Handbook
Document code: 779-0373/02
Revision 02

VS 2001
Technical Handbook
Page ii OTE Proprietary Information P/N: 779-0373/02
Revision 02
The information in this document is subject to change without notice and describes only the product defined in the
introduction of this documentation. This document is intended for the use of OTE’s customers only for the purposes
of the agreement under which the document is submitted, and no part of it may be reproduced or transmitted in any
form or means without the prior written permission of OTE. The document has been prepared to be used by
professional and properly trained personnel, and the customer assumes full responsibility when using it. OTE
welcomes customer comments as part of the process of continuous development and improvement of the
documentation.
The information or statements given in this document concerning the suitability, capacity, or performance of the
mentioned hardware or software products cannot be considered binding but shall be defined in the agreement made
between OTE and the customer. However, OTE has made all reasonable efforts to ensure that the instructions
contained in the document are adequate and free of material errors and omissions. OTE will, if necessary, explain
issues which may not be covered by the document.
OTE liability for any errors in the document is limited to the documentary correction of errors. OTE WILL NOT BE
RESPONSIBLE IN ANY EVENT FOR ERRORS IN THIS DOCUMENT OR FOR ANY DAMAGES, INCIDENTAL
OR CONSEQUENTIAL (INCLUDING MONETARY LOSSES), that might arise from the use of this document or the
information in it.
This document and the product it describes are considered protected by copyright according to the applicable laws.
Other product names mentioned in this document may be trademarks of their respective companies, and they are
mentioned for identification purposes only.
Copyright © OTE S.p.A. 2003. All rights reserved.
OTE S.p.A.
A Finmeccanica Company
Via E. Barsanti 8, 50127 - Firenze, Italy
Phone: [phone], Fax: [phone]

VS 2001
Technical Handbook
Safety rules
P/N: 779-0373/02
Revision 02
Marconi Proprietary information Page iii
Safety rules
Before using the equipment, read all the instructions contained in the
manual and with special care those relative to safety.
Lue käyttöohjeet ja erityisesti turvallisuuteen liittyvat ohjeet ennen
laitteen käyttöä.
Alvorens over te gaan tot het gebruik van het apparaat lees met
aandacht al de instructies van het handboek en let vooral op die die de
veiligheid betreffen.
Alvorens het apparaat in gebruik te nemen lees alle instructies van het
handboek en vooral de voorschriften betreffende de veiligheid.
Avant toute utilisation de l’appareil, lire toutes les indications
contenues dans le Manuel et avec une attention particulière celles
relatives à la sécurité.
Läs alla instruktioner i denna manual innan ni använder apparaten och
då särskilt noggrannt de anvisningar som gäller säkerheten.
Læs alle de vejledninger, der er indeholdt i manualen med særlig
opmærksomhed på de vejledninger, der vedrører sikkerheden, før
apparatet tages i brug.
Vor Gebrauch des Geräts alle in dieser Bedienungsanleitung
enthaltenen Anweisungen und Vorschriften lesen.
Den Sicherheitsbestimmungen ist dabei besondere Aufmerksamkeit
zu widmen.

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Technical Handbook
Safety rules
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Πριν χρησιµοποιήσετε τη συσκευή διαβάστε όλες τις οδηγίες που
περιέχονται στο εγχειρίδιο και δώστε ιδιαίτερη προσοχή στης
οδηγίες ασφαλείας.
Prima di utilizzare l’apparecchiatura leggere tutte le indicazioni
contenute nel manuale e con particolare attenzione quelle relative alla
sicurezza.
Antes de utilizar el equipo leer todas las instrucciones contenidas en
el manual, poniendo particular atención a las de seguridad.
Antes de utilizar o aparelho, leia todas as instruções que constam no
manual e com muita atenção as instruções relativas à segurança.

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Technical Handbook
Safety rules
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Revision 02
Marconi Proprietary information Page
v
This equipment is marked
According to the requirements specified in the R&TTE directive 1999/5/EC and the
Commission Decision 6th April 2000, the EC marking is accompanied by the Class
II equipment class identifier.
This equipment is intended for sell and use in Austria, Belgium, Denmark, Finland,
France, Germany, Greece, Ireland, Italy, Luxembourg, Portugal, Spain, Sweden,
The Netherlands, United Kingdom.
This equipment requires authorization or license for use.
This equipment operates on frequency bands non-harmonised in the EU.
This equipment can also be used worldwide where the equipment is approved for
use.

