Regular Phone Line Vs. Modem Line

Ed January 30, 2009 at 18:12:18
Specs: Windows Vista
I just bought a new UPS in which to connect my DSL Line. I need a short line to connect my UPS to my Modem. Do I really just need a short phone line with RJ11 connecters or is there something better out there? Will a short regular phone line affect my DSL Speed?

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January 30, 2009 at 18:32:28
A regular phone cable is just fine. DSL does not need a special cable.

FWIW to XP users: When you click on the 'Command Prompt' you are just causing the 'Command prompt' to be displayed. This prompt gives you access to NTVDM.EXE, the 'NT Virtual DOS Manager'.

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January 31, 2009 at 01:05:31
Am not sure how a UPS relates to the phone line.

However here in the UK *sometimes* a modem cable is wired differently (at the modem end) to a phone line, although both look the same.

Thus if the wrong one is used, the modem does not work.

Good Luck - Keep us posted.

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January 31, 2009 at 05:06:30
I take it the the OP is using the phone line surge protector that is incorporated into a lot of UPS designed for home use.

If you use a cable that an RG11 plug at one and and a BT style plug on the other or a BT to RG11 adaptor then there should be no problem. Connect that from the wall socket to the UPS and a standard phone cable with RG11 at either end from UPS to modem. The only time it will effect your DSL speed is if you have a crappy cable with lose connections in the plug.

The BT phone socket has three wires coming out. The third wire is the ring signal that is extracted within the socket and not within the telephone as the rest of the world does. This third wire is not needed for DSL and is probably blocked by the DSL filter. It is needed if you connect to a dial-up modem and want to use auto answer.

Consequently dial-up modems made for the UK market are wired slightly different than the rest of the world and you should always use the cable or BT-RG11 adaptor that came with the modem.


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