EN Dateq BCS70 Manual BCS73(E) external hybrid input module 13
BCS73(E) connector board
GAIN ADJUST The levels of the audio signal from the external
hybrid (receive) and the return audio signal to the
external hybrid (send) can be trimmed. Use a small
screw driver to adjust the trimmers in the holes
marked ‘send’ and ‘receive’.
AUDIO Electronically balanced audio input and output for
audio coming from the external hybrid and return
audio to the external hybrid (QDM² return) on 9-pin
female Sub-D connector.
REM OT E Remote control for the external hybrid on 9-pin male
Sub-D connector.
BCS73(E) Audio (Sub-D 9-pin female)
Pin Function Type
1 Audio Send + (audio to external hybrid) Out
6 Audio Send - (audio to external hybrid) Out
2 Audio Send GND A-GND
7 GND A-GND
3 Frame GND FRAME
8 GND A-GND
4 Audio Receive GND A-GND
9 Audio Receive - (audio from external hybrid) In
5 Audio Receive + (audio from external hybrid) In
BCS73(E) Remote (Sub-D 9-pin male, Telos ONE compatible)
Pin Function Type
1 External hybrid ON switch (opto-coupler collector) Out
6 External hybrid ON / OFF switch common(opto-couplers emitter) Out
2-
7 External hybrid OFF switch (opto-coupler collector) Out
3-
8-
4-
9 Telephone line ‘A’-lead (used for ring-detector only) In
5 Telephone line ‘B’-lead (used for ring-detector only) In
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