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Technical Handbook
Safety rules
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Technical Handbook
Safety rules
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Revision 02
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Hereby, OTE S.p.A., declares that this VS 2001 is in compliance with the essential
requirements and other relevant provisions of Directive 1999/5/EC.
OTE S.p.A. vakuuttaa täten että VS 2001 tyyppinen laite on direktiivin 1999/5/EY
oleellisten vaatimusten ja sitä koskevien direktiivin muiden ehtojen mukainen.
Hierbij verklaart OTE S.p.A. dat het toestel VS 2001 in overeenstemming is met de
essentiële eisen en de andere relevante bepalingen van richtlijn 1999/5/EG.
Bij deze verklaart OTE S.p.A. dat deze VS 2001 voldoet aan de essentiële eisen
en aan de overige relevante bepalingen van Richtlijn 1999/5/EC.
Par la présente, OTE S.p.A. déclare que ce VS 2001 est conforme aux exigences
essentielles et aux autres dispositions de la directive 1999/5/CE qui lui sont
applicables.
Härmed intygar OTE S.p.A. att denna VS 2001 står I överensstämmelse med de
väsentliga egenskapskrav och övriga relevanta bestämmelser som framgår av
direktiv 1999/5/EG.
Undertegnede OTE S.p.A. erklærer herved, at følgende udstyr VS 2001 overholder
de væsentlige krav og øvrige relevante krav i direktiv 1999/5/EF.
Hiermit erklärt OTE S.p.A. die Übereinstimmung des Gerätes VS 2001 mit den
grundlegenden Anforderungen und den anderen relevanten Festlegungen der
Richtlinie 1999/5/EG.
ΜΕ ΤΗΝ ΠΑΡΟΥΣΑ OTE S.p.A. ∆ΗΛΩΝΕΙ ΟΤΙ [type of equipment]
ΣΥΜΜΟΡΦΩΝΕΤΑΙ ΠΡΟΣ ΤΙΣ ΟΥΣΙΩ∆ΕΙΣ ΑΠΑΙΤΗΣΕΙΣ ΚΑΙ ΤΙΣ ΛΟΙΠΕΣ
ΣΧΕΤΙΚΕΣ ∆ΙΑΤΑΞΕΙΣ ΤΗΣ Ο∆ΗΓΙΑΣ 1999/5/ΕΚ.
Con la presente OTE S.p.A. dichiara che questo VS 2001 è conforme ai requisiti
essenziali ed alle altre disposizioni pertinenti stabilite dalla direttiva 1999/5/CE.
Por medio de la presente OTE S.p.A. declara que el VS 2001 cumple con los
requisitos esenciales y cualesquiera otras disposiciones aplicables o exigibles de
la Directiva 1999/5/CE.
OTE S.p.A. declara que este VS 2001 está conforme com os requisitos essenciais
e outras disposições da Directiva 1999/5/CE.
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Technical Handbook
Safety rules
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VS 2001
Technical Handbook
Summary
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Revision 02
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Summary
LIST OF ACRONYMS ............................................................................XVII
REFERENCE REGULATIONS .............................................................. XXVII
1. GENERAL INFORMATION .................................................................... 1
1.1 INTRODUCTION ...............................................................................................................1
1.2 TETRA NETWORK OVERVIEW .......................................................................................2
1.1.1 TETRA network equipment................................................................................5
1.1.1.1 Radio Base Station (BS) ....................................................................5
1.1.1.2 Switching and Control Node (SCN)....................................................5
1.1.1.3 Network Management System (NMS)................................................5
1.1.1.4 Control Room Server (CRS)...............................................................5
1.1.1.5 WDS, RDS and LDS ..........................................................................5
1.1.1.6 Terminals: fixed stations, vehicular and hand-held radios.................6
1.1.2 Reference standard ...........................................................................................6
1.3 GENERAL CHARACTERISTICS ......................................................................................7
1.1.1 E-WHERE/FPG1/A Module ...............................................................................8
1.4 NETWORK APPLICATION................................................................................................9
1.5 CHARACTERISTICS AND OPERATING FUNCTIONS..................................................10
1.6 SERVICES.......................................................................................................................12
1.7 PROGRAMMING THE EQUIPMENT ..............................................................................13
1.8 TECHNICAL CHARACTERISTICS .................................................................................14
1.9 MAIN COMPONENTS .....................................................................................................16
1.10 SAFETY RECOMMENDATIONS ....................................................................................17
1.11 ESD PRECAUTIONS ......................................................................................................19
2. TECHNICAL DESCRIPTION................................................................ 21
2.1 INTRODUCTION .............................................................................................................21
2.2 GENERAL DESCRIPTION..............................................................................................21
2.2.1 VS 2001 connectors overview .........................................................................21
2.3 RADIO UNIT FUNCTIONAL DESCRIPTION ..................................................................23
2.3.1 Base Band card ...............................................................................................25
2.3.1.1 External connector ...........................................................................27
2.3.1.2 Base Band card interfacing ..............................................................28
2.3.1.3 Level Translator................................................................................30
2.3.1.4 Power Unit........................................................................................30
2.3.1.5 I/F Audio ...........................................................................................30
2.3.1.6 Microcontroller..................................................................................31

