On 2010-06-05, Jon Elson wrote:
Ignoramus21167 wrote:


I will check what Jon's PPMC does, but I think that he takes 5v
differential signals.

The PPMC has jumpers to set each encoder for differential or
single-ended, and provides up to 200 mA at 5 V to each encoder with a
self-resetting thermal "fuse" (PolySwitch). It also has a termination
resistor (120 Ohms) when in differential mode to absorb reflections on
the lines.

It looks like you have provided everything, and that with differential
encoders, no additional noise suppression is needed. Neat. Thanks

i