> > 1000BaseT does use all 4 pairs. > > > Yeah, that as well as that freaky PAM-5 signaling. Has anyone else > read the standard for PAM-5? It's a neat idea. > [JR>] pam is definitely a no brainer. Aerosol can, spray it in frying pan, done. No problem. Works for getting a bunch of cables through conduit as well.