powerline communications

I am seeking help in understanding what powerline communications or
Homeplug devices might be available to help me with a small project. I
need run between 25 to 35 monitors from a server(s) that will be
located between 50 to 400 ft from the server(s). I want to use the
existing electrical infrastructure. Can someone provide me some
information or feedback on this?

Thanks

 

What sort of monitors?






--

 

hello,

powerline communcations is atypically slow for most seriuos
applications. 50 to 400 feet can be done many otehr ways!

if this is a commercial venture ,please contact me at .

Marc

 

This is a proof of concept and we will use LCD monitors.

 

http://www.intellon.com/


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida

 

Comunication over power lines is a _bad_ thing.
Not only because I am a radio amateur and cannot stand the interference
on receivers.
Power lines are not twisted, so if you have say 100 meter pieces,
with pieces of various length going every way, you are simply broadcasting
over a very wide band.

What is the use of testing every piece of electronics for RFI and then
putting up a antenne like that?
;-)

 

you want to send high definition video over powerlines?

LOL!

Bye.
Jasen

 

What do you want to display on the monitors, and how often does it need
to be updated? Do you want the same data going to all monitors, or
does each monitor get adifferent image? How accurate does the image
have to be? I.e. can there be missing pixels or mispellings?

In general powerlines are only good for very slow and unreliable
communications, like 9600 baud or so. That leaves out video, unless
you digitize, compress ther video to mpeg, and put up with a very slow
update rate.

There have been attempts to send higher rates ofver power lines, but
there are many problems, not the least of which are interference with
SW radio communications. Also in a industrial environment there often
is much noise on the power lines, making communications impractical.

I suggest you run twisted-pair ethernet.

 

Here is an article on this subject at url,
http://www.emittsol.com/section/news/nw1000029.html

NSR