14
Terminal Block, Output Signals
All status outputs will be provided via relay contact closure.These contact closures will be provided via terminal block
to the user.The name and description of each output is shown below.
Busy Contact
Normally Open contact closure becomes shorted whenever the DFT
1
20 is processing a page.This would include the
record and play processes, repeats and delays, recording playback tones, etc.
Play Contact
Normally Open contact closure becomes shorted whenever the DFT
1
20 is playing audio through the output. It will
be shorted during the pause between the message repeats but not during the delays between different messages with-
in the play sequence.The Play output will be shorted when the Override Input is active.
Rec Contact
Normally Open contact closure becomes shorted whenever the DFT
1
20 is actually recording a page into memory. It
will not be activated just because the Record input is active, but only when the DFT
1
20 is actually storing data.
