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Appendix A RJ-45 Pin Specifications
The four external Ethernet ports of this switch module are auto-configuring and will work with
straight-through or crossover cables when connected to other Ethernet equipment. Review the
documentation that comes with the product you are connecting to for matching cable pin
assignments.
The following illustration and table show the standard RJ-45 receptacle/connector and their
corresponding pin assignments.
Table 7. Standard Ethernet cable, RJ-45 pin assignment
Contact (pin number) Label Media direct interface signal
1 TPO+ Tx + (transmit)
2 TPO- Tx - (transmit)
3 TP1+ Rx + (receive)
4 TP2+ Not used
5 TP2- Not used
6 TP1- Rx - (receive)
7 TP3+ Not used
8 TP3- Not used