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1. 06:37 PM - Reverse Engineering JPI Engine Monitor Interfaces (Jared Yates)
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| Subject: | Reverse Engineering JPI Engine Monitor Interfaces |
I have purchased a plane that came with an old JPI EDM-700 engine monitor.
This is the one with the orange and black display that shows bar graphs for
EGT, CHT, etc. It has a data logging capability, but the interface requires
their cable, which I don't have:
https://www.jpinstruments.com/shop/pc-interface-cable-for-edm-700-edm-800-and-edm-760/
This looks like something that I could make out of things I have laying
around the shop, vs spending $40 plus shipping. Does anyone have one
sitting around that they could do some continuity testing on? If the little
plug only has two conductors, I would guess that there must be two pins on
the serial end that they are connected to.
JPI also offers a box that takes the serial from that cable and writes to a
USB drive. They charge $200 for that box, and I'd love to see what's in one
of those.
Another option is to send the unit into JPI, where they will modify it to
have a USB interface for $300.
And of course there is always the option of just pretending like it doesn't
record data, but where's the fun in that?
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