20.3.5 Notes on using PoE

(1) Power Allocation by power inline allocation limit

If you manually set the per-port power allocation in limit parameter of the configuration command power inline allocation, be sure to read the documentation for the powered device at your own risk.

Set the maximum power consumption of the power receiving device to a value that allows some margin. Manually setting a value that is less than the minimum power consumption required by the power receiving device may detect an overload and stop supplying power to the power receiving device. To recover, execute the operation-command activate power inline.

(2) When a line test is executed

If a line test (internal specification) is executed on PoE port, the power supply continues.

(3) Power supply according to port status

• The power supply is stopped when the system enters the shutdown state.

• When the unit enters inactive status, the power supply is continued.

(4) Categorizing Power Classes and Allocating Power Using Autoclass Feature

If the power class of the powered device exceeds the maximum power class of the port, it is classified as the maximum power class of the port. Also allocates the maximum supply power of the port if the maximum power of the powered device measured by Autoclass function exceeds the maximum supply power of the port.

In such cases, the system may detect an overload and stop supplying power to the power-receiving device. To recover, execute the operation-command activate power inline.