If you do not understand the contents of this ma nu al
DO NOT OPERATE THIS EQUIPMENT.
Also, translation into any EC official language of this manual can be made
available, at your cost.
SVENSKA
LÄS DETTA FÖRST!
Om Ni inte förstår informationen i denna handbok
ARBETA DÅ INTE MED DENNA UTRUSTNING.
En översättning till detta språk av denna handbok kan också anskaffas, på
Er bekostnad.
PORTUGUÊS
LEIA O TEXTO ABAIXO ANTES DE MAIS NADA!
Se não compreende o texto deste manual
NÃO UTILIZE O EQUIPAMENTO.
O utilizador poderá também obter uma tradução do manual para o
português à própria custa.
FRANÇAIS
AVANT TOUT, LISEZ CE QUI SUIT!
Si vous ne comprenez pas les instructions contenues dans ce manuel
NE FAITES PAS FONCTIONNER CET APPAREIL.
En outre, nous pouvons vous proposer, à vos frais, une version française
de ce manuel.
ITALIANO
LEGGERE QUEST O AVVISO PER PRIMO!
Se non si capisce il contenuto del presente manuale
NON UTILIZZARE L’APPARECCHIATURA.
È anche disponibile la versione italiana di questo manuale, ma il costo è a
carico dell’utente.
NEDERLANDS
LEES DIT EERST!
Als u de inhoud van deze handleiding niet begrijpt
STEL DEZE APPARATUUR DAN NIET IN WERKING.
U kunt tevens, op eigen kosten, een vertaling van deze handleiding
krijgen.
SUOMI
LUE ENNEN KÄYTTÖÄ!
Jos et ymmärrä käsikirjan sisältöä
ÄLÄ KÄYTÄ LAITETTA.
Käsikirja voidaan myös suomentaa asiakkaan kustannuksella.
DANSK
LÆS DETTE FØRST!
MEDMINDRE DE TIL FULDE FORSTÅR INDHOLDET AF DENNE
Vi kan også for Deres regning levere en dansk oversættelse af denne
Udstyret må ikke betjenes
HÅNDBOG.
håndbog.
DEUTSCH
LESEN SIE ZUERST DIESEN HINWEIS!
Sollte Ihnen der Inhalf dieses Handbuches nicht klar verständlich sein,
dann
BEDIENEN SIE DIESE GERÄTE NICHT!
Eine Übersetzung des Handbuches in diese Sprache ist gegen
Berechnung lieferbar.
ESPAÑOL
LEA ESTE AVISO PRIMERO!
Si no entiende el contenido de este manual
NO OPERE ESTE EQUIPO.
Podemos asimismo suministrarle una traducción de este manual al
(idioma) previo pago de una cantidad adicional que deberá abonar usted
mismo.
This document and the information c ontained in it is the property o
TANDBERG Television Ltd and may be the subject of patents
pending and granted. It must not be used fo r commercial purposes
nor copied, disclosed, reproduced, stored in a retrieval system or
transmitted in any form or by any mea ns (electronic, mechanical,
photocopying, recording or otherwise), wheth er in whole or in part,
without TANDBERG Television’s prior written agreement.
Ó 2002 TANDBERG Television Ltd. All rights reserved.
ΕΛΛΗΝΙΚΑ
ÄΙΑΒΑΣΤΕ ΠΡÙΤΑ ΑΥΤΟ!
Αν δεν καταλÜβετε το περιεχüìενο αυτοý του βοηθÞìατοò/εγχειριδßου
ΜΗΝ ΛΕΙΤΟΥΡΓΗΣΕΤΕ ΑΥΤΟΝ ΤΟΝ ΕΞΟΠΛΙΣΜΟ.
Επßσηò, αυτü το εγχειρßδιο εßναι διαθÝσιìο σε ìετÜφραση
σε αυτÞ τη γλþσσα και ìπορεßτε να το αγορÜσετε.
Issue 1 first published in 2002 by:
ANDBERG TELEVISION LTD
T
REGISTERED ADDRESS:
NIT 2 STRATEGIC PARK, COMINES WAY,
U
EDGE END, SOUTHAMPTON,
H
AMPSHIRE,
H
SO30 4DA
NITED KINGDOM
U
Registered Company Number 03695535
Page iiInstruction Manual: TT1260 Standard Definition Professional Receiver/Decoder
ST.TM.E10100.1
Page 3
List of Contents
Chapter 1: Introduction
This chapter identifies the equipment versions covered b y thi s m a nual;
describes the purpose of the equipment i n a typi cal system; p r ov ides a
summary of its main features; identifies the controls, indicators and
connectors in a guided tour of the front and rear panels; and lists the
available options.
Chapter 2: Installing the Equipment
This chapter provides a guide to the suitability of an installation; gives
detailed procedures for the preparation, installation and configuration of
the equipment including important safety information; provides pin-out
details of the external connectors; and details the power-up/-down
procedures.
Chapter 3: Operating the Equipment Locally
This chapter provides a guide to using the Front Panel LCD interface and
details the setting-up, configuration and operating procedures.
Preliminary Pages
Chapter 4: Alarms
This chapter provides a guide to configuring the alarm interface.
Chapter 5: Options
This chapter describes the available hardware and software options for the
TT1260.
Chapter 6: Preventive Maintenance and Fault-finding
This chapter details routine maintenance tasks to be performed; provides
general servicing advice, and information regarding warranty and
maintenance; lists the error messages that may occur, and any
appropriate Operator action to be taken; provides general fault-finding
information for other types of problem which may be encountered.
Annex A: Glossary
Annex B: Technical Specification
Annex C: Menus
Annex D: Using the TT1260 with the TANDBERG Director
System
Annex E: Language Abbreviations
Annex F: Factory Defaults
Annex G: Quick Reference Guide
Instruction Manual: TT1260 Standard Definition Professional Receiver/DecoderPage iii
ST.TM.E10100.1
Page 4
Preliminary Pages
Index
Forms
Service/Repair Order Form
Page ivInstruction Manual: TT1260 Standard Definition Professional Receiver/Decoder
ST.TM.E10100.1
Page 5
About this Manual
This manual provides instructions and information for the installation and
operation of the TT1260 1U digital integrated Receiver/Decoder (IRD). It
should be kept in a safe place for reference during the life of the
equipment. Further copies of this manual can be ordered from the address
shown on page vii. If passing the equipment to a third party, pass on the
relevant documentation also.
Issues of this Manual
Issues of this manual are listed below:
Preliminary Pages
IssueDate
1March 20022.1Initial release.
The following associated manual is also available:
· ST.QR.E10100: Quick Reference Guide
Acknowledgements
General
All best endeavours have been made to acknowledge registered
trademarks and trademarks used throughout this manual. Any notified
omissions will be rectified in the next issue of this manual.
Some trademarks may be registered in some countries but not in others.
In general, the situation in the UK will prevail throughout TANDBERG
Television Limited manuals.
Registered trademarks and trademarks used are acknowledged below and
marked with their respective symbols. However, they are not marked
within the text of this manual.
Software Version
Comments
Trademarks
Alteia™ is a trademark of TANDBERG Television Limited.
Registered Trademarks
VideoGuard® is a registered trademark of NDS Limited.
Dolby Digital
Licensing Corporation
Instruction Manual: TT1260 Standard Definition Professional Receiver/DecoderPage v
ST.TM.E10100.1
®
and AC-3® are registered trademarks of Dolby Laboratories
.
Page 6
Preliminary Pages
Warnings, Cautions and Notes
Heed Warnings
All warnings on the product and in the operating instructions should be
adhered to. The manufacturer can not be held responsible for injuries or
damage where warnings and cautions have been ignored or taken lightly.
Read Instructions
All the safety and operating instructions should be read before this product
is operated.
Follow Instructions
All operating and use instructions should be followed.
Retain Instructions
The safety and operating instructions should be retained for future
reference.
WARNINGS GIVE INFORMATION WHICH, IF STRICTLY OBSERVED, WILL PREVENT PERSONAL
INJURY OR DEATH, OR DAMAGE TO PERSONAL PROPERTY OR THE ENVIRONMENT. THEY
ARE BOXED AND SHADED FOR EMPHASIS, AS IN THIS EXAMPLE, AND ARE PLACED
IMMEDIATELY PRECEDING THE POINT AT WHICH THE READER REQUIRES THEM.
Cautions give information that if strictly followed, will prevent damage to equipment or other goods. They
are boxed for emphasis, as in this example, and are placed immediately preceding the point at which the
NOTES...
Notes provide supplementary information. They are highlighted for emphasis, as in this example, and
are placed immediately after the relevant text.
EMC Compliance
This equipment is certified to the EMC requirements detailed in Annex B,
Technical Specification. To maintain this certification, only use the leads
supplied or if in doubt contact TANDBERG Customer Services.
WARNINGS...
CAUTIONS...
reader requires them.
Page viInstruction Manual: TT1260 Standard Definition Professional Receiver/Decoder
ST.TM.E10100.1
Page 7
Contact Information
TANDBERG Television Customer Services
Support Services
Our primary objective is to provide first class customer care that is tailored
to your specific business and operational requirements. All levels are
supported by one or more service performance reviews to ensure the
perfect partnership between TANDBERG Television and your business.
Levels of Support
We offer a number of support service levels so you can choose the one
most appropriate to your business requirements.
· For the initial 12 months, Bronze Level Support is provided free on this
product. An extended time period can be purchased for this level.
· Silver Level Support extends the coverage to include on-site support,
preventive maintenance and discount on predesigned training.
· The Gold Level Support gives an enhanced support package. It builds
on the Silver Level by including advanced repair exchange, an account
focused engineer, version migration support and further discount on
predesigned training.
Preliminary Pages
Where to Find Us
Europe, Middle East +44 (0) 23 8048 4455
and Africa:Fax: +44 (0) 23 8048 4467
Instruction Manual: TT1260 Standard Definition Professional Receiver/DecoderPage vii
ST.TM.E10100.1
Page 8
Preliminary Pages
Technical Training
Training Courses
TANDBERG Television provides a wide range of training courses on the
operation and maintenance of our products and on their supporting
technologies. TANDBERG can provide both regularly scheduled courses and
training tailored to individual needs. Courses can be run either at your
premises or at one of our dedicated training facilities.
Where to Find Us
For further information on TANDBERG Television's training programme
please contact us:
International Telephone:+44 23 8048 4229
International Facsimile+44 23 8048 4467
E-mail Address:training@tandbergtv.com
Internet Addresshttp://www.tandbergtv.com
Customer Services and Technical Training Postal Address
Tandberg Television
Unit 2
Strategic Park
Comines Way
Hedge End
Southampton
Hampshire
SO30 4DA
United Kingdom
Return of Equipment
If you need to return equipment for repair, please contact the Customer
Services Helpdesk on +44 (0) 23 8048 4455. A Returns Authorisation
Number (RAN) will be issued and full details of the unit will be logged.
Technical Publications
If you need to contact TANDBERG Television Technical Publications
regarding this publication, e-mail: techpubs@tandbergtv.com.
Page viiiInstruction Manual: TT1260 Standard Definition Professional Receiver/Decoder
ST.TM.E10100.1
Page 9
Contents
Chapter 1
1. Introduction
1.1 Scope of this Manual................................................. 1-3
1.1.1 Who Should Use this Manual ....................... 1-3
1.1.2 What this Manual Describes ......................... 1-3
Identifying the Equipment ............................. 1-3
Table 1.3: Main Features of the Decoder Range........................... 1-5
Table 1.4: Main Features of the Satellite Receiver Range............ 1-5
Page 1-2Instruction Manual: TT1260 Standard Definition Professional Receiver/Decoder
ST.TM.E10100.1
Page 11
1.1 Scope of this Manual
1.1.1 Who Should Use this Manual
This manual is written for operators/users of the TT1260 Professional
Receivers and Decoders. It describes the unit’s functions and operation.
The manual is written to assist in the installation and day-to-day care and
operation of the unit. Maintenance information requiring the covers to be
removed is not included.
CAUTION...
Removing the covers of this equipment may invalidate the warranty.
1.1.2 What this Manual Describes
Identifying the Equipment
The Receivers and Decoders are designated by the marketing numbers
shown in Table 1.1.
Introduction
Figure 1.1: Front View of a TT1260 Satellite Receiver
The Marketing Number and fitted options are defined by the following:
InputsInput Frequency Input Symbol rate FEC Rates Digital
2 x 8PSK950 – 2150 MHz1 – 44.5 Msymbols/sQPSK:
1/2, 2/3, 3/4,
5/6, 7/8
8PSK:
2/3, 5/6, 8/9
2 x
8PSK/16QAM
950 – 2150 MHz1 – 44.5 Msymbols/sQPSK:
1/2, 2/3, 3/4,
5/6, 7/8
8PSK:
2/3, 5/6, 8/9
16QAM:
3/4, 7/8
1/2, 2/3, 3/4,
5/6, 7/8
Outputs
Outputs
4
4
4
NOTE…
All models have analogue outputs as standard.
Instruction Manual: TT1260 Standard Definition Professional Receiver/DecoderPage 1-5
ST.TM.E10100.1
Page 14
Introduction
1.2 Summary of Features
1.2.1 Main Features
The TT1260 is fully compliant with the appropriate sections of the
MPEG-2
1
, DVB-S2 and DSNG3 specifications and offers the following
features:
· Front Panel Controls and Indications:
² A vertical split two line x 40 character back-lit dot matrix LCD
display with pushbuttons for Up, Down, Left, Right, Edit, and Save
to provide information and operator choice entry
² LEDs to indicate lock and general alarm conditions
· Service Selection:
² Chosen from a menu list of available services carried in the
currently received transport stream
² Up to 40 pre-selected choices can be stored within the unit
· Multiple Inputs (Satellite Receivers)
² L-band Satellite Receivers have two inputs (either QPSK or QPSK,
8PSK and 16QAM)
· Video Decoding:
² 4:2:0 mode support video resolutions up to 720 pixels x 576 active
lines (25 frame/s) or 720 pixels x 480 active lines (30 frame/s)
² 4:2:2 mode support video resolutions up to 720 pixels x 608 active
lines (25 frame/s) or 720 pixels x 512 active lines (30 frame/s)
² Support for PAL- I, B, G, D, PAL- N, PAL- M, and NTSC-M (with
pedestal or without) composite video output via two 75Ω BNC
connectors
· Audio Decoding:
² Sampling rates 32, 44.1, 48 kHz
² All MPEG-1 data rates
² All Dolby Digital AC-3 data rates, decoded as a Dolby Stereo
downmix
² Linear uncompressed audio, data rates as defined by SMPTE 302M
· Data:
² Low Speed Data: RS-232 asynchronous (up to 38.4 kbit/s)
² High Speed Data: RS-422 synchronous (up to 2.048 Mbit/s)
(option)
· Transport Stream Output:
² ASI transport stream output with maximum data rate 160 Mbit/s
1
Moving Pictures Expert Group: MPEG-2 specification ISO 13818.
2
European Digital Video Broadcasting (DVB) Project. EN 300 421 Digital broadcasting systems for television, sound
and data services: Framing structure, channel coding and modulation for the 11/12 GHz satellite service.
3
European Digital Video Broadcasting (DVB) Project : EN 301 210 Digital broadcasting systems for television, sound
and data services: Framing structure, channel coding and modulation for digital satellite news gathering (DSNG) and
other contribution applications by satellite.
Page 1-6Instruction Manual: TT1260 Standard Definition Professional Receiver/Decoder
ST.TM.E10100.1
Page 15
· Conditional Access/Scrambling:
² Remote Authorisation System (RAS) version I
² EBU Basic Interoperable Scrambling System (BISS) Mode-E
² EBU Basic Interoperable Scrambling System (BISS) Mode-1
² VideoGuard Director
² TANDBERG Television Signal Protection
· TANDBERG Director system:
² Over-air remote control is available if the TT1260 is used as part of
a TANDBERG Director system (Over-air software downloading,
Re-start, Tuning and Retuning etc.)
NOTES…
1. The TANDBERG Director system GUI counts the inputs from zero (i.e. 0, 1).
2. TANDBERG Director versions 4 and onward allow selection of the L-band (RF) input.
· Remote Control:
² RS-232 or RS-485
² NCP Over-the-Air remote control via VideoGuard Director
² When the remote control is active, front panel control is disabled
but status information is still available (protocol is available from
TANDBERG Television Limited)
· Clock/Calendar:
² Available to co-ordinate universal and local time
² Constantly updated when locked to a valid transport stream
· Transport Stream Demultiplexing:
² Maximum capability is 160 Mbit/s, depending on CA in use and
input front end
· Video Decoding:
² Maximum Video Demultiplexing capability of 50 Mbit/s
² World System Teletext (WST)
² Support for Closed Captions and VITS/ITS/VITC
² Inverted Teletext
² Video Programming System (VPS)/Programme Delivery Control
(PDC)
² Neilson Coding AMOL 1 and AMOL 2
² Vertical Interval Time Code (VITC)
² Video Index
² Video Test Pattern Generator
· Error Data Handling (EDH):
² EDH is supported on the SDI (digital video) output
· Frame Synchronisation of digital video output to analogue input
Introduction
Instruction Manual: TT1260 Standard Definition Professional Receiver/DecoderPage 1-7
ST.TM.E10100.1
Page 16
Introduction
· Control Methods:
² Front Panel User Interface
² Asynchronous serial remote control
² Over-air remote control (TANDBERG Director system) (optional)
1.2.2 Inputs
ASI Inputs (Decoders)
Two BNC connectors support both byte-mode and single packet burst mode.
L-Band Inputs
Two F-type connectors connect the L-band output of a suitable LNB either
directly or via a suitable attenuator giving lightning and surge protection.
Remote Control
A 9-way D-type, male connector used to connect to a PC and can be
switched between the RS-232 and RS-485 input standards.
Frame Synchronisation
A BNC connector accepts a composite video input to which the video
output timing can be synchronised.
1.2.3 Outputs
Transport Stream Outputs
· Two BNC connectors output ASI transport streams with a maximum
data rate of 160 Mbit/s.
Video Outputs
· Two analogue composite video outputs carried on BNC connectors.
· Two digital video outputs carried on BNC connectors.
Audio Outputs
· Two 9-way D-type, female connectors decode two PES streams of
audio from the transport stream. The audio outputs simultaneous
analogue and digital. The digital mode can be changed via the user
interface.
