Steve Blackmore wrote: > > > Hi Jon - tried 120 Ohm across the inputs - it stopped the line receiver > working? It didn't stop the RECEIVER, it stopped the TRANSMITTER from working. I was already suspecting this, and your report the pull-ups helped confirms that the encoder's transmitter has weak or no pull-up to +5V. The HalScope traces also seemed to show that. > The pull ups on the outputs helped marginally but it's much > better than it was and is quite usable. I'll order some better encoder > cable and will try and rewire. > Well, that MAY help. But, there still seems to be something pretty badly wrong with those encoders, the signals out are just BAD.
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