Terminate shields at the aircraft instrument panel ground bus only. Leave the servo end of the shield floating (unterminated) to prevent ground loop noise. Avionics Interfacing
The System 55X integrates with a wide variety of GPS, HSI, and EFIS systems via digital ARINC 429 buses or traditional analog steering lines (Left/Right, Up/Down deviations). S-tec 55x Installation Manual
Before opening the airframe, ensure you have the following ready: Terminate shields at the aircraft instrument panel ground
Cut all wires to length per the “Aircraft-Specific Addendum” (usually not in the base manual but provided separately for your tail number). Use Tefzel MIL-W-22759/16 wire. Solder D-sub pins per manual’s crimp specifications (do not use generic automotive crimps). Before opening the airframe, ensure you have the
Mounted behind the panel, this solid-state sensor connects to the aircraft’s primary static pressure system to facilitate altitude hold and vertical speed functions. 3. Structural and Mechanical Installation