Analogue Audio / Video
Analogue Video & Audio to 270
Mb/s Network Interface Adapters
1 analogue video, 4 audio and 1 data channel to
270 Mb/s digital stream suitable for transmission over 270 Mb/s
systems, such as digital fibre systems, routers, etc.
- Plug-in Fibre Optic
Link boards included.
- Modular format
compatible with IRT fibre optic, distribution amplifier and
and DAC-3250/OPT form an encoder / decoder pair for converting an
analogue video, up to 4 channels of audio and an RS-232 data port to
a 270 Mb/s digital signal suitable for transport over ASI/SDI paths.
This allows analogue signals to be passed through purely digital
environments such as digital optical links and digital routers and
switchers thus simplifying installations that are predominantly
digital where some analogue signals still exist.
When used with IRT's fibre mux/demux system, both analogue and
digital signals can be sent over the same link.
The ADC-3250/OPT encodes the analogue input signals to a 270 Mb/s
digital stream. The inputs can either be a single video, up to 4
channels of audio or a combination of video and audio. There is also
an RS-232 data input port, which can be used concurrently with the
video and audio or by itself. The DAC-3250/OPT decodes the 270 Mb/s
digital stream to recover the original signals.
Front panel LED
indicators on both units indicate the presence of the analogue and
data input signals. The ADC-3250/OPT allows cable equalisation of
various lengths by a front panel control. A front panel monitor
output aids in setting this correctly.
Plug-in fibre optic boards are included on both the ADC-3250/OPT and
DAC-3250/OPT for direct connection to a single mode fibre.
The 270 Mb/s digital signal is of the same data rate as ASI and SDI
signals hence its ability to be sent over ASI/SDI paths. Although
similar in structure to both ASI and SDI it is neither of these
types of signals. Hence the ADC-3250/OPT and DAC-3250/OPT are
designed to act as an encoder / decoder pair.
Both the ADC-3250/OPT and DAC-3250/OPT are manufactured on extended
Eurocard boards and are suitable for mounting in IRT's 1RU and 3RU
Eurocard frames with other analogue or digital modules.
here to view data sheet