A.1 Switch's RJ-45 Pin Assignments
10/100Base-TX
Contact
1
2
3
6
4, 5, 7, 8
A.2 1000Mbps, 1000Base-T
Contact
MDI
1
BI_DA+
2
BI_DA-
3
BI_DB+
4
BI_DC+
5
BI_DC-
6
BI_DB-
7
BI_DD+
8
BI_DD-
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
6
3
2 1
6
3
2 1
6
3
2
1
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
APPENDIX A NETWORKING CONNECTION
MDI
MDI-X
1 (TX +)
2 (TX -)
3 (RX +)
6 (RX -)
Not used
Not used
MDI-X
BI_DB+
BI_DB-
BI_DA+
BI_DD+
BI_DD-
BI_DA-
BI_DC+
BI_DC-
3
6
1
2
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