Data Output
· RS-232 asynchronous low-speed data output carried on a 9-way,
D-type, female connector.
· RS-422 synchronous high-speed data output carried on a 9-way,
D-type, female connector.
Alarm Output
A 9-way D-type connector for alarm and failure monitoring is carried out
within the equipment. This produces a summary alarm signal that lights
the general front-panel ALARM LED.
Page 1-8Instruction Manual: TT1260 Standard Definition Professional Receiver/Decoder
ST.TM.E10100.1
Page 17
There is a 25-way D-type connector on the optional Alarm Relay Card
(TT1260/HDC/ALRM) with six relays for failure monitoring for NCP over-air.
The operator can define (using the Alarm Menu pages) which alarm
conditions that drive the relays and also the general front-panel ALARM
LED. This is described in Chapter 4, Alarms and Annex C, Menus.
1.2.4 Conditional Access and Scrambling
The transport stream received by the IRD may be encrypted. The CA
system is used to decrypt the required components of the transport
stream so that they can be decoded.
The following Conditional Access and Scrambling options are available for
the TT1260 range of Satellite Receivers and Decoders:
· No Conditional Access
· Basic Interoperable Scrambling System (BISS) Mode-1 and Mode-E
only.
· VideoGuard Director and BISS
· Remote Authorisation System (RAS) and BISS
· VideoGuard Director, RAS and BISS
· Signal Protection
Introduction
When the CA system uses a Smart Card, access by the user is via the back
panel of the IRD.
Instruction Manual: TT1260 Standard Definition Professional Receiver/DecoderPage 1-9
ST.TM.E10100.1
Page 18
Introduction
▼
(1)
(2)
(n)
▼
and
A
r
1.3 The Satellite Receiver
1.3.1 Typical Satellite System
The TT1260 Satellite Receiver is a component of the MPEG-2/DVB
compliant range of TANDBERG Television equipment. It is designed for use
by broadcasters and distributors of video, audio and data services over
satellite.
evolution 5000
Encoder
evolution 5000
Multiplexer (Main)
TANDBERG
Ethernet
Control
1 2 3
4 5 6
7 8 9
0 * ±
Local
Inputs
TANDBERG
Ethernet
TANDBERG
evolution 5000
Encoder
1 2 3
4 5 6
7 8 9
0 * ±
1 2 3
4 5 6
7 8 9
0 * ±
evolution 5000
Modulator (Main)
TANDBERG
Ethernet
Control
▲
◄►
TANDBERG
TANDBERG
Ethernet
evolution 5000
TANDBERG
Transport Stream
Encoder
Processo
MPEG-2
1 2 3
4 5 6
7 8 9
0 * ±
evolution 5000
Multiplexer (Standby)
TANDBERG
Ethernet
Control
10BaseT
1 2 3
4 5 6
7 8 9
0 * ±
Transport
Stream
evolution 5000
Multiplex Element Manager
Figure 1.3: Typical Satellite Compression System
evolution 5000
Modulator (Standby)
TANDBERG
Ethernet
Control
Ethernet Hub
Up-converter
TT1260
HP
▲
◄►
Ethernet
Control
Page 1-10Instruction Manual: TT1260 Standard Definition Professional Receiver/Decoder
ST.TM.E10100.1
Page 19
1.3.2 Input Connections
f
p
The Satellite Receiver interfaces directly to Low-Noise Block (LNB) and
accepts an intermediate frequency (IF) input in the band 950 - 2150 MHz
(L-band) for operation in the specified symbol-rate range (see
Annex B, Technical Specification). The unit can provide dc power and
polarisation switching to the LNB.
1.3.3 What the Satellite Receiver Does
The Receiver can be tuned to a specified satellite channel frequency and
polarisation. The input is down-converted via a Low-Noise Block (LNB) to
provide an L-band input to the Receiver. The front-end tuning is
microprocessor controlled with a frequency synthesised local oscillator. A
software tuning and acquisition algorithm resolves translation errors
(mainly due to the LNB).
The signal is then passed to a demodulator that recovers the signal using
soft-decision decoding. The resulting stream is Reed-Solomon decoded and
descrambled to provide inputs to the Decoder circuit. The received channel
may contain multiple services, therefore the Receiver’s demultiplexer is
configured to select a single video service and other audio/data
components and present them at the output.
Introduction
horizontal
polarisation
vertical
polarisation
f
n+1
f
n
SHF
f
n+2
f
n+3
n+4
Multiple satellite channels
Multiple services on the tuned satellite channel
Multiple components on the selected service
Low-Noise Block
L-band
Tune to a
satellite
channel
TT1260 Satellite Receiver
Select a
service from
the satellite
channel
components from
the chosen service
Select the
Video
Audio
Data
Trans
ort Stream
Figure 1.4: What the Satellite Receiver Does
Instruction Manual: TT1260 Standard Definition Professional Receiver/DecoderPage 1-11
ST.TM.E10100.1
Page 20
Introduction
r
▼
1.3.4 Over-air Software Download
(TANDBERG Director Systems)
The TT1260 Satellite Receiver is shipped with the appropriate software
installed, but it is designed to allow replacement of this code by new
versions of software transmitted over-air. The new code is downloaded as
a background task in the same transport stream as used for the normal
transmission of services.
Figure 1.5 shows the system required for this function. The existing
software continues to function during the download process. Once all the
new code has been received, installed and validated, it is loaded into the
active memory and becomes the operating software for the Receiver.
FMMs
Access Control
Computer
MPEG-2
Streams
Software
Download
Controlle
Download
Service
TANDBERG
evolution 5000
Multiplexer
1 2 3
4 5 6
7 8 9
0 * ±
TANDBERG
70/140 MHz IF
evolution 5000
Modulator
TANDBERG
▲
◄ ►
Up-converter
TANDBERG
TT1260 Receiver
and HPA
Control
evolution 5000
Multiplex Element Manager
Figure 1.5: Typical Download Transmission System
Page 1-12Instruction Manual: TT1260 Standard Definition Professional Receiver/Decoder
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Page 21
1.4 The Decoder
▼
(1)
(2)
(n)
▼
r
1.4.1 Typical Decoder System
The Decoder is a component of TANDBERG Television’s range of
equipment. It is designed for use by broadcasters and distributors of video
and audio services. It can be used as a transport stream monitor or to
decode signals received over a telecommunications network.
evolution 5000
Encoder
Introduction
Local
Inputs
TANDBERG
Ethernet
evolution 5000
TANDBERG
Ethernet
evolution 5000
Encoder
TANDBERG
Transport Stream
Encoder
Processo
MPEG-2
Transport
Stream
1 2 3
4 5 6
7 8 9
0 * ±
TANDBERG
1 2 3
4 5 6
7 8 9
0 * ±
1 2 3
4 5 6
7 8 9
0 * ±
TANDBERG
evolution 5000
Multiplex Element Manager
evolution 5000
Multiplexer (Main)
1 2 3
4 5 6
7 8 9
0 * ±
Ethernet
Control
evolution 5000
Multiplexer (Standby)
1 2 3
4 5 6
7 8 9
0 * ±
Ethernet
Control
10BaseT
evolution 5000
Modulator (Main)
TANDBERG
Ethernet
Control
evolution 5000
Modulator (Standby)
TANDBERG
Ethernet
Control
Ethernet Hub
▲
◄►
TANDBERG
Telecommunications
Network
Network
Adapter Unit
▲
◄►
TANDBERG
Network
TANDBERG
TT1260 Decoder
Adapter Unit
Ethernet
Control
Figure 1.6: Typical Compression System
Instruction Manual: TT1260 Standard Definition Professional Receiver/DecoderPage 1-13
ST.TM.E10100.1
Page 22
Introduction
1.4.2 Input Connections
The Decoder has the following inputs:
Two ASI copper interfaces for operation up to 160 Mbit/s for 188 byte
packets and 160 Mbit/s for 204 byte packets.
1.4.3 What the Decoder Does
The ASI interfaces are used to present the transport stream in the format
required by the internal Decoder circuitry. At this point, the operation of
the unit is the same as the Satellite Receiver.
The Decoder can be used to receive an input signal from a Public Telecom
Network via a Network Adapter Unit (NAU). No error correction is
supported at the input of the unit so a level of Quality of Service should be
negotiated with the Telecom Network Provider.
The Decoder is configured to select a single video service and other
audio/data components from the multiple services on the incoming
transport stream and present them at the output.
Network
Adapter Unit
Incoming Transport Stream
carried over a
telecommunications network
Multiple services on the incoming transport stream
TANDBERG
Multiple components on the selected service
Figure 1.7: Role of the Decoder
1.5 TT1260 Control Modes
1.5.1 Introduction
The TT1260 is designed for unattended operation. Once set-up, the unit
requires no further attention except to ensure the fan is working. There
are up to three control modes associated with the Receiver (dependent
upon options fitted). The unit remains in the chosen control mode until
another mode is requested.
TT1260 Decoder
Select a service
from the incoming
transport stream
Select the
components from
the selected
Video
Audio
Data
Transport Stream
NOTE…
Local (Front Panel) Control is the factory default if TANDBERG Director is not installed.
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ST.TM.E10100.1
Page 23
1.5.2 Front Panel (Local) Modes
Operating the IRD from the Front Panel is via two main operating modes:
Navigate and Edit. See Section 3.3, Front Panel Operating Modes.
Timeout (5 minutes)
EDIT Off
Introduction
EDIT
EDIT On
SAVE
NAVIGATE
Figure 1.8: Front Panel States
1.5.3 Serial Remote Control Mode
The unit enters this state when the RS232/RS485 REMOTE port receives
a configuration change command or the Remote control mode is selected
in the System Menu (#6); see Section C.9, Sy stem Menu. During this
state, local commands are ignored. When a modem is connected to the
connector at the rear panel, it must be set to run at 9600 baud.
1.5.4 TANDBERG Director NCP Control Mode
With the VideoGuard Conditional Access software installed and a valid
Smart Card inserted, a TT1260 Satellite Receiver can be put into Director
NCP control mode.
NOTE…
Front Panel mode is the factory default for Receivers used in a TANDBERG Director system. To switch
to Director NCP mode refer to Section 3.8, Setting Up a System.
All Front Panel and Serial Remote commands are ignored except the
operating mode. The TT1260 can be put into a local lockout condition.
When in this condition, there are two ways to recover control:
· Cancelling the local lockout using an over-air command.
· Entering a PIN number via the Conditional Access menu in
Menu #4.3.6 (see Section C.7.3, Director Menu).
Either of these actions will put the Receiver out of local lockout mode.
Instruction Manual: TT1260 Standard Definition Professional Receiver/DecoderPage 1-15
ST.TM.E10100.1
Page 24
Introduction
1.6 Guided Tour
1.6.1 Construction
The TT1260 is constructed using a screened self-ventilated modular
system; all operational inputs and outputs are via rear-panel connectors.
The unit may be operated freestanding or mounted in a 19-inch rack.
1.6.2 Front Panel Controls
The physical interface for the Front Panel consists of an alphanumeric LCD
display, pushbuttons, and status LEDs that are used to set up and monitor
the unit. The general layout is shown in Figure 1 . 9. Information on the use
of these controls is given in Chapter 3, Operating the Equipment Locally.
User input is via six pushbuttons comprising four cursor pushbuttons:
LEFT, RIGHT, UP, and DOWN; and two edit control pushbuttons: EDIT
and SAVE.
Each pushbutton has an integral green LED except SAVE, which has an
integral red LED. When lit these LEDs indicate to the user which
pushbutton is currently active.
Automatic repeat following an initial delay period is implemented for the
LEFT, RIGHT, UP and DOWN pushbuttons in software.
Figure 1.9: Front Panel Controls
1.6.3 Front Panel LEDs
Figure 1.9 shows the location of the LEDs on the front panel. The LEDs
indicate the equipment status as follows:
The red ALARM LED is used to indicate an IRD fault condition, e.g. a
missing or faulty input signal. It should be off for correct operation,
although it may be lit briefly during power-up.
Alarm LED
Lock LED
LCD display
EditUp
Left
Save
Down
Right
The green LOCK LED is used to indicate that the IRD is locked to a
transport stream when lit, and indicates correct conditions and correct
system functioning.
1.6.4 Bit Error Ratio Measurement
Bit Error Ratio (BER) measurement is done by an LCD display
representation. See the QPSK Satellite menu (Section C.5, Input Status
Menu).
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Page 25
1.6.5 Conditional Access and Scrambling Options
VideoGuard Director
There is a slot on the rear panel to allow the insertion of a Conditional
Access (CA) card for the VideoGuard Director CA system.
Remote Authorisation System (RAS 1)
With the appropriate configuration, the TT1260 fully descrambles Remote
Authorisation System (RAS) input transport stream. The ability to decrypt
all the components in any other transport stream is a function of the
specific CA system decryption.
Basic Interoperable Scrambling System (BISS)
With the appropriate configuration, the TT1260 fully descrambles the BISS
mode-1 or mode-E input transport stream. This system has been
developed by the European Broadcasting Union (EBU) as an open
scrambling system.
BISS has five main levels of operation: Mode 0, Mode 1, Mode 2, Mode 3
and Mode-E
Introduction
BISS Mode 0 corresponds to no scrambling.
BISS Mode 1 operation uses a fixed value for the control word to
scramble the services in the transport stream from the Encoder. To
descramble the transmission, the TT1260 needs to have the matching
control word value.
BISS Mode E operation uses a fixed value for the control word to
scramble the services in the transport stream from the Encoder. To
descramble the transmission, the TT1260 needs to have the matching
control word value.
BISS Modes 2 and 3 are not supported at this release.
1.6.6 Rear Panel
Inputs and outputs to the unit are taken via the rear panel. Figure 1.10
shows a typical Decoder rear panel.
Figure 1.10: TT1260 Decoder Rear Panel
Connector descriptions are given in Chapter 2, Installing the Equipment
and Chapter 5, Options.
Instruction Manual: TT1260 Standard Definition Professional Receiver/DecoderPage 1-17
ST.TM.E10100.1
Page 26
Introduction
BLANK
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ST.TM.E10100.1
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2. Installing the Equipment
Contents
2.1 Read This First!.........................................................2-3
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2.1 Read This First!
2.1.1 Handling
The TT1260 must be handled and installed carefully and thoughtfully to
prevent safety hazards and damage.
2.1.2 Installing the Equipment
Ensure the personnel designated to fit the unit have the appropriate skills
and knowledge. If in any doubt, contact TANDBERG Television Customer
Services (see Preliminary Pages for contact details).
Installation of the product should follow these instructions, and should only
use installation accessories recommended by the manufacturers. When
rack mounted, this equipment must have shelf supports as well as being
fixed at the front panel.
Do not use this product as a support for any other equipment.
2.1.3 Lifting
Although this product only weighs approximately 4 kg (8.8 lb), in some
circumstances it might be awkward to lift. In which case, do not attempt to
lift or move it without proper assi stance or equipment. If in doubt, seek
assistance.
Installing the Equipment
2.2 Preliminary Checks
2.2.1 Mechanical Inspection
WARNING…
REMOVING THE COVERS OF THIS EQUIPMENT MAY INVALIDATE ANY WARRANTIES, CAUSE A
SAFETY HAZARD OR/AND AFFECT THE EMC PERFORMANCE. CHECK WITH TANDBERG
TELEVISION CUSTOMER SERVICES.
Inspect the equipment for damage-in-transit. If in doubt, please contact
TANDBERG Television Customer Serv ices (see Preliminary Pages).
2.2.2 Moving the Equipment Safely
Do not place this product on an unstable cart, stand, bracket,
or table. The product may fall, causing serious injury and
serious damage to the product. Use only with a cart, stand,
bracket or table recommended by TANDBERG Television Ltd.
An appliance and cart combination should be moved with care. Quick
stops, excessive force, and uneven surfaces may cause the appliance and
cart combination to overturn. Do not move or carry the equipment whilst i t
is still connected to the supply or other leads, is live, or is in operation.
Instruction Manual: TT1260 Standard Definition Professional Receiver/DecoderPage 2-3
ST.TM.E10100.1
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Installing the Equipment
2.3 Installing the Equipment
2.3.1 Fixing
The TT1260 is designed for fixed use only and has been shipped with fixing
brackets suitable for a standard 19 inch rack. When install ed in a rack, it
should be secured using the fixing brackets. In addition, support shelves
must be used to reduce the weight on the brackets. Ensure it is firmly and
safely located and it has an adequate flow of free-air.
A freestanding unit should be installed on a secure horizontal surface
where it is unlikely to be knocked or its connectors and leads disturbed.
2.3.2 Ventilation
Openings in the Covers
Side openings in the cabinet, as well as a front-mounted cooling fan, are
provided for ventilati on. They ensure rel i abl e operati on of the p roduct and
protect it from overheating. The op eni ngs or the fan m ust not be bl ocked or
covered.
Air is released through vents at both
sides of the unit.
Air is drawn into the interior by
a front-mounted cooling fan.
Figure 2.1: Air flow Through the Equipment
Care in Positioning
CAUTIONS...
1. The fan contained within this unit is not fitted with a dust/insect filter. Pay attention to the
environment in which it is to be used.
2. Do not install units so that the air intake of one aligns with the outlet on another. Provide baffles and
adequate spacing.
The TT1260 should never be placed near or over a radiator or other source
of heat. It should not be placed in a built-in i nstal lati on such as a rack unl ess
proper ventilation is provided and the i nstructi ons have been adhered to.
Allow at least 40 mm fr ee air-space at each side of the equipment to
ensure adequate cooling. Racks containing stack ed equipment may need
to be forced air-cooled to reduce the ambient temperature within the rack.
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ST.TM.E10100.1
Page 31
Protection from Moisture
Do not install this equipment in areas of high humidity or where there is a
danger of water ingress.
2.3.3 Installing Cables - Safety
Power supply cables should be routed so that they are not likely to be
walked on or pinched by items placed upon or against them. Pay particular
attention to cables at plugs, convenience receptacles, and the poin t where
they exit from the appl iance.
Do not run ac power cables in the same duct as signal leads. Do not move
or install equipment whilst it is still attached to the mains supply. Ensure
safety and ESD precautions are observed whilst inter-connecting
equipment.
