jotron TRON AIR - Remote Connector Interface

16 98540_UM_ AIR_ D
3.2 Remote connector
The remote connector is located at the top of the radio.
For connection of external equipment, the connected equipment must
have a shielded connection cable.
Pin
no.
De-
scription
Function description
1
SPKR
CTRL
External speaker control. Connecting this line to 0V and the
internal speaker will be switched of.
2
SPKR
External speaker output.
3
MIC
CTRL
External microphone control. Connecting this line to 0V and the
internal microphone will be switched of.
4
MIC
External microphone input.
5
0V
0 Volt of the TronVHF.
6
PTT/
SDA
External PTT. Connecting this line to 0V enables transmitting.
If SCL is connected to 0V during power up, this line will work as
I
2
C-bus line SDA (Only in use during channel programming).
7
SCL
SCL line of I
2
C-bus. (Only in use during channel programming)