Using The Local Headset; Local Headset Pinout And Wiring - Pliant Crewcom CCU-22 Operating Manual

Using the Local Headset

Talk and Volume Controls for the headset are located to the right of the connector.
A white "TALK" LED will illuminate when the mic is enabled. CrewCom uses an intelligent latching method for talk
buttons. Quickly pressing and releasing TALK will cause the mic button to latch. The white "TALK" LED will stay lit and
the microphone will remain enabled. Pressing and holding TALK will cause the button to act in a momentary fashion.
The white "TALK" LED will remain lit and the microphone will remain enabled only as long as the button is pressed.

Local Headset Pinout and Wiring

See the SmartBoom PRO and SmartBoom LITE data sheets for the pin wiring information for Pliant's SmartBoom
headsets.
Local Headset Connection Wiring
XLR Pin # Description
Pin 1 Mic −
Pin 2 Mic +
Pin 3 Speaker −
Pin 4 Speaker +
Figure 37 4-Pin XLR Male Local Headset Connection
Operation - 71