Crissy asked:

> Tell me how you can use a UPS on an ADSL line that could have any
> affect on the ADSL line. The power supply to the equipment is not
> connected to the data that is handled by the equipment. The UPS
> is used for the power supply only - you would not want it to touch your
> data - and if you did what do you think it would actually do?

My Tripplite UPS has an extra data protection circuit in it that allows a
phone line to be protected from random surges and the like. So not only do I
get the UPS keeping the modem up and running on brown outs and short power
failures, I get some electrical protected from damage coming down Telecoms
circuits.

I guess there was some concern that an overly protective filter could
restrict the frequencies allows through, and thus cause ADSL to fail while
still allow a modem to work.

Cheers, Max.

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