What is Cat V?

RP Henry

unread,

Jul 11, 2002, 4:15:47 PM7/11/02

to

I have a length of 2-pair cable in my hand that is labelled "BERK-TEK 24
AWG CMR 75C (UL) CSA PCC 60C FT4 HYPERGRADE CAT V 096570 FT".

What is CAT V? I am pretty sure it is not CAT 5, but may be similar.

no_one

unread,

Jul 11, 2002, 10:46:37 PM7/11/02

to

I would think the V was the roman numeral for 5.

"RP Henry" <richard...@saic.com> wrote in message
news:3D2DE773...@saic.com...

jim dorey

unread,

Jul 12, 2002, 4:42:07 AM7/12/02

to

i believe category 5 cable has to live up to certain signalling/noise
characteristics, regardless of number of pairs in the wire.

RP Henry wrote:

--
http://www.skaar.101main.net redirects to geocities off hours.
moderator of doper...@yahoogroups.com and wild...@yahoogroups.com
DOM and proud!!!

Da Man

unread,

Jul 12, 2002, 9:03:52 AM7/12/02

to

"jim dorey" <sk...@ns.sympatico.ca> wrote in message
news:3D2E965A...@ns.sympatico.ca...

> i believe category 5 cable has to live up to certain signalling/noise
> characteristics, regardless of number of pairs in the wire.

Cat 5 has to live up to I belive 100 MHz, while Cat 5e has to live up to 300
MHz. I may be a little off in the numbers.

RP Henry

unread,

Jul 12, 2002, 10:30:40 AM7/12/02

to

What I have found out or deduced so far:

Berk-Tek is the manufacturer, although an email response from them is of
little help: they directed me to a PDF document on their website which
shows something else.
24 AWG is the conductor size.
CMR indicates it meets safety (flammability?) requirments for use in
building risers.
75C is a temperature rating.
(UL) CSA PCC 60C are regulatory marks.
FT4 ??
Hypergrade is perhaps a Berk-tek trademark, or at least classification.
CAT V is not CAT 5, which is 4-pair cable everywhere I look. This is
2-pair cable, and my theory is that it is the same rating as CAT 5
except for the reduced conductor count.
096570 is, I presume, a Berk-Tek part number, but running it through
their website search engine produces nothing.
FT ??

RP Henry

unread,

Jul 12, 2002, 11:48:38 AM7/12/02

to

RP Henry wrote:
>
> Da Man wrote:
> >
> > "jim dorey" <sk...@ns.sympatico.ca> wrote in message
> > news:3D2E965A...@ns.sympatico.ca...
> > > i believe category 5 cable has to live up to certain signalling/noise
> > > characteristics, regardless of number of pairs in the wire.
> >
> > Cat 5 has to live up to I belive 100 MHz, while Cat 5e has to live up to 300
> > MHz. I may be a little off in the numbers.
> >
> > >
> > > RP Henry wrote:
> > >
> > > > I have a length of 2-pair cable in my hand that is labelled "BERK-TEK 24
> > > > AWG CMR 75C (UL) CSA PCC 60C FT4 HYPERGRADE CAT V 096570 FT".
> > > >
> > > > What is CAT V? I am pretty sure it is not CAT 5, but may be similar.
> > > >
> > >
> > >
> > > --
> > > http://www.skaar.101main.net redirects to geocities off hours.
> > > moderator of doper...@yahoogroups.com and wild...@yahoogroups.com
> > > DOM and proud!!!
> > >
>

What I have found out or deduced so far (second edition, as we get
smarter):

Berk-Tek is the manufacturer, although an email response from them is of
little help: they directed me to a PDF document on their website which
shows something else.
24 AWG is the conductor size.

CMR 75C (UL) indicates it meets UL safety (fire-spreading resistance)
requirements for use in building risers.
CSA PCC 60C FT4 are similar Canadian regulatory marks.
Hypergrade is perhaps a Berk-Tek trademark, or at least classification.

CAT V is not CAT 5, which is 4-pair cable everywhere I look. This is
2-pair cable, and my theory is that it is the same rating as CAT 5
except for the reduced conductor count.

096570 FT is a running cable-length indication.

Ken Becker

unread,

Jul 13, 2002, 8:59:01 AM7/13/02

to

Hmm...
Sounds like a bidnessperson trying to figure out a way to sell a cable
that ALMOST sounds like CAT 5 - but doesn't exactly meet CAT5
requirements. Anybody remember when RG8/U actually meant something?

Ken Becker