The Perfect Workgroup Switch When you connect the PD port (port 1) to a PoE+ enabled IEEE 802.3af/at compliant PoE switch, the Intellinet Network Solutions PoE-Powered 5-Port Gigabit Switch uses some of the electric current to power itself and passes the available surplus power to up to four PoE edge devices, such as VoIP phones, allowing you to realize the full potential of each of the PSE ports in your data center. Power over Ethernet 802.3at The Intellinet Network Solutions PoE-Powered 5-Port Gigabit Switch with PoE Passthrough supports the IEEE 802.3at protocol and is designed to inject up to 25 watts of power per port*. IEEE802.3af- or IEEE802.3at-compliant devices attached to the switch require no additional power, thus eliminating the time and expense of electrical rewiring and minimizing the unsightly clutter caused by power supplies and adapters in awkward places such as ceilings and walls. Any mix of PoE and non-PoE devices is supported, and thanks to its short-circuit, overload and high-voltage protection function, your equipment is well-protected. For devices that are not 802.3at/af compliant (legacy wireless access points or network cameras), we suggest the use of an Intellinet Network Solutions PoE/PoE+ Splitter.