COMMUNICATIONS SYSTEM – CONTROLS
PTT BUTTONS
1 Trigger button
• pressed to 1st
detent ...................
activates the Press-To-Talk function for
“Cold Mike” intercommunication
(interphone)
• pressed to 2nd
detent ...................
activates the Press-To-Transmit (PTT)
function for radio transmission or
Passenger Addressing
2 Foot switch
• pressed ........... activates the Press-To-Transmit (PTT)
function for radio transmission or Passenger
Addressing
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