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R-55 / Mar 2003
STEREO LINE INPUT
On Tally
Lets the module’s channel ON switch control an on-air light or other
“microphone on” indicator at a remote location. This control function
provides a continuous +5 volt signal at Pin 15 (On Tally) whenever the
module is ON.
This signal can be used to control an externally powered tally light
that requires a continuous signal to function. Or an external tally light
(i.e., LED) can be powered from the input module by connecting the
external LED to Digital Ground (Pin 19) and the On Tally port. In either
case, current should not exceed 30 milliamps.
Tally B
Provides a remote indication that the module’s B source has been
selected. This control function provides a continuous closure (open
collector) between Pin 6 (Tally B) and Digital Ground (Pins 19)
whenever the B source is selected.
This closure can be used to control an externally powered tally light
that requires a continuous closure to function. An external tally light
(i.e., LED) can be powered from the input module by connecting the
external LED to +5V Digital (Pin 18) and the B Tally port. Current
should not exceed 30 milliamps.