Table 2-12 Hardwire Configuration Options - Garmin GMA 245 Installation Manual

2.9.7 Hardwired Configuration Options
The configuration options in Table 2-12 are available by wiring the inputs to a pushbutton to ground (see
Figure C-2 and Figure C-3).
Connector Pin
PILOT ICS
J2401 16
KEY*
COM ACTIVE
J2401 24
OUT*
PASSENGER
J2402 13
ICS KEY*
J2402 20 COM SWAP*
J2402 22 PLAY KEY*
COPILOT ICS
J2402 30
KEY*
*Active Low
190-01879-11
Rev. 6

Table 2-12 Hardwire Configuration Options

Description Type
Input
Output
Input
Input
Input
Input
Function
If DIP switch 1 is on, this active low input, when
grounded, will allow microphone audio to the intercom
from Pilot MIC.
This output is active when Receiving selected COM
audio or when transmitting on the MIC selected COM.
This output can be used to connect to other devices to
inhibit other devices from playing audio into the GMA
while there is COM activity.
If DIP switch 1 is on, this active low input, when
grounded, will allow microphone audio to the intercom
from Passenger MIC.
When grounded the MIC selected COM will swap.
When grounded the last voice recorded message will
play. While playing, if grounded again, the previous
message will play.
If DIP switch 1 is on, this active low input, when
grounded, will allow microphone audio to the intercom
from Copilot MIC.
GMA 245/245R Installation Manual
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