[amsat-bb] IC-910 mic connector

For you 910 owners

I am configuring a sequencer for my IC-910.  On the mic connector, what is the +8Vdc 10ma on pin 2 used for?  I am tapping into the PTT for triggering the sequencer and just trying to figure it all out.

Thanks

73 Bob W7LRD Washington State AMSAT area coordinator