According to the EIA/TIA 568A Horizontal Cabling max is 90 meters. Its also
allows an additional 10 meters from work area, telecommunications closet
patch(HCC,ICC) and jumper cables.

Ther'e a graphic at :
http://www.anixter.com/techlib/standard/cabling/tiabook2.htm

That's where I get the 90 meters.
I saw something in my CBT's about 50 meter, I will get back to the list on
that one.

--Patrick Black

----- Original Message -----
From: Franklin Brumett <[log in to unmask]>
To: <[log in to unmask]>
Sent: Saturday, October 16, 1999 6:07 AM
Subject: Re: [PCBUILD] cat 5 100mbps network cable problems


> Patrick,
>
> Why only 90 meters?  Is it because the electrical length and physical
lengths
> don't
> always agree?
>
> Frank :<)
>
> Patrick C Black wrote:
>
> > Actually according to the EIA/TIA -568B specs, the max length of cat 5
cable
> > from the Wiring Closet(could be hub, IDF, or MDF)  to the workstation is
> > 100meters.
> >
> > Anything beyond 100 meters becomes too distorted and week for the NIC to
> > translate and would require a repeater or an active hub to correct the
> > problem.  However In in the Cisco class it really shouldn't go beyond 90
> > meters.
> >
> > --Patrick Black

>
>

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