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ADSL Equipment Setup, Westell Wirespeed
The part of ADSL equipment setup which gives the most trouble is where to
put the filters. Every phone device in the home (phone, answering machine, fax,
dial-up modem, satellite system, etc.) which connects to the ADSL telephone line needs a
filter EXCEPT the ADSL modem. The filters block the ADSL signal
which is riding over the top of your regular telephone signal. Filters
keep the ADSL signal from interfering with the phones (causing static) and
keep the phones from interfering with the ADSL signal (causing poor or no
Internet). Make sure every phone device has a filter, no matter where
in the home it is, and make sure the ADSL modem does not have a filter on
its phone cable. At left is a Westell Wirespeed ADSL modem. It's not really a conventional modem; it's a device for converting the ADSL signal that's on the phone line into ethernet, which your computer can understand. In the photo, the round plug is for the ADSL modem's external power supply. The right-hand port is for an ethernet cable, and the left-hand port is for a phone cable. (You don't really put two phone cables into the port. Either put the cable straight to a wall jack or to the un-filtered side of a splitter.) The phone cable should be a low-loss, twisted-pair phone cable unless it is very, very short - less than six feet long. That's because ADSL is a high-frequency signal and is attenuated very quickly over regular, straight phone cables. Twisted-pair cables allow the signal to travel longer distances with less loss. If you have a single computer, the ethernet cable plugs directly into your computer's ethernet port. Multiple Computers If you have several computers, all of them can be on ADSL at the same time through a hub or router. The ethernet cable from the ADSL modem plugs into the uplink port of a hub or the WAN port of a router. You'll also need an ethernet cable to go from the hub or router to each computer. We sell hubs, routers, cables, etc. Cactus Computer, 211 S. Main St. in Moscow. If you have a hub, you'll need one IP address for each computer. This is the preferred method. If you have a router, you'll need only one IP address, and the router will assign internal, "fake" IP addresses to each computer. This can cause a few problems, but is usually satisfactory. If you are a Cactus TurboNet customer, and you don't already own a router, buy a hub instead. It is less expensive and more satisfactory. Troubleshooting There are four lights on the Westell Wirespeed. If your line has been activated and the Ready light on the modem is not on and solid, you either have a hardware problem, or a problem with the ADSL signal from Verizon.
If the ADSL modem looks normal - power, ready and link lights on - but your computers can't connect to the Internet:
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Cactus Computer Co. 211 S. Main St. Moscow, ID 83843 |
Copyright © 2004 Cactus International, Inc. |