MaxLink MAXPIDIN30-240 is an active DIN rail mounting PoE injector with DC power input from 44 to 57 V or 100-240 VAC and built in power converter. The output of this power supply is 1Gbit port with support of the 802.3af/at (55 V) which is dedicated for Wi-Fi, VoIP, or wireless links. The PoE's distribution is on the pins 4, 5 (+) and 7, 8 (-). The second 1Gbit LAN port is used for data input. Total power is 30 W. The main advantage of this power supply is 6kV (10/700us) overvoltage protection.
This PoE injector is best for using in the places where you already have a main power supply such as the solar panels or a high voltage power supply.