The DAI-3206 is intended as a high performance audio embedder for 270 Mbit SDI video signals.
A typical SDI signal may contain up to eight audio pairs arranged in four groups, although only one group is normally required for program distribution.
2 AES signals, 4 analogue audio signals, or a combination of 1 AES and 2 analogue audio signals may be inserted into an existing SDI video stream.
Each DAI-3206 is capable of inserting one audio group (2 AES signals - 4 channels). Group position selection is made by the front panel local control.
Regenerated SDI outputs are provided to allow connection to more modules if additional channels are required. |
The DAI-3206 supports AES/EBU synchronous / asynchronous 48 kHz, 20-bit audio data packets.
An audio presence indicator is provided for each input. If one AES or analogue audio pair is missing then those particular channels are set to zero. If both
AES pairs are missing then no packets are inserted.
The DAI-3206 complements the DAX-3206 audio extractor.
Front panel LEDs indicate loss of SDI input and the presence of AES1 and AES2 signals. An external relay alarm is also provided on the rear assembly.
The DAI-3206 is fabricated in IRT's standard Eurocard format and may be housed in a variety of IRT Eurocard frames alongside other standard modules. |