Installing the Equipment
2.4 EMC Compliance Statements
2.4.1 EN 55022/AS/NZS 3548
This is a Class A product. In a domestic environment this product may
cause radio interference in whi ch case the user m a y b e required to take
adequate measures.
2.4.2 FCC
This equipment has been tested and found to comply with the limits for a
Class A digital device, pursuant to Part 15 of the FCC Rules. These limits
are designed to provide reasonable protection against harmful interference
when the equipment is operated in a commercial environment.
This equipment generates, uses and can radiate radio frequency energy
and, if not installed and used in accordance with the instruction manual,
may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference in
which case the user will be required to correct the interference at his own
expense.
1
2.5 AC Supply Operating Voltage and Fusing Safety Information
2.5.1 AC Power Supply
The TT1260 operates from an auto-ranging mains power supply
(100-120 Vac or 220-240 Vac 50/60 Hz nominal) and is designed for use
in ambient air temperature in the range 0°C to +40 °C. There are no links
etc. to be altered for operation from different supply voltages. The full
Technical Specification is given in Annex B, Technical Specification.
1
The EMC information was correct at the time of manufacture. The EMC tests were performed with the Technical
Earth attached.
Instruction Manual: TT1260 Standard Definition Professional Receiver/DecoderPage 2-5
ST.TM.E10100.1
Page 32
Installing the Equipment
1. THE TT1260 SHOULD ONLY BE OPERATED FROM THE TYPE OF POWER SOURCE
2. THE TT1260 RANGE OF RECEIVERS AND DECODERS ARE NOT FITTED WITH AN AC
Figure 2.2: AC Power Inlet Assembly
WARNINGS…
INDICATED ON THE MARKING LABEL. IF YOU ARE NOT SURE OF THE TYPE TO YOUR
BUSINESS, CONSULT YOUR APPLIANCE DEALER OR LOCAL POWER COMPANY. DO NOT
OVERLOAD WALL OUTLETS AND EXTENSION CORDS AS THIS CAN RESULT IN A RISK OF
FIRE OR ELECTRIC SHOCK. AC SUPPLY.
POWER ON/OFF SWITCH. ENSURE THE SUPPLY SOCKET OUTLET IS INSTALLED OR
LOCATED NEAR THE EQUIPMENT SO THAT IT IS ACCESSIBLE.
Supply Inlet Mains
Position of the fuse carrier
Table 2.1: Fuse Information
ItemSpecification
FuseSingle pole, fitted in live conductor in power input filter at rear of unit.
Fuse type5 mm x 20 mm anti-surge (T) HBC, IEC127 (sheet v)
Fuse rating1.6 A
Fuse rated voltage250 Vac
Power lead connector fuse (if appropriate)5 A
NOTE...
See Annex B, Technical Specification for more fuse information.
2.5.2 AC Power Supply Cord
General
A two-metre mains supply cord is supplied with this product. It is fitted
with a moulded plug suitable for the USA, UK or mainland Europe as
advised at the time of ordering.
NOTE...
The TT1260 is not fitted with an ac power supply ON/OFF switch. Ensure the socket-outlet supplying
the equipment is installed near the equipment so that it is easily accessible.
Wire Colours
The wires in the supply cord are coloured as shown i n Table 2.2.
Page 2-6Instruction Manual: TT1260 Standard Definition Professional Receiver/Decoder
If the colours2 do not correspond with the coloured markings identifying
the terminals in a locally supplied plug, proceed as in Table 2.3. The
inclusion of Table 2.3 is for reference.
Table 2.3: Non Standard Supply Cord Wire Colours
Wire Colour (UK)Action
green-and-yellow...must be connected to the terminal in the plug which is marked with the letter E or the safety earth
symbol or coloured green or green-and-yellow.
blue...must be connected to the terminal in the plug which is marked with the letter N or coloured black.
brown...must be connected to the terminal in the plug which is marked with the letter L or coloured red.
2.5.3 Connecting the Equipment to the AC Power Supply
As there is no mains power switch fitted to this unit, ensure the local ac
power supply is switched OFF before connecting the supply cord.
Connect the mains lead to the TT1260 and then to the local supply.
2.6 Technical Earth Connection
The terminal marked at the rear panel is a Technical Earth. It is
provided to:
1. Ensure all equipment chassis fixed within a rack are at the same
technical earth potential. To do this, connect a wire between the
Technical Earth terminal and a suitabl e point on the rack
2. Eliminate the migration of stray charges when connecting between
equipment.
The Technical Earth provides a suitable connection between the TT1260
and the installation to give a low impedance path at normal operating
frequencies.
2
BS 415 : 1990 - Safety Requirements for Mains-operated Electronic and Related Apparatus for Household and
Similar General Use.
Instruction Manual: TT1260 Standard Definition Professional Receiver/DecoderPage 2-7
ST.TM.E10100.1
Page 34
Installing the Equipment
Location of the Technical Earth
Figure 2.3: Location of the Technical Earth
2.7 Signal Connections
2.7.1 General
It is strongly recommended that the terminal marked at the rear panel of the equipment is connected
to a site Technical Earth before any external connections are made and the equipment is powered. This
limits the migration of stray charges.
CAUTION...
All signal connecti ons are made via the rear panel. A typical rear panel is
shown in Figure 2.4. The connections are also shown schematically in
Figure 2.5, and a full technical specification is given in Annex B.
The Receiver provides a flexible transport stream input interface. It is not a
requirement for the equipment to support more than one optional input
type in any one configuration.
The status information appropriate to each input type is available to the
user via the User Interface, and also via the remote control interfaces.
Figure 2.4: Typical Decoder Rear Panel
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Page 35
TT1260 Professional Receiver
A
A
Motherboard
(TT1260/DIRBAS)
Installing the Equipment
Frame Synchronisation
RS-232/RS-485 Remote Control
QPSK In
QPSK In
FRAME SYNC HI-Z
RS232/RS485 REMOTE
Alarm Relay Card (S12316)
(TT1260/HWO/ALRM)
QPSK Input Card (S12496)
(TT1260/HWO/QPSK)
QPSK IN 1
QPSK IN 2
ASI OUT 1
ASI OUT 2
AUDIO 1
AUDIO 2
CVBS 1
CVBS 2
SDI 1
SDI 2
RS232 DATA
LARM
ALARM OPTION
ASI Transport Streams
ASI Transport Streams
Analogue/Digital Audio Output
Analogue/Digital Audio Output
Analogue Video Output
Analogue Video Output
Digital Video Output
Digital Video Output
Low-speed Async Data
Alarms
larms
Option
Cards
AC Mains Supply
L-Band Input
L-Band Input
ASI Data In
ASI Data In
8PSK/16QAM Card (S12501)
(TT1260/HWO/HM)
8PSK/16QAM IN 1
8PSK/16QAM IN 2
ASI Input Card (S12495)
(TT1260/HWO/ASI)
ASI 1
ASI 2
RS-422 Data Enabler Card (S12595)
(TT1260/HWO/HSDATA)
DATA OUT
Power Supply Unit
High-speed Sync Data
Figure 2.5: TT1260 Signal Connections
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Installing the Equipment
2.7.2 TT1260 Base Unit (TT1260/DIRBAS)
Rear Panel View
Figure 2.6: Typical Decoder Rear Panel, with ASI Input and Alarm Option Fitted
ASI Out
Two BNC sockets output ASI transport streams
with a maximum data rate of 160 Mbit/s. The
specification for these connectors are given i n
Section B.5.2, Audio Outputs.
ASI OUT 1/2
Table 2.4: ASI Out Connector (2 Off)
ItemSpecification
Connector typeBNC 50 W socket
Connector designationASI OUT 1
ASI OUT 2
Pin-outsCentre
ShieldGround/Chassis
Audio Outputs
A pair of 9-way male D-type connectors provide
two stereo channels. Each connector carries a
single channel of a stereo pair in both analogue
and digital form. The output can be varied
according to service and unit configuration.
Audio control is through the Service Menu
(#3). The specification for this connector is
given in Section B.5.2, Audio Outputs.
AUDIO 1 / 2
Page 2-10Instruction Manual: TT1260 Standard Definition Professional Receiver/Decoder
Nominal output impedance50 W
Maximum data rate3.072 Mbit/s
Output level+18dBm nominal clipping level. Selectable in range 12 to +24dBm.
Load impedance³600 W balanced
Pin 1 ¾ Digital audio +
Pin 2 ¾ Ground
Pin 3 ¾ Left +
Pin 4 ¾ Right +
Pin 5 ¾ Ground
Pin 6 ¾ Digital audio Pin 7 ¾ Ground
Pin 8 ¾ Left Pin 9 ¾ Right -
Installing the Equipment
Analogue Video Output
This BNC socket provides the standard definition (SD)
analogue output in the form of a composite video
output. The output standard is configured using the
Video Menu #3.1. The specification for these
connectors are given in Section B.5.1, Video Outputs.
Table 2.6: Analogue Output Connector (2 Off)
ItemSpecification
Connector typeBNC 75 W socket
Connector designationCVBS 1
CVBS 2
Pin-outsCentre
Shield
Video output
Ground/Chassis
Digital Video Output
The serial digital video output is routed in 4:2:2
format to an SDI output at 270 Mb/s via two BNC
sockets. Video control is through the Vi deo Menu
#3.1. The specification for these connectors are given
in Section B.5.1, Video Outputs.
CVBS 1/2
SDI 1/2
Table 2.7: Digital Output Connector (2 Off)
ItemSpecification
Connector typeBNC 75 W socket
Connector designationSDI 1
SDI 2
Pin-outsCentre
Shield
Instruction Manual: TT1260 Standard Definition Professional Receiver/DecoderPage 2-11
ST.TM.E10100.1
Video output
Ground/Chassis
Page 38
Installing the Equipment
Frame Synchronisation
A BNC socket is used by the Decoder to frame
lock to an external video source. The frame
information is input as a composite synchronise
signal, with or without active video. The user can
offset the synchronisation to the video output by
±8 lines, with a resolution of 1 pixel. Lip sync
error introduced by the Receiver is in the range –
10ms to +30ms. This implies audio frame skip
and repeat.
The video and audio can be synchronised to an
analogue studio reference signal. This supports
both 625 and 525 frame locking.
This F Sync is activated through the Service menu
(#3). The specification for this connector is given
in Section B.4.4, Frame Sync Connector.
Table 2.8: Frame Sync Hi-Z Connector
FRAME SYNC Hi-Z
ItemSpecification
Connector typeBNC 75 W socket
Connector designationFRAME SYNC Hi-Z
Pin:CentreAnalogue Black and Burst Input
ShieldGround/Chassis
ImpedanceLast unit must be terminated with 75 W
Ethernet
The TT1260 has an Ethernet remote control port
for TANDBERG engineering debug purposes and
future functionality.
Pin 1 ¾ Tx Out (+)
Pin 2 ¾ Tx Out (-)
Pin 3 ¾ Rx In (+)
Pin 6 ¾ Rx In (-)
10/100 Base-T
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Page 39
Remote Control
E
Connect to a PC and use the System Menu
#6.1.2 to switch between the RS-232 and
RS-485 input standards.
The specification for this connector is given in
Section B.5.4, Remote Connector. The Remote
Control Protocol is published in manual
ST.TS.E10100, and in the TANDBERG Televi sion
RS-232 remote control protocol document.
Table 2.10: Remote Control Connector
ItemSpecification
Connector type9-way, D-type, Male
Connector designationRS232/RS485REMOTE
RS-232RS-485
Pin-outs
Pin
1
Data Carrier Detected (DCD)
2
Receive Data (RxD)
3
Transmit Data (TxD)
4
Data Terminal Ready (DTR)
5
Ground
6
Data Set Ready (DSR)
7
Request to Send (RTS)
8
Clear to Send (CTS)
9
Not connected
Direction
Input
Input
output
output
—
input
output
input
—
Installing the Equipment
RS232/RS485 REMOT
Pin
1
Not connected
2
Not connected
3
Not connected
4
Rx
5
Ground
6
Not Tx
7
Tx
8
Not Rx
9
Not connected
Alarm Connector and Relay
The master alarm relay connector has a summary
relay. The relay is activated whenever the unit is
in alarm status, or the power is switched off.
Pin 2 ¾ N/C
Pin 3 ¾ N/C
Pin 4 ¾ Common
Pin 5 ¾ N/C
Pin 6 ¾ N/C
Pin 7 ¾ N/C
Pin 8 ¾ Normally Closed (Open on Alarm)
Pin 9 ¾ Normally Open (Closed on Alarm)
ALARM
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Installing the Equipment
RS-232 Low-speed Asynchronous Data Output
A 9-way, D-type female connector provides an
asynchronous serial communications interface for
the reception of low-speed data. The status of the
data output on this connector is given in the Data
menu #3.4. The technical specification for this
connector is given in Section B.5.3, Data Outputs.
NOTE…
Low-speed asynchronous data output is disabled when the High Speed RS-422 Data Enabler Card
(TT1260/HWO/HSDATA) is fitted.
Table 2.12: RS-232 Low-speed Data Connector
ItemSpecification
Connector type9-way, D-type, Female
Connector designationRS232 DATA
StandardsRS-232 DATA
ConfigurationDCE
Pin-outs
RS232 DATA
Pin 1 ¾ Not used
Pin 2 ¾ Receive Data Output (RxD)
Pin 3 ¾ Not Used
Pin 4 ¾ Not Used
Pin 5 ¾ Ground
Pin 6 ¾ Not used
Pin 7 ¾ Not used
Pin 8 ¾ Not used
Pin 9 ¾ Not used
2.7.3 Alarm Relay Card (TT1260/HDC/ALRM)
General
The Alarm Relay Card has six additional relays. The alarm relays are
programmable to reflect the state of one or more of the individual
monitored alarm conditions.
Rear Panel View
Figure 2.7: Alarm Relay Card Rear Panel
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ST.TM.E10100.1
Page 41
Connector Details
A
Alarm Option
The specification for this connector is given in
Annex B, Section B.5.5, Alarm Connectors.
Table 3.3: Selecting a Menu Option...............................................3-7
Table 3.4: Entering a Menu Value..................................................3-7
Table 3.5: Setting Up the Satellite Receiver...................................3-8
Table 3.6: Setting Up the Decoder.................................................3-8
Table 3.7: Selecting a Service........................................................3-9
Table 3.8: Selecting a Power-up Service.......................................3-9
Table 3.9: Selecting the Video Component....................................3-9
Table 3.10: Manually Selecting the Audio Components...............3-11
Table 3.11: Setting Up Async Data/Sync Data.............................3-11
Table 3.12: Setting Up Teletext................................................... 3-12
Table 3.13: Setting Up VBI.......................................................... 3-12
Table 3.14: Viewing the PCR PID Menu ..................................... 3-13
Table 3.15: Viewing the Network ID Menu.................................. 3-13
Table 3.16: Setting Up the Conditional Access........................... 3-14
Table 3.17: Setting up the Transport Stream Output (TSO)........ 3-15
Table 3.18: Setting up the Alarms............................................... 3-16
Table 3.19: Setting Up a System................................................. 3-16
Table 3.20: Viewing the IRD Details Menu.................................. 3-17
Table 3.21: System Restart Menu............................................... 3-17
Table 3.22: Setting up a Preset Service...................................... 3-18
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Page 45
3.1 Powering the Equipment
3.1.1 Switching On
CAUTION...
This equipment should not be operated unless the cooling fan is working and there is free-air flow
around the unit. Refer to Section 2.3.2 Ventilation.
Connect the signal inputs and ac power supply to the TT1260 and power
up the unit. After a short period of initialisation and the TT1260 gaining
lock, the unit will power-up in Navigate mode. This is the usual operating
condition.
The Lock LED will be on (green) when a signal is locked and off when
unlocked. See Figure 3.2 for the location of the Lock LED.
Operating the Equipment Locally
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Page 46
Operating the Equipment Locally
3.1.2 Power-up Operating Modes
TT1260 INITIALISING is displayed
during power-up. The Alarm LED
and Lock LED illuminate briefly
Secondary
Flash code
is loaded
Power-up
Yes
Is the
RIGHT button
held in?
No
Initialisation
Show SERVICE Menu (#3)
Local
What was
Control Mode at
Power Off?
Remote
FRONT
PANEL
(LOCAL)
CONTROL
NCP Command
LOCAL
LOCKOUT
Enter PIN
Figure 3.1: Power-up Operating Mode
NCP
TANDBERG
DIRECTOR
NCP
CONTROL
REMOTE
CONTROL
Only available when
VideoGuard is
installed and a valid
Smart Card inserted
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Operating the Equipment Locally
3.2 Front Panel Controls and Pushbuttons
Front Panel items are described under Section 1.6,Guided Tour.
When the Front Panel pushbuttons are not used for approximately five
minutes, the display will revert to Menu #1.1 and any unsaved edits will be
lost.
Alarm LED
Lock LED
LCD display
Figure 3.2: Front Panel Controls and Pushbuttons
3.3 Front Panel Operating Modes
3.3.1 General
Operating the TT1260 from the Front Panel is via two operating modes:
Navigate Mode (see Section 3.3.2)and Edit Mode
(see Section 3.3.3).
3.3.2 Navigate Mode
EditUp
Left
Save
Down
Right
Navigate mode allows the user to move between menus and pages within
menus (editing the left display area).
Table 3.1: Navigate Mode
ActionResult
Up Pushbutton PressedGo to page given by uplink of current page, obtain and display current data.
Down Pushbutton PressedGo to page given by down link of current page, obtain and display current data.
Left Pushbutton PressedGo to page given by left link of current page, obtain and display current data.
Right Pushbutton PressedGo to page given by right link of current page, obtain and display current data.
Edit Pushbutton PressedEnter Edit mode at current page (if permitted else no effect).
Save Pushbutton PressedNo effect.
Pushbutton LEDs will be updated to indicate which pushbutton presses are
still valid as each navigation pushbutton press event is processed. For
example, a lit Up pushbutton LED indicates there are pages above the
current one.
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Operating the Equipment Locally
3.3.3 Edit Mode
Edit mode edits the right displa y area and allows the user to alter control
parameters that define the TT1260 behaviour. To enter Edit mode press
the Edit pushbutton when on a page containing an editable control
parameter and the front panel is the controlling user interface. Edit may be
entered on some special pages at all times, for example on the page
defining the controlling user interface.
