Passive Power over Ethernet (PoE) adapter allows to power devices operating in LAN networks via twisted-pair cable (e.g. UTP)
Using this solution, it is possible to power the access point placed in a hermetic housing next to the antenna (in order to reduce losses on the antenna cable) using twisted pair cables from the power supply located inside the building
Devices that do not have the possibility of power supply via the Ethernet port should be connected as shown in diagram 2