Garmin G3X Installation Manual page 343

23.11.3 AP Disconnect
AP Disconnect should be connected to an active low push-button switch that disengages the autopilot, and
optionally engages it, if configured. Press and hold the switch to allow for control wheel steering by
disengaging the clutch and servo motor. The AP Disconnect input must be connected to both the pitch and
the roll servos, and can optionally be connected to the yaw damper servo.
AP_DISCONNECT
23.11.4 CAN Bus
This data bus conforms to the BOSCH standard for Controller Area Network 2.0-B. This bus complies
with ISO 11898. See Section 2.3.1.3
CAN_H
CAN_L
CAN_TERM_1
CAN_TERM_2
23.11.5 ID STRAP
The ID Strap inputs are used to configure the GSA 28 as a roll, pitch, or yaw servo by installing a jumper
wire or not installing a jumper wire per the following:
Roll Servo: No jumper wire installed
Pitch Servo: Jumper wire installed from pin 5 to pin 8
Yaw Servo: Jumper wire installed from pin 6 to pin 7
ID_STRAP_1
ID_STRAP_2
ID_STRAP_3/(RS-232 TX for Roll Servo Only)
ID_STRAP_4/(RS-232 RX for Roll Servo Only)
23.11.6 RS-232
Pins 7 and 8 (TX and RX) connect to the GMC 30X RS232 channel 2 on the ROLL SERVO ONLY.
ID_STRAP_3/(RS-232 TX for Roll Servo Only)
ID_STRAP_4/(RS-232 RX for Roll Servo Only)
190-01115-01
Rev. AA
Pin Name
for CAN Bus details.
Pin Name
Pin Name
Pin Name
G3X/G3X Touch Installation Manual - LRU Pinouts
Connector Pin
J281 15
Connector Pin
J281 1
J281 2
J281 3
J281 4
Connector Pin
J281 5
J281 6
J281 7
J281 8
Connector Pin
J281 7
J281 8
Page 23-52
I/O
In
I/O
I/O
I/O
--
--
I/O
In
In
In
In
I/O
Out
In