10
Communication
Communication is enabled by a Push-to-Talk (PTT) switch in the Left earcup. This switch turns the boom
microphone on and off and connects separate PTT control lines to activate communication separately
through the intercom and to the radio. The PTT switch operates as follows:
Switch Position Operation
Rear (latching) position
Boom microphone and PTT Intercom line connected to intercom
Center position
Boom microphone and both PTT lines disconnected
Forward (momentary)
position
Boom microphone and PTT Radio line connected to intercom
PTT ON
(Latched)
PTT OFF
PTT ON
(Momentary)
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