This object sets the maximum power, in milliwatts, a single PoE port may draw before the port is shut down; it only takes effect when the module is in realtime power mode, since class mode instead uses the port's IEEE class upper bound. An admin lowers or raises this per-port ceiling to protect the module's overall power budget from any one device drawing excessively. For example, an admin might set this to 7000 milliwatts on a port feeding a low-power IP phone to prevent an unexpected device from overdrawing power.