The Front Panel returns to Navigate mode when Edit is pressed again
(abort edit with no save) or when Save is pressed (save modified
parameter values). Processing of events from the front panel event queue
depends on the current operating mode of the front panel.
Table 3.2: Edit Mode
ActionResult
Up Pushbutton PressedIncreases value of current edit parameter by one unit.
Down Pushbutton PressedDecreases value of current edit parameter by one unit.
Left Pushbutton PressedMoves cursor one edit parameter/parameter digit left (making that the current edit
Right Pushbutton PressedMoves cursor one edit parameter/parameter digit right (making that the current edit
Edit Pushbutton PressedAborts edit (no save/action of any modified parameters) and returns to Navigate mode,
Save Pushbutton PressedSave/action new parameter values and returns to Navigate mode, obtain and display
parameter).
parameter).
obtain and display current data.
current data.
Pushbutton LEDs are updated to indicate which pushbutton presses are still
valid as each edit p u shb utton p r ess ev ent is processed. For example, wh en
the LEFT pushbutton LED is lit it indicates there are additional editable
parameters to the left of the current cursor position.
There is a maximum idle period of five minutes when Edit mode will time
out and return to Navigate mode.
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3.4 Using the Local Controls
3.4.1 LCD Menu Descriptions
Detailed LCD menu descriptions are given in Annex C, Menus. This chapter
concentrates on describing the use of the menus for local operation.
3.4.2 Selecting a Menu Option
Some items shown in the right display area of the front panel LCD display
have a set number of options. An example of this is the VIDEO TEST
PATTERN (Menu #3.1.6) which has a number of preset Video Test Patterns
associated with it. Use the following steps as a general guide to selecting
an option.
Table 3.3: Selecting a Menu Option
StepActionResult
Operating the Equipment Locally
1Select the menu and display the required
selection.
2Press EDIT on the front panel.The LED will come on to show the TT1260 is in EDIT mode.
3Use the arrow pushbuttons to step through
the options.
4Press SAVE to store the option or press
EDIT to cancel the selection and return to
the source menu.
3.4.3 Entering a Menu Value
Some items shown in the right display area of the front panel LCD display
have a user-entered value. An example of this is the VIDEO OUTPUT LEVEL
(Menu #3.1.10) in which the video output level has to be entered. Use the
following steps as a general guid e to entering a value.
Table 3.4: Entering a Menu Value
StepActionResult
1Select the menu and display the required
selection.
2Press EDIT on the front panel.The LED will come on to show the TT1260 is in EDIT mode.
3Use the RIGHT or LEFT pushbutton to
move the cursor to the required digit.
4Change the value by using the arrow
pushbuttons.
5Press SAVE to store the option.
Normally there is only one selectable item. If there is more than
one, use the RIGHT and LEFT pushbuttons as described in
Table 3.4.
This action scrolls through the options in a continuous loop.
Each pushbutton has a built-in LED that turns on if the pushbutton
function is appropriate to the displayed information.
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3.5 Setting Up the Input (Menu #2)
3.5.1 Satellite Receiver
Use Table 3.5 to step through the set up procedure of the Satellite
Receiver using Menu #2. The transmission parameters must be known
before starting.
Table 3.5: Setting Up the Satellite Receiver
StepActionResult
1Go to Menu #2.2 and select SOURCE 1.The Receiver takes its signals from two sources. Set up both sources.
2Scroll down to Menu #2.3. Enter the LNB
FREQUENCY then press SAVE.
3Scroll down to Menu #2.3.1. Enter the
SATELLITE FREQUENCY then press
SAVE.
4Scroll down to Menu #2.3.2. Enter the
SYMBOL RATE then press SAVE.
5Scroll down to Menu #2.3.3. Enter the
MODULATION and FEC RATES then
press SAVE.
6Scroll down to Menu #2.3.4. Enter the
LNB POWER and VOLTAGE settings
then press SAVE.
7Scroll down to Menu #2.3.5. Enter the
LNB 22 KHz setting then press SAVE.
8Scroll down to Menu #2.3.6. Enter the
SEARCH RANGE then press SAVE.
9Scroll down to Menu #2.2 and select
SOURCE 2. Repeat steps 2 through 8.
This sets up the LNB frequency for the selected Source in MHz.
This sets up the Satellite frequency for the selected Source in MHz.
Sets the symbol rate for the selected Source in megasymbols per
second.
This sets up the Modulation (QPSK, 8PSK, 16QAM) and FEC (1/2,
2/3, 3/4, 5/6, 7/8, 8/9) rates for the selected Source. The FEC
selection is limited to the valid values of the currently selected
modulation type.
Sets the LNB power for the selected Source (ON, OFF, BOOSTED).
BOOSTED provides 1V extra power over the ON setting. Also sets
the LNB voltage settings (18v – Horiz, 13v – Vert).
Enables or disables the LNB 22 kHz control tone for the selected
Source (On, Off).
This sets up the centre frequency Search Range for the selected
Source in KHz.
3.5.2 Decoder
Table 3.6: Setting Up the Decoder
StepActionResult
1Go to Menu #2.1 and select the required
input: 1, 2, or AUTO.
2Press SAVE to store the option.
This sets the ASI input source for the TT1260. If AUTO is chosen,
ensure that the signal is only routed to one connector at a time.
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Operating the Equipment Locally
3.6 Service Configuration (Menu #3)
3.6.1 Selecting a Service
Setting Up a Service
Each transport stream may contain many Services. Menu #3 allows a
Service to be chosen as current and the profile of i t s com p onents to b e
specified.
Table 3.7: Selecting a Service
StepActionResult
1Go to Menu #3.1 and select the required
Service.
The EDIT mode cannot be entered unless
there are available Services.
2Press SAVE.This stores the Service as the Current Service.
This page shows the total number of Services available in the
incoming transport stream. Use EDIT and the arrow pushbuttons to
select the required Service.
Setting Up the Power-up Service
Menu #3 allows a Service to be chosen as the Power-up default.
Table 3.8: Selecting a Power-up Service
StepActionResult
1Go to Menu #3.1 and select the required
Service (or last valid service).
2Press SAVE.This stores the service as the power-up service.
This sets the service to which the TT1260 configures on power-up.
3.6.2 Selecting the Video Component
Table 3.9: Selecting the Video Component
StepActionResult
1Go to Menu #3.4 and select the PID.Gains access to the Video Component menu.
2Scroll down to Menu #3.1.4 and edit the 525
line video output coding (NTSC-M, PAL-M,
NTSC-M NP) and the 625 line video output
coding (PAL-I, PAL-N, PAL-N CMB). Press
SAVE.
3Scroll down to Menu #3.1.5 and edit the
parameter for setting the default video line
standard (525 or 625) and the parameter for
setting the response to loss of video
(FREEZE FRAME, BLACK FRAME, NO
SYNCS). Press SAVE. Perform a system
restart (see Section 3.9 Restarting the Unit).
4Scroll down to Menu #3.1.6 and edit the
video test pattern to be displayed. Press
SAVE.
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Edits the 525 line video output coding and the 625 line video output
coding.
Edits the parameter for setting the default video line standard and
the parameter for setting the response to loss of video.
Edits the video test pattern to be displayed.
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Operating the Equipment Locally
5Scroll down to Menu #3.1.7 and edit the
parameter for framesync enable (ENABLED
or DISABLED). Press SAVE.
6Scroll down to Menu #3.1.8 and edit the
PAL framesync offset range (-199999 to
+199999 pixels) and the NTSC framesync
offset range (-199999 to +199999 pixels).
Press SAVE.
7Scroll down to Menu #3.1.9 and edit the
parameter for delaying 4:2:0 video (0 to
100ms) and the parameter for delaying 4:2:2
video (0 to 100ms). Press SAVE.
8Scroll down to Menu #3.1.10 and edit the
parameter for setting the video monitor
aspect ratio (4:3, 16:9) and video output
level (70 – 130%). Press SAVE.
9Scroll down to Menu #3.1.11 and edit the
embedded audio data ID (0X0 – 0xFFF) and
audio channel (NONE, ONE, TWO, or ONE
& TWO). Press SAVE.
10Scroll down to Menu #3.1.12 and edit the
first active video line (22 or 23) and the
parameter for enabling EDH output
(ENABLED or DISABLED). Press SAVE.
Edits the parameter for framesync enable.
Edits the PAL framesync offset range and the NTSC framesync
offset range.
Edits the parameter for delaying 4:2:0 video and the parameter for
delaying 4:2:2 video.
Edits the parameter for setting the video monitor aspect ratio and
video output level.
Edits the embedded audio data ID and audio channel.
Edit the first active video line and the parameter for enabling EDH
output.
3.6.3 Selecting the Audio Component
Introduction
Automatic audio component selection is based on component order in the
PMT as follows:
· Audio 1 selects the first component i n the P MT and Audio 2 selects the
second component.
· Audio 1 does not select the same component as Audio 2 and vice versa
when component-PIDs are reordered in a new PMT.
· Coding type and language are manually selectable through the user
interfaces by specifying the correct PID.
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Selecting the Audio Manually
It is possible to manually select any audio component from the active
service by using the front panel controls or via the remote control
interface. Select one of the audio components in the list or enter the
correct PID. Table 3.10 describes the procedure for selecting a comp onent
using a Satellite Receiver.
Table 3.10: Manually Selecting the Audio Components
StepActionResult
1Go to the Menu #3.2 and press EDIT. Select
one of the audio streams or enter an audio
PID.
2Scroll down to Menu #3.2 and edit the Audio
1 delay adjustment (range ± 0 to 49ms).
Press SAVE.
3Scroll down to Menu #3.2.3 and edit the
Audio 1 digital output format (IEC958 CON,
AES3, or IEC958 AC3) and output routing
(STEREO, MIXED TO BOTH, LEFT TO
BOTH, or RIGHT TO BOTH). Press SAVE.
4Scroll down to Menu #3.2.4 and edit the
clipping value (12 – 24 dB). Press SAVE.
5Scroll down to Menu #3.2.5 and edit the
AC-3 downmix parameter (SURROUND
STEREO or CONVENTIONAL STEREO)
Press SAVE.
6Go to the Menu #3.3 for Audio 2 and repeat
steps 2 through 4.
Selects the audio component.
Edits the Audio 1 delay adjustment.
Edits the Audio 1 digital output format and output routing.
Edits the clipping value.
Edits the AC-3 downmix parameter.
Selects the audio component.
3.6.4 Setting Up Async Data/Sync Data
These menu pages allow status monitoring and configurati on of the low
and high speed data.
NOTE…
When the High Speed RS-422 Data Enabler Card (S12595) is detected on power-up the unit will
recover high speed data. If it is not installed the unit will recover low speed data. The unit can recover
either low speed (RS-232) data or high speed (RS-422) data but not both simultaneously.
Table 3.11: Setting Up Async Data/Sync Data
StepActionResult
1Go to Menu #3.4 and press EDIT. Select the
data stream number.
2Scroll down to Menu #3.4.1 and edit the
low speed data output (ENABLED or
DISABLED). Press SAVE.
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Selects the data stream number.
The unit receives and displays the correct bit-rate.
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Operating the Equipment Locally
3.6.5 Setting Up Teletext
The teletext data is transmitted in teletext PES packets. It uses its own
PID to extract the teletext PES packets from the transport stream.
Table 3.12: Setting Up Teletext
StepActionResult
1Go to Menu #3.5 and press EDIT.Gains access to the Teletext insertion status.
2Scroll down to Menu #3.5.1 and edit the
insertion status (ENABLED or DISABLED).
Press SAVE.
3.6.6 Setting Up VBI
The video index data is transmitted in VBI (vertical blanking interval) PES
packets and is used in PAL and NTSC systems. One VBI PES packet can
contain one frame of video index d ata.
Table 3.13: Setting Up VBI
Edits the insertion status.
StepActionResult
1Go to Menu #3.6 and select the VBI PID.Selects the VBI PID to be edited.
2Scroll down to Menu #3.6.1 and edit the
parameter for enabling VPS pass through
(ENABLED or DISABLED). Press SAVE.
3Scroll down to Menu #3.6.2 and edit the
parameter for enabling WSS pass through
(ENABLED or DISABLED). Press SAVE.
4Scroll down to Menu #3.6.3 and edit the
parameter for enabling VITC pass through
(ENABLED or DISABLED). Press SAVE.
5Scroll down to Menu #3.6.4 and edit the
parameters for specifying the first and
second insertion lines for 525 VITC, and edit
the parameters for specifying the first and
second insertion lines for 625 VITC. Press
SAVE.
6Scroll down to Menu #3.6.5 and edit the
parameter for enabling Video Index pass
through (ENABLED or DISABLED). Press
SAVE.
7Scroll down to Menu #3.6.6 and edit the
parameter for enabling AMOL pass through
(ENABLED or DISABLED). Press SAVE.
8Scroll down to Menu #3.6.7 and edit the
parameter for enabling Closed Captions
pass through (ENABLED or DISABLED).
Press SAVE.
9Scroll down to Menu #3.6.8 and edit the
parameter for enabling ITS insertion
(ENABLED (CCIR), ENABLED (FCC/UK) or
DISABLED). Press SAVE.
Edits the parameter for enabling VPS pass through.
Edits the parameter for enabling WSS pass through.
Edits the parameter for enabling VITC pass through.
Edits the parameters for specifying the first and second insertion
lines for 525 VITC, and the parameters for specifying the first and
second insertion lines for 625 VITC.
Edits the parameter for enabling Video Index pass through.
Edits the parameter for enabling AMOL pass through.
Edits the parameter for enabling Closed Captions pass through.
Edits the parameter for enabling ITS insertion.
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3.6.7 Viewing the PCR PID Menu
Table 3.14: Viewing the PCR PID Menu
StepActionResult
Operating the Equipment Locally
1Go to Menu #3.7.
XXXX is the PCR PID
YYYYYYYYYY is (PRESENT or NOT
PRESENT)
Gains access to the PCR PID selection menu.
3.6.8 Viewing the Network ID Menu
Table 3.15: Viewing the Network ID Menu
StepActionResult
1Go to Menu #3.8.
XXXXX is the Network ID from the current
SDT (or ----- when SDT not available)
YYYYY is the Original Network ID from the
current SDT (or ----- when SDT not
available)
Gains access to the Network ID and the Original Network ID.
3.6.9 Setting Up the Conditional Access/Scrambling
(Menu #4)
Introduction
Menu #4 allows the status and configuration of the Conditional Access
(CA) module to be checked. The structure and content of this group
depends on the CA system. The available CA options are as follows:
· No Conditional Access
· Basic Interoperable Scrambling System (BISS) Mode-1 and Mode-E
only.
· VideoGuard Director and BISS
· Remote Authorisation System (RAS) and BISS
· VideoGuard Director, RAS and BISS
The Transport Stream command may require altering to accommodate the
installed CA software.
Remote Authorisation System (RAS) (Menu #4.1)
RAS has two levels of operation: FIXED KEY MO DE and DSNG KEY MO DE.
FIXED KEY MODE has a fixed control word to encrypt the data in the
transport stream. Some control words are reserved for use in the
TANDBERG Television DSNG E n cod er .
DSNG KEY MODE is used for fixed head-end systems. Its main functionality
is:
· Over-air addressing of Receivers for authorisation/de-authorisation to
decrypt the transmission
· Group operation for authorisation/de-authorisation.
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Operating the Equipment Locally
· Periodic control word changes during transmission.
VideoGuard, RAS and BISS
The process for setting this up is as for the RAS CA.
Changing the VideoGuard Customer ID (Menu #4.3.2)
The unit must be re-powered with the appropriate Smart Card installed
after the Customer ID has been changed.
Basic Interoperable Scrambling System (BISS) (Men u #4.4)
BISS mode 1 is similar to RAS in that it uses a fixed control word to
encrypt the data in the transport stream. Unlike RAS, the scrambling
algorithm is non-proprietary, using the DVB Common Scrambling
Algorithm to allow interoperability with other manufacturers’
encoding/scrambling equipment.
Table 3.16: Setting Up the Conditional Access
StepActionResult
1Go to Menu #4.
2Scroll down to Menu #4.1 and edit the RAS
mode (FIXED KEY MODE or DSNG KEY
MODE) and the DSNG key (7-digit number).
Press SAVE.
3Scroll down to Menu #4.2 and edit the Signal
Protection (ENABLED or DISABLED). Press
SAVE.
4Scroll down to Menu #4.3 and edit the
Videoguard Customer ID, the NCP Lock
Override Pin (4-digit number), and the Reset
Lock Override Pin (13-digit number). Press
SAVE.
5Scroll down to Menu #4.4 and edit the BISS
mode (1, E FIXED, E TTV, E USER ONE, or
E USER TWO) and the 48 or 64-bit control
word key (12-digit number). Press SAVE.
6Scroll down to Menu #4.4.1 and edit the 56-bit
control word for BISS E user ID One (14-digit
number) and the 56-bit control word for BISS
E user ID Two (14-digit number). Press
SAVE.
7Scroll down to Menu #4.6 and edit the
Transport Stream Output (ENCRYPTED,
PARTIALLY DECRYPTED, or DECRYPTED)
Press SAVE.
Gains entry into the Conditional Access menu.
Edits the RAS mode and the DSNG key.
Edits the Signal Protection.
Edits the Videoguard Customer ID and the NCP Lock Override Pin and
the Reset Lock Override Pin.
Edits the BISS mode and the 48 or 64-bit control word key.
Edits the 56-bit control word for BISS E user ID One and the 56-bit
control word for BISS E user ID Two.
Edits the Transport Stream Output.
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3.6.10 Setting up the Transport Stream Output (TSO)
Set-up Procedure
Use Table 3.5 to step through the set up procedure of the Satellite
Receiver using Menu #2.
Use Table 3.17 to step through the Transport Stream Output set up
procedure using Menu #4. This allows the transport stream for the current
service to bypass the CA module on its way to the TSO module.
Table 3.17: Setting up the Transport Stream Output (TSO)
StepActionResult
1Go to Menu #4.6 to enter the TRANSPORT
STREAM OUTPUT setting.
2Press EDIT then select one of the following:
ENCRYPTED (ie input transport stream);
PARTIALLY DECRYPTED (ie post TTV &
RAS);
DECRYPTED (ie post TTV, RAS, Common
Interface BISS, DIRECTOR)
3Press SAVE to store the choice.The Transport Stream Output (TSO) is now set.
