Upgrading from GTN 650 to 650Xi and connecting to (new) dual G5s, I have a couple of questions about the RS 232 and ARINC 429 connections.
The install manuals say to use the MAPMX RS 232 protocol, but is it acceptable to use the AVIATION protocol instead? I already have JPI 830, GMA 350, GTX 330 and FS 210, so the only available GPS data output to the G5 is by splicing into the output to the JPI. It seems to work, but it?s not strictly by the book.
The other issue is that when all set up per the IM for VNAV, the ARINC connections drop out intermittently after a few minutes flying. But when set up for VCALC, it all seems rock solid. Maybe I?ll have to settle for no VNAV - unless anyone has an idea...
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