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The cat 7 was OK, although it's not recommended for use with readers. It turned out to be a problem with the new smaller type of PSU that came with it. After connecting the ground of the RS485 daisy chain cable to the earth lug of the box the reader worked perfectly. I never had to this before but i...

I experienced the same issue with with "invalid forward card reads" when I connected a DR4208S cardreader to a PW50002R board. The voltage at the reader is OK, 13,72V. Die cable itself is OK as well. If I connect the reader directly to the board it works perfectly well. The reader is insta...