Power-over-ethernet lighting system

A control method for controlling a Power-over-Ethernet (PoE) lighting system, the PoE lighting system comprising:

• a first power source equipment (PSE) device, wherein the first PSE device is adapted to provide power based on:
• a first power received from a first power source or
• a second power received from a second PSE device,
• the second PSE device for providing the second power to the first PSE device via a first fire-resistant PoE connection in case of emergency,
• an emergency lighting device, coupled to the first PSE device via a second fire-resistant PoE connection,
• a non-emergency lighting device;
• the control method being adapted to control the PoE lighting system such that:
• the second PSE device provides the second power to the first PSE device via the first fire-resistant PoE connection in case of emergency,
• the second PSE device provides control data via the first fire-resistant PoE connection to the first PSE device for controlling the non-emergency lighting device,
• the first PSE device detects whether power is received from the second PSE device,
• the first PSE device provides power to the emergency lighting device based on the second power via the second fire-resistant PoE connection, if it has been detected that power has been received from the second PSE device,
• the first PSE device provides power to the non-emergency lighting device based on the first power, if it has not been detected that power has been received from the second PSE device, and
• the first PSE device is adapted to consider the provided control data only, if no power is received from the second PSE device.