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Technical Handbook
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2.3.1.7 DSP.................................................................................................. 32
2.3.1.8 ASIC Time Base and PLL................................................................ 33
2.3.2 R/T card........................................................................................................... 34
2.3.2.1 Functional description...................................................................... 36
1.1.1.2 R/T card interfacing ......................................................................... 39
1.1.3 P.A. card.......................................................................................................... 41
1.1.3.1 Functional description...................................................................... 42
1.1.3.2 P.A. card Interfacing ........................................................................ 43
1.4 FPG1/A FRONT PANEL ................................................................................................. 45
1.4.1.1 Control panel architecture................................................................ 45
1.4.1.2 External interfacing .......................................................................... 47
1.5 E-WHERE/FPG1A MODULE.......................................................................................... 48
1.5.1 System Architecture with E-WHERE/FPG1/A Interface ................................. 49
1.5.2 Mechanical description of E-WHERE/FPG1/A Module................................... 49
1.5.3 Pin out connector ............................................................................................ 51
3. INSTALLATION ..................................................................................53
3.1 INTRODUCTION............................................................................................................. 53
3.2 UNPACKING INSTRUCTIONS AND STORAGE, TRANSPORT REQUIREMENTS..... 53
3.2.1 Unpacking ....................................................................................................... 53
3.2.2 Storage............................................................................................................ 53
3.2.3 Repackaging and transport............................................................................. 53
3.3 INSTALLATION CONFIGURATION ............................................................................... 54
3.3.1 Vehicle configuration without E-WHERE / FPG1/A Module ........................... 54
3.3.2 Vehicle configuration with E-WHERE / FPG1/A Module ................................ 55
3.3.3 Motorcycle configuration ................................................................................. 56
3.4 INSTALLATION OF THE CONTROL PANEL................................................................. 57
3.4.1 3.6.1 Installation of the control panel in a car ................................................. 57
3.4.1.1 Installation in the car radio cavity..................................................... 58
3.4.1.2 Installation with adjustable bracket.................................................. 59
3.4.1.3 Installation with lite bracket.............................................................. 61
3.4.2 Installation of the control panel in a motorcycle.............................................. 62
3.5 RADIO UNIT INSTALLATION......................................................................................... 64
3.6 ANTENNA INSTALLATION ............................................................................................ 65
3.7 EXTERNAL CONNECTORS........................................................................................... 66
3.7.1 Antenna connector J18 ................................................................................... 66
3.7.2 Main rear connector (P01) .............................................................................. 66
1.1.3 Front panel connectors ................................................................................... 67
1.1.3.1 Front connectors.............................................................................. 67
1.1.1.2 Rear side connectors....................................................................... 69
1.8 ELECTRICAL CONNECTIONS ...................................................................................... 72
1.9 E-WHERE/INSTALLATION............................................................................................. 74
1.9.1 Test of E-WHERE/FPG1/A Module................................................................. 74
1.9.2 Cables ............................................................................................................. 77

