Introduction
Page 1-6
Instruction Manual: Professional Receivers and Decoders (IRD)
ST.TM.TT1220.1
1.2.3
Outputs
Transport Stream Output
One DVB-ASI BNC connector may be available. This provides the current
incoming transport stream, including the current descrambled service, to
be output at a maximum of 60 Mbit/s.
Video Outputs
Two BNC composite analogue video outputs are present on the rear of the
unit. If the factory fitted option of a SDI video output is present, it
replaces one of the composite outputs.
Audio Outputs
One analogue stereo audio pair carried on a 9-pin D-SUB connector, is
available. Depending on the input, it is menu configurable to allow one
stereo, a dual-mono or two independent mono channels. The channels can
carry different languages.
The primary audio output might be replaced by the extended audio output
option, which allows for two stereo audio pairs carried on two 9-pin D-SUB
connectors.
Depending on the configured options, the extended audio output may be
able to either provide analogue balanced audio, AES/EBU digital audio,
AC-3 digital passthrough, or AC-3 to analogue Dolby Pro-Logic downmix.
Data Output
RS-232 asynchronous low speed data output carried on a 9-way D-sub
connector, available on all models. The data output rate is configurable
from 1200 bit/s to 115200 bit/s.
Alarm Output
Failure, alarm and warning monitoring is user configurable from the menu
system, and performed within the equipment. When the equipment is in
an erred state, the alarm is signalled both via the front panel alarm LED,
and via the 9-way D-sub alarm relay connector, located on the rear of the
unit. For instructions on configuring the alarms, see Chapter 5, Alarms. For
a description of the alarm relay, see Chapter 2, Installing the Equipment.
1.2.4
Conditional Access
The following conditional access systems are standard on the TT1220
range of decoders.
•
No conditional access
•
Signal protection (if fitted)
•
EBU BISS (mode 0 and mode 1)
