LAN and Telecom Cabling Extending cat5e - Help!

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Subject Author Date
Extending cat5e - Help! Queue 08-06-05
Posted by Queue on August 6, 2005, 4:20 pm
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Any suggestions for resolving this problem as painlessly and
cooperatively as possible will be appreciated...


I just had an electrician run a indoor/outdoor cat5e from my office (in
an adjacent building) to the basement of my home.

I asked him to run the cable to a particular area in the basement and
then leave me 20ft of cable so I feed the line upstairs to a small
patch panel and router in a closet.

Attempting to be helpful, he brought the line into the house and cut it
off at the fusebox -- far short of where I needed the line. Apparently
he thought that I should have the patch-panel and router there.

(Of course, the panel and router won't fit in the cabinet that
surrounds the fusebox, and there are no nearby outlets to power the
router....)

Do I need a special splice or other device to extend the cat5e? (I hate
to make him rerun the whole line -- burying it tore up my yard and made
a real mess of things.)

Also, I think this guy is a competent electrician, but I question his
networking skills. In my office space, he hooked up two RJ-45 jacks in
parallel. (I'm not an expert... and I correct in thinking that each
line has to independent and connected by a hub/switch device?)

Can anyone suggest a resource for this guy...? Maybe a cheat-sheet for
him to get up to speed on ethernet cabling so he can fix the jack
problem?

Thanks! -Queue


P.S. Critical comments about the electrician are not helpful - I live
in a smaller close-knit community where cooperation in working out
problems is valued over angry words and threats.



Posted by Perkowski on August 7, 2005, 2:31 am
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Queue wrote:
> Any suggestions for resolving this problem as painlessly and
> cooperatively as possible will be appreciated...
>
>
> I just had an electrician run a indoor/outdoor cat5e from my office (in
> an adjacent building) to the basement of my home.
>
> I asked him to run the cable to a particular area in the basement and
> then leave me 20ft of cable so I feed the line upstairs to a small
> patch panel and router in a closet.
>
> Attempting to be helpful, he brought the line into the house and cut it
> off at the fusebox -- far short of where I needed the line. Apparently
> he thought that I should have the patch-panel and router there.
>
> (Of course, the panel and router won't fit in the cabinet that
> surrounds the fusebox, and there are no nearby outlets to power the
> router....)
>
> Do I need a special splice or other device to extend the cat5e? (I hate
> to make him rerun the whole line -- burying it tore up my yard and made
> a real mess of things.)
>
> Also, I think this guy is a competent electrician, but I question his
> networking skills. In my office space, he hooked up two RJ-45 jacks in
> parallel. (I'm not an expert... and I correct in thinking that each
> line has to independent and connected by a hub/switch device?)
>
> Can anyone suggest a resource for this guy...? Maybe a cheat-sheet for
> him to get up to speed on ethernet cabling so he can fix the jack
> problem?
>
> Thanks! -Queue
>
>
> P.S. Critical comments about the electrician are not helpful - I live
> in a smaller close-knit community where cooperation in working out
> problems is valued over angry words and threats.
>
Well, tell him to terminate that line to a bisquit jack down there.
Than go buy yourself a patch cord that will reach whereever you are.
thats the easiest way, not the right way though. the right way is to
repull the whole run again!


Posted by Robert Redelmeier on August 7, 2005, 7:08 pm
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> I just had an electrician run a indoor/outdoor cat5e from my
> office (in an adjacent building) to the basement of my home.

This is _very_ bad practice. Any nearby lightening strike will
impose ground differentials that will fry equipment at both ends.

> I asked him to run the cable to a particular area in the
> basement and then leave me 20ft of cable so I feed the line
> upstairs to a small patch panel and router in a closet.

> Attempting to be helpful, he brought the line into the
> house and cut it off at the fusebox -- far short of where

You can install a small surface mount jack, and plug
in a 20 ft patchcord.

> I question his networking skills. In my office space,
> he hooked up two RJ-45 jacks in parallel. (I'm not an
> expert... and I correct in thinking that each line has to
> independent and connected by a hub/switch device?)

No, you cannot daisy-chain RJ-45s! Not with ethernet
anyways. You can, however, share a sheath and use two
pair to each RJ45. There are different ways to do this,
some less ugly than others.

-- Robert



Posted by Queue on August 7, 2005, 1:00 pm
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Robert Redelmeier wrote:
> > I just had an electrician run a indoor/outdoor cat5e from my
> > office (in an adjacent building) to the basement of my home.
>
> This is _very_ bad practice. Any nearby lightening strike will
> impose ground differentials that will fry equipment at both ends.

Can you tell me more about this? The cable is heavy indoor/outdoor,
protected in side a conduit and buried about a foot underground.

How could this be done differently?

Thanks! -Cloy



Posted by Perkowski on August 7, 2005, 8:58 pm
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Queue wrote:
> Robert Redelmeier wrote:
>
>>
>>>I just had an electrician run a indoor/outdoor cat5e from my
>>>office (in an adjacent building) to the basement of my home.
>>
>>This is _very_ bad practice. Any nearby lightening strike will
>>impose ground differentials that will fry equipment at both ends.
>
>
> Can you tell me more about this? The cable is heavy indoor/outdoor,
> protected in side a conduit and buried about a foot underground.
>
> How could this be done differently?
>
> Thanks! -Cloy
>
Basically, the cable should be buried deeper per NEC code and should be
electrically bonded/grounded. If a lighting bolt strike say a tree near
the wire it could get onto the wire and fry out your equipment.


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