IEEE 802.3af Power over Ethernet standard

E1467

IEEE standard Power over Ethernet standard

The IEEE 802.3af Power over Ethernet standard defines a method for delivering electrical power along with data over standard Ethernet cabling to devices such as IP phones, wireless access points, and network cameras.

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All labels observed (5)

Label	Occurrences
IEEE 802.3af	9
IEEE 802.3af Power over Ethernet	1
IEEE 802.3af Power over Ethernet standard canonical	1
IEEE 802.3af-2003	1
IEEE 802.3at Power over Ethernet Plus standard	1

Statements (50)

Predicate	Object
instanceOf	IEEE standard ⓘ Power over Ethernet standard ⓘ
abbreviation	PD ⓘ PSE ⓘ
alsoKnownAs	PoE ⓘ
appliesTo	100BASE-TX ⓘ 10BASE-T ⓘ twisted-pair Ethernet cabling ⓘ
backwardCompatibleWith	non-PoE Ethernet devices ⓘ
category	networking standard ⓘ power delivery standard ⓘ
classificationMethod	power class levels ⓘ
defines	method for delivering electrical power over Ethernet cabling ⓘ power over data pairs for Ethernet ⓘ power over spare pairs for Ethernet ⓘ
definesDeviceType	Power Sourcing Equipment ⓘ Powered Device ⓘ
definesPoweringMode	Mode A ⓘ Mode B ⓘ
ensures	safe coexistence of PoE and non-PoE devices on same cable plant ⓘ
fullName	IEEE 802.3af Power over Ethernet standard self-linksurface differs ⓘ surface form: IEEE 802.3af Power over Ethernet
governs	interoperability between PoE equipment from different vendors ⓘ
includesMechanism	PD classification ⓘ PD detection ⓘ overload protection ⓘ short-circuit protection ⓘ
maximumPowerAtPSE	15.4 W ⓘ 15.4 watts ⓘ
maximumPowerDeliveredToPD	12.95 W ⓘ 12.95 watts ⓘ
modeADescription	power over data pairs (1-2 and 3-6) ⓘ
modeBDescription	power over spare pairs (4-5 and 7-8) ⓘ
nominalVoltage	48 V DC ⓘ 48 volts DC ⓘ
objective	provide power and data over a single Ethernet cable ⓘ
partOf	IEEE 802.3 Ethernet standard ⓘ surface form: IEEE 802.3 family of standards
powerClassRange	Class 0 to Class 3 ⓘ
publishedBy	Institute of Electrical and Electronics Engineers ⓘ
region	international ⓘ
supersededBy	IEEE 802.3at ⓘ
supportsCableLength	up to 100 meters ⓘ up to 328 feet ⓘ
usedFor	IP phones ⓘ VoIP phones ⓘ network cameras ⓘ small network switches ⓘ wireless access points ⓘ
usesConnector	RJ45 ⓘ
usesMedium	Category 3 or better twisted-pair cable ⓘ Category 5 or better twisted-pair cable ⓘ

Referenced by (13)

Full triples — surface form annotated when it differs from this entity's canonical label.

IEEE Standards Association → develops → IEEE 802.3af Power over Ethernet standard ⓘ

this entity surface form: IEEE 802.3at Power over Ethernet Plus standard

IEEE 802.3af Power over Ethernet standard → fullName → IEEE 802.3af Power over Ethernet standard self-linksurface differs ⓘ

subject surface form: IEEE 802.3af

this entity surface form: IEEE 802.3af Power over Ethernet

IEEE 802.3bt 4‑pair Power over Ethernet standard → extends → IEEE 802.3af Power over Ethernet standard ⓘ

subject surface form: IEEE 802.3bt