[H-GEN] twisted net cable

[Hilton Travis]

[ Humbug *General* list - semi-serious discussions about Humbug and
Unix-related topics. ]

Hi All,

> Joel MICHAEL <j.michael at uq.net.au> wrote:
> :> Oh and is twisted the right term for it?
>
> : personally, i've never used this term for it - normally i use
> "crossover"
> : as the transmit and receive wires are "crossed over"
>
> I agree with Joel here.  The only term I've heard it called is
> 'cross-over'.  The cable itself is Universal Twisted Pair.  This is often
> shortened to just Twisted Pair which may be where the
> confusion arises.  The other common abreviation is UTP btw.
> Cheers,
> 	-Robert

The cable is actually called "Unshielded Twisted Pair" (UTP) AFAIK.  There
is also a "Shielded Twisted Pair" (STP) cable.

What happens when making a crossover cable is that you are wiring up a cable
with a Type-A configuration on one end, and a Type-B configuration on the
other.

If you have a look at all the UTP patch cables and patch bays available, you
will see that some have the wg, g, wo, b, wb, o, wbr, br wiring, and the
rest have the wo, o, wg, b, wb, g, wbr, br configuration.  I cannot remember
which is the "A" and which is the "B", however.

It is a Good Thing (tm) to have all the same type of cables in your network.
It makes no physical difference to the network if they're all "A" or all "B"
cables/wiring, but it makes it easier to manually trace faults if the same
cabling scheme is used throughout, because all the colors line up all the
time.

Regards,
Hilton Travis


--
This is list (humbug) general handled by majordomo at lists.humbug.org.au .
Postings only from subscribed addresses of lists general or general-post.