Instrument Switching Module

The instrument switching module on the P5 overhead panel provides discretes to the display electronics unit (DEU) for display switching when you move the switch to the both on 1 or both on 2 position.

With the switch in the both on 1 position, the DEU’s use VOR data from VOR/MB receiver 1 for display. With the switch in the both on 2 position the DEU’s use VOR data from VOR/MB receiver 2 for display.

The instrument switching module also sends discretes to the FCC when you move the switch out of the normal position.

E