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Posted by anoop on March 10, 2008, 12:52 am
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There is a LAN in small building (almost like a home network)
with a few computers, a server, a printer, and a few access
points, and Internet connectivity. The users now want to extend
this to a building that is approximately 50 m away.
There will probably be only one computer in the new building and
the main need is to be able to get to resources in the existing
network (printer, server, etc.) and the out to the Internet via
the old building.
What is the most cost effective way to do this? Any ideas
on how to do this, including pointers to specific products, would
be helpful. Also, suggestions for looking elsewhere for information
(forums, websites) would also be appreciated.
Thanks,
Anoop
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Posted by Robert Redelmeier on March 10, 2008, 9:24 am
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> There is a LAN in small building (almost like a home network)
> with a few computers, a server, a printer, and a few access
> points, and Internet connectivity. The users now want to
> extend this to a building that is approximately 50 m away.
> There will probably be only one computer in the new building
> and the main need is to be able to get to resources in the
> existing network (printer, server, etc.) and the out to
> the Internet via the old building.
The general answer is fiber. It is by far safest
against lightening and ground loops.
Running copper may be possible and reasonably safe
depending on how the buildings get electrical service
(same groundstake?)
-- Robert
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Posted by Walter Roberson on March 10, 2008, 10:29 am
If you were Registered and logged in, you could reply and use other advanced thread options >> There is a LAN in small building (almost like a home network)
>> with a few computers, a server, a printer, and a few access
>> points, and Internet connectivity. The users now want to
>> extend this to a building that is approximately 50 m away.
>The general answer is fiber. It is by far safest
>against lightening and ground loops.
I agree that fibre is noticably safer if you are going to "hard wire"
connections. But whether it is the most "cost effective" method
depends a lot on your costing model, and what probability and
value that model assigns to risks of physical equipment or risks
of security breaches. I'm sure you are familiar with the saying,
"There is always money to repair, but there is never money to
do it right in the first place".
For a 50 meter connection, with "cost effectiveness" being given
as an important consideration, then the OP may wish to consider
a wireless link. If there are windows on the facing sides of the
building, possibly just putting the wireless units in the windows
and pointing them vaguely towards each other might give a good
-enough- connectivity, without going to the trouble of directional
antennae or outside mounts. Depends -- does the weather tend
more towards sunny and clear, or more towards thick fog or blinding
snowstorms?
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Posted by jpd on March 10, 2008, 12:11 pm
If you were Registered and logged in, you could reply and use other advanced thread options >>> There is a LAN in small building (almost like a home network)
>>> with a few computers, a server, a printer, and a few access
>>> points, and Internet connectivity. The users now want to
>>> extend this to a building that is approximately 50 m away.
>
>>The general answer is fiber. It is by far safest
>>against lightening and ground loops.
>
> I agree that fibre is noticably safer if you are going to "hard wire"
> connections.
[snip!]
No argument there. With a bit of creative dickering it doesn't have to
be that expensive either. And once installed, 100Mbit or 1Gbit is easily
attainable.
> For a 50 meter connection, with "cost effectiveness" being given
> as an important consideration, then the OP may wish to consider
> a wireless link. If there are windows on the facing sides of the
> building, possibly just putting the wireless units in the windows
> and pointing them vaguely towards each other might give a good
> -enough- connectivity, without going to the trouble of directional
> antennae or outside mounts. Depends -- does the weather tend
> more towards sunny and clear, or more towards thick fog or blinding
> snowstorms?
I agree: Since there are already wireless APs installed, one more that
can repeat or bridge to copper may be sufficient. A directional indoor
antenna stuck in the window might not be that much trouble, though.
Fifty metres with a crowded spectrum may make for poor performance
without. And there's the low-budget tinkering with pringles cans and
somewhat more recently, woks.
If money is tight and a local electronics enthousiast available, and
if the likely weather allows for it, let me chip in with the following
links:
http://ronja.twibright.com/
http://en.wikipedia.org/wiki/RONJA
--
j p d (at) d s b (dot) t u d e l f t (dot) n l .
This message was originally posted on Usenet in plain text.
Any other representation, additions, or changes do not have my
consent and may be a violation of international copyright law.
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Posted by anoop on March 10, 2008, 6:04 pm
If you were Registered and logged in, you could reply and use other advanced thread options
> For a 50 meter connection, with "cost effectiveness" being given
> as an important consideration, then the OP may wish to consider
> a wireless link. If there are windows on the facing sides of the
> building, possibly just putting the wireless units in the windows
> and pointing them vaguely towards each other might give a good
> -enough- connectivity, without going to the trouble of directional
> antennae or outside mounts. Depends -- does the weather tend
> more towards sunny and clear, or more towards thick fog or blinding
> snowstorms?
It's in California, so summers are sunny and clear, winters
tend to bring rain and fog.
Can you point me to specific wireless products for doing
this?
The buildings are of very basic construction (like homes)
so there should be very little interference from the buildings
themselves.
Anoop
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