8
Cables and Connectors
Cable characteristics: Category 3 or better
unshielded twisted-pair or EIA/TIA-568 compliant,
100-ohm shielded twisted-pair data cable with 0.4 to
0.6 mm (22 to 26 AWG) wires in two or four twisted
pairs (only two pairs--that is, four wires--are used
for 10BASE-T ).
Maximum segment length: 100 meters
Connectors: RJ-45
Straight Twisted-Pair Cable Pinouts
Contact
MDI-X Signal
MDI-II Signal
1
RD+ (receive)
TD+ (transmit)
2
RD- (receive)
TD- (transmit)
3
TD+ (transmit)
RD+ (receive)
4
Not used
Not used
5
Not used
Not used
6
TD- (transmit)
RD- (receive)
7
Not used
Not used
8
Not used
Not used
