To be complete, not that anyone really cares, if you hold the connectors so that the metal end is pointing up and towards you, the wires are numbered 1-8 from the left to the right. Wire 1 will be swapped with wire 3 and wire 2 will be swapped with wire 6. The other four wires are unused in most forms of ethernet, including 10baseT, which is what the empeg uses.

Also, Cat5 refers to the bandwidth that the cable can effectively transmit. IIRC, this largely has to do with how tightly twisted the pairs are. Cat5 is the standard for 100baseTX, and is more than capable of transmitting 10baseT.