Edits the Transport Stream Output.
The Transport Stream Output will be formatted according to the choice
made.
Packet Lengths
The output is an MPEG-2 bit-stream fr om the received services. The packet
lengths input is 188/204/208; the output is 188.
· Spread mode in = > spread mode out.
· Burst mode in = > burst mode out (except when the TSO is set to
DECRYPTED in step 2 in Table 3.17. Then the output is always
bursted).
ASI Output Mode
· The output mode depends on the input mode. If the input mode is SPI,
the ASI output is byte-mode. If the input is ASI, the ASI output is
single packet burst mode.
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3.7 Setting Up the Alarms (Menu #5)
Menu #5 allows a selection of Alarms to be edited.
Table 3.18: Setting up the Alarms
StepActionResult
1Go to Menu #5.
2Scroll down to Menu #5.1 and edit the BIT
ERROR RATE range (9.9 E-1 to 1.0 E-8) and
status (NO ALARM, SET ALARM ONLY, SET
ALARM AND RELAY 1, SET ALARM AND
RELAY 2, SET ALARM AND RELAY 3, SET
ALARM AND RELAY 4, SET ALARM AND
RELAY 5, SET ALARM AND RELAY 6, SET
RELAY 1 ONLY, SET RELAY 2 ONLY, SET
RELAY 3 ONLY, SET RELAY 4 ONLY, SET
RELAY 5 ONLY, or SET RELAY 6 ONLY ).
Press SAVE.
2Scroll down to Menu #5.2 and edit the
TRANSPORT STREAM menu (NO ALARM,
SET ALARM ONLY, SET ALARM AND
RELAY 1 – 6, SET RELAY 1 – 6 ONLY).
Press SAVE.
3Scroll down to Menu #5.3 and edit the VIDEO
menu (NO ALARM, SET ALARM ONLY, SET
ALARM AND RELAY 1 – 6, SET RELAY 1 – 6
ONLY). Press SAVE.
4Scroll down to Menu #5.4 and edit the
AUDIO 1 menu (NO ALARM, SET ALARM
ONLY, SET ALARM AND RELAY 1 – 6, SET
RELAY 1 – 6 ONLY). Press SAVE.
5Scroll down to Menu #5.5 and edit the
AUDIO 2 menu (NO ALARM, SET ALARM
ONLY, SET ALARM AND RELAY 1 – 6, SET
RELAY 1 – 6 ONLY). Press SAVE.
Accesses the Alarms menu.
Edits the BER alarms menu.
Edits the Transport Stream alarms menu.
Edits the Video alarms menu.
Edits the Audio 1 alarms menu.
Edits the Audio 2 alarms menu.
3.8 Setting Up System Parameters (Me nu # 6)
This menu gives access to the Setup Menu to set up and edit System
Parameters as well as the IRD Details menu (see Table 3.20).
Table 3.19: Setting Up a System
StepActionResult
1Go to Menu #6.
2Scroll down to Menu #6.1 and edit the
Operating Mode (FRONT PANEL, SERIAL
REMOTE or DIRECTOR NCP). Press SAVE.
3Scroll down to Menu #6.1.1 and edit the LCD
Contrast (LOW, MEDIUM or HIGH). Press
SAVE.
4Scroll down to Menu #6.1.3 and edit the IP
Address. Press SAVE.
Page 3-16Instruction Manual: TT1260 Standard Definition Professional Receiver/Decoder
Accesses the System menu.
Edits the Operating Mode menu.
Edits the LCD Contrast.
Edits the IP Address.
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StepActionResult
Operating the Equipment Locally
5Scroll down to Menu #6.1.4 and edit the
Subnet Mask. Press SAVE.
6Scroll down to Menu #6.1.5 and
activate/deactivate the Restore system
defaults. Press SAVE.
7Scroll down to Menu #6.1.6 and edit the
Service Hunt Mode (ENABLED or
DISABLED). Press SAVE.
8Scroll down to Menu #6.1.7 and edit the
Customisation Key. Press SAVE.
Edits the Subnet Mask.
Edits the Restore System Defaults menu.
Edits the Service Hunt Mode menu.
Edits the Customisation Key menu.
Table 3.20: Viewing the IRD Details Menu
StepActionResult
1Go to Menu #6.2.
2Scroll down to Menu #6.2.1.Displays the Firmware Version.
3Scroll down to Menu #6.2.2.Displays the Hardware Version.
4Scroll down to Menu #6.2.3.Displays the PLD Version.
5Scroll down to Menu #6.2.4.Displays the Electronic Serial Number.
Accesses the IRD Details Menu and displays the Software Version.
3.9 Restarting the Unit
The System Restart submenu all ows the user to reboot the unit without
having to remove and insert the power cable.
Table 3.21: System Restart Menu
StepActionResult
1Go to Menu #6.3.
2Press Edit.ACTIVATE will be displayed.
3Press Save to activate.Unit is restarted.
Accesses the System Restart menu.
3.10 Setting up Preset Services (Menu #1)
3.10.1 Using Preset Services
This group allows up to 40 services to be stored as presets. Selecting a
Service from the preset list in Menu #1 automatically reconfigures the
TT1260 to receive that Service with its associated parameters set as
stored.
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3.10.2 Setting up a Preset Service
Follow the steps in Table 3.22 to store the current Service as a preset.
Table 3.22: Setting up a Preset Service
StepActionResult
1Use the menus to set up the unit so that the
required Service is current.
(Refer to Sections 3.5 and 3.6)
2Go to Menu #1 to view the Preset menu.This displays the menu which allows the Current Service to be
3Select a location to store the preset.
The EDIT mode cannot be entered unless a
valid Service being decoded.
4Press SAVE.This stores the current Service and its associated parameters
This selects the Service and associated parameters for the
preset process.
stored at a chosen location (01 – 40). If there is no Current
Service, the menu display reads NO STORED SERVICE.
Use EDIT and the arrow pushbuttons to step through the stored
items. This allows a specific location to be chosen. Any vacant
locations are marked by NO STORED SERVICE.
as a preset in the selected location. This adds the Service to the
list displayed on page 1.
NOTE…
It is possible to store a service to a preset unless that service is being received (including all the
required components such as video, audio, data, VBI, etc.
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Figure 4.1: Front Panel LEDs........................................................4-3
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Alarms
BLANK
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4.1 Introduction
There are two Front Panel LEDs that indicate the status of the TT1260.
These are used to indicate abnormal performance of the unit.
4.2 Location of the Alarm and Indication LEDs
The red ALARM LED is used to indicate an equipment fault condition, for
example a missing or faulty input signal . It should be off during correct
operation, although it may be lit briefly during power-up.
The green LOCK LED is used to indicate that the equipment is locked to a
transport stream when lit, and indicates correct conditions and correct
system functioning.
Alarm LED
Alarms
Figure 4.1: Front Panel LEDs
4.3 ALARM LED
The TT1260 supports a summary alarm signal that is active when one or
more of the individual monitored alarm conditions are active. It allows
masking of unwanted alarm conditions so that they do not contribute to
the summary alarm. Configuration of alarms is vi a the Front Panel and
remote control interfaces. The state of the summary alarm is reflected by
the ALARM LED on the front panel where red represents an alarm, and off
represents no alarm.
This LED provides a high-level indication of an alarm within the unit. The
alarm list depends on the TT1260 model. The unit continuously monitors
for the following alarm conditions during normal operation: (if not masked
– see Menu #5, Annex C, Menus):
· No transport stream
· Video not running
· Audio 1 not running
· Audio 2 not running
Lock LED
It is possible to signal additional alarms depending on the transport stream
input type and optional functionality in the unit.
Satellite inputs:
· Bit Error Rate (BER) above (programmable) threshold
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Alarms
4.4 Relays
In addition to the one summary alarm, there is an Alarm Rel ay Card
(TT1260/HDC/ALRM) with additional six relays. The alarm relays are
programmable to reflect the state of one or more of the individual
monitored alarm conditions. As alarm conditions may be of very short
duration (i.e. less than the time required to acti vate a relay) the software
ensures that any alarm condition is signal led for a minimum of one second.
The relay electrical characteristics are as follows:
All relays are configured as Single Pole Change-over Relays, with all three
contacts per relay available at the output connector. The contacts of each
relay are fully isolated from each other, and from chassis ground.
All relays are energised in the non-alarm condition, such that an alarm is
indicated upon power failure. If power returns to the unit, the alarms
should not re-energise until system boot is complete, and the alarm
condition of the various components has successfully been cleared.
See Section C.8, Alarms Menu (#5) for a complete summary of alarm
status information.
NOTE…
The Alarm Relay Card (TT1260/HDC/ALRM) is a standard component in the TT1260/DIRBAS base
unit.
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Options
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5.1 Option Card Locations
The functionality can be enhanced with the inclusion of option cards. Each
card consists of a horizontally mounted PCB with rear panel connector(s).
The cards are fitted into the positions in dicated in Table 5.1.
The ASI Input Card provides DVB-compliant ASI inputs for the TT1260
Decoder.
5.2.2 Rear Panel View
Figure 5.2: ASI Input Card Rear Panel
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Options
5.2.3 Connector Details
Provides a DVB-complia nt copper connecti on.
The input supports both byte-mode and single
packet burst mode and is activated through the
Input Menu (#2). The specification for these
connectors are given in Section B.4.3.
Table 5.2: DVB-ASI Copper Connector (2 off)
ItemSpecification
Connector typeBNC 75 W socket
Connector designationsASI IN 1
ASI IN 2
Cable specificationCapable of transmitting a maximum frequency of 850 MHz
PinCentre
Shield
Signal
Ground/Chassis
ASI IN 1/2
5.3 QPSK Input Card (TT1260/HWO/QPSK)
5.3.1 General
The QPSK Input Card supports QPSK demodulation for Satellite Receivers
with two L-band inputs.
5.3.2 Rear Panel View
Figure 5.3: QPSK Input Card Rear Panel
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5.3.3 Connector Details
L-band Inputs
Connect the L-band output of a suitable LNB to
the F-type connector either directly or via a
suitable attenuator giving adequate consideration
to lightning and surge protection – refer to
Section 2.3.4, Outdoor Antenna. The active input
is chosen using the Input Status Menu (#2).
In most cases an attenuator will not be required.
The following list sum m arises the circumstances
when one should be used.
When the desired input level is greater than the
specified maximum permissible
(-25 dBm).
When the downlead is a short length of low-loss
cable and the LNB in use has a poor return loss
(7 dB min).
Options
QPSK IN 1/2
When the Receiver is receiving one of many
carriers in a multi-carrier FDM system and the
level of the wanted sig nal is close to the specified
maximum permissible.
Connector typeF-type, Female
Connector designationQPSK IN 1
QPSK IN 2
Pin:Centre
Shield
LNB SupplyRefer to Caution box below
Impedance75 W
1. The Receiver provides dc power (refer to Chapter 3, Operating the Equipment Locally) via the active
L-band input connector to drive an LNB (Low Noise Block Down-Converter). Do not connect
equipment other than an LNB to this connector. Failure to do this may result in damage to the
external equipment.
2. The F-type connector is not suitable for repeated connection and disconnection. When intended for
use in this way, fit a sacrificial connector and connect to it.
RF Input
Ground/Chassis
CAUTIONS...
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Options
Audio Outputs
A pair of 9-way female D-type connectors provide
two stereo channels. Each connector carries a
single channel of a stereo pair in both analogue
and digital form. The output can be varied
according to service and unit configuration.
Audio control is through the Service Menu
(#3). The specification for this connector is given
in Annex B, Section B.5.2, Audio Outputs.
Nominal output impedance50 W
Maximum data rate3.072 Mbit/s
Output level+18 dBm nominal clipping level. Selectable in range 12 to
Load impedance³600 W balanced
Pin 1 ¾ Digital bit-stream
Pin 2 ¾ Ground
Pin 3 ¾ Left +
Pin 4 ¾ Right +
Pin 5 ¾ Ground
Pin 6 ¾ Reserved
Pin 7 ¾ Ground
Pin 8 ¾ Left Pin 9 ¾ Right -
+24 dBm.
AUDIO 1 / 2
5.4 8PSK/16QAM Card (TT1260/HWO/HM )
5.4.1 General
The 8PSK/16QAM Card supports QPSK, 8PSK and 16QAM demodulation for
Satellite Receivers with two L-band inputs. It is a complete digital card for
DVB-S, DSNG and other contribution applications and supports two L-band
inputs.
It is fully DVB - S (EN 300-421) and DVB - DSNG (EN 301 210) compliant,
and performs baseband down-conversion, digital demodulation and
decoding of an L-band input signal.
5.4.2 Rear Panel View
Figure 5.4: 8PSK/16QAM Card Rear Panel
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5.4.3 Connector Details
The active input is chosen using the Input Status
Menu (#2). The specification for this connector is
given in Annex B,Section B.4.2, 8PSK/16QAM
Satellite Receivers.
Table 5.5: 8PSK/16QAM Card Connectors
InputSpecification
Connector typeF-type, Female
Connector designationQPSK/8PSK/16QAM IN 1
QPSK/8PSK/16QAM IN 2
Pin:Centre
Shield
LNB SupplyRefer to Caution box below
Impedance75 W
RF Input
Ground/Chassis
Options
QPSK/8PSK/16QAM IN 1/2
CAUTIONS...
1. The Receiver provides dc power (refer to Chapter 3, Operating the Equipment Locally) via the
active L-band input connector to drive an LNB (Low Noise Block Down-Converter). Do not connect
equipment other than an LNB to this connector. Failure to do this may result in damage to the
external equipment.
2. The F-type connector is not suitable for repeated connection and disconnection. When intended for
use in this way, fit a sacrificial connector and connect to it.
5.5 High Speed RS-422 Data Enabler C ard
(TT1260/HWO/HSDATA)
5.5.1 General
The High Speed RS-422 Data Enabler Card provides RS-422 data output
when there are PIDs carrying high speed data in the incoming transport
stream.
High-speed data (synchronous data) can be carried in a transport stream
as private data. This is then extracted from the transport stream and
output from the IRD via the RS-422 interface. Data-rates in integer
multiples of 56 kbit/s and 64 kbit/s up to 2.048 Mbit/s (subject to the
number and type of services in the multiplex) are output on a 9-pin
D-type connector.
NOTE…
When the High Speed RS-422 Data Enabler Card (S12595) is detected on power-up the unit will
recover high-speed data. If not installed the unit will recover low-speed asynchronous data. The
TT1260 can recover either low speed (RS-232) data or high speed (RS-422) data but not bothsimultaneously. For technical specifications see Section B.5.3, Data Outputs.
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Options
5.5.2 Rear Panel View
Figure 5.5: High Speed RS-422 Data Enabler Card Rear Panel
5.5.3 Connector Details
High-speed data (synchronous data) is
carried in a transport stream as private data.
The specification for this connector is given
in Annex B,Section B.5.3, Data Outputs.
Table 5.6: RS-422 Synchronous Data Output Specification
DATA OUT
ItemSpecification
Type:ITU-T V.11 (RS-422) synchronous serial data
Connector designation:DATA OUT
Connector type:9-way, D-type, Female
Supported data rates:Multiples of 56 kbit/s and 64 kbit/s up to 2.048 Mbit/s
Transport package alignment:Transparent to data source. Port operates as a bit-pipe.
ConfigurationDCE
Pin-outsPin 1 ¾ GND
Pin 2 ¾ Data Pin 3 ¾ Clock +
Pin 4 ---- Not Used
Pin 5 ¾ GND
Pin 6 ¾ GND
Pin 7 ¾ Data +
Pin 8 ¾ Clock Pin 9 ¾ Not Used
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Options
5.6 QPSK/8PSK/16QAM (TT1260/SWO/16QA M )
This option provides a software key license for TT1260/HWO/HM, enabling
QPSK, 8PSK, and 16QAM.
The key is downloaded via the Ethernet or entered v ia the front panel
System Menu (#6), (see Annex C,Section C.9, System Menu). When th e
key is downloaded, hidden functionality in the software is unlocked.
Contact TANDBERG Television Customer Services (refer to
Contact Information on page vii, Preliminary Pages).
5.7 QPSK/8PSK (TT1260/SWO/8P SK)
This option provides a software key license for TT1260/HWO/HM, enabling
QPSK and 8PSK.
The key is downloaded via the Ethernet or entered v ia the front panel
System Menu (#6), (see Annex C,Section C.9, System Menu). When th e
key is downloaded, hidden functionality in the software is unlocked.
Contact TANDBERG Television Customer Services (refer to
Contact Information on page vii, Preliminary Pages).
5.8 Signal Protection Conditional Access
(TT1260/SWO/SP)
This option provides a software k ey to enab le Signal Protection Conditional
Access.
The key is downloaded via the Ethernet or entered v ia the front panel
System Menu (#6), (see Annex C,Section C.9, System Menu). When th e
key is downloaded, hidden functionality in the software is unlocked.
Contact TANDBERG Television Customer Services (refer to
Contact Information on page vii, Preliminary Pages).
This option provides a software key to enable RAS Mode-1 Conditional
Access.
The key is downloaded via the Ethernet or entered v ia the front panel
System Menu (#6), (see Annex C,Section C.9, System Menu). When th e
key is downloaded, hidden functionality in the software is unlocked.
Contact TANDBERG Television Customer Services (refer to
Contact Information on page vii, Preliminary Pages).
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Options
5.10 VideoGuard Director CA/TANDBERG Director
NCP (TT1260/SWO/DIR)
This option provides a soft ware key to enable VideoGuard Director
CA/TANDBERG Director NCP.
The key is downloaded via the Ethernet or entered v ia the front panel
System Menu (#6), (see Annex C,Section C.9, System Menu). When th e
key is downloaded, hidden functionality in the software is unlocked.
Contact TANDBERG Television Customer Services (refer to
Contact Information on page vii, Preliminary Pages).
5.11 BIS S-1/BISS-E (TT1260/SWO/BIS S )
This option provides a software key to enable BISS-1/BISS-E.
The key is downloaded via the Ethernet or entered v ia the front panel
System Menu (#6), (see Section C.9, System Menu). When the key is
downloaded, hidden functionality in the software is unl ocked.
Contact TANDBERG Television Customer Services (refer to
Contact Information on page vii, Preliminary Pages).
