Interlogix NS3552-8P-2S-V2 User Manual page 493

Appendix A
Networking connection
PoE RJ45 port pin assignments
RJ45 port pin assignments – 1000Mbps, 1000BASE-T
Pin number
1
2
3
4
5
6
7
8
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.
10/100Mbps, 10/100BASE-TX
When connecting the industrial managed switch to another Fast Ethernet switch, a
bridge, or a hub, a straight or crossover cable is necessary. Each port of the industrial
managed switch supports auto-MDI (Media Dependent Interface)/MDI-X (Media
Dependent Interface Cross) detection. This makes it possible to directly connect the
industrial managed switch to any Ethernet device without making a crossover cable.
The following table and diagram show the standard RJ45 receptacle/ connector and
their pin assignments.
NS3552-8P-2S-V2 User Manual
Pin Number RJ45 Power Assignment
1 Power +
2 Power +
3 Power -
6 Power -
MDI
BI_DA+
BI_DA-
BI_DB+
BI_DC+
BI_DC-
BI_DB-
BI_DD+
BI_DD-
MDI-X
BI_DB+
BI_DB-
BI_DA+
BI_DD+
BI_DD-
BI_DA-
BI_DC+
BI_DC-
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