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Technical Handbook
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4. SETTING UP ...................................................................................... 79
4.1 INTRODUCTION .............................................................................................................79
4.2 SETTINGS.......................................................................................................................80
4.2.1 HW/SW Configurations....................................................................................80
4.2.2 Connecting the equipment and the computer..................................................80
4.3 GENERAL DESCRIPTION..............................................................................................81
4.4 PRP PROGRAMMING PACKAGE SERVICE GUIDE ....................................................82
5. DISPOSAL.......................................................................................... 83
5.1 INTRODUCTION .............................................................................................................83
5.2 DISMANTLING AND DISPOSAL ....................................................................................84
5.3 PROVISIONS FOR RE-USE ...........................................................................................85
6. PREVENTIVE MAINTENANCE............................................................. 87
6.1 INTRODUCTION .............................................................................................................87
6.2 COLLECTION OF PREVENTIVE MAINTENANCE FORMS ..........................................88
7. TROUBLESHOOTING ......................................................................... 95
7.1 INTRODUCTION .............................................................................................................95
7.2 RADIO TESTS WITH THE RADIO TEST SET................................................................96
7.2.1 Tests with Radio Test Set................................................................................96
7.3 TROUBLESHOOTING FLOW DIAGRAMS...................................................................103
7.3.1 VS 2001: troubleshooting flow diagrams .......................................................103
7.4 FUNCTIONAL TEST......................................................................................................113
8. CORRECTIVE MAINTENANCE .......................................................... 123
8.1 INTRODUCTION ...........................................................................................................123
8.2 COLLECTION OF CORRECTIVE MAINTENANCE FORMS........................................123
APPENDIX A: ACCESSORIES .............................................................. 135
A.1 SUBJECTS TREATED ..................................................................................................135
A.2 MICROPHONE ..............................................................................................................135
A.3 LOUDSPEAKER............................................................................................................137
A.4 VS 2001 ANTENNA.......................................................................................................138
A.5 MAGNETIC HOOK HANDSET......................................................................................139
A.6 MECHANICAL HOOK HANDSET (MAM2000) .............................................................141
A.7 GPS ANTENNA .............................................................................................................143

VS 2001
Technical Handbook
List of figures
Page xii Marconi Proprietary information P/N: 779-0373/02
Revision 02
List of figures
Fig. 1.1: TETRA Network Architecture......................................................................................... 4
Fig. 1.2: VS 2001 equipment overview ........................................................................................ 7
Fig. 1.3: E-WHERE/FPG1/A Module ........................................................................................... 8
Fig. 2.1: VS 2001 configuration scheme.................................................................................... 22
Fig. 2.2: Equipment structure: Radio Unit and Front Panel modules ........................................ 23
Fig. 2.3: View from the Base Band card side............................................................................. 24
Fig. 2.4: View from the R/T and P.A. cards side........................................................................ 24
Fig. 2.5: VS 2001 architecture overview .................................................................................... 25
Fig. 2.6: Base Band functional block diagram ........................................................................... 26
Fig. 2.7: R/T card: arrangement of the sectors .......................................................................... 34
Fig. 2.8: RF section functional block diagram............................................................................ 35
Fig. 2.9: R/T card block diagram................................................................................................ 37
Fig. 2.10: Connections between R/T and P.A. cards................................................................... 39
Fig. 2.11: Connection between R/T card and Base Band card ................................................... 40
Fig. 2.12: J02 description ............................................................................................................. 40
Fig. 2.13: Block diagram of the P.A. card .................................................................................... 42
Fig. 2.14: P.A. card interfacing..................................................................................................... 43
Fig. 2.15: Mechanical structure of the Front Panel ...................................................................... 45
Fig. 2.16: Block diagram of the Front Panel................................................................................. 46
Fig. 2.17: Vehicular Setting-up with E-WHERE/FPG1 Module.................................................... 48
Fig. 2.18: Vehicle configuration with E-WHERE/FPG1/A Module ............................................... 49
Fig. 2.19: E-WHERE/FPG1/A Module ......................................................................................... 49
Fig. 2.20: Scheme of E-WHERE Module ..................................................................................... 50
Fig. 3.1: VS 2001 configuration (installed on a car) without E-WHERE / FPG1/A .................... 54
Fig. 3.2: VS 2001 configuration (installed on a car) with E-WHERE / FPG1/A Module ............ 55
Fig. 3.3: VS 2001 configuration (installed on a motorcycle) ...................................................... 56
Fig. 3.4: Control panel................................................................................................................ 57
Fig. 3.5: Control panel (rear side) ..............................................................................................58
Fig. 3.6: Bracket for control panel (installation in the car radio cavity) ...................................... 58
Fig. 3.7: Adjustable bracket........................................................................................................ 59
Fig. 3.8: Installation of the control panel in the adjustable bracket............................................ 60
Fig. 3.9: Installation of the Control Panel in the lite bracket....................................................... 61
Fig. 3.10: Remote control assembly ............................................................................................ 62
Fig. 3.11: Connection of remote control assembly ...................................................................... 63
Fig. 3.12: Bracket for the Radio Unit module installation............................................................. 64
Fig. 3.13: Rear view ..................................................................................................................... 66
Fig. 3.14: FPG1/A front connectors ............................................................................................. 68
Fig. 3.15: FPG1/A rear side connector ........................................................................................ 69
Fig. 3.16: Cabling between FPG1/A and accessories ................................................................. 72
Fig. 3.17: Cabling between FPG1/A and Radio Unit module....................................................... 72
Fig. 3.18: Cabling between PC and VS 2001 radio ..................................................................... 73