5.12 XLR Cabl e ( TT1260/C A B LE/XLR)
The XLR Cable can be used for each of the two 9-pins D-type audio output
connectors on the TT1260. It has a 9-pin D-type audio connector on one
end and three XLR connectors on the other end.
Table 5.7: XLR Cable
ConnectionOuter Marking
Right ChannelBALANCED AUDIO RIGHT
Left ChannelBALANCED AUDIO LEFT
DigitalBALANCED DIGITAL AUDIO
Pin 2 ¾ Not used
Pin 3 ¾ Left Channel pin 2 +
Pin 4 ¾ Right Channel pin 2 +
Pin 5 ¾ Not used
Pin 6 ¾ Digital pin 3 Pin 7 ¾ Not used
Pin 8 ¾ Left Channel pin 3 Pin 9 ¾ Right Channel pin 3 -
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Preventive Maintenance and Fault-finding
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6.1 Routine Checks
6.1.1 Cooling Fan
There are no routine checks associated wi th this equipment other than to
ensure that the unit is adequately cooled . This equipment must never be
operated unless the cooling fan is working; this should be checked
periodically.
The fan contained within this unit is not fitted with an insect/dust filter. Pay particular attention to the
environment in which it is going to be used.
Preventive Maintenance and Fault-finding
CAUTION...
Cooling Fan
Figure 6.1: Cooling Fan Location
6.1.2 Cleaning
Unplug the equipment from the sup p ly before cleaning. Do not use liquid
or aerosol cleaners. Use a damp cloth for cleaning the exterior of the
Receiver.
6.2 Servicing
6.2.1 Conditions Requiring Servicing
WARNING
DO NOT ATTEMPT TO SERVICE THIS PRODUCT AS OPENING OR REMOVING COVERS MAY
EXPOSE DANGEROUS VOLTAGES OR OTHER HAZARDS. REFER ALL SERVICING TO SERVICE
PERSONNEL WHO HAVE BEEN AUTHORISED BY TANDBERG TELEVISION.
The following is a list of conditions that may indicate the need for
servicing:
1. When the power supply cord or plug is damaged.
2. If liquid has been spilled, or objects have fallen into the product.
3. If the product has been exposed to rain or water.
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Preventive Maintenance and Fault-finding
4. If the product does not operate normally by following the operating
instructions. Adjust only those controls that are covered by the
operating instructions, as an improper adjustment of other controls may
result in damage and will often require extensive work by a qualified
technician to restore the product to its normal operati on.
5. If the product has been dropped or the case has been damaged.
6. When the product exhibits a distinct change in performance.
7. If the equipment has been subject to a lightning strike or power surge.
6.2.2 Replacement Parts
When replacement parts are required, be sure only parts specified by
TANDBERG Television Ltd (or having the same characteristics as the
original part) have been used. Unauthorised substitutions may result in
fire, electric shock or other hazards.
6.2.3 Checks on Completion of Servicing
Upon completion of any servi ce or repa irs to this product, ask the service
technician to perform safety checks to determine that the product is in a
safe operating condition. Also, performance and EMC checks may be
required.
6.3 Maintenance and Support Services - Warranty
The equipment is covered by a standard TANDBERG Television Ltd
warranty service for a period of 12 months from delivery.
The warranty covers the following:
· All material defects in the equipment for a period of 12 months
· All parts and labour charges
· All returned items will be repaired within 30 working days from receipt
at the customer care centre
· Return of the repaired item to the customer, postag e p a id
· Provide assistance to the customer through the Customer Help Line
number (see the Customer Services information at the front of this
manual)
The warranty does not cover any engineering visit(s) to the customer’s
premises.
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6.4 Fault-finding
6.4.1 General
The information contained in this chapter is intended to isolate the unit as
the faulty equipment if a system failure occurs. If the following information
fails to clear the abnormal condition, please contact Customer Services
using the information given in the Preliminary Pages of this manual.
6.4.2 Factory Default Settings
TT1260 are dispatched with the factory defaults shown in Annex F. These
can be restored at any time using System Menu (#6).
6.4.3 Preliminary Investigations
1. Ensure all leads and connectors are in place and servi ceable.
2. Ensure the unit is powered. If not investigate the power source.
Check the fuse.
3. Ensure the red alarm LED on the front of the unit is not lit. If it is,
investigate the Alarm status (see Chapter 4, Alarms).
4. Use the BER display to ensure that the Post Viterbi BER is l ess than 2.0
E-4 (refer to Section C.5.2). If it is not, check the input to the
Receiver.
Preventive Maintenance and Fault-finding
6.4.4 Remote Control
The TT1260 remote control input operates with both RS-232 and RS-485
serial data formats (Menu #6.1.2).
CAUTION…
Be sure to set the correct format and address via the front panel before attempting to use this input. The
TT1260 will ignore any remote control commands if the input is not correctly set.
6.5 Changing the Equipment Fuse
CAUTION...
This product should be operated only from the type of power source indicated on the marking label. If
you are not sure of the type of power supply to your home or business, consult your appliance dealer or
local power company. For products intended to operate from battery power, or other sources, refer to the
operating instructions.
The power supply used in this equipment is a wide-ranging, ac power
supply unit designed for use in ambient air temperature conditions of 0°C
to +45°C for 100-120 Vac and 220-240 Vac, 50-60 Hz (see Annex B,Technical Specification for details). There are no links or switches to be
altered for operation from different ac supplies.
The TT1260 is designed for User Accessible Fuse Replacement.
In addition to the fuse in the supply cable plug (if appropriate) there is a
fuse held in an integral fuse carri er at the ac power i nlet at the rear of the
TT1260.
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Preventive Maintenance and Fault-finding
A
r
Table 6.1: Fuse Information
ItemSpecification
FuseSingle pole, fitted in live conductor in power input filter at rear of unit.
Fuse type5 mm x 20 mm anti-surge (T) HBC, IEC127 (sheet v)
Fuse rating1.6 A, 250 Vac
To replace the ac power fuse perform the following:
BEFORE REPLACING THE REAR PANEL FUSE, DISCONNECT THE EQUIPMENT FROM THE
SUPPLY. FAILURE TO DO THIS MAY EXPOSE HAZARDOUS VOLTAGES. UNPLUG THE
1. Ensure that power is turned off and the power cable is disconnected
from the ac power inlet.
2. Ease out the fuse carrier by placing a small, fl at-bladed screwdriver in
the notches at the sides of the carrier.
When replacing the power input fuse, always ensure that a fuse of the correct type and rating is fitted.
WARNING…
EQUIPMENT FROM THE LOCAL SUPPLY SOCKET.
CAUTION...
Failure to do so results in inadequate protection.
3. Replace the fuse in the carrier.
4. Insert the fuse carrier back in the ac power inlet.
C Power Inlet
Fuse Carrie
To access the fuse, ease out the notch
with a small flat-blade screwdriver.
Figure 6.2: Fuse Carrier
If the replacement fuse also blows, do not continue. Disconnect the
equipment and contact TANDBERG Customer Services (see Preliminary
Pages) for advice.
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6.6 Disposal
6.6.1 Moulded Plugs
If the moulded plug fitted to the mains cable supplied with this equipment
is not required, use another cable. If the supplied plug is to be changed cut
it off and dispose of it safely.
IF THE MOULDED PLUG FITTED TO THE MAINS CABLE SUPPLIED WITH THIS EQUIPMENT IS
NOT REQUIRED, PLEASE CUT IT OFF AND DISPOSE OF IT SAFELY. FAIL URE TO DO THIS MAY
ENDANGER LIFE AS LIVE ENDS MAY BE EXPOSED IF THE REMOVED PLUG IS INSERTED INTO
6.6.2 Equipment
Dispose of this equipment saf ely at the end of its lif e. Local codes and/or
environmental restrictions may affect its disposal. Check with your local
authority.
Preventive Maintenance and Fault-finding
WARNING...
A MAINS OUTLET.
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Annex A
A. Glossary
The following list covers most of the abbreviations, acronyms and terms used in
TANDBERG Television Limited Manuals. All terms may not be included in this manual.
mmMicrometre (former name - micron): a unit of length equal to one millionth (10
3:2 pulldownA technique used when converting film material (which operates at 24 pictures per second) to 525-line video
(operating at 30 pictures per second).
4:2:0Digital video coding method in which the colour difference signals are sampled on alternate lines at half the
luminance rate.
4:2:2
422P@ML422 Profile at Main Level: A subset of the MPEG-2 standard, which supports digital video storage (DVD etc.) and
5B6B5 Binary Bits Encoded to 6 Binary Bits: Block code.
AC-3Audio Coding algorithm number 3 (See Dolby Digital).
ACCAuthorisation Control Computer.
ADPCMAdaptive Differentia l Pulse Code Modulation: An advanced PCM technique that reduces the bit-rate by coding
ADTAudio, Data And Telet ext.
AFCAutomatic Frequency Control.
AFSAutomation File Server.
AGCAutomatic Gain Control.
AMOL I and IIAutomatic Measure of Line-ups I and II: Used by automated equipment to measure programme-viewing ratings.
ASIAsynchronous Serial Interface.
ASICApplication-Specific Integrated Circuit: A customised chip designed to perform a specific function.
AsyncAsynchronous.
ATM
ATSCAdvanced Television Standards Committee: An organisation founded in 1983 to research and develop a digital
Digital video coding method in which the colour difference signals are sampled on all lines at half the luminance
rate.
transmissions up to 50 Mbit/s over various mediums. Used for Contribution and Distribution applications.
the difference values between successive samples rather than the absolute value of each sample.
Asynchronous Transfer Mode: A connection orientated, cell based, data transport technology designed for
Broadband ISDN (B-ISDN). It provides a circuit-switched bandwidth-on-demand carrier system, with the flexibility
of packet switching. It offers low end-to-end delays and (negotiable on call set-up) Quality of Service guarantees.
Asynchronous refers to the sporadic nature of the data being transmitted. Cells are transmitted only when data is
to be sent; therefore the time interval between cells varies according to the availability of data.
TV standard for the U.S.A. In late 1996, the FCC adopted the ATSC standard, the digital counterpart of the NTSC
standard.
-6
) of a metre.
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Glossary
B3ZSBipolar with Three Zero Substi tution: A method of eliminating long zero strings in a transmission. It is used to
ensure a sufficient number of transitions to maintain system synchronisation when the user data stream contains
an insufficient number of 1s to do so. B3ZS is the North American equivalent of the European HDB3.
Backward CompatibilityRefers to hardware or software that is compatible with earlier versions.
BAT
Bouquet Associ ation Table: Part of the service information data. The BAT provides information about bouquets.
It gives the name of the bouquet and a list of associated services.
baud rateThe rate of transfer of digital data when the data comprises information symbols that may consist of a number of
possible states. Equivalent to bit-rate when the symbols only have two states (1 and 0). Measured in Baud.
BERBit Error Rate: A measure of transmission quality. The rate at which errors occur in the transmission of data bits
over a link. It is generally shown as a negative exponent, (e.g. 10
-7
means that 1 in 10,000,000 bits are in error).
BISSBasic Interoperable Scrambling System: Non-proprietary encryption from EBU (Tech3290).
BISS-EBasic Interoperable Scrambling System: with Encrypted keys.
Bit-rateThe rate of transfer of digital data when the data comprises two logic states, 1 and 0. Measured in bit/s.
Block; Pixel Block
An 8-row by 8-column matrix of luminance sample values, or 64 DCT coefficients (source, quantised, or
dequantised).
BouquetA collection of services (TV, radio, and data, or any combination of the three) grouped and sold together, and
identified in the SI as a group. A single service may be in several bouquets.
B-Picture; B-FrameBi-directionally Predictive Coded Picture/Frame: A picture that is coded using motion-compensated prediction
from previous I or P frames (forward prediction) and/or future I or P frames (backward prediction). B frames are not
used in any prediction.
BPSKBinary Phase Shift Keying: A data modulation technique.
BufferA memory store used to provide a consistent rate of data flow.
BWBandwidth: The transmission capacity of an electronic line such as (among others) a communications network,
computer bus, or broadcast link. It is expressed in bits per second, bytes per second or in Hertz (cycles per
second). When expressed in Hertz, the frequency may be a greater number than the actual bits per second,
because the bandwidth is the difference between the lowest and highest frequencies transmitted. High bandwidth
allows fast transmission or high-volume transmission.
Byte-modeEach byte is delivered separately in the ASI Transport Stream, with stuffing data added between the Bytes to
increase the data rate to 270 Mbit/s. See DVB Document A010 rev. 1, Section B3.3, (ASI) Layer-2 Transport
Protocol.
CAConditional Access: The technology used to control the access to viewing services to authorised subscribers
through the transmission of encrypted signals and the programmable regulation of their decryption by a system
such as viewing cards.
CAT
Conditional Access Table: Part of the MPEG-2 Program Specific Information (PSI) data. Mandatory for MPEG-2
compliance if CA is in use.
C-BandThe portion of the electromagnetic spectrum, which spans the frequency range of approximately 4 GHz to 6 GHz.
Used by communications satellites. Preferred in tropical climates because it is not susceptible to fading.
CCIRSee: ITU-R.
CCITTSee: ITU-T.
ChannelA narrow range of frequencies, part of a frequency band, for the transmission of radio and television signals
without interference from other channels.
In the case of OFDM, a large number of carriers spaced apart at precise frequencies are allocated to a channel.
Channel CodingA way of encoding data in a communications channel that adds patterns of redundancy into the transmission path
in order to improve the error rate. Such methods are widely used in wireless communications.
ChrominanceThe colour part of a TV picture signal, relating to the hue and saturation but not to the luminance (brightness) of
the signal. In a composite-coded colour system, the colour information (chrominance, often referred to as
chroma) is modulated onto a high frequency carrier and added to the monochrome-format video signal carrying
the luminance (Y). In a component-coded colour system, the two colour-difference signals (R-Y)(B-Y) usually
referred to as C
added to the luminance
(digital) or PRPB (analogue), are used to convey colour information. When CRCB (PRPB) is
RCB
(Y), the complete picture information is conveyed as YCRCB (YPRPB).
Closed CaptioningA TV picture subtitling system used with 525-line analogue transmissions.
CODECreate Once Distribute Everywhere.
CodecThe combination of an Encoder and a complementary Decoder located respectively at the input and output of a
transmission path.
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COFDMCoded OFDM: COFDM adds forward error correction to the OFDM transmission consisting of Reed-Solomon
(RS) coding followed by convolutional coding to add extra bits to the transmitted signal. This allows a large number
of errors at the receive end to be corrected by convolutional (Viterbi) decoding followed by RS decoding.
Compression
Reduction in the number of bits used to represent the same information. For the purposes of a broadcast system,
it is the process of reducing digital picture information by discarding redundant portions of information that are not
required when reconstituting the picture to produce viewing clarity. Compression allows a higher bite-rate to be
transmitted through a given bandwidth.
Compression System
Responsible for compressing and multiplexing the video / audio / data bit-streams, together with the authorisation
stream. The multiplexed data stream is then ready for transmission.
CRC
B
Digital Colour difference signals. These signals, in combination with the luminance signal (Y), define the colour
and brightness of each picture element (pixel) on a TV line. See: Chrominance
CRCCyclic Redundancy Check: A mathematical algorithm that computes a numerical value based on the bits in a
block of data. This number is transmitted with the data and the receiver uses this information and the same
algorithm to ensure the accurate delivery of data by comparing the results of algorithm and the number received. If
a mismatch occurs, an error in transmission is presumed.
CVCTCable Virtual Channel Table (ATSC).
dBDecibels: A ratio of one quantity to another using logarithmic scales to give results related to human aural or
visual perception. dB is a ratio whereas dBm, for example, is an absolute value, quoted as a ratio to a fixed point
of 0 dBm. 0 dBm is 1 mW at 1 kHz terminated in 600Ω. 0 dBmV is 1 mV terminated in 75Ω.
DCEData Communications Equipment: Typically a modem. It establishes, maintains and terminates a session on a
network but in itself is not the source (originator) or destination (end receiving unit) of signals (e.g. a computer, see
DTE). A DCE device may also convert signals to comply with the transmission path (network) format.
DCT
Discrete Cosine Transform: A technique for expressing a waveform as a weighted sum of cosines. Raw video
data is not readily compressible. DCT is not in itself a compression technique but is used to process the video data
so that it is compressible by an encoder. DCT processes the picture on an 8x8-pixel block basis, converting the
data from an uncompressible X Y form (as displayed by an oscilloscope) to a compressible frequency domain form
(as displayed by a spectrum analyser). Can be forward DCT or inverse DCT.
DDSDirect Digital Synthesiser.
DecoderThe unit containing the electronic circuitry necessary to decode encrypted signals. Some Decoders are separate
from the receiver but in satellite TV broadcasting, the term is often used interchangeably as a name for an
Integrated Receiver Decoder (IRD). The term IRD, or IRD / Decoder, is usually associated with satellite TV
broadcasting while Cable systems are based on Converters or on Set-Top Boxes / Converters.
Decoding Time-stampA field that may be present in a PES packet header that indicates the time that an access unit is to be decoded in
the system target Decoder.
DIDData Identifier.
Differential CodingMethod of coding using the difference between the value of a sample and a predicted value.
DILDual In Line: The most common type of package for small and medium scale integrated circuits. The pins hang
vertically from the two long sides of the rectangular package, spaced at intervals of 0.1 inch.
DINDeutsches Institut für Normung: German Standards Institute.
Dolby DigitalFormerly AC-3. An audio coding system based on transform coding techniques and psychoacoustic principles.
DownlinkThe part of the satellite communications circuit that extends from the satellite to an Earth station.
DownconvertThe process by which the frequency of a broadcast transport stream is shifted to a lower frequency range.
DPCM
Differential Pulse Code Modulation: An audio digitisation technique that codes the difference between samples
rather than coding an absolute measurement at each sample point.
DSNGDigital Satellite News-Gathering.
DSPDigital Signal Processor.
DTEData circuit Terminating Equipment: A communications device that originates (is the source) or is the end
receiving unit (destination) of signals on a network. It is typically a terminal or computer.
DTHDirect To Home. The term used to describe uninterrupted transmission from the satellite directly to the subscriber,
that is, no intermediary cable or terrestrial network utilised.
