The GSA-42N is the airliner version of the wet compass. It can be hung in a cradle in front of the windshield. The compass features a switch for backlighting. The switch is fully independent from FS. The GSA-42N is the second generation of this product. The mechanical parts are housed in a cylindrical plastic moulded houde. It comes in Boeing grey and connects in daisy chain to the GSA-055 interface.
power= 5v/12v (included within the flatcable, so only a single connection to the interface is required!)
lights= 2 LED
type daisy chain, 10 pin connector on flat cable (10 wires flatcable)