I validated my Assan external module on the T12FG transmitter. when installed it looks like a Star war equipement but it works great. I did again some testing to confirm the difference of behaviour between pin 5 and 6 of the trainer plug. Pin 6 is always ON, which means that as soon as you insert the trainer plug, the Assan Module is switched ON. With pin 5 the module is switched ON at the same time than the radio. I observed the same behaviour on my T12FG or my FF9.