DTSDigital Theater Systems: A motion picture digital sound system.
DVB
Digital Video Broadcasting: A European project which has defined transmission standards for digital
broadcasting systems using satellite (DVB-S), cable (DVB-C) and terrestrial (DVB-T) medium, created by the
EP-DVB group and approved by the ITU. Specifies modulation, error correction, etc. (see EN 300 421 for satellite,
EN 300 429 for cable and EN 300 744 for terrestrial).
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Glossary
DVB SIDigital Video Broadcasting Service Information.
DVB-PIDVB-Professional Interfaces: TTV Lan search shows – DVB Physical Interfaces
EarthTechnical Earth: Ensures that all equipment chassis within a rack are at the same potential, usually by
connecting a wire between the Technical earth terminal and a suitable point on the rack. This is sometimes known
as a Functional earth.
Protective Earth: Used for electric shock protection. This is sometimes known as a safety earth.
EBUEuropean Broadcast Union.
ECMEntitlement Control Message.
EDIEthernet Data Input
EIAElectronics Industries Association (USA).
EIT
Event Information Table: Equipment: A component of the DVB-Service Information (SI) stream generated within
an Encoder, containing information about events or programmes such as event name, start time, duration, etc.
System: EIT (Present/Following) contains the name of the current and next event. It may include an optional
descriptor (synopsis) giving brief details of content. EIT (Schedule) is used to produce a full EPG. The EIT is the
only DVB-SI table, which can be encrypted.
Elementary StreamA generic term for a coded bit-stream, be it video, audio or other.
EMCElectromagnetic Compatibility.
EMMEntitlement Management Message.
EncryptionEncoding of a transmission to prevent access without the appropriate decryption equipment and authorisation.
EPGElectronic Programme Guide: On-screen programme listing using thumbnail pictures and/or text.
Ethernet
The most widely used local area network (LAN) defined by the IEEE as the 802.3 standard. Transmission speeds
vary according to the configuration. Ethernet uses copper or fibre-optic cables.
ETSEuropean Telecommunications Sta ndard.
ETSIEuropean Telecommunications Standards Institute.
FCCFederal Communications Commission.
FDMFrequency Division Multiplex: A common communication channel for a number of signals, each with its own
allotted frequency.
FECForward Error Correction: A method of catching errors in a transmission. The data is processed through an
algorithm that adds extra bits and sends these with the transmitted data. The extra bits are then used at the
receiving end to check the accuracy of the transmission and correct any errors.
FFTFast Fourier Transformati on: A fast algorithm for performing a discrete Fourier transform.
FIFOFirst In, First Out: A data structure or hardware buffer from which items are taken out in the same order they
were put in. Also known as a shelf from the analogy with pushing items onto one end of a shelf so that they fall off
the other. A FIFO is useful for buffering a stream of data between a sender and receiver that are not synchronised
- i.e. they not sending and receiving at exactly the same rate.
FootprintThe area of the Earth’s surface covered by a satellite’s downlink transmission. Also (generally) the area from
which the satellite can receive uplink transmissions.
FTPFile Trans fer Protocol: A protocol used to transfer files over a TCP/IP network (Internet, UNIX, etc.). For
example, after developing the HTML pages for a Web site on a local machine, they are typically uploaded to the
Web server, using FTP. Unlike e-mail programs in which graphics and program files have to be attached, FTP is
designed to handle binary files directly and does not add the overhead of encoding and decoding the data.
G.703The ITU-T standard which defines the physical and electrical characteristics of hierarchical digital interfaces.
GOPGroup of Pictures: MPEG video compression works more effectively by processing a number of video frames as
a block. The TANDBERG Television Encoder normally uses a 12 frame GOP; every twelfth frame is an I frame.
GUI
Graphical User Interface: The use of pictures rather than just words to represent the input and output of a
program. A program with a GUI runs under a windowing system and has a screen interface capable of displaying
graphics in the form of icons, drop-down menus and a movable pointer. The on-screen information is usually
controlled / manipulated by a mouse or keyboard.
HDTVHigh Definition Television.
HPA
High Power Amplifier: Used in the signal path to amplify the modulated and up-converted broadcast signal for
feeding to the uplink antenna.
HSYNCHorizontal (line) SYNCs.
HubA device in a multipoint network at which branch nodes interconnect.
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ICAMIntegrated Conditional Access Module: Embedded in the IRD and responsible for descrambling, plus packet
filtering and reception. It also contains the physical interface to the subscriber’s viewing card.
IECInternational Electrotechnical Committee.
IFIntermediate Frequency: Usually refers to the 70 MHz or 140 MHz output of the Modulator in cable, satellite and
terrestrial transmission applications.
Interframe Coding
Compression coding involving consecutive frames. When consecutive frames are compared, temporal redundancy
is used to remove common elements (information) and arrive at difference information. MPEG-2 uses B and P
frames, but since they are individually incomplete and relate to other adjacent frames, they cannot be edited
independently.
Intraframe Coding
Compression coding involving a single frame. Redundant information is removed on a per frame basis. All other
frames are ignored. Coding of a macroblock or picture that uses information only from that macroblock or picture.
Exploits spatial redundancy by using DCT to produce I frames; these are independent frames and can be edited.
IPInternet Protocol: The IP part of TCP/IP. IP implements the network layer (layer 3) of the protocol, which contains
a network address and is used to route a message to a different network or sub-network. IP accepts packets from
the layer 4 transport protocol (TCP or UDP), adds its own header to it and delivers a datagram to the layer 2 data
link protocol. It may also break the packet into fragments to support the Maximum Transmission / Transfer Unit
(MTU) of the network.
I-picture; I-frame
Intracoded Picture/Frame: A picture / frame, which is coded using purely intracoding with reference to no other
field or frame information. The I frame is used as a reference for other compression methods.
IPPVImpulse Pay Per View: One-time events, purchased at home (on impulse) using a prearranged SMS credit line.
IRDIntegrated Receiver Decoder: The Receiver with an internal MPEG Decoder, which is connected to the
subscriber’s TV. The IRD is responsible for receiving and de-multiplexing all signals. The unit receives the
incoming signal and if CA is active, decodes the signal when provided with a control word by the viewing card.
Domestic IRDs are also known as Set-Top Units or Set-Top Boxes.
IREInstitute of Radio Engineers: No longer in existence but the name lives on as a unit of video amplitude
measurement. This unit is 1% of the range between blanking a peak white for a standard amplitude signal.
ISDNIntegrated Services Digital Network: The basic ISDN service is BRI (Basic Rate Interface), which is made up of
two 64 kbit/s B channels and one 16 kbit/s D channel (2B+D). If both channels are combined into one, called
bonding, the total data rate becomes 128 kbit/s and is four and a half times the bandwidth of a V.34 modem
(28.8 kbit/s).
The ISDN high-speed service is PRI (Primary Rate Interface). It provides 23 B channels and one 64 kbit/s D
channel (23B+D), which is equivalent to the 24 channels of a T1 line. When several channels are bonded together,
high data rates can be achieved. For example, it is common to bond six channels for quality videoconferencing at
384 kbit/s. In Europe, PRI includes 30 B channels and one D channel, equivalent to an E1 line.
ISOInternational Standards Organisation.
ISOGInter-union Satellite Operations Group.
ITSInsertion Test Signal: A suite of analogue test signals placed on lines in the VBI. Also known as VITS.
ITTInvitation To Tender.
ITU-RInt ernational Telecommunications Union - Radiocommunications Study Groups (was CCIR).
ITU-TInternational Telecommunications Union - Telecommunications Standardisation Sector (was CCITT).
JPEG
Joint Photographic E xperts Group: ISO/ITU standard for compressing still images. It has a high compression
capability. Using discrete cosine transform, it provides user specified compression ratios up to around 100:1 (there
is a trade-off between image quality and file size).
kbit/s1000 bits per second.
Kbit1024 bits, usually refers to memory capacity or allocation.
Ku-bandThe portion of the electromagnetic spectrum, which spans the frequency range of approximately 12 GHz to
14 GHz. Used by communications satellites. Preferred for DTH applications because this range of frequency is
less susceptible to interference.
LANLocal Area Network: A network, which provides facilities for communications within a defined building or group of
buildings in close proximity.
L-bandThe frequency band from 950 MHz to 2150 MHz, which is the normal input-frequency-range of a domestic IRD.
The incoming signal from the satellite is down-converted to L-band by the LNB.
LEDLight Emitting Diode.
LNB
Low Noise Block Down-Converter: The component of a subscriber satellite transmission receiving dish which
amplifies the incoming signal and down-converts it to a suitable frequency to input to the IRD (typically 950 MHz 1600 MHz).
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LOLocal Oscillator.
LSBLeast significant bit.
LuminanceThe television signal representing brightness, or the amount of light at any point in a picture. The Y in YC
RCB.
LVDSLow Voltage Differential Signal: LVDS is a generic multi-purpose Interface standard for high speed / low power
data transmission. It was standardised in ANSI/TIA/EIA-644-1995 Standard (aka RS-644).
MacroblockA 16x16-pixel area of the TV picture. Most processing within the MPEG domain takes place with macro blocks.
These are converted to four 8x8 blocks using either frame DCT or field DCT. Four 8 x 8 blocks of luminance data
and two (4:2:0 chrominance format), four (4:2:2) or eight (4:4:4) corresponding 8 x 8 blocks of chrominance data
coming from a 16 x 16 section of the luminance component of the picture. Macroblock can be used to refer to the
sample data and to the coded representation of the sample values and other data elements.
Mbit/sMillion bits per second.
MCC
Multiplex Control Computer: A component of a System 3000 compression system. The MCC sets up the
configuration for the System 3000 Multiplexers under its control. The MCC controls both the main and backup
Multiplexer for each transport stream.
MCPCMultiple Channels Per Carrier.
MEMMultiplex Element Manager: A GUI based control system, part of the range of TANDBERG Television
compression system control element products. The evolution 5000 MEM holds a model of the system hardware.
Using this model, it controls the individual system elements to configure the output multiplexes from the incoming
elementary streams. The MEM monitors the equipment status and controls any redundancy switching.
MMDSMultichannel Microwave Distribution System: A terrestrial microwave direct-to-home broadcast transmission
system.
Motion Compensation
The use of motion vectors to improve the efficiency of the prediction of sample values. The prediction uses motion
vectors to provide offsets into the past and/or future reference frames or fields containing previously decoded
sample values that are used to form the prediction error signal.
Motion EstimationThe process of estimating motion vectors in the encoding process.
Motion VectorA two-dimensional vector used for motion compensation that provides an offset from the co-ordinate position in the
current picture or field to the co-ordinates in a reference frame or field.
MP@ML
Main Profile at Main Level: A subset of the MPEG-2 standard, which supports digital video storage (DVD etc.)
and transmissions up to 15 Mbit/s over various mediums.
MP@HLMain Profile at High Level: A subset of the MPEG-2 standard, which supports digital video storage (DVD etc.)
and transmissions up to 80 Mbit/s over various mediums.
MPEGMoving Pictures Expert s Group: The name of the ISO/IEC working group, which sets up the international
standards for digital television source coding.
MPEG-2
Industry standard for video and audio source coding using compression and multiplexing techniques to minimise
video signal bit-rate in preparation for broadcasting. Specified in ISO/IEC 13818. The standard is split into layers
and profiles defining bit-rates and picture resolutions.
MSBMost significant bit.
Msymbol/s(Msym/s) Mega (million) Symbols per second (10
6
Symbols per second).
MultiplexA number of discrete data streams (typically 8 to 12), from encoders, that are compressed together in a single
DVB compliant transport stream for delivery to a Modulator.
MUSICAM
Masking pattern adapted Universal Sub-band Integrated Coding And Multiplexing: An audio bit-rate
reduction system relying on sub-band coding and psychoacoustic masking.
MuxMultiplexer: Transmission Multiplexer: receives EMMs from the ACC, ECMs from the BCC, video/audio data from
the encoders, and the SI stream from the SIC. It then multiplexes them all into a single DVB-compliant transport
stream, and delivers the signal to the uplink after modulation.
The Multiplexer also contains the cypher card, which scrambles the services according to the control words
supplied by the BCC.
NetworkIn the context of broadcasting: a collection of MPEG-2 transport stream multiplexes transmitted on a single
delivery system, for example, all digital channels on a specific cable system.
NICAMNear Instanta neously Companded Audio Multiplex: Official name is NICAM 728. Used for digital stereo
sound broadcasting in the UK employing compression techniques to deliver very near CD quality audio.
728 refers to the bit-rate in kbit/s.
NITNetwork Information Table: Part of the service information data. The NIT provides information about the physical
organisation of each transport stream multiplex, and the characteristics of the network itself (such as the actual
frequencies and modulation being used).
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nmNanometre: a unit of length equal to one thousand millionth (10
-9
) of a metre.
NTSCNational Television Systems Committee: The group, which developed analogue standards used in television
broadcast systems in the United States. Also adopted in other countries (e.g. Mexico, Canada, Japan). This
system uses 525 picture lines and a 59.97 Hz field frequency.
NVOD
Near Video On Dema nd: Method of offering multiple showings of movies or events. The showings are timed to
start at set intervals, determined by the broadcaster. Each showing of a movie or event can be sold to subscribers
separately.
NVRAMNon-volatile Random Access Memory: Memory devices (permitting random read / write access) that do not lose
their information when power is removed. Stores the default configuration parameters set by the user.
OFDM
Orthogonal FDM: A modulation technique used for digital TV transmission in Europe, Japan and Australia; more
spectrally efficient than FDM. In OFDM, data is distributed over a large number of carriers spaced apart at precise
frequencies. The carriers are arranged with overlapping sidebands in such a way that the signals can be received
without adjacent channel interference.
OPPVOrder ahead Pay Per View: An advance purchase of encrypted one-time events with an expiry date.
OSD
On-screen display: Messages and graphics, typically originating from the SMS, and displayed on the subscriber’s
TV screen by the IRD, to inform the subscriber of problems or instruct the subscriber to contact the SMS.
PacketA unit of data transmitted over a packet-switching network. A packet consists of a header followed by a number of
contiguous bytes from an elementary data stream.
PALPhase Alternating Line: A colour TV broadcasting system where the phase of the R-Y colour-difference signal is
inverted on every alternate line to average out errors providing consistent colour reproduction.
PAT
Program Association Table: Part of the MPEG-2 Program Specific Information (PSI) data and is mandatory for
MPEG-2 compliance. The PAT points (maps) to the PMT.
PCMPulse Code Modulation: A process in which a signal is sampled, each sample is quantised independently of
other samples, and the resulting succession of quantised values is encoded into a digital signal.
PCRProgram Clock Reference: A time-stamp in the transport stream from which the Decoder timing is derived.
PDCProgramme Delivery Control (VBI): A Teletext service allowing simple programming (i.e. VideoPlus) of VCR
recording times. If the desired program is rescheduled, PDC updates the programming information in the VCR.
Pel
Picture Element: Also known as a pixel. The smallest resolvable rectangular area of an image either on a screen
or stored in memory. On screen, pixels are made up of one or more dots of colour. Monochrome and grey-scale
systems use one dot per pixel. For grey-scale, the pixel is energised with different intensities, creating a range
from dark to light (a scale of 0-255 for an eight-bit pixel). Colour systems use a red, green and blue dot per pixel,
each of which is energised to different intensities, creating a range of colours perceived as the mixture of these
dots. If all three dots are dark, the result is black. If all three dots are bright, the result is white.
PESPacketised Elementary Stream: A sequential stream of data bytes that has been converted from original
elementary streams of audio and video access units and transported as packets. Each PES packet consists of a
header and a payload of variable length and subject to a maximum of 64 kbytes. A time-stamp is provided by the
MPEG-2 systems layer to ensure correct synchronisation between related elementary streams at the Decoder.
PIDPacket Id entifier: The header on a packet in an elementary data stream, which identifies that data stream. An
MPEG-2 / DVB standard.
PIN
Personal Identification Number: A password used to control access to programming and to set purchase limits.
Each subscriber household can activate several PINs and may use them to set individual parental rating or
spending limits for each family member.
PixelPIX (picture) Element: The digital representation of the smallest area of a television picture capable of being
delineated by the bit-stream. See Pel for more information.
pk-pkpeak to peak: Measurement of a signal or waveform from its most negative point to its most positive point.
PLL
Phase-Locked Loop. A phase-locked loop is a control system which controls the rotation of an object by
comparing its rotational position (phase) with another rotating object as in the case of a sine wave or other
repeating signal. This type of control system can synchronise not only the speed, but also the angular position of
two waveforms that are not derived from the same source.
PMT
Program Map Table: Part of the MPEG-2 Program Specific Information (PSI) data and is mandatory for MPEG-2
compliance. Each service has a PMT, which lists the component parts (elementary streams of video, audio, etc.)
for the various services being transmitted.
P-picture/P-frameA picture / frame produced using forward prediction. It contains predictions from either previous I frames or
previous P frames. The P frame is used as a reference for future P or B frames.
ppmParts per million.
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PPVPay Per View: A system of payment for viewing services based on a usage / event basis rather than on on-going
subscription. Subscribers must purchase viewing rights for each PPV event that they wish to view. PPV events
may be purchased as IPPVor OPPV.
Program
PC - A sequence of instructions for a computer.
TV - A concept having a precise definition within ISO 13818-1 (MPEG-2). For a transport stream, the timebase is
defined by the PCR. The use of the PCR for timing information creates a virtual channel within the stream.
ProgrammeA linking of one or more events under the control of a broadcaster. For example, football match, news, film show.
In the MPEG-2 concept, the collection of elementary streams comprising the programme, have a common start
and end time. A series of programmes are referred to as events.
PRP
B
Analogue Colour difference signals. Refer to CRCB for an explanation.
PROMProgrammable Read-Only Memory: A device, which may be written once with data for permanent storage, and
then read whenever required. Special types of PROM permit the erasure of all data by Ultraviolet light (EPROM) or
by application of an electronic signal (EEPROM).
PSProgram Stream: A combination of one or more PESs with a common timebase.
PSI
Program Specific Information: Consists of normative data, which is necessary for the demultiplexing of transport
streams and the successful regeneration of programs. (See also: SI).
PSIPProgram System Information Protocol: The ATSC equivalent of SI for DVB.
PSKPhase Shift Keying: A method of modulating digital signals particularly suited to satellite transmission.
