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Old 05-20-2022, 11:59 PM
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rv8ch rv8ch is offline
Join Date: Feb 2005
Location: LSGY
Posts: 4,895

Originally Posted by Dragonfly View Post
Actually trying to troubleshoot a system already installed. It is the sole engine data provider, not what I would choose personally but it's there (clients aeroplane).

The second unit is labelled 'Slave', on a factory label, and only has one D-Sub socket on the back instead of the usual two.

Just after a pin out to check continuity really, not pin out of the Master unit (I have those as they are available on the GRT website) but the Slave.
I know that they exchange info via RS-232 so I'd expect to see 4 total wires used on the slave - RXD, TXD, 12v, Ground. You might want to drop a mail to the boys in Michigan ( to help figure this one out.
Mickey Coggins
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