ASL INTERCOM PS 6379 MK2 User Manual page 20

Pin 2. Signal +
Pin 3. Signal -
35 AUX SELECT switch (one per channel)
A 3-position switch to route either AUX 1 or AUX 2 or AUX 3 to the corresponding channel
34 AUX INPUT connectors + ground lift switches
These three XLR-3 female connectors are inputs for auxiliary (AUX) audio signals.
The inputs are electronically balanced and accept line level audio signals. For routing
these AUX signals to the intercom channels, see #35.
Pin assignment of all AUX input connectors:
Pin1. 0V / ground
Pin 2. Signal +
Pin 3. Signal -
35 AUX SELECT switch (one per channel)
A 3-position switch to route either AUX 1 or AUX 2 or AUX 3 to the corresponding channel
36 IFB mode switches E and F
To put channel E and/or F into IFB mode
37 PGM INPUT connector + ground lift
This XLR-3 female connector is an electronically balanced input for line level audio signals.
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