6000ft ethernet extenders sound interesting. One solution we have been
trying out was HPNA adapters which have range up to 2000ft on a pair of
phone lines. I'd like to put internet access to the connection 1500ft away
as well, so this is something I will consider.

Having some solid telco equipment could also put my mind at ease for some of
these connections. Under $500 sounds great for that many extensions.
Hopefully I can learn how to config it properly though :-)

Funny that you mention the grounding and protection also! The system was
first put up in May for about 3 weeks, then a lightning storm came and short
circuited the digium FXO card in the * server. It made the PSTN lines
permanently busy and no outbound calls could be made as well. It wasn't very
nice! I would be interested to know how some good grounding could be put in
place. Right now I have just purchased some power bars with telephone
inputs, but they aren't as convenient as they only provide protection for
one line...


I have also attached a rough diagram of the setup for your reference (shows
the location of the HPNA adapters). FYI each location of the HPNA adapters
also has a phone extension. The building with the HPNA adapter and the blue
cat-5 cable coming into it is the spot where the HPNA adapters need to be
able to reach for the current setup to work properly (has the internet
access and link to to * server).

Thanks for the great info!

Steven

On 7/10/07, Andrew Kohlsmith <[EMAIL PROTECTED]> wrote:

On Saturday 07 July 2007 4:58 pm, Steven McCann wrote:
> Does anyone know the length you can run a FXS extension on copper cable
> pair (24 AWG)?

I would personally recommend proper telco-grade hardware for anything like
this.  For FXS, a TE110P and a Carrier Access Access Bank I would be
perfect,
and reasonably priced on ebay.  It's highly unlikely that you'll need any
kind of echo cancellation on a length that short, and the ABI can drive
long
lines.  You don't need to worry about disconnect supervision or anything
on
FXS ports, either, which is why you can get away with the older ABI and
ABII
instead of moving up to the Adit600.

Adtran and Rhino make FXS channel banks as well, and Xorcom makes a
USB "channel bank" as well, but I have not used any of these products.

If you're running between buildings you may also need to worry about
grounding
and protection.  I'd need to know more information to be able to tell you
anything concrete, but yeah, for under $500 you can have yourself 24 ports
of
telco-grade FXS to play with.

(channel banks and fax machines also get along great, if that is a
concern.)

-A.

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