AS/400 9404 and TWINAX questions...

From: Patrick Finnegan <pat_at_computer-refuge.org>
Date: Wed Sep 29 11:48:30 2004

On Wednesday 29 September 2004 03:37, Vintage Computer Festival wrote:
> On Wed, 29 Sep 2004, Rob O'Donnell wrote:
> > At 14:23 29/09/2004, John Foust wrote:
> > >I agree, and I suspect any straight-through RJ-45 cable
> > >was for a telephone system, not networking. Perhaps
> > >Sellam knows examples.
> >
> > I've encountered flat 8 core cable, terminated with RJ45's, used as
> > patch leads in a Serial environment. They were used with Baydek
> > SMUX serial boards, also seen them used with some Specialix
> > terminal servers, both had RJ45 sockets for the serial ports.
> >
> > Of course, when one of my colleagues tried to use them for Ethernet
> > we had terrible problems. They would just about work (for the
> > short lengths in a patch cabinet) at 10Mbps, but were total no-no
> > at 100Mbps.
>
> You can use just about anything for short runs. Even 100-base-T
> might work with 4-strands of random wire at some minimal distance.
> But if you expect anything to run and run reliably, especially at a
> distance, use properly rated cable :)

Indeed, I have used 10ft piece of round phone cable (not UTP) with RJ45s
to run 100BaseT, and gotten a full 12MB/sec or so out of it. However,
"results may not be typical".

Pat
-- 
Purdue University ITAP/RCS        ---  http://www.itap.purdue.edu/rcs/
The Computer Refuge               ---  http://computer-refuge.org
Received on Wed Sep 29 2004 - 11:48:30 BST

This archive was generated by hypermail 2.3.0 : Fri Oct 10 2014 - 23:37:32 BST