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Posted

 

 

What do these arrows mean? Sorry for the dumb question, I just don't want to bother my avionics guy this weekend. This is for a GMA345 

 

image.png.29ae5db5dee66557db96e61e0e213691.png

Posted

Typically indicates input vs. output.  Weird that some don't have any indication but could be bi-directional (although the labels are not consistent with that).

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Posted

That looks like part of a Garmin audio panel schematic. As @MikeOH said, the arrows indicate inputs vs. outputs. The lines with no arrow should have an arrow at the other end of the line where it connects to another box.

Posted

in the Garmin manuals , there is usually a table for each connector that describes each pin and if it inputs or outputs signal 

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