I am building a town house and want it to be prewired for either DSL or Cable connection. The electrican told me they use Cat-5 wiring for that. I read Cat-5 wiring is for networks but have not read it is for direct connections.
Acternaweb, if the townhouse is on a crawlspace, pick one or two likely spots on the first floor and tell the electrician you want a blank box (CY-1/2 Steel City or equal) stubbed out with 1/2-inch EMT into the crawl space. Same on the upper floors, except stubbed into the attic. Then have a 3/4-inch EMT conduit (or two, you may need a power leg later and you can't mix com, low voltage, or AC in the same conduit) run from the crawlspace to the attic and capped off. It's cheap to do now, but you'll pay dearly later to fish a line after the walls are closed.
Yeah. If you are building a new house, run conduit throughout the whole thing. Then string cat5 through the conduit. Who knows what technology will be available in 10 years that need whole new wiring? If you have the conduit, you can string whatever you need.