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Technical Handbook
List of figures
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Fig. 3.19: E-WHERE / FPG1/A Module ........................................................................................75
Fig. 3.20: E-WHERE Module and E-WHERE Interface with connector .......................................76
Fig. 7.1: Tetra Radio Test Set.....................................................................................................96
Fig. 7.2: SYSTEMS key ..............................................................................................................97
Fig. 7.3: System selection...........................................................................................................97
Fig. 7.4: Channel selection .........................................................................................................98
Fig. 7.5: DATA keys....................................................................................................................98
Fig. 7.6: Red “ENTER” keys .......................................................................................................99
Fig. 7.7: “Manual Test” and “Mode” ..........................................................................................100
Fig. 7.8: Adjustment knob .........................................................................................................102
Fig. 7.9: It‘s not possible to control the volume of the loudspeaker .........................................104
Fig. 7.10: The equipment doesn’t turn on...................................................................................105
Fig. 7.11: It’s not possible to exchange data with an external equipment (sheet 1 of 2) ...........106
Fig. 7.11: It’s not possible to exchange data with an external equipment (sheet 2 of 2) ...........107
Fig. 7.12: Failure in the selection of the standard operative functions and/or in the selection
of the digits from the keyboard ...................................................................................108
Fig. 7.13: The green and/or red LED are not lit when they should.............................................109
Fig. 7.14: The FPG1/A display is out of order or it shows wrong symbols.................................110
Fig. 7.15: The radio link, within the normal coverage area, is impossible, intermittent
or faint (sheet 1 of 2)...................................................................................................111
Fig. 7.15: The radio link, within the normal coverage area, is impossible, intermittent
or faint (sheet 2 of 2)...................................................................................................112
Fig. 7.16: Registration test..........................................................................................................114
Fig. 7.17: Call test.......................................................................................................................115
Fig. 7.18: RX test .......................................................................................................................116
Fig. 7.19: Test on quality of the received LF ..............................................................................117
Fig. 7.20: TX test (sheet 1 of 2) ..................................................................................................118
Fig. 7.20: TX test (sheet 2 of 2) ..................................................................................................119
Fig. 7.21: Test on quality of the transmitted LF (sheet 1 of 2)....................................................120
Fig. 7.21: Test on quality of the transmitted LF (sheet 2 of 2)....................................................121
Fig. A.1: Microphone MK1B (978-0314/01) ..............................................................................135
Fig. A.2: Microphone connector ................................................................................................136
Fig. A.3: Loudspeaker ...............................................................................................................137
Fig. A.4: Handset ......................................................................................................................139
Fig. A.5: Mechanical handset (MAM2000)................................................................................141

