Connector PIN Configurations, Headset Connector

Note: In case of local power use, install a jumper on pins 2 & 3 of U6

CONNECTOR PIN CONFIGURATIONS

Type: XLR-4M (callout 6 in Figure 1)

Pin 1 Headset microphone low

Pin 2 Headset microphone high

Pin 3 Headphone high

Pin 4 Headphone low

Type: One XLR-3M and XLR-3F pair (callout 8 in Figure 1)

Audiocom® Mode (Internal switch SW1 and jumpers JP4, JP5, JP2 and JP1 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 and jumpers JP4, JP5, JP2 and JP1 set to UNBAL position)

Pin 1 Common

Pin 2 +30 VDC input

Pin 3 Intercom audio/call signal