alt.certification.network-plus - Question

Author

Question - UTP Cable Ratings

Steve

2002-07-09, 1:25 pm

I have now looked at 3 different sources for the speed rating for Cat
1-5 cables and all three have given me different #'s

Mike's Book 2nd edition

Cat1-voice
Cat2-4 meg
Cat3-16 meg
Cat4-20 meg
Cat5-100Meg

Sybex Book 3rd edition

Cat1-voice
Cat2-4 meg
Cat3-10 meg
Cat4-16 meg
Cat5-100meg

This Link

http://fcit.coedu.usf.edu/network/chap4/chap4.htm

Category 1 Voice Only (Telephone Wire)
Category 2 Data to 4 Mbps (LocalTalk)
Category 3 Data to 10 Mbps (Ethernet)
Category 4 Data to 20 Mbps (16 Mbps Token Ring)
Category 5 Data to 100 Mbps (Fast Ethernet

It seems that sybex and this site are the closest.

What does the test expect you to know?

Who's right in your opinion ????

Thanks

Steve

Stuart

2002-07-09, 1:25 pm

Extract from Microsoft Press N+ Training Kit:

Category Use
1
Voice-grade telephone networks only; not for data transmissions

2
Voice-grade telephone networks, as well as IBM dumb-terminal connections to
mainframe computers

3
Voice-grade telephone networks, 10-Mbps Ethernet, 4-Mbps Token Ring,
100Base-T4 Fast Ethernet, and 100Base-VG-AnyLAN

4
16-Mbps Token Ring networks

5
100Base-TX Fast Ethernet, Synchronous Optical Network (SONET), and Optical
Carrier (OC3) Asynchronous Transfer Mode (ATM)

5e
1000Base-T (Gigabit Ethernet) networks

Brian Schwarz

2002-07-10, 1:25 pm

This page from 3Com seems to back Mike's book (disclaimer - I was a
co-author on the 1st edition):
http://infodeli.3com.com/infodeli/t...sii100/appa.htm

Note the footnote on this page: "For additional information on UTP cable
specifications, refer to publication EIA 568A, EIA/TIA Bulletin: Technical
Systems Bulletin, Additional Cable Specifications for Unshielded Twisted
Pair Cables, TSB-36, Electronic Industries Association."

To really get a final answer, you would have to check the actual standards
(available from www.tiaonline.org) - unfortunately, the standards body
charges for the documents.

It's worth noting (but too new to be on the exam) that an official
definition for Category 6 has finally been established. See the press
release:
http://www.tiaonline.org/media/pres...parelease=02-88

Cheers,

Brian Schwarz

--

____________________________
The opinions expressed here are my
own, and do not reflect those of my
employers - past, present, or future.
____________________________

"Steve" <Steve@user.net> wrote in message
news:9oamiuc34bkv9494c84tduis8
su839ucp5@4ax.com...
> I have now looked at 3 different sources for the speed rating for Cat
> 1-5 cables and all three have given me different #'s
>
> Mike's Book 2nd edition
>
> Cat1-voice
> Cat2-4 meg
> Cat3-16 meg
> Cat4-20 meg
> Cat5-100Meg
>
>
> Sybex Book 3rd edition
>
> Cat1-voice
> Cat2-4 meg
> Cat3-10 meg
> Cat4-16 meg
> Cat5-100meg
>
> This Link
>
> http://fcit.coedu.usf.edu/network/chap4/chap4.htm
>
> Category 1 Voice Only (Telephone Wire)
> Category 2 Data to 4 Mbps (LocalTalk)
> Category 3 Data to 10 Mbps (Ethernet)
> Category 4 Data to 20 Mbps (16 Mbps Token Ring)
> Category 5 Data to 100 Mbps (Fast Ethernet
>
> It seems that sybex and this site are the closest.
>
> What does the test expect you to know?
>
> Who's right in your opinion ????
>
> Thanks
>
> Steve
>
>

cllogan

2002-07-10, 2:25 pm

Cat3 is rated for 16 MBps (ethernet), so it's the cable of choice for
10baseT networks.

For 16MBps Token Ring, you'd have to step up to Cat 4.

Also know that 100baseT4 specifications allow for use over Cat3 existing
wiring (as opposed to the standard Cat5 for 100MBps).

Hope that helps. When all else fails, check www.howstuffworks.com They've
got great info on all IT topics.

Carly
"Steve" <Steve@user.net> wrote in message
news:9oamiuc34bkv9494c84tduis8
su839ucp5@4ax.com...
> I have now looked at 3 different sources for the speed rating for Cat
> 1-5 cables and all three have given me different #'s
>
> Mike's Book 2nd edition
>
> Cat1-voice
> Cat2-4 meg
> Cat3-16 meg
> Cat4-20 meg
> Cat5-100Meg
>
>
> Sybex Book 3rd edition
>
> Cat1-voice
> Cat2-4 meg
> Cat3-10 meg
> Cat4-16 meg
> Cat5-100meg
>
> This Link
>
> http://fcit.coedu.usf.edu/network/chap4/chap4.htm
>
> Category 1 Voice Only (Telephone Wire)
> Category 2 Data to 4 Mbps (LocalTalk)
> Category 3 Data to 10 Mbps (Ethernet)
> Category 4 Data to 20 Mbps (16 Mbps Token Ring)
> Category 5 Data to 100 Mbps (Fast Ethernet
>
> It seems that sybex and this site are the closest.
>
> What does the test expect you to know?
>
> Who's right in your opinion ????
>
> Thanks
>
> Steve
>
>

