homePNA - is that a dsl-technology?

It is a system for networking over your home telephone lines, while leaving the phones working. Try Google for more details.

Thank you. I now have some further information: "I wouldn't call it an xDSL, although the underlying technology is of course similar (there aren't so many different ways to transmit bits over copper wire...). HomePNA is intended for in-house use, and hence it's optimized for very short and very high-speed transmission. I believe it uses the in-house telephone wiring as a shared medium (like 10BASE-2 and 10BASE-5 did with coax), allowing more than 2 stations on the same physical network. That is never the case with DSL."