114 Preparation for Operation TB7100 Installation and Operation Manual
© Tait Electronics Limited December 2005
Digital Input Line Actions
No Action  Preset Channel 
Toggle Stand-by Mode  Mute External Audio Input 
Power Sense (Ignition)  Mute Audio Output Path 
Enter Emergency Mode  Unmute Audio Output Path
Send Channel Preset Call  Send Mic Audio To Spkr 
Send Network Preset Call 1 Force Audio PA On 
External PTT 1 and 2 
Force Audio PA Off 
Inhibit PTT  Simulate F1 to F4 Key 
Toggle Tx RF Inhibit  Toggle F1 to F4 Key LED 
Decrement Channel  Toggle Alarm Mode 
Increment Channel  Activate THSD Modem 
Home Channel  RTS Control (DCE) 
BCD Pin 0 to 4 
Digital Output Line Actions
No Action  Signalling Audio Mute Status 
Busy Status  SIBT Received 
Radio Transmission Status  Monitor Status 
Channel Lock Status  Hookswitch Status 
Reflect PTT Status 
Call Setup Status 
External Alert 1 and 2  Control Status Rx (Line 1 to 3) 
Public Address Status  Radio Stunned 
Serial Data Tx In Progress  F1 to F4 Key Status 
Reflect PTT Inhibit Status  FFSK Data Received Status 
Reflect THSD Modem Status CTS Control (DCE)