LAN and Telecom Cabling seeking vga cable extension advice

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Subject Author Date
seeking vga cable extension advice greg t. knopf 02-03-06
Posted by greg t. knopf on February 3, 2006, 9:36 am
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Hello,

I have a customer with the following desire. In a room 15' across,
they are going to place a large flat screen TV on one wall. Opposite
that will be a couch along with a desktop PC. They will also use their
laptops from this couch.

The customer likes to use either the PC or their laptops to hook up a
VGA cable to the TV screen and use that as a monitor.

I would like to provide them with a wall jack with a female VGA
interface on both sides of the room. The jacks will be connected via a
crawlspace.

Does anyone know of a jack connector which I can mount in a wall box for
a VGA female interface? And how is the cable connected to the jack, by
soldering it?

I know that it would be possible to run a pre-made cable into the wall
and through the crawlspace but even that has it's challeges. For one, I
do not like having a loose cable sticking out of the wall. Also, the
house rests on what looks like had-hewn 10"x 10" beams intead of the
uusual 10" x 12" x 2" board. As it is I will probably have to knock out
some of the cinder block which makes up the foundation.

Anyway, I would appreciate any advice.

Thank you,

- Greg Knopf
info@knopfnet.com


Posted by Al Dykes on February 3, 2006, 9:55 am
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>Hello,
>
>I have a customer with the following desire. In a room 15' across,
>they are going to place a large flat screen TV on one wall. Opposite
>that will be a couch along with a desktop PC. They will also use their
>laptops from this couch.
>
>The customer likes to use either the PC or their laptops to hook up a
>VGA cable to the TV screen and use that as a monitor.
>
>I would like to provide them with a wall jack with a female VGA
>interface on both sides of the room. The jacks will be connected via a
>crawlspace.
>
>Does anyone know of a jack connector which I can mount in a wall box for
>a VGA female interface? And how is the cable connected to the jack, by
>soldering it?
>
>I know that it would be possible to run a pre-made cable into the wall
>and through the crawlspace but even that has it's challeges. For one, I
>do not like having a loose cable sticking out of the wall. Also, the
>house rests on what looks like had-hewn 10"x 10" beams intead of the
>uusual 10" x 12" x 2" board. As it is I will probably have to knock out
>some of the cinder block which makes up the foundation.
>
>Anyway, I would appreciate any advice.
>
>Thank you,
>
>- Greg Knopf
> info@knopfnet.com
>

Without digging into it, myself, these folks probably have what you
need, and maybe ideas. Get the paper catalog. It's more interesting
than the web site.

http://www.smarthome.com/

These people have lots of parts you might find interesting.

http://www.milestek.com/

There's always Black Box. Expensive but quality stuff and (the last
time I called) very good technical advice from their "application
engineers".

http://www.blackbox.com/


As a general comment. Quality counts in long VGA wiring. When i did
it for high-res (1200x???) ceiling-mounted video projectors it was
obvious that the cheapo cables caused ghosting. A crappy drop cable
from the VGA wall plate to the user's laptop would cause noticeable
ghosting. The in-wall cable we used was specified by the A/V outfit
that sold us all our gear. I don't recall what it was.

Depending on the length of the run and the capacitance rating of the
cable you might have high frequency roll-off and video degradation.





--
a d y k e s @ p a n i x . c o m

Don't blame me. I voted for Gore.

Posted by Robert Redelmeier on February 3, 2006, 10:42 am
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> I know that it would be possible to run a pre-made cable

I'd go pre-made. Easier than figuring out what to do.
Strip the screws and tape up well after attaching the fish
string to the _cable_.

> into the wall and through the crawlspace but even that
> has it's challeges. For one, I do not like having a
> loose cable sticking out of the wall.

Nor do I. Sandwich the end into a metal wallplate.
Then provide patch-cords to take the wear. You might
want to look at a powered video switchbox (or even one of
the cute Iomega KVMs) to do amplification, but it probably
isn't necessary for that short a run.

People do this all the time for conference-room projectors.

-- Robert


Posted by James Russo on February 3, 2006, 3:11 pm
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> I would like to provide them with a wall jack with a female VGA
> interface on both sides of the room. The jacks will be connected via a
> crawlspace.

I'd think you should be able to use a d-sub wall plate.. I think a
monitor cable would fit in a DB9.

google 'dsub wall plate' and see if some of those results help you out.


-jr

Posted by none on February 3, 2006, 8:40 pm
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>
> > I would like to provide them with a wall jack with a female VGA
> > interface on both sides of the room. The jacks will be connected via a
> > crawlspace.
>
> I'd think you should be able to use a d-sub wall plate.. I think a
> monitor cable would fit in a DB9.
>
> google 'dsub wall plate' and see if some of those results help you out.

Or you could just buy a wall plate and jack made for VGA connections (HD15),
plenty of places sell them.




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