Type-1 cabling is more commonly known as "Shielded Twisted Pair." It's a
heavy
gauge 2 pair cabling that was used in legacy Token Ring environments, before
UTP
caught on. It's excellent cable, due to it's braided shielding. It's flaws
were it's cost, and it's size (very thick, and somewhat difficult to work
with).
It's clear to me where Timothy is coming from... He's got a client with an
existing Token Ring network looking to migrate to Fast Ethernet, and they'd
like
to leverage what must have been a tremendously expensive cabling
infrastructure
since they've already paid for it.
>From http://www.ece.ac.ae/techstuff/networking/fetech.html :
---[Pasted Text]---
100BASE-TX Physical Layer
This physical layer defines the specification for 100BASE-T Ethernet over two
pairs of Category 5 UTP (unshielded) or Type 1 STP (shielded) twisted-pair
wire.
With one pair for transmit and the other for receive, the wiring scheme is
identical to that used for 10BASE-T Ethernet. The UTP connector, an RJ-45, is
also identical to the one used for 10BASE-T Ethernet, wired in exactly the
same
fashion. However, the punch-down blocks in the wiring closet must be
Category 5
certified. Where these blocks do not meet the standard, an upgrade is
necessary.
The STP connector is the same DB-9 used for Token Ring networks.
---[End Paste]---
It would appear that there is nothing to prevent the use of Fast Ethernet
over
Type-1, but I've never seen it done. You can be sure that someone has done
it
though... Keep looking...
Alan
----- Original Message -----
From: "Brijesh"
To:
Sent: Thursday, May 17, 2001 3:55 PM
Subject: Re: 100mb Ethernet over Type 1 ... [7:4897]
> What is type 1 cabling? Please let me know. What I have implemented is
> Category 3,4, and 5 UTP cabling.
>
> Brijesh
> ----- Original Message -----
> From: "Hornbeck, Timothy"
> To:
> Sent: Friday, May 18, 2001 12:54 AM
> Subject: 100mb Ethernet over Type 1 ... [7:4897]
>
>
> > Is it possible to run 100mb Ethernet over Type1 cabling? If so what are
> > some of the issues in doing so? Looking to cut some costs on a project.
> >
> > Timothy J. Hornbeck
> > Technical Analyst III
> > Infrastructure Implementation - LAN/WAN
> > "6EQUJ5" - By Unknown (recorded at OSU "Big Ear")
> > FAQ, list archives, and subscription info:
> http://www.groupstudy.com/list/cisco.html
> > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
> FAQ, list archives, and subscription info:
http://www.groupstudy.com/list/cisco.html
> Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=4911&t=4897
--------------------------------------------------
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
