OPERATORS MANUAL
TT1200 MPEG2-DVB PROFESSIONAL DECODER
PAGE 15
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
3.2.2 Irdeto CA system
The Irdeto CA system requires an additional CAM interface module and Irdeto PCMCIA CAM module
to be installed. When this is the case, the upper smart card reader is used, with the chip side of the
Irdeto smart card pointing downwards.
The CA module from IRDETO is inserted by first removing the top lid of the decoder by unscrewing
the phillips screws. The CA interface is present on the card located above the main circuit board. The
CA module is inserted into the CA interface by simply sliding it gently into the slot. Reassemble the
unit by screwing the top lid back on. In order to be able to descramble a IRDETO CA signal, a smart
card can now be inserted face down in the upper smart card reader, as indicated by the arrow below the
smart card slot.
3.3 Video Connectors (BNC)
PAL
Testlines in VBI, (lines 17,18 or 19,20)
Teletext (EBU), transparent insertion in VBI
Teletext (EBU), subtitling output on video if enabled.
Wide Screen Signalling (WSS) insertion in VBI
Video Programming System (VPS) insertion in VBI
SECAM
Testlines in VBI, (lines 17,18 or 19,20)
Teletext, transparent insertion in VBI
Teletext subtitling output on video if enabled.
Wide Screen Signalling (WSS) insertion in VBI
Video Programming System (VPS) insertion in VBI
NTSC
Testlines in VBI (line 17)
Closed Caption
Ghost Cancelling Reference (GCR) in VBI
There is a 15Mbit video rate constraint that apply. The decoding is performed on Main Profile Main
Level (MP@ML), which is the standard for cable headend feeds of today.
When the decoder is not receiving any MPEG information, the video output is black (i.e black signal)
with test-lines in VBI (if enabled). The video output can also be DC when alarm mode is set to DC.
3.4 Audio Connectors
Analogue stereo sound output, balanced (mini XLR):
Stereo, mono or dual tone
The Audio output decodes Layer 2 coded streams with rates from 32Kbits to 384Kbit.
The operator can tailor the audio output to suit the external equipment present. This is done by
configuring the modulator and sound level controls. The modulator control allows the operator to
output the appropriate format to the external equipment regardless of the coding (stereo, mono, dual).
The connectors are of type Mini-XLR. Depending on the external equipment, the outputs can be used as
balanced or unbalanced. Figure 6. Pinout for the audio connectors shows the different connections to
achieve the different outputs.
The AUDIO connector pair is related to the video output of the TV-channel.
