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C
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Cable Specifications
1000BASE-T Pin Assignments
Caution: DO NOT plug a phone jack connector into any RJ-45 port.
Use only twisted-pair cables with RJ-45 connectors that
conform with FCC standards.
The table below shows the 1000BASE-T MDI and MDI-X port pinouts.
These ports require that all four pairs of wires be connected. Note that for
1000BASE-T operation, all four pairs of wires are used for both transmit
and receive.
Use 100-ohm Category 5 or 5e unshielded twisted-pair (UTP) or shielded
twisted-pair (STP) cable for 1000BASE-T connections. Also be sure that
the length of any twisted-pair connection does not exceed 100 meters
(328 feet).
Cable Types and Specifications
Cable Type Max. Length Connector
10BASE-T 2-pair Cat. 3 or better 100-ohm UTP 100 m (328 ft) RJ-45
100BASE-TX 2-pair Cat. 5 or better 100-ohm UTP 100 m (328 ft) RJ-45
1000BASE-T 4-pair Cat. 5 or better 100-ohm UTP 100 m (328 ft) RJ-45
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