Hello all,
I have near equal amount of automation gear here that use either single or differential output and input... I'm wondering what the best and/or usual workaround is in the following situations:
single logic output >> differential logic input
single PWM output >> differential PWM input
single analog +/-10v output >> differential analog +/-10v input
differential output >> single input
Word on the street is that the cool kids are putting their single ended signal to the +ve differential input while the ground of the output device is the other twisted pair and therefore connected to the -ve differential input. The ground of the recieving device is then connected to the shield of the cable. I could have this wrong of course.
I have seen differential line drivers also but they seem to work with digital signals only. I've found it hard to find one that could do +/- 10V analog motor commnd - let alone the probable annoyance of having to build a pos/neg supply for it. :tired:
differential output >> single input - I imagine you just connect the +ve output to the single input - easy as that ... (?)
Am I getting too involved in this issue ? What is the simplest way that works to do this ?
cheers all,
nick