At 07:37 PM 3/9/2011, Jesse Lackey wrote: >Hello all, I normally use a twisted pair from cat5 cable (or the whole >cable, 2 wires for signal and 1 or 2 for ground as per DMX spec) for >rs485 stuff, but I'd like to get some cable ideal for rs485 with 120ohm >termination. I need to run some short (3-4 foot run) that has to be >near power cables with 20+ amps on them. And, I get asked by customers >about cabling for DMX, and I'd like to have a pointer to "the best" to >give them. Any cable that is rated for use with digital audio signals (AES/EBU)=20 should be acceptable. I regularly use some purple stuff that is rated at 120 Ohms but I=20 don't recall the manufacturer or part number. The stuff is supplied=20 to me when I need to work with it - I don't purchase it myself. I'll call the guys tomorrow and get that info for you. FWIW - CAT5 cable is ideal for DMX - the impedance is bang on the money. dwayne --=20 Dwayne Reid Trinity Electronics Systems Ltd Edmonton, AB, CANADA (780) 489-3199 voice (780) 487-6397 fax www.trinity-electronics.com Custom Electronics Design and Manufacturing --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .