Garmin G3X Installation Manual page 298

+12V OUTPUT
LIGHTING BUS GROUND
DC LIGHTING 1
DC LIGHTING 2
DC LIGHTING 3
PWM LIGHTING 1
PWM LIGHTING 2
PWM LIGHTING 3
23.1.9 External Lighting Discrete Inputs
The GAD 27 has 3 active-low discrete lighting inputs. The Light 1 and Light 2 inputs can be connected to
cockpit switches to control the operation of the two supported aircraft external lights. Typically these
inputs are used to control one or two landing lights, or a pair of separate landing and taxi lights.
The Alternating Flash On input can optionally be used to support a cockpit switch to control the flashing
behavior of the aircraft's external lights. If this input is not connected, the external lights may still be set to
flash automatically based on airspeed (see
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)
LIGHT 2 SWITCH
LIGHT 1 SWITCH
ALTERNATING FLASH ON
23.1.10 Motor Disconnect Input
Motor Disconnect is an active low discrete input, that when active, interrupts trim and flap movement.
Connecting this input to a switch is not required, the unit will operate normally when the switch is either
inactive or the input is not used.
The Motor Disconnect input is an active-low discrete input that conforms to the following specification:
Low: Vin < 3.5 VDC, or Rin < 375 Ω (input active, motor movement inhibited)
High: Vin >8 VDC, or Rin > 100k Ω (input inactive, motor movement allowed)
MOTOR DISCONNECT
190-01115-01
Rev. AA
Lighting Bus Outputs
Pin Name
Section 32.4.26).
Pin Name
Pin Name
G3X/G3X Touch Installation Manual - LRU Pinouts
Connector Pin
J271 37
J271 38
J271 42
J271 43
J271 44
J271 45
J271 46
J271 47
Connector Pin
J271 34
J271 35
J271 36
Connector Pin
J271 16
I/O
Out
--
Out
Out
Out
Out
Out
Out
I/O
In
In
In
I/O
In
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