Chester Digital Supplies offers a range of Power over Ethernet (PoE) switches that enable you to provide power to compatible PoE devices directly from the switch via the Ethernet cable, therefore, removing the need for a power supply local to the device. A PoE switch is commonly used for VoIP phones, access points and IP cameras.

Difference between PoE and PoE+

PoE is the 802.3af standard, and PoE+ is the 802.3at standard. The main difference between the 802.3af (PoE) and 802.3at (PoE+) standards is the maximum amount of power they provide over the data/network cabling. The maximum amount of power for the 802.3af (PoE) standard is 15.4 watts per port. The maximum for the 802.3at (PoE+) standard is 30 watts per port. Both are capable of supplying power up to a maximum 100m distance over a CAT5e/CAT6 cable.


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