Specifications

42 | Appendix D: Cabling Guidelines
Smart Switch Software Manual
RJ-45 Plug and RJ-45 Connectors
In a Fast Ethernet network, it is important that all 100BASE-T certified Category 5 cabling use
RJ-45 plugs. The RJ-45 plug accepts 4-pair UTP or shielded twisted-pair (STP) 100-ohm
cable and connects into the RJ-45 connector. The RJ-45 connector is used to connect
stations, hubs, and switches through UTP cable; it supports 10 Mbps, 100 Mbps, or 1000
Mbps data transmission.
Figure D-4 shows the RJ-45 plug and RJ-45 connector.
Figure D-4: RJ-45 Plug and RJ-45 Connector with Built-in LEDs
Table D-2 lists the pin assignments for the 10/100 Mbps RJ-45 plug and the RJ-45 connector.
Table D-2:10/100 Mbps RJ-45 Plug and RJ-45 Connector Pin Assignments
Table D-3 lists the pin assignments for the 100/1000 Mbps RJ-45 plug and the RJ-45
connector.
PIN NORMAL ASSIGNMENT ON
PORTS 1 TO 8
UPLINK ASSIGNMENT ON
PORT 8
1 Input Receive Data + Output Transmit Data +
2 Input Receive Data – Output Transmit Data –
3 Output Transmit Data + Input Receive Data +
6 Output Transmit Data – Input Receive Data –
4, 5, 7, 8 Internal termination, not used for data transmission