Quote:
Originally Posted by Pazuzu
A spec was older.
B spec has a better choice of wires side by side in the connector to deal with electrical fields. High speed data now creates some wild electromagnetic fields when two wires are next to each other transmitting data, the A-spec couldn't handle that very well.
For low-speed networks, or power only type things, it doesn't matter what order you choose as long as both sides are the same, but if *you* ever work on a cable, then in a year someone *else* does, they're going to assume that you used the B spec.
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This. And if you want to use some standard commercial Cat6 cables of today, everything works well together. The biggest thing is no cable is forever. It will be worked on again, and if it is built with a standard, much easier for the next guy. And the next guy may well be yourself trying to figure out why one cable is slow or not functional.