190-01115-01
G3X/G3X Touch Installation Manual - LRU Pinouts
Rev. AC
Page 25-8
25.1.11 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)
25.1.12 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)
25.1.13 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
