APPENDIX A NETWORKING CONNECTION
A.1 Switch‘s RJ-45 Pin Assignments
10/100Base-TX
Contact
MDI
MDI-X
1
1 (TX +)
3
2
2 (TX -)
6
3
3 (RX +)
1
6
6 (RX -)
2
4, 5, 7, 8
Not used
Not used
A.2 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.3 RJ-45 cable pin assignment
2 1
3
6
1
2
3
6
2 1
3
6
There are 8 wires on a standard UTP/STP cable and each wire is color-coded. The following shows the pin allocation
and color of straight cable and crossover cable connection:
EM-GSW2416SFv1
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