DEC BC09J cable

From: Tothwolf <tothwolf_at_concentric.net>
Date: Thu Feb 28 21:29:52 2002

On Thu, 28 Feb 2002, Pete Turnbull wrote:
> On Feb 28, 6:16, Tothwolf wrote:
>
> > Cat5 (category 5 rated) cable is more appropriately called UTP
> > (unshielded twisted pair) cable. UTP cable is not shielded, and for
> > serial applications, the category rating isn't very important. Keep
> > in mind that category '5e' cable is much more difficult to work with
> > compared to category 5/4/3 if you are planning to install RJ45
> > connectors yourself, due to molded pairs.
>
> I've only seen one brand of Cat5e with pairs bonded. Almost all the
> Cat5e I've worked with is very easy to untwist. "Cat6" is usually
> bonded, though.

Most all the Cat5e I've punched down or crimped connectors on has been
Beldin brand, so it could be that many of the other brands do not bond the
pairs. One good thing about bonded pairs with Cat5e, is that it will hold
up better to rough conditions when pulling the stuff through walls.

> > As far as wire colors go, UTP cable has a standard color code for the
> > individual pairs, but the pinout varies depending on the application
> > for the cable.
>
> There are three standards for that, TIA 568A, TIA 568B, and USOC.

Exactly.

-Toth
Received on Thu Feb 28 2002 - 21:29:52 GMT