SmartFlex SR305
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
Signal mark
Description
Data flow direction
1
TXD+
Transmit Data – positive pole
Input/Output
2
TXD-
Transmit Data – negative pole
Input/Output
3
RXD+
Receive Data – positive pole
Input/Output
4
DC+
PoE power + (if it’s equipped by PoE)
5
DC+
PoE power + (if it’s equipped by PoE)
6
RXD-
Receive Data – negative pole
Input/Output
7
DC-
PoE power - (if it’s equipped by PoE)
8
DC-
PoE power - (if it’s equipped by PoE)
Table 12: Connection of Ethernet connector
Figure 32: Ethernet connector
The crossover UTP cable (Ethernet cable) plugs into the RJ45 connector labeled as ETH0
or ETH1 (see the figure below).
Figure 33: 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 13: Insulation strength of Ethernet ports
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