The POE-CONV-2AF-AT are unique Gigabit PoE converters which allow a customer to use existing PoE switches to provide PoE+ functionality. They work by turning two 802.3af ports into one 802.3at port.
There are two RJ45 socket for input and one RJ45 socket for the output. One input accepts Data and Power, the second input accepts only Power. The design is isolated so input and output are isolated. The devices include protections for short circuit and overload.
Note: If the inputs come from the same PoE switch then the output power is full power. If the inputs come from different PoE sources, then the output power may be ½.