190-01879-11 GMA 245/245R Installation ManualRev. 6 Page 2-102.9.7 Hardwired Configuration OptionsThe configuration options in Table 2-12 are available by wiring the inputs to a pushbutton to ground (seeFigure C-2 and Figure C-3).Table 2-12 Hardwire Configuration OptionsConnector Pin Description Type FunctionJ2401 16 PILOT ICSKEY* InputIf DIP switch 1 is on, this active low input, whengrounded, will allow microphone audio to the intercomfrom Pilot MIC.J2401 24 COM ACTIVEOUT* OutputThis output is active when Receiving selected COMaudio or when transmitting on the MIC selected COM.This output can be used to connect to other devices toinhibit other devices from playing audio into the GMAwhile there is COM activity.J2402 13 PASSENGERICS KEY* InputIf DIP switch 1 is on, this active low input, whengrounded, will allow microphone audio to the intercomfrom Passenger MIC.J2402 20 COM SWAP* Input When grounded the MIC selected COM will swap.J2402 22 PLAY KEY* InputWhen grounded the last voice recorded message willplay. While playing, if grounded again, the previousmessage will play.J2402 30 COPILOT ICSKEY* InputIf DIP switch 1 is on, this active low input, whengrounded, will allow microphone audio to the intercomfrom Copilot MIC.*Active Low
