View Single Post
Old 02-18-2015, 02:39 PM   #1727 (permalink)
e*clipse
Permanent Apprentice
 
Join Date: Jul 2010
Location: norcal oosae
Posts: 523
Thanks: 351
Thanked 314 Times in 215 Posts
Thank you very much, thingstodo!

I was thinking that the #20 or #18 would also be a bit more resistant to fatigue failure in a vibrating environment.

FWIW, the signal wires coming out of the MGR are about #20. (According to the very scientific measurement done with my wire strippers... )

Anyway I think it's a lot smarter to use something about this big rather than the #28 wire I was originally planning to use.

- E*clipse

P.S. Paul - thanks the programmer connection tips. I'm going to try to use my old MPLAB ICD2 for this.



Quote:
Originally Posted by thingstodo View Post
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.
  Reply With Quote