Appendix a, A.1 switch‘s rj-45 pin assignments – PLANET FNSW-2402S User Manual
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Appendix A
A.1 Switch‘s RJ-45 Pin Assignments
When connecting your 10/100Mbps Ethernet Switch to another switch, a bridge or a hub,
a straight or crossover cable is necessary. Each port of the Switch supports auto-MDI/
MDI-X detection. That means you can directly connect the Switch to any Ethernet devices
without making a crossover cable. The following table and diagram show the standard
RJ-45 receptacle/ connector and their pin assignments:
RJ-45 Connector pin assignment
Contact
MDI
Media
Dependant
Interface
MDI-X
Media
Dependant
Interface -Cross
1
TX + (transmit)
Rx + (receive)
2
TX - (transmit)
Rx - (receive)
3
Rx + (receive)
TX + (transmit)
4,5*
Not used
6
Rx - (receive)
TX - (transmit)
7,8*
Not used
The standard cable, RJ-45 pin assignment
The standard RJ-45 receptacle/connector