RE: Re: Punchdown bloack for Cat5e

["Paul Gale" <groups2@xxxxxxxxxxxxxxxx>]

Thanks Keith :)

I'll have a look at them too - the parts I posted actually weren't too
expe=
nsive I think - the next product up (in a metal frame) is around =A3120
for=
a 300 pair kit. Given that they're Cat5e rated anyway, not too bad???

Paul.



> -----Original Message-----
> From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On Behalf
> Of Keith Doxey
> Sent: 02 July 2007 11:58
> To: ukha_d@xxxxxxx
> Subject: RE: [ukha_d] Re: Punchdown bloack for Cat5e
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> Hi Paul,
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> 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.
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> 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.
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> 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.
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> If you go down that route then I would advise terminating the cables
as
> follows
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> 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
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> Just punch both cables onto the same set of terminals.
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> The biggest problem will be the space taken by all the cable sheaths.
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> HTH
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> Keith
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> > -----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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