Does patch-panels affect network speed? - Page 2

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Re: Does patch-panels affect network speed?
brunogirard1970@gmail.com writes:
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Yes. A professional punchdown shouldn't have that much untwisted wire.

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No, never use shielded cable for ethernet.

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For whenever 10GBase-T copper switches will be afordable (right now,
its $1000 a port), plain Cat6 will support 10Gbps speeds at up to
55m. You need Cat6A cabling to reach 100m at 10Gbps. At that point,
you need to have Cat6 patch panels, and Cat6 patch cables as well.
Regular Cat5e patch panels and patch cables will fail.
There's never going to be pulling them out and reterminating, any
professional cable person will pull new cable for new panels.



Re: Does patch-panels affect network speed?

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Why?

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I already have cat6 patch panels and cat6a cables.  Everything is set
for future 10g-ethernet.

Re: Does patch-panels affect network speed?
brunogirard1970@gmail.com writes:
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Nobody grounds the shield correct.
The specs were all written for UTP.
The balanced driven pairs of Ethernet are very good at avoiding noise.
The shield (even properly done) often attracts more noise into the circuit
than UTP does by itself.

STP is for applications that aren't balanced drivers. (ie. RS232 serial data).

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At the prices you previously quoted? Those are some amazingly cheap
Cat6 patch panels..

Re: Does patch-panels affect network speed?
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If it is only a question of grounding, I am not nervous.  The place I
work at hire a couple of electrical engineers ... I should be OK to
find a grounder among them.

Beside, what you say surprises me.  I see many articles about the pros
of using STP for lan purposes.

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A cat6 96 ports patch panels is around 125$.

Re: Does patch-panels affect network speed?
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Which way do you consider correct?  Tie both end and live with
the ground loops?  Tie one end (which?  head? or stn?) and
ground the other through a resistor/cap (which)?

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Originally, yes.


Maybe.  I've seen radiation from 100 onto NTSC ch 2.  If STP is so
worthless, why is so much of it installed an Europe?  Wouldn't the
EMI test be easy to pass?  And if STP is so worthless, why is it
even available in N.Am where EMI tests are rare?

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Certainly more necessary there.  Not worthless for ethernet.


-- Robert


Re: Does patch-panels affect network speed?
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Or several links.

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If it dosn't it would either be a very expensive switch or a very cheap
contractor. Nearly 600 cables is rather a lot.

--
Mark Evans
St. Peter's CofE Aided School
Phone: +44 1392 204764 X241
Fax: +44 1392 204763

Re: Does patch-panels affect network speed?
brunogirard1970@gmail.com wrote:

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So long as the total length of the cable is less than the 100m limit
there shouldn't be an issue.

--
Mark Evans
St. Peter's CofE Aided School
Phone: +44 1392 204764 X241
Fax: +44 1392 204763

Re: Does patch-panels affect network speed?
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And even that limit is a bit soft. For fun, I had a Gig link brought
up over some cable looping end to end, panel to panel on my
datacenter. I think I got about 650-700 feet (ie. about double the
100m limit) and the gig link still came up and acted at Gig speeds
over Cat5e cabling with zero errors recorded on the switch layer1..

But still, best to plan on the 100m limit as absolute to not have
problems in the future.




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