OPERATORS MANUAL
TT1200 MPEG2-DVB PROFESSIONAL DECODER
PAGE 5
TANDBERG TELEVISION ASA, Philip Pedersensvei 20, PO Box 322, N-1324 Lysaker, Norway
Tel: +47 67 11 62 00, Fax: +47 67 11 62 01
1. Introduction
1.1 Description of the TT1200 MPEG2-DVB Decoder
The TT1200 is a product in the Tandberg Television ASA growing MPEG2 receiver family. This one
channel 1U unit is designed for professional transcoding of one TV service into PAL, PAL M, SECAM
or NTSC video and one stereo audio pair.
TT1200 draws on more than 10 years of experience in designing high quality and professional
transcoding equipment for the reception of satellite TV channels at cable head-ends.
The decoder occupies 1U in an 19 inch rack and can easily be stacked on top of each other as the
internal fan sustains sufficient air flow from front to back.
The MPEG2 decoder include:
Full range QPSK demodulator 2-30.5Msymb (not on versions with DVB ASI input)
PAL/PAL M/NTSC/SECAM Video output
One stereo audio pair
A low speed RS232 data/remote control port
Alarm relay used for switching purposes
Options available upon request are
ASI output port
ASI input port
Two additional stereo audio pairs
The QPSK input module is capable of receiving a 2-30.5Msymb QPSK modulated signal. It supports
all FEC codes and can supply an LNC Voltage of 13V or 18V. A 22kHz tone can be inserted on the
LNC voltage DC output.
The TV channel comprises an audio and video output pair. The balanced stereo audio output interprets
layer II compressed audio. PAL, SECAM and NTSC video formats are supported. VBI handling
include the following:
Testlines
Teletext (625 lines video)
Wide Screen Signalling (WSS) (625 lines video)
Video Programming System (VPS) (625 lines video)
Ghost Cancelling Reference (GCR) (525 lines video)
Closed Captioning (525 lines video)
Didon Line
Sin(x)/x testline
Frequency sweep
The configurable alarm relay can be used for redundancy switching or other external handling of alarm
events.
Different conditional access systems are supported. Viaccess, Conax, Nagra, Mediaguard, Irdeto, Fixed
Key CA (BISS mode 1) and a Tandberg Television proprietary system are available today.
Control of the decoder is achieved by manoeuvring the menu system available on the front panel LCD
using the four front panel keys. The multi purpose RS232 port gives the user a full remote control
protocol, data output, and software upgrade feature.
