Quote:
Originally Posted by e*clipse
Another problem I'm working on uses differential pair signalling. In this case, I understand a twisted pair cable is the best solution, but I'm not sure how a shield or ground surface plays into it. Thingstodo - could you ask about differential pair signals? Any advice from the instrument supervisor would be invaluable.  |
I forgot to ask about the differential pair thing yesterday.
Today's info - put the differential signal on a single pair to get the most benefit from the shield. The rest of the stuff about shields applies
As for the gauge, #18 was to allow our HART signals to go 2500 feet (!!) with OK losses for signal based on resistance. For short runs almost any gauge will do as long as the cable is stranded. There is no RIGHT and WRONG, more like Better and OK.