Tech-7

2002-07-15, 9:25 pm

i thought i was a dork for going to howstuffworks

--
Remember when you were young,
You shone like the sun.
Shine on you crazy diamond
"cllogan" <cllogan@mail.aacc.cc.md.us> wrote in message
news:LU%W8.347$zG4.19084@dca1-nnrp2.news.algx.net...
> Cat3 is rated for 16 MBps (ethernet), so it's the cable of choice for
> 10baseT networks.
>
> For 16MBps Token Ring, you'd have to step up to Cat 4.
>
> Also know that 100baseT4 specifications allow for use over Cat3 existing
> wiring (as opposed to the standard Cat5 for 100MBps).
>
> Hope that helps. When all else fails, check www.howstuffworks.com
They've
> got great info on all IT topics.
>
> Carly
> "Steve" <Steve@user.net> wrote in message
> news:9oamiuc34bkv9494c84tduis8
su839ucp5@4ax.com...
> > I have now looked at 3 different sources for the speed rating for Cat
> > 1-5 cables and all three have given me different #'s
> >
> > Mike's Book 2nd edition
> >
> > Cat1-voice
> > Cat2-4 meg
> > Cat3-16 meg
> > Cat4-20 meg
> > Cat5-100Meg
> >
> >
> > Sybex Book 3rd edition
> >
> > Cat1-voice
> > Cat2-4 meg
> > Cat3-10 meg
> > Cat4-16 meg
> > Cat5-100meg
> >
> > This Link
> >
> > http://fcit.coedu.usf.edu/network/chap4/chap4.htm
> >
> > Category 1 Voice Only (Telephone Wire)
> > Category 2 Data to 4 Mbps (LocalTalk)
> > Category 3 Data to 10 Mbps (Ethernet)
> > Category 4 Data to 20 Mbps (16 Mbps Token Ring)
> > Category 5 Data to 100 Mbps (Fast Ethernet
> >
> > It seems that sybex and this site are the closest.
> >
> > What does the test expect you to know?
> >
> > Who's right in your opinion ????
> >
> > Thanks
> >
> > Steve
> >
> >
>
>

-----= Posted via Newsfeeds.Com, Uncensored Usenet News =-----
http://www.newsfeeds.com - The #1 Newsgroup Service in the World!
-----== Over 80,000 Newsgroups - 16 Different Servers! =-----

cllogan

2002-07-16, 8:25 am

LOL tech. Afterall, aren't we ALL dorks?

I say, any tool or resource that furthers our understanding is invaluable,
and if the dork fits, wear it PROUDLY.

LOL
Carly

"Tech-7" <dezul@eznet.net> wrote in message
news:3d338c27_3@corp.newsgroups.com...
> i thought i was a dork for going to howstuffworks
>
> --
> Remember when you were young,
> You shone like the sun.
> Shine on you crazy diamond
> "cllogan" <cllogan@mail.aacc.cc.md.us> wrote in message
> news:LU%W8.347$zG4.19084@dca1-nnrp2.news.algx.net...
> > Cat3 is rated for 16 MBps (ethernet), so it's the cable of choice for
> > 10baseT networks.
> >
> > For 16MBps Token Ring, you'd have to step up to Cat 4.
> >
> > Also know that 100baseT4 specifications allow for use over Cat3 existing
> > wiring (as opposed to the standard Cat5 for 100MBps).
> >
> > Hope that helps. When all else fails, check www.howstuffworks.com
> They've
> > got great info on all IT topics.
> >
> > Carly
> > "Steve" <Steve@user.net> wrote in message
> > news:9oamiuc34bkv9494c84tduis8
su839ucp5@4ax.com...
> > > I have now looked at 3 different sources for the speed rating for Cat
> > > 1-5 cables and all three have given me different #'s
> > >
> > > Mike's Book 2nd edition
> > >
> > > Cat1-voice
> > > Cat2-4 meg
> > > Cat3-16 meg
> > > Cat4-20 meg
> > > Cat5-100Meg
> > >
> > >
> > > Sybex Book 3rd edition
> > >
> > > Cat1-voice
> > > Cat2-4 meg
> > > Cat3-10 meg
> > > Cat4-16 meg
> > > Cat5-100meg
> > >
> > > This Link
> > >
> > > http://fcit.coedu.usf.edu/network/chap4/chap4.htm
> > >
> > > Category 1 Voice Only (Telephone Wire)
> > > Category 2 Data to 4 Mbps (LocalTalk)
> > > Category 3 Data to 10 Mbps (Ethernet)
> > > Category 4 Data to 20 Mbps (16 Mbps Token Ring)
> > > Category 5 Data to 100 Mbps (Fast Ethernet
> > >
> > > It seems that sybex and this site are the closest.
> > >
> > > What does the test expect you to know?
> > >
> > > Who's right in your opinion ????
> > >
> > > Thanks
> > >
> > > Steve
> > >
> > >
> >
> >
>
>
>
>
> -----= Posted via Newsfeeds.Com, Uncensored Usenet News =-----
> http://www.newsfeeds.com - The #1 Newsgroup Service in the World!
> -----== Over 80,000 Newsgroups - 16 Different Servers! =-----

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