What is the designated minimum power for Class 2 PD at PSE?

The designated minimum power for Class 2 Power Devices (PD) at Power Sourcing Equipment (PSE) is 7.0 W. This classification stems from the IEEE 802.3 standards for Power over Ethernet (PoE), which delineate various classes of PDs based on their power requirements.

Class 2 PDs are specifically defined to operate within the range of greater than 3.84 W and up to 7.0 W. This allows for a variety of low-power devices to function effectively over Ethernet cabling while benefiting from PoE technology. The standard provides a clear framework ensuring that equipment can draw enough power for its operation without exceeding the limits set for its class.

Understanding this standard is crucial as it influences the design of network systems, determining what devices can be used together and ensuring compatibility with existing infrastructure.