Connector Pin Assignments
DV14307.03 Issue 06 February 2021 Transceivers 6200 Series 63
External Mike Switch (/MIKE_SW)
J1-24 /MIKE_SW IN
Configuration selector CFG1 and CFG2.
ACTIVE state - closed contact to GND
• The external mike switch is used for selection between the audio in/out configurations
CFG1 and CFG2.
• When /MIKE_SW is active then configuration CFG2 is in use.
• When /MIKE_SW is inactive then CFG1 is in use.
• The configurations CFG1 and CFG2 contain parameters which are set in the configuration
setup pages (for details, refer to chapter "Fehler! Verweisquelle konnte nicht gefunden
werden.", page Fehler! Textmarke nicht definiert.).
• You can change the configurations during the flight in the configuration setup.
External Intercom Key (IC)
P1-7 IC IN
ACTIVE state - closed contact to GND
• This input has an internal pull up and is LO active.
• Start the intercom with P1-7 to GND:
o When VOX does not work satisfactorily because of extreme loud cockpit environment
caused e.g. by ambient noise.
o When the speaker is enabled in current audio in/out configuration (configuration
setup).
• For installations where automatic intercom operation starts with VOX, the connection of
pin 7 is not necessary.
• While connected to ground, a current of max. 1 mA flows.
Isolation Mode (/ISOL)
J1-20 /ISOL IN
ISOL input for separation from co-pilot
(passenger)
ACTIVE state - closed contact to GND
• The transceivers have two microphone paths.
• You can connect two individual microphones to each microphone path.
• Depending on configuration, it is possible to connect pilot and co-pilot microphones on
one path and two passenger microphones on the second path.
• When /ISOL is active (isolation mode); the passengers are isolated from the pilot intercom
path and from the radio transmission, but they can communicate with each other.
• When /ISOL is inactive; both the pilot path and the passenger path are connected to one
common intercom circuit.
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