21
APPEnDIx A networking Connection
A.1 PoE Switch RJ-45 Port Pin Assignments
1 2 3 4 5 6 7 8
PIN NO
RJ-45 SIGNAL ASSIGNMENT
1
Negative Power +
l
2
Negative Power +
l
3
Positive Power –
l
6
Positive Power –
l
A.2 Switch's Data RJ-45 Pin Assignments-1000Mbps, 1000Base-T
PIN NO
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.
