On Wed, 27 Aug 2014, Gregg Eshelman wrote: > Date: Wed, 27 Aug 2014 03:17:56 -0600 > From: Gregg Eshelman <[email protected]> > Reply-To: "Enhanced Machine Controller (EMC)" > <[email protected]> > To: "Enhanced Machine Controller (EMC)" <[email protected]> > Subject: Re: [Emc-users] 5i25 - 7i7x maximum cable length? > > On 8/26/2014 10:12 AM, Peter C. Wallace wrote: > >> 15 ft is possible (~4.5M) depending on how electrically noisy your >> environment is. These cables are standard IEEE-1284 compatible male/male >> printer cable extensions. > > Use high quality, round, shielded cable with twisted pairs, and the > shield connected to the connector housing at both ends. > > I did some searching but wasn't able to find a diagram showing which > wire pairs should be twisted together for IEEE-1284. > > The obvious ones to pair are each of the 8 data lines with one ground > line. Would the other 9 lines need paired up or not? >
On cables that meet the IEEE-1284 spec, all 17 signals have shield pairs also the GND wires are individual (there are 8). The shield wires are terminated in the connector shell > > --- > This email is free from viruses and malware because avast! Antivirus > protection is active. > http://www.avast.com > > > ------------------------------------------------------------------------------ > Slashdot TV. > Video for Nerds. Stuff that matters. > http://tv.slashdot.org/ > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your (")_(") signature to help him gain world domination. ------------------------------------------------------------------------------ Slashdot TV. Video for Nerds. Stuff that matters. http://tv.slashdot.org/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