VS 2001
Technical Handbook
List of tables
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Revision 02
List of tables
Tab. 1.1: Acronyms related to Fig. 1.1 ............................................................................................. 3
Tab. 1.2: Technical characteristics................................................................................................. 14
Tab. 1.2: Technical characteristics (Cont’d)................................................................................... 15
Tab. 1.3: VS 2001 main components............................................................................................. 16
Tab. 2.1: J02 connector description ............................................................................................... 28
Tab. 2.1: J02 connector description (Cont’d) ................................................................................. 29
Tab. 2.2: J04 connector description ............................................................................................... 29
Tab. 2.3: Base Band frequencies ................................................................................................... 33
Tab. 2.4: R/T frequencies............................................................................................................... 38
Tab. 2.5: Pins function of J02 connector........................................................................................ 41
Tab. 2.6: Pin out connector J1 ....................................................................................................... 51
Tab. 2.7: Pin out connector J2 ....................................................................................................... 51
Tab. 2.8: Pin out connector J3 ....................................................................................................... 51
Tab. 3.1: P01 Rear connector pin functions................................................................................... 67
Tab. 3.2: Pin functions of J1........................................................................................................... 68
Tab. 3.3: Pin functions of J2........................................................................................................... 69
Tab. 3.4: DB37 connector pin out................................................................................................... 70
Tab. 3.5: PEI connector pin functions ............................................................................................71
Tab. 3.6: P04 connector pin functions............................................................................................71
Tab. 6.1: Summary of the preventive maintenance operations ..................................................... 88
Tab. 7.1: Parameters.................................................................................................................... 101
Tab. 7.2: Portable radio VS 2001 troubleshooting ....................................................................... 103
Tab. 7.3: Description of the symbols used in the troubleshooting flow diagrams........................ 104
Tab. 8.1: Summary of the corrective maintenance operations .................................................... 123
Tab. A.1: Microphone characteristics ........................................................................................... 135
Tab. A.2: Microphone connector pin out....................................................................................... 136
Tab. A.3: Loudspeaker characteristics ......................................................................................... 137
Tab. A.4: Handset characteristics................................................................................................. 140
Tab. A.5: MAM2000 connector pin out ......................................................................................... 142
Tab. A.6: GPS antenna characteristics ........................................................................................ 143

VS 2001
Technical Handbook
Issue record sheet
P/N: 779-0373/02
Revision 02
Marconi Proprietary information Page x
v
Issue record sheet
Title:
VS 2001 UHF Vehicle Radio Equipment - Technical Handbook
Document code
779-0373/02
Date Main variations applied Rev.
December 2002 Version 1: First Issue 01
April 2004 Version 2: General revision for OTE mark insertion; the Fig. 7.3 is changed;
added E-WHERE / FPG1/A module added 774-0017/03 and 774-0312/02;
added TETRA TEST SET and new MAM2000 handset; Reference regulations
updated
02

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Technical Handbook
Issue record sheet
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Revision 02
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VS 2001
Technical Handbook
List of acronyms
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Revision 02
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LIST OF ACRONYMS
TERM OR
ABBREVIATION
MEANING
4w-E&M 4 wires – Ear & Mouth
A/D Analogue to Digital
AACH Access Assignment Channel
AC Alternate Current
ACCH Associated Control Channel
ADU Alarm Display Unit
AGC Automatic Gain Control
AGP Accelerated Graphics Port
AMI Alternate Mark Inversion
AP Access Priority
API Application Programming Interface
ARFA Allied Radio Frequency Agency
ASM Assembler
ASSI Alias Short Subscriber Identity
ATA Advanced Technology Attachment
ATSI Alias TETRA Subscriber Identity
AUI Attachment Unit Interface
AWGN Additive White Gaussian Noise
B channel ISDN signalling channel
BB BaseBand
BBK Broadcast block
BCCH Broadcast Control Channel
BER Bit Error Rate
BLE Base Link Entity
BNC Bayonet Neill-Concelman
BNCH Broadcast Network Channel
BRI Basic Rate Interface
BS Base Station
BSCH Broadcast Synchronisation Channel
BU Bad Urban

