Today's Message Index:
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1. 06:13 AM - Re: AERA660 RS232 Output Test? (dj_theis)
2. 09:10 AM - Re: AERA660 RS232 Output Test? (farmrjohn)
3. 02:05 PM - Re: AERA660 RS232 Output Test? (Eric Page)
Message 1
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| Subject: | Re: AERA660 RS232 Output Test? |
John,
You asked this question in the original post:
> Also, would testing continuity from the Aera d-sup to the monitor or ELT connection
be worthwhile? The other 232 output on the Aera is working properly connected
to a GPS175. John
Yes, you can (and I would) check continuity from the Aera to the receiving devices.
This includes verifying continuity between the ground wire on the ELT, the
engine monitor and the ground wire on the Aera.
If its possible to do, I would also separate the ELT from the engine monitor and
test them separately (both for continuity of the tx and ground from the Aera
as well as checking to see if they receive the NEMA signal without the other
in the circuit). Either the ELT or the engine monitor could be the bad actor
and killing the transmission from the Aera.
--------
Dan Theis
Scratch building Sonex #1362
Revmaster Alternator problem solved.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=515609#515609
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| Subject: | Re: AERA660 RS232 Output Test? |
I hadn't checked the grounds for the engine monitor and elt. I had also considered
disconnecting the connectors for the monitor and elt in turn to see if one
could be a bad actor. Unfortunately separating the feeds won't work due to
a solder splice.
It also looks as if using the GPS175 for the gps source may not be an option.
I don't see NMEA9600 as an option for the serial ports configurations so have
an inquiry into Garmin and E.I. in that regard.
John
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=515610#515610
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| Subject: | Re: AERA660 RS232 Output Test? |
farmrjohn wrote:
> ...the engine monitor is not receiving GPS data and the ELT gps reception test
does not indicate data in (led connected to test lead). [...] The other 232
output on the Aera is working properly connected to a GPS175.
I've been silently following this since you've been getting great troubleshooting
advice, but I'm not sure I understand your setup. A couple of questions:
1. If I understood your original post correctly, the aera 660 is providing position
data to the GPS175. If that's right, why is it set up this way when the
GPS175 is an approach-certified WAAS receiver itself? Do they cross-compare and
alarm if they disagree?
2. I'm puzzled why, with the GPS175 installed, you're using a portable device to
feed GPS data to permanently installed avionics. The GPS175 has three configurable
RS-232 output ports. Are all three already in use?
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=515614#515614
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