RE: Re: Punchdown bloack for Cat5e

["Keith Doxey" <ukha@xxxxxxxxxxx>]

Hi Paul,

The biggest problem you will have is that any "through" type
connection
block will have each pair untwisted for about 12mm or more which may well
impact on perfomance especially for gigabit.

One possible option is to use the boxes listed yesterday from Austin Taylor
but instead of using the Strips Conn 237A which have a break jack between
the top and bottom set of terminations, use the Strips Conn 237C.

237C are the same physical size as a 237A and are 10 pairs wide BUT the top
and bottom sets of contacts are NOT connected. Therefore you get 20 pairs
on
a single strip, enough for 5 cables.

If you go down that route then I would advise terminating the cables as
follows

Blue pairs on 1,3,5,7,9 upper
Orange pairs on 2,4,6,8,10 upper
Green pairs on 1,3,5,7,9 lower
Brown pairs on 2,4,6,8,10 lower

Just punch both cables onto the same set of terminals.

The biggest problem will be the space taken by all the cable sheaths.

HTH

Keith

> -----Original Message-----
> From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx]
> On Behalf Of Paul Gale
> Sent: 02 July 2007 10:38
> To: ukha_d@xxxxxxx
> Subject: RE: [ukha_d] Re: Punchdown bloack for Cat5e
>
> I'm still trying to find a solution to the problem though and
> drawing a blank, even when phoning networking suppliers.
>
> What I really want is a high density punch down block like:
>
> http://www.startechtel.com/icc-110-hinged-wiring-block-1.html
>
> That I can connect the two cables together by punching them
> down together.
>
> It mentions high speed data but I couldn't see any specs
> relating to this and I haven't found anything in the UK yet.
>
> Has anyone moved a cabling cabinet and extended cables before?
>
> Paul.
>
>
>
> > -----Original Message-----
> > From: ukha_d@xxxxxxx
> [mailto:ukha_d@xxxxxxx] On Behalf
> > Of Chris Hunter
> > Sent: 02 July 2007 08:27
> > To: ukha_d@xxxxxxx
> > Subject: Re: [ukha_d] Re: Punchdown bloack for Cat5e
> >
> > Thanks ... pretty good, too ...
> >
> > Chris
> >
> >
> > On 2 Jul 2007, at 08:09, Paul Gale wrote:
> >
> > > Well it maxes out over a single file transfer at around
> 35MB/s which
> > > is 293.6Mbps or 0.2936 Gbps - which is obviously more than
three
> > > times the effective transfer rate of 100Mbps Ethernet. These
> > > transfer rates are limited by the disk subsystem max rates
of the
> > > PC's tested.
> > >
> > > Paul.
> >
> >
> >
> > [Non-text portions of this message have been removed]
> >
> >
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