190-01115-01 G3X™/G3X Touch™ Avionics Installation Manual
Rev. AV Page 23-9
23.1.11 Pitch Trim Inputs
The GAD 27 has 4 active low Pitch discrete inputs that allow for manual control of pitch trim motors. Pilot
switches take priority over copilot switches when they disagree unless pilot switches are both inactive.
Copilot trim switches are optional.
These active-low discrete inputs conform to the following specification:
Low: Vin < 3.5 VDC, or Rin < 375 Ω (input active)
High: Vin > 8 VDC, or Rin > 100k Ω (input inactive)
23.1.12 Roll Trim Inputs
The GAD 27 has 4 active low Roll discrete inputs. Pilot switches take priority over copilot switches when
they disagree unless pilot switches are both inactive. Copilot trim switches are optional.
These active-low discrete inputs conform to the following specification:
Low: Vin < 3.5 VDC, or Rin < 375 Ω (input active)
High: Vin > 8 VDC, or Rin > 100k Ω (input inactive)
23.1.13 Yaw Trim Inputs
The GAD 27 has 2 active low Yaw discrete inputs.
These active-low discrete inputs conform to the following specification:
Low: Vin < 3.5 VDC, or Rin < 375 Ω (input active)
High: Vin > 8 VDC, or Rin > 100k Ω (input inactive
Pin Name Connector Pin I/O
PILOT PITCH TRIM UP J271 24 In
PILOT PITCH TRIM DN J271 25 In
COPILOT PITCH TRIM UP J271 26 In
COPILOT PITCH TRIM DN J271 27 In
Pin Name Connector Pin I/O
PILOT ROLL TRIM L J271 28 In
PILOT ROLL TRIM R J271 29 In
COPILOT ROLL TRIM L J271 30 In
COPILOT ROLL TRIM R J271 31 In
Pin Name Connector Pin I/O
YAW TRIM L J271 32 In
YAW TRIM R J271 33 In
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