The Scout uses a 4 pin aviation mic plug. According to the manual:
pin 1: mic
pin 2: gnd
pin 3: PTT
pin 4: +4v dc
Because there is no audio output on the mic connector, we’ll need to get it from AUDIO socket like it is done in case of many mobile radios. Here’s ICOM example:
The cable pinout would look like this:
MIC pin #1 → 3.5mm TRRS ring1 (RIG_AFIN)
MIC pin #2 → 3.5mm TRRS sleeve (GND)
MIC pin #3 → 3.5mm TRRS ring2 (RIG_PTT)
AUDIO tip → 3.5mm TRRS tip (RIG_AFOUT)
AUDIO sleeve → 3.5mm TRRS sleeve (GND)
Because CAT control is not utilized in this case, the cable will work with Digirig in any configuration.
Please post your questions and report the results of your builds here.