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- Newsgroups: comp.protocols.appletalk
- Path: sparky!uunet!ukma!darwin.sura.net!zaphod.mps.ohio-state.edu!caen!med.umich.edu!umich.edu
- From: Roger.Wilfong@umich.edu (Roger Wilfong)
- Subject: Re: Crimping 10-Base-T wire
- Message-ID: <19921113124822.Roger.Wilfong@umich.edu>
- Lines: 44
- Sender: news@med.umich.edu
- Organization: UofM Hospitals
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- References: <1992Nov12.082843.4052@memstvx1.memst.edu> <01GR0SN3FMXU00317L@ACAD.FANDM.EDU>
- Date: Fri, 13 Nov 1992 16:48:00 GMT
-
- In Article <1992Nov12.082843.4052@memstvx1.memst.edu> "harrisjw@memstvx1.memst.edu" says:
- > In article <01GR0SN3FMXU00317L@ACAD.FANDM.EDU>, tom@FANDM.BITNET (Tom Mahoney - Electronics and Networks) writes:
- > >>I have a new question. How hard is it to crimp RJ-45s when only using 2 pair
- > >>wire? I believe 10-BASE-T requires using positions 1-2-3-6. I was wondering
- > >>if most people just use 4 pair wire because it would be easier to crimp. I
- > >>know this sounds wasteful, but I was thinking it might be easier. And it's
- > >>there's a bad wire you can work around it.
- > >
- > > We buy 500' or 1000' spools of 4 pair level 4. When installing station cables,
- > > we use all 4 pairs. When making 10Base-T jumpers, I only use the green and o
- > > range pairs, cutting the blue and brown at the jacket. It sounds like it wou
- > > ld be difficult to get the wires in the correct RJ45 slots for crimping, but
- > > it is actually quite easy. Just make sure they're all in the right spot befo
- > > re crimping.
- > >
- > > Remember to keep your pairs together. No split pairs allowed here!
- > >
- > > Tom Mahoney - Computer Electronics Technician
- > > Franklin & Marshall College
- > > Lancaster, PA 17604
- > > (717) 291-4005
- > > Tom@fandm.edu
- > >
- > I was worried I couldn't easily put four wires into position 1-2-3-6, but since
- > you cut back four wires, your doing just that. I thought it might be easier to
- > line up all 8 wires properly and just shove them in and crimp them. Won't the
- > four extra just be ignored. However, if it's easy enough to use just 2 pair, I
- > will use it.
- >
-
- If you were using flat 'silver satin', it would be easier to put all 8 wires
- into the RJ since they are all in a row. However, you're _not_ going to use
- silver satin for 10-Base-T and the twisted pair wires come out in random
- relationships to each other depending on where you cut the wire. Since you
- have to insert the wires one at a time and keep them all in place while you
- crimp, the fewer wires you have, the easier it is.
-