I say that it is a stray issue that is of no significance. Keep in mind that 50 feet of CAT6 cable is the equivalent of about 100 feet of CAT3. Mixing categories isn't advised, but depending upon what you're doing, it shouldn't really matter. If you can't pick a voltage reading with a real volt meter, then don't worry about it.

By the way, just because a cable has more than four pairs, that doesn't make it old! We install brand-new 50 pair tie cables all the time.


Ed Vaughn, MBSWWYPBX