Power Over Ethernet (Poe); Poe Pd Usage - Advantech SmartFlex SR310 User Manual

5.8.7 Power over Ethernet (PoE)

On the router models with PoE, the PoE+ standard IEEE 802.3at-2009 and PoE standard
IEEE 802.3af-2003 are supported in both Ethernet ports (ETH0, ETH1). The PoE PD version
allows the router to be powered over the Ethernet by another PoE PSE device. The PoE PSE
version also allows the router to power other devices over the Ethernet.
PoE PD
The PoE PD parameters can be found in Chapter 7.7. The POE LED on the front panel
of the router lights up green when voltage is present in an Ethernet port so the user knows
the router can be PoE powered. You can still power the router with this connector even if the
router is powered with PoE (in PoE PD version), but the input voltage must be higher than
15 V DC. If the input voltage is lower than 15 V DC and the PoE voltage is present (PoE LED
green on), the router will still be powered from the Ethernet connector via PoE.
This device can be connected only to PoE networks without routing to the outside plant.
You can not power the router via the ETH2 ports on the SWITCH router version. The PoE PD
is available on the ETH0 and ETH1 ports only.
Figure 34: PoE PD usage
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SmartFlex SR310