ethernet over mains

I'm in the UK and I have a question about ethernet over mains devices.
Are they all universal? or will they only work with a matched device?
(ie: same speed, same manufacturer/model). I use a couple of these
devices at the moment to give me a network connection in my garage,
but I bought them as a matched pair. I would like another network port
there (using the mains) but it must isolated and not mixed up with the
original one. Thanks for any advice.

tg Inscribed thus:

But a deeper issue is that unless you have multiple ISP's, meaning
multiple routers they are all going to be on the same subnet. Its
unlikely that your router will support more than a single subnet.

"Baron" <baron.nospam_at_linuxmaniac.nospam.net> wrote in message
news:hh8f35$qkt$1_at_news.eternal-september.org...
tg Inscribed thus:

But a deeper issue is that unless you have multiple ISP's, meaning
multiple routers they are all going to be on the same subnet. Its
unlikely that your router will support more than a single subnet.

thanks for your response.
actually my router will support more than one subnet (cisco 2600) so
am I to understand that if I put the other e-o-m adapters on a
different subnet then they will be isolated from the first?

Basically yes. This website might help
http://www.howstuffworks.com/ethernet.htm

"Baron" <baron.nospam_at_linuxmaniac.nospam.net> wrote in message
news:hha2ie$jbc$1_at_news.eternal-september.org...

Basically yes. This website might help
http://www.howstuffworks.com/ethernet.htm

yes it worked. I got a couple of 200mb e-o-m adaptors and connected
them on a different subnet and all is fine now. The two signals don't
seem to mix at all. This has saved me a lot of money because I
originally thought I would have to get a high-end wireless bridge to
achieve the isolation.
yay!