eric F.

@ef1j95

Interface wiring and pcb

9/28/2019, 9:39:52 PM

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eric F.

@ef1j95

Basically a current loop to RS-232 adapter...

9/28/2019, 9:42:41 PM

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eric F.

@ef1j95

Well, it’s a little more than just current loop adapter. The power unit interfaces directly with the EM and serializer. I have better insight into where signals are going and how power is distributed based on this teardown. But man, it’s convoluted.

9/29/2019, 11:38:01 AM

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eric F.

@ef1j95

Power unit pcb. Some traces were cut with a mill, apparently. The pcb dye penetrates more deeply on one side.

9/29/2019, 12:36:30 PM

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