Appendix A Switch's RJ-45 Pin Assignments
A.1 1000Mbps, 1000Base T
Contact MDI MDI-X
1 BI_DA+ BI_DB+
2 BI_DA- BI_DB-
3 BI_DB+ BI_DA+
4 BI_DC+ BI_DD+
5 BI_DC- BI_DD-
6 BI_DB- BI_DA-
7 BI_DD+ BI_DC+
8 BI_DD- BI_DC-
Implicit implementation of the crossover function within a twisted-pair
cable, or at a wiring panel, while not expressly forbidden, is beyond
the scope of this standard.
A.2 10/100Mbps, 10/100Base-TX
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::
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