The device accepts power from the power jack or from the first Ethernet port:
Direct-input power jack (5.5 mm outside and 2 mm inside, female, pin positive plug) accepts 24-57 V DC.
The First Ethernet port accepts Power over Ethernet 24-57 V DC.
Best to ask support, then you’re sure.
And ask in parallel they make a note of it somewhere on the product pages / specification so next one asking the same question also knows.
Ooookay… So next time I’ll move the device 90°… Then I’ll see that there are two screws on the connector, and this will avoid asking a useless question.