Bought the plane with an Appareo Stratus ESG transponder with ADS-B-Out and a dedicated GPS antenna already installed. No ADS-B-In though so I had to buy a Stratus 3i which is a big old dongle of a device that is plug and play EXCEPT for that 9 pin plug that I couldn't figure out what to do with.
Best I could figure out, the wires in the 9 pin plug had to be incorporated into the existing 37 pin plug in the back of the transponder. So that was today's project, get the harness out, figure out the wiring for the 3i and how an RS232 signal could be sent to the new Artex 345 ELT and get it all done and back in. I had originally thought the RS232 could be pulled directly from the 3i but that wasn't correct.

I won't know if it all works until the plane can be pulled out of the hangar but it took power without making smoke and the ELT is only throwing a no-location error which is correct.
Here's a pic of the 37 pin plug with the new Stratus 3i cable, it's the black one. The two small white wires are for the RS232 signal. The tan wire goes to the altitude encoder and the separate plastic connector is where power comes in.
Has anyone installed this combination before? Anything you'd have done differently? I didn't see too much online about this process so figured it would be worth posting here for the next person.
Best I could figure out, the wires in the 9 pin plug had to be incorporated into the existing 37 pin plug in the back of the transponder. So that was today's project, get the harness out, figure out the wiring for the 3i and how an RS232 signal could be sent to the new Artex 345 ELT and get it all done and back in. I had originally thought the RS232 could be pulled directly from the 3i but that wasn't correct.

I won't know if it all works until the plane can be pulled out of the hangar but it took power without making smoke and the ELT is only throwing a no-location error which is correct.
Here's a pic of the 37 pin plug with the new Stratus 3i cable, it's the black one. The two small white wires are for the RS232 signal. The tan wire goes to the altitude encoder and the separate plastic connector is where power comes in.
Has anyone installed this combination before? Anything you'd have done differently? I didn't see too much online about this process so figured it would be worth posting here for the next person.
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