Garmin GMA 342, Руководство по установке

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190-01878-02 GMA 342/345 Installation Manual
Rev. 5 Page 2-12
2.8.7 Hardwired Configuration Options
The configuration options in Table 2-10 are available by wiring the inputs to a pushbutton to ground (see
Figure C-2 and Figure C-3 ).
Table 2-10 Hardwire Configuration Options
Connector Pin Description Type Function
J3401 16
PILOT ICS
KEY*
Input
If DIP switch 1 is on, this active low input, when
grounded, will allow microphone audio to the intercom
from Pilot MIC.
J3401 24
COM ACTIVE
OUT*
Output
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 342/345 while there is COM activity.
J3402 13
PASSENGER
ICS KEY*
Input
If DIP switch 1 is on, this active low input, when
grounded, will allow microphone audio to the intercom
from Passenger MIC.
J3402 20 COM SWAP* Input
When grounded the MIC selected COM will swap. For
the GMA 345 3-COM unit, this cycle includes selection
of COM 3 MIC (1, 2, 3, 1, 2, 3, ...).
J3402 22 PLAY KEY* Input
When grounded the last voice recorded message will
play. While playing, if grounded again, the previous
message will play.
J3402 30
COPILOT ICS
KEY*
Input
If DIP switch 1 is on, this active low input, when
grounded, will allow microphone audio to the intercom
from Copilot MIC.
J3402 19
PA MODE
SELECTED*
Output This output is active when the GMA 342/345 is in PA
mode.
J3402 12 PA MUTE OUT* Output This output is active when the GMA 342/345 is in PA
mode, and the Pilot or Copilot PTT is active.
*Active Low