Cable Types And Specifications - SMC Networks Copper Gigabit PCI Card SMC9452TX-1 User Manual

Cable Specifications
Cable
10BASE-T
100BASE-TX
1000BASE-T
Twisted-Pair Cable and 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 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 Pin Assignments
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
1
2
3
4
5
6
7
8

Cable Types and Specifications

Type
Cat. 3, 4, 5 100-ohm
Cat. 5 100-ohm
Cat. 5, 5e 100-ohm
MDI Signal Name
Transmit Data plus (TD1+)
Receive Data minus (RD1-)
Transmit Data plus (TD2+)
Transmit Data plus (TD3+)
Receive Data minus (RD3-)
Receive Data minus (RD2-)
Transmit Data plus (TD4+)
Receive Data minus (RD4-)
Max. Length
UTP100 m (328 ft)
UTP100 m (328 ft)
UTP100 m (328 ft)
MDI-X Signal Name
Transmit Data plus (TD2 +)
Receive Data minus (RD2-)
Transmit Data plus (TD1+)
Transmit Data plus (TD4+)
Receive Data minus (RD4-)
Receive Data minus (RD1-)
Transmit Data plus (TD3+)
Receive Data minus (RD3-)
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Connector
RJ-45
RJ-45
RJ-45