PSRProfessional Satellite Receiver: See also: IRD.
PSUPower Supply Unit.
PTSPresentation Time Stamp (ATSC).
QAMQuadrature Amplitude Modulation: A method of modulating digital signals, which uses combined techniques of
phase modulation and amplitude modulation. It is particularly suited to cable networks.
QPSKQuadrature Phase Shift Keying: A form of phase shift keying modulation using four states.
QSIFQuarter Screen Image Format.
QuantiseA process of converting analogue waveforms to digital information. 8-bit quantisation as set out in ITU-R Rec. 601.
uses 256 levels in the range 0 – 255 to determine the analogue waveform value at any given point. The value is
then converted to a digital number for processing in the digital domain.
RAMRandom Access Memory: A volatile storage device for digital data. Data may be written to, or read from, the
device as often as required. When power is removed, the data it contains is lost.
RASRemote Authorization System: A TANDBERG TV proprietary public-key encryption system used to prevent
unauthorized viewing of a TV programme or programmes.
RFRadio Frequency.
ROM
Read Only Memory: A non-volatile storage device for digital data. Data has been stored permanently in this
device. No further information may be stored (written) there and the data it holds cannot be erased. Data may be
read as often as required.
RSReed-Solomon coding: An error detection and correction, coding system. 16 bytes of Reed-Solomon Forward
Error Correction code are appended to the packet before transmission, bringing the packet length to 204 bytes.
The 16 bytes are used at the receiving end to correct any errors. Up to eight corrupted bytes can be corrected.
RLCRun Length Coding: Minimisation of the length of a bit-stream by replacing repeated characters with an
instruction of the form ‘repeat character x y times’.
SCPCSingle Channel Per Carrier.
Spectral ScramblingA process (in digital transmission) used to combine a digital signal with a pseudo-random sequence, producing a
randomised digital signal that conveys the original information in a form optimised for a broadcast channel.
Scrambling
Alteration of the characteristics of a television signal in order to prevent unauthorised reception of the information
in clear form.
SDISerial Digital Interface.
SDTService Description Table: Provides information in the SI stream about the services in the system; for example,
the name of the service, the service provider, etc.
SELVSafety Extra Low Voltage (EN 60950).
STBSet-Top Box: A box that sits on top of a television set and is the interface between the home television and the
cable TV company. New technologies evolving for set-top boxes are video-on-demand, video games, educational
services, database searches, and home shopping. The cable equivalent of the IRD.
STTSystem Time Table (ATSC).
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SFNSingle Frequency Network: The SFN technique allows large geographic areas to be served with a common
transmission multiplex. All transmitters in the network are synchronously modulated with the same signal and they
all radiate on the same frequency. Due to the multi-path capability of the multi-carrier transmission system
(COFDM), signals from several transmitters arriving at a receiving antenna may contribute constructively to the
total wanted signal. The SFN technique is not only frequency efficient but also power efficient because fades in the
field strength of one transmitter may be filled by another transmitter.
SI
Service Information: Digital information describing the delivery system, content and scheduling (timing) of
broadcast data streams. DVB-SI data provides information to enable the IRD to automatically demultiplex and
decode the various streams of programmes within the multiplex.
Specified in ISO/IEC 13818[1]. (DVB)
Single Packet Burst Mode
A burst of ASI bytes (either 188 or 204, depending on packet length) is contiguously grouped into an MPEG-2
Transport Stream packet. Stuffing data is added between the packets to increase the data rate to 270 Mbit/s. See
DVB Document A010 rev. 1, Section B3.3, (ASI) Layer-2 Transport Protocol.
Smart CardA plastic card with a built-in microprocessor and memory used for identification, financial transactions or other
authorising data transfer. When inserted into a reader, data is transferred to and from the host machine or a
central computer. It is more secure than a magnetic stripe card and it can be disabled if the wrong password is
entered too many times. As a financial transaction card, it can be loaded with digital money and used in the same
way as cash until the balance reaches zero. The file protocol is specific to its intended application.
SMATV
Satellite Mas t Antenna Television: A distribution system, which provides sound and television signals to the
households of a building or group of buildings, typically used to refer to an apartment block.
SMPTESociety of Motion Picture and Television Engineers.
SMSSubscriber Management System: A system which handles the maintenance, billing, control and general
supervision of subscribers to conditional access technology viewing services provided through cable and satellite
broadcasting.
An SMS can be an automatic (e.g. Syntellect) system where subscribers order entitlements by entering
information via a telephone. Alternatively, an SMS can be a manual system, which requires subscribers to speak
with an operator who then manually enters their entitlement requests. Some systems support multiple SMSs.
Information repetition due to areas of similar luminance and/or chrominance characteristics within a single frame.
Removed using DCT and Quantisation (Intra-Frame Coding).
SPISynchronous Parallel I nterface.
Statistical RedundancyData tables are used to assign fewer bits to the most commonly occurring events, thereby reducing the overall
bit-rate. Removed using Run Length Coding and Variable Length Coding.
TAXITransparent Asynchronous Tx / Rx Interface: A proprietary high-speed data interface.
TCP / IPTransmission Control Protocol/Internet Protocol: A set of communications protocols that may be used to
connect different types of computers over networks.
TDM
Time Division Multiplex: One common, communications channel carrying a number of signals, each with its own
allotted time slot.
TDTTime and Date Table: Part of the DVB Service Information. The TDT gives information relating to the present time
and date.
Temporal RedundancyInformation repetition due to areas of little or no movement between successive frames. Removed using motion
estimation and compensation (Inter-Frame Coding).
Time-stamp
A term that indicates the time of a specific action such as the arrival of a byte or the presentation of a presentation
unit.
TOTTime Offset Table: This optional SI table supports the use of local offsets as well as the UTC time/date
combination.
The purpose of the table is to list by country the current offset from UTC and the next expected change to that
offset (to track when daylight saving occurs).
The offset resolution is to within 1 minute over a range of ±12 hours from UTC.
Transport StreamA set of packetised elementary data streams and SI streams, which may comprise more than one programme, but
with common synchronisation and error protection. The data structure is defined in ISO/IEC 13818-1 [1] and is the
basis of the ETSI Digital Video Broadcasting standards.
Transport Stream Packet
A data structure used to convey information about the transport stream payload.
Header
TSTransport Stream.
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Glossary
TSDTTransport Stream Descriptor Table: A component of the MPEG-2 PSI data. This table describes which type of
Transport stream it is in (i.e. DVB, ATSC etc.). It may also contain other descriptors.
TSPTransport Stream Processor.
TVCTTerrestrial Virtual Channel Table (ATSC).
U44.45 mm (rack height standard).
UARTUniversal Asynchronous Receiver Transmitter: A device providing a serial interface for transmitting and
receiving data.
UHFUltra High Frequency: A portion of the electromagnetic spectrum covering 300 MHz to 3000 MHz (3 GHz).
UpconvertThe process by which the frequency of a broadcast transport stream is shifted to a higher frequency range.
UplinkThe part of the communications satellite circuit that extends from the Earth to the satellite.
UPS
Uninterruptable Power Supply: A method of supplying backup power when the electrical power fails or drops to
an unacceptable voltage level. Small UPS systems provide battery power for a few minutes; enough to power
down the computer in an orderly manner. This is particularly important where write back cache is used.
Write back cache is where modified data intended for the disk, is temporarily stored in RAM and can be lost in the
event of a power failure. Sophisticated systems are tied to electrical generators that can provide power for days.
UPS systems typically provide surge suppression and may provide voltage regulation.
UTCUniversal Time Co-ordinate: An internationally agreed basis for timekeeping introduced in 1972 and based on
international atomic time (corresponds to Greenwich Mean Time or GMT).
VCTVirtual Channe l Table (ATSC).
VHFVery High Frequency : A portion of the electromagnetic spectrum covering 30 MHz to 300 MHz.
VITCVertical Interval Time Code.
VITSVertical Interval Test Signal: See: ITS.
VPSVideo Programming System: A German precursor to PDC
WSS
Wide Screen Switching: Data used in wide-screen analogue services, which enables a receiver to select the
appropriate picture display mode.
WSTWorld System Teletext: System B Teletext. Used in 625 line / 50 Hz television systems (ITU-R 653).
XILINXA type of programmable Integrated Circuit.
Y (Luminance)Defines the brightness of a particular point on a TV line. The only signal required for black and white pictures.
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B. Technical Specification
Contents
B.1 Output B-3
B.1.1 International Television Standards ...............B-3
Table B.30: Power Supply Specifications...................................B-19
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B.1 Output
B.1.1 International Television Standards
Two composite video outputs are provided at the rear panel. These carry
identical video. The standard is selectable to PAL- I, B, G, D, N, M and
NTSC-M (with or without p ed est a l).
Table B.1: International Television Standards - 625 Line Output
As indicated in Menus: NTSC-MNTSC-NPPAL-M
Lines / frame525525525
Fields / second606060
Interlace2/12/12/1
Frames / second30 (29.97)30 (29.97)30 (29.97)
Lines / second15 75015 75015 750
Video band (MHz)4.24.24.2
RF band (MHz)6.06.06.0
FSC35795453579545357561149
Pedestal7.507.5
Technical Specificatio n
Table B.2: International Television Standards - 525 Line Output
As indicated in Menus: PAL B/G/IPAL-NPAL-N CBN
Lines / frame625625625
Fields / second505050
Interlace2/12/12/1
Frames / second252525
Lines / second15 62515 62515 625
Video band (MHz)5.0/5.54.24.2
RF band (MHz)7.0/8.06.06.0
FSC4433618.754433618.753582056.25
Pedestal07.50
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Technical Specificatio n
B.1.2 Video
Supported Video Resolutions
The TT1260 supports MP@ML and 4:2:2P@ML with video resolutions
described in Table B.3.
Table B.3: Supported Video Resolutions
625-line, 25 frame/s525-line, 30 (29.97) frame/s
720 pixels x 608 active lines720 pixels x 512 active lines4:2:2 mode only
720 pixels x 576 active lines720 pixels x 480 active linesü
704 pixels x 576 active lines704 pixels x 480 active linesï
544 pixels x 576 active lines544 pixels x 480 active linesý 4:2:0 and 4:2:2 modes
480 pixels x 576 active lines480 pixels x 480 active linesï
352 pixels x 576 active lines352 pixels x 480 active linesï
352 pixels x 288 active lines352 pixels x 240 active linesþ
Supported Video Bit-rates
The equipment supports decoding of compressed video at rates of up to
50 Mbit/s.
Performance Figures
1
Table B.4: Video Performance
ParameterPerformance
Luminance bar amplitudePAL:700 ±20 mVNTSC:100 ±2 IRE
White1000 ±30 mV140 ±3 IRE
Sync amplitude300 ±7 mV40 ±1 IRE
Burst amplitude300 ±7 mV40 ±1 IRE
PedestalN/A7.5 ±1 IRE
Luminance bar tilt0.5%
2T K Response1%K
Differential gain1% peak to peak
Differential phase1° peak to peak
Luminance non-linearity±4%
Signal-to-noise luminance weighted
Chrominance – luminance gain±2%
Chrominance – luminance delay±10 ns
Chrominance to AM noise ratio-60 dBrms
Chrominance to PM noise ratio-55 dBrms
Luminance freq. response0-5 MHz: ±0.2 dB; 5.8 MHz: -2+0 dB
2
³60 dBw
1
Measured with 1 metre RG-22 co-axial cable, 75 W terminated.
2
Signal-to-noise luminance weig hte d : me as ured on an active video line with unmodulated ramp video signal.
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Vertical Blanking Signals
The TT1260 range of Receivers and Decoders support the following VBI
reinsertion and signalling:
· VBI streams
· VPS data and pass through
· WSS data and pass through
· 525 VITC and 625 VITC
· Vertical Interval Test Signal (VITS)
· Video Index data
· AMOL pass through
· Closed Captioning (525-line sub-titling system)
· Insertion Test Signal (ITS) Insertion
B.2 Audio Decoding and Output Stage
Technical Specificatio n
B.2.1 General
The TT1260 is capable of simultaneously decoding two PES streams of
audio from the transport stream. Each of the Decoders is identical in
operation, but act completely independently of the other, with the
following exceptions:
· Both Decoders must be decoding channels that have the same
sampling rate
· Both Decoders are not required to simultaneously decode the same
PES stream
Each channel supports extraction of three types of coded audio from the
transport stream as follows:
· MPEG-2 Audio (Musicam): ISO/IEC 13818-3
· Dolby Digital AC-3 Audio: ATSC document A/52
· Linear Audio: SMPTE 302M – 2000 with system limitations as specified
in following section below
· The Receiver does not support MPEG-2 AAC Audio (ISO/IEC 13818-7)
at this release.
Audio component selection is specified from the User Interface or remote
interfaces. The TT1260 automatically detects the audio type of the selected
audio component and apply the appropriate decoding. Where there are
audio components in the selected serv ice of the same language but
different coding types, the preferred component is linear audio, followed by
Dolby Digital AC-3, and followed by MPEG audio.
There is no requirement for specific selection behaviour where a servi ce
contains two or more audio components of the same coding ty p e and
language. The TT1260 is not required to support dynamic changes in the
audio coding type once the initial selection has been made. Provision is
made in the User Interface and remote interfaces for user override of
default audio selection by language and audio coding type, or by PID.
There is no support for static default languages.
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Technical Specificatio n
B.2.2 MPEG Audio
The TT1260 supports decoding of MPEG audio as follows:
· Compression layers: MPEG-1 layers I and II
· Sampling rates (kHz): 32, 44.1, 48
· Maximum compressed data rate: 384 Kbit/s (layer II)
B.2.3 Dolby Digital AC-3 Audio
The TT1260 is able to decode and output the primary stereo pair of a
Dolby Digital AC-3 encoded audio stream. When there is data encoded on
the audio surround channels, the Decoder applies downmixing, so that
either a surround encoded stereo pair (LtRt downmix ) or a conventional
stereo pair (LoRo downmix) is av ailable at the output.
The TT1260 is not able to decode and output all 5.1 channels individually
as separate channels.
It is possible to output the compressed Dolby Digital stream from the
digital audio output, allowing it to be decoded to 5.1 channels by an
external Decoder.
Sampling rates (kHz): 32, 44.1, 48
Maximum compressed data rate: 640 Kbit/s
NOTE…
Support for Dolby Digital decoding requires approval and licensing from Dolby.
B.2.4 Linear Audio
The TT1260 is able to receive audio data in the form of linear PCM digital
audio data, up to 20-bits in resolution, and makes i t available for output as
either analogue or digital audio.
A maximum of four audio channels can be decoded from one PES stream.
B.3 Audio Output Format
B.3.1 General
The TT1260 provides an independent stereo pair output for each audio
channel. Analogue audio is always output and the following Digital audio
formats can be chosen from the User Interface and remote control
interfaces:
· IEC958 CON
· AES3
· Digital IEC958 compressed (Dolby Digital Digital ONLY)
· Digital Audio embedded into the Ancillary Data Space of the Serial
Digital Video Output.
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B.3.2 Analogue Audio
The TT1260 supports level control of the audio outputs. Independent
control of each output of each stereo pair is prov ided via the User
Interface and remote interfaces.
Audio output connector type: 2 X 9 way female D-type
Output level: +18 dBm nominal clipping level. Selectable in range 12 to
+24 dBm.
Output impedance: 50 W (nominal).
Table B.5: Analogue Audio Performance Requirement
ParameterConditionsLimit
Gain0 dBm input level±1 dB
Frequency response100 Hz - 15 kHz, 0 dBm input level±0.2 dB
20 Hz - 20 kHz, 0 dBm input level+0.5 dB, -1 dB
Cross talk0 dB input level, 100 Hz-80 dB
0 dB input level, 1 kHz-70 dB
0 dB input level, 10 kHz-60 dB
Distortion+8 dBm input level, 100 Hz-70 dB
+8 dBm input level, 6.3 kHz-70 dB
NoiseRMS-65 dB
Phase40 Hz to 15 kHz±2°
Lip sync delayDepends on synchroniser configuration±2ms
Technical Specificatio n
B.3.3 Digital Audio
Maximum data rate: 3.072 Mbit/s.
· EBU Tech. 3250 Specification of the digital audio interface (the
AES/EBU interface), 2nd Edition 1992
· AES Recommended Practice for Digital Audio Engineering – Serial
transmission format for two-channel linearly represented digital audio
data (Revision of AES3-1985, ANSI S4.40-1985)[1999-02-10 printing]
· ANSI S4.40 – 1992 Recommended Practice for Digital Audio
Engineering – Serial Transmission Format for Two-Channel Linearly
Represented Digital Audio Data (AES 3)
B.3.4 Embedded Audio
Either or both of the stereo pairs selected for decoding by the Receiver can
be routed out via the SDI video output, as AES/EBU digital audio
embedded in the Ancillary Data Space, as defined in SMPTE 272M-1994.
The operational level of this standard supported is SMPTE 272M –A
(20-bit synchronous audio at sampl ing rates of 48kHz).
B.3.5 Audio Routing
The IRD supports the following routing of the stereo audio signal under
control of the User Interface and remote interfaces:
· Normal stereo (left signal to left output, right signal to right output)
· Left to both (left signal to left and right outputs)
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Technical Specificatio n
· Right to both (right signal to left and ri ght outputs)
B.3.6 Dual Mono
Where a dual mono service is available (i.e. stream 1 and stream 2 sharing
the same PID), it is possible to configure the output as follows:
· Stream 1 on both left and right channels
· Stream 2 on both left and right channels
· Stream 1 on left channel, and stream 2 on right channel
B.3.7 Lip Sync
The audio at the output remains synchronous to the decoded video by
default (i.e. where both video and audio streams are available from the
same service). In such circumstances the video and audio streams share
the same PCR.
The lip sync error (delay fr om p r esentation of video until presentation of
audio) introduced by the Receiver is in the range of ±2ms.
The lip sync delay betw een stereo p air 1 and 2 is ±2ms because the PTS
will be generated independently for each pair.
When using frame sync the lip sync error is –10 to +30ms due to audio
frame skip and repeats.
B.3.8 Supported Audio Specifications
Table B.6: Supported Audio Specifications
SpecificationDescriptionAvailability
ISO/IEC 13818-3Generic Coding of Moving Pictures and Associated