Which networking standard is associated with Power over Ethernet technology?

The networking standard associated with Power over Ethernet (PoE) technology is 802.3af, often considered the foundational standard for PoE. This standard allows Ethernet cables to deliver both data and electrical power to devices such as IP cameras, VoIP phones, and wireless access points over a single cable.

In addition to 802.3af, the standard 802.3at, also known as PoE+, is an enhancement of the original standard that allows for the delivery of more power (up to 30 watts per port) to devices, catering to those that require additional power. While 802.3at supports PoE devices, it is important to recognize that 802.3af is the original specification on which PoE technology was built.

The other standards mentioned, such as 802.3an and 802.3z, pertain to different Ethernet specifications. 802.3an refers to 10G BASE-T, which deals with 10 Gigabit Ethernet over twisted pair cabling, and 802.3z pertains to Gigabit Ethernet over fiber optics. These standards do not relate to the function of delivering power through Ethernet cabling like 802.3af and 802.3at do