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Technical Handbook
List of acronyms
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TERM OR
ABBREVIATION
MEANING
CB Control (uplink) Burst
CC Call Control
CCITT Comitè Consultatif International Télégraphique et Téléphonique
CCK Common Cipher Key
CDB Configuration Database containing updated information on the
status of TETRA specific network elements
CENELEC European Committee for Electrotechnical Standardisation
CEPT European Conference of Postal and Telecommunications
Administrations
CFM Cubic Feet per Minute
CLCH Common Linearisation Channel
CLNP Connectionless Network Protocol
CLR Central Location Register
CM Cluster Manager
CMCE Circuit Mode Control Entity
CO Central Office
Codec Coder/Decoder
CONP Connection Oriented Network Protocol
CoU Class of Usage – priority levels for scanning lists defined by MS
CPE Customer Premises Equipment
CPU Central Processor Unit
CTbus Computer Telephone bus
CTI Computer Telephony Integration
D channel ISDN traffic channel
D/A Digital to Analogue
DAC Dispatcher Audio Console
DC Dispatch Console (also Direct Current)
DCE Data Communication Equipment
DCK Derived Cipher Key
DGNA Dynamic Group Number Assignment
DID Direct Inward Dialling
DM Direct Mode
DMO Direct Mode Operation
DQPSK Differential Quadrature Phase Shift Keying
DRAM Dual Random Access Memory
DS0 Digital Signal level 0 – a 64K/bit digital channel

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Technical Handbook
List of acronyms
P/N: 779-0373/02
Revision 02
Marconi Proprietary information Page xix
TERM OR
ABBREVIATION
MEANING
DSP Digital Signal Processor
DTE Data Terminal Equipment
DTMF Dual Tone Multi Frequency
E&M Ear & Mouth
e.m.f. Electro-motive force
ECCH Extended Control Channel
EEPROM Electrically Erasable Programmable Read Only Memory
EIDE Enhanced Intelligent Drive Electronics
EIU Elementary Interface Unit
EMC Electro-Magnetic Compatibility
EMI Electro-Magnetic Interference
ENIA Enhanced Network Interface ASIC
ERM Event Reporting Module
ESD Electro-Static discharge
ESI Encrypted Short Identity
ETS European Telecommunication Standard
ETSI European Telecommunications Standards Institute
EX/CPU Communications and Control Card
EXS Expandable Switching System
F/W Firmware
FACCH Fast Associated Control Channel
FCC Federal Communication Commission
FEC Forward Error Correction
FFS Flash File System
FIFO First In First Out (buffer)
FIR Finite Impulse Response
FM Frequency Modulation
FPGA Field Programmable Gate Array
GAL Gate Array Logic
GB Guard Band
GCK Group Cipher Key
GND Ground
GPS Global Positioning System
GPU Gateway Processing Unit
GSM Global System for Mobile communications

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Technical Handbook
List of acronyms
Page xx Marconi Proprietary information P/N: 779-0373/02
Revision 02
TERM OR
ABBREVIATION
MEANING
GSSI Group Short Subscriber Identity
GTSI Group TETRA Subscriber Identity
GW Gateway
H/W Hardware
HD High Density
HDD Hard Disk Device
HDLC High Level Data Link Control
HLR Home Location Register
HPI Host Port Interface
HPR Hand-Portable Radio
HSCN Home Switching and Control Node
I/F Interface
I/O Input/Output
IC Integrated Circuit
IDE Intelligent Drive Electronics
IEC International Electrotechnical Committee
IEEE Institute of Electrical and Electronics Engineers
IPMI Intelligence Platform Management Interface
ISA Industry Standard Architecture
ISDN Integrated Services Digital Network
ISI Inter-System Interface
ISSI Individual Short Subscriber Identity
ITSI Individual TETRA Subscriber Identity
IUSP Internal Unified Signalling Protocol
KAuthentication Key
LA Location Address
LAN Local Area Network
LAPD Link Access Procedure for the D Channel
LB Linearisation Burst
LCD Liquid Crystal Display
LED Light Emitting Diode
LLC Logical Link Control
LLH LAPD Link Handler
LMN Land Mobile Network
LNA Low Noise Amplifier