190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts
Rev. AC Page 25-54
25.12.7 Trim
The trim inputs should connect to the panel trim switch. The trim outputs should connect to the trim servo,
maximum output current of the trim outputs is 1 Amp. If the GSA 28 is not powered, a fail-safe feature
causes the trim inputs to connect directly to the trim outputs. If the servo is powered and configured for
speed scheduling, the servo drives the trim outputs based on the trim inputs and aircraft speed. If the servo
is powered with the autopilot and auto trim feature is enabled, the servo has full control of the trim outputs.
A removal adapter (GPN 011-03158-00) is provided (with each GSA 28 connector kit) that can be used
when a GSA 28 is removed. The adapter keeps that node on the CAN bus in the same state as when the
servo was connected (either terminated or un-terminated). The adapter also allows trim signals to pass
through when the servo is removed.
Pin Name Connector Pin I/O
TRIM_IN_1 J281 11 In
TRIM_IN_2 J281 12 In
TRIM_OUT_1 J281 13 Out
TRIM_OUT_2 J281 14 Out
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