Intercom PTT switches

[hstaton]

The schematic in the install manual indicates that the line from each PTT switch is connected to each mic jack and shielded. I am using Infinity stick grips and wish to wire the PTT line to one of the grip switch outputs. Since this connection is merely a ground input (my perception, at least), does it have to be shielded and connected to the mic? I would prefer to connect it directly to the Intercom from the sticks.

 

[TRCsmith]

You Can do that! Just make sure your ground is from or to the intercom gnd. It will sometimes work to acft gnd, but it is not the correct way.