SmartMotion ST355
5.9.6
Ethernet Ports (ETH0 and ETH1)
The panel socket RJ45 is used for this interface. The isolation barrier of the Ethernet signal
ports against the ground is 1500 V.
Pin
10base-T & 100base-T
PoE (Mode B)
1
Tx+ (Transmit Data+)
—
2
Tx- (Transmit Data-)
—
3
Rx+ (Receive Data+)
—
4
—
PoE + (positive pole)
5
—
PoE + (positive pole)
6
Rx- (Receive Data-)
—
7
—
PoE - (negative pole)
8
—
PoE - (negative pole)
Table 13: Ethernet connector pinout
Figure 18: Ethernet connector
The crossover UTP cable (Ethernet cable) plugs into the RJ45 connector labeled as ETH0
or ETH1 (see the figure below).
Figure 19: Connection of Ethernet cable
The insulation strength of Ethernet ports from each other and from the rest of the router
(grounding) is dependent on the router version:
Router Version
Insul. Strength from Router
Insul. Strength between Ports
Without PoE
1.5 kV
1.5 kV
PoE PD
1.5 kV
none
PoE PSE
none
none
Table 14: Insulation strength of Ethernet ports
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