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Cable Specifications Cable Types and Specifications
Cable Type Max. Length Connector
10BASE-T Cat. 3, 4, 5 100-ohm UTP100 m (328 ft) RJ-45
100BASE-TX Cat. 5 100-ohm UTP100 m (328 ft) RJ-45
1000BASE-T Cat. 5, 5e 100-ohm UTP100 m (328 ft) RJ-45
Caution: DO NOT plug a phone jack connector into any RJ-45 port. Use only twisted-pair cables with RJ-45
connectors that conform to FCC standards.
The RJ-45 port on the EZ Card 1000 supports 10, 100, and 1000 Mbps Ethernet operations, with auto-
negotiation of speed and flow control.
1000BASE-T ports support automatic MDI/MDI-X operation, so you can use straight-through cables for all
network connections. In straight-through cable, pins 1-8, at one end of the cable, are connected straight through
to pins 1-8 at the other end of the cable.
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).
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.
Pin MDI Signal Name MDI-X Signal Name
1 Transmit Data plus (TD1+) Transmit Data plus (TD2 +)
2 Receive Data minus (RD1-) Receive Data minus (RD2-)
3 Transmit Data plus (TD2+) Transmit Data plus (TD1+)
4 Transmit Data plus (TD3+) Transmit Data plus (TD4+)
5 Receive Data minus (RD3-) Receive Data minus (RD4-)
6 Receive Data minus (RD2-) Receive Data minus (RD1-)
7 Transmit Data plus (TD4+) Transmit Data plus (TD3+)
8 Receive Data minus (RD4-) Receive Data minus (RD3-)