Intercom Channel Connectors
Type: One XLR-3M and XLR-3F pair for each channel
Audiocom® Mode (Internal switch SW1 set to BAL position)
Pin 1
Common
Pin 2
Intercom audio low and +24 VDC input
Pin 3
Intercom audio high and +24 VDC input
Clear-Com Mode (Internal switch SW1 set to UNBAL position)
Pin 1
Common
Pin 2
+24 VDC input
Pin 3
Intercom audio high
Expansion Out
Type: 2.0 mm stereo jack
Tip: Talk output
Ring: Listen input
Sleeve: Common
External Power
Type: 2.0 mm jack
Internal pin: positive (+)
External shell: negative (-)
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