>Is there another method I should be aware of?
Those of us who have used cable scanners to maintain Thinnet LANs are aware
that the location of breaks in segments can be determined through the use of
TDR (i.e. time domain reflectometry). There are also OTDR (optical) devices
available. Seems like the same technique could be used to detect the
location of sharp bends or nicks. I suppose, if the intruders were very
sophisticated (and we are talking sophisticated here), they could "break and
make" a connection so that the transmission characteristics of your line
changed for only a very brief length of time. Still, it seems that some
reflection at the tap site would be hard to avoid. Perhaps you could scan
the cable from time to time. This would involve taking down a high
bandwidth line. I'm not aware of any products that can scan the line
without interrupting normal communications. I'd like to see the brochures,
if anybody knows of some.
>Any plumber who has had to
>tap a pressurized water main can show you how to get around that little
>impediment.
Please provide details on this. (I don't trust my plumber :)
Jeff
|
|
