40 TA2922 Universal Line Interface Service Manual© Tait Electronics Limited March 2010If line interface enable/disable control is needed, set the following:Programmable I/O form, Audio tabPTT form, External PTT (1) tabPin Direction Label Action Active Debounce Signal State MirroredIOP_GPIO4 Output DISABLE F1 Key Status Low None Latching NoneRx/PTT Type Tap In Tap In Type Tap In Unmute Tap Out Tap Out Type Tap Out UnmuteRx None A-Bypass In On PTT R7 D - Split Busy DetectEPTT1 T5 A-Bypass In On PTT None C-Bypass Out On PTTField SettingAdvanced EPTT1 PTT Transmission Type VoiceAudio Source Audio Tap In
