If line interface enable/disable control is needed, set the following:
Pin
Direction
IOP_GPIO4 Output
Programmable I/O form, Audio tab
Rx/PTT Type Tap In
Rx
None
EPTT1
T5
PTT form, External PTT (1) tab
Field
Advanced EPTT1
40
Label
Action
DISABLE
F1 Key Status
Tap In Type Tap In Unmute
A-Bypass In
On PTT
A-Bypass In
On PTT
PTT Transmission Type
Audio Source
Active
Debounce Signal State
Low
None
Latching
Tap Out
Tap Out Type Tap Out Unmute
R7
D - Split
None
C-Bypass Out
Voice
Audio Tap In
TA2922 Universal Line Interface Service Manual
© Tait Electronics Limited March 2010
Mirrored
None
Busy Detect
On PTT
Setting