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Reply to "Design of a $10-20 DCS-TIU Port Tester Tool?"

The long wait is over, I finally got the 10 boards from SEEED Studio.

Here's the tester after I put it together, one small glitch in the layout, I got the pot backwards.  Didn't have one to look at and thought the legs went the other way.  Still works, you just have to adjust it from across the board.

I connected it to a TIU and fired it up.  It calibrated just fine, so I think it's probably doing it's intended purpose.  I have to do some more testing with various signal levels to see how it reacts, but it seems to function as expected.  I didn't have the 330 ohm resistors for the LED's, but it's perfectly happy with 470 ohm resistors.  The large leads go to the TIU, the board is powered through the TIU, so that's the only connection required.

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OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
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