The RL-740 relay card is designed to interface with
the IRT Eurocard VG-737 video and AG-738 audio
program fail modules.
Front panel LED indicators are used to indicate the
status of each relay circuit.
The RL-740 utility relay card is designed to provide
two isolated contact sets and contains 5 DPST relays
which can be controlled individually, both the make
and break contacts are available either directly or by
on board link selection.
One of the contact sets can also have the relay
common contacts bussed to facilitate connection to
the input circuit of the IRT 5x1 video and audio
switchers.
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When the relay is NOT ENERGISED relay 1 circuit
switches input 1 to the output thus providing a secure
path when power is not present on the module.
The relays used are bifurcated contact low energising
current relays designed for long life and high
reliability.
Note: For relay switching of video, data and HF, see
the AVS-3170 relay switcher.
See also other 3000 series switching products. |
