IEEE 802.3at
E10412
IEEE 802.3at is a Power over Ethernet (PoE+) standard that increases the power available to networked devices beyond the original PoE specification, enabling support for more demanding equipment such as PTZ cameras and wireless access points.
All labels observed (3)
| Label | Occurrences |
|---|---|
| IEEE 802.3at canonical | 7 |
| PoE+ | 1 |
| Power over Ethernet Plus | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T73316 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: IEEE 802.3at Context triple: [IEEE 802.3af, supersededBy, IEEE 802.3at]
-
A.
IEEE 802.3af 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.
-
B.
IEEE 802.3bt 4‑pair Power over Ethernet standard
The IEEE 802.3bt 4‑pair Power over Ethernet standard is a networking specification that enables higher power delivery over all four twisted pairs of Ethernet cabling to support more demanding devices such as pan-tilt-zoom cameras, wireless access points, and building automation systems.
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C.
IEEE 802.3 Ethernet standard
The IEEE 802.3 Ethernet standard is the foundational specification that defines wired Ethernet networking technologies, including physical media, data link layer protocols, and methods for high-speed data transmission in local and metropolitan area networks.
-
D.
IEEE 802.3bz 2.5G/5GBASE‑T Ethernet standard
IEEE 802.3bz 2.5G/5GBASE‑T Ethernet standard defines multi‑gigabit Ethernet operation over existing twisted‑pair copper cabling, enabling 2.5 and 5 Gbit/s network speeds for applications like upgraded Wi‑Fi access points and enterprise networks.
-
E.
IEEE 802.1 standards family
The IEEE 802.1 standards family is a collection of IEEE networking standards that define higher-layer LAN protocols for bridging, network management, security, and time-sensitive networking over IEEE 802-based networks.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: IEEE 802.3at Target entity description: IEEE 802.3at is a Power over Ethernet (PoE+) standard that increases the power available to networked devices beyond the original PoE specification, enabling support for more demanding equipment such as PTZ cameras and wireless access points.
-
A.
IEEE 802.3af 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.
-
B.
IEEE 802.3bt 4‑pair Power over Ethernet standard
The IEEE 802.3bt 4‑pair Power over Ethernet standard is a networking specification that enables higher power delivery over all four twisted pairs of Ethernet cabling to support more demanding devices such as pan-tilt-zoom cameras, wireless access points, and building automation systems.
-
C.
IEEE 802.3 Ethernet standard
The IEEE 802.3 Ethernet standard is the foundational specification that defines wired Ethernet networking technologies, including physical media, data link layer protocols, and methods for high-speed data transmission in local and metropolitan area networks.
-
D.
IEEE 802.3bz 2.5G/5GBASE‑T Ethernet standard
IEEE 802.3bz 2.5G/5GBASE‑T Ethernet standard defines multi‑gigabit Ethernet operation over existing twisted‑pair copper cabling, enabling 2.5 and 5 Gbit/s network speeds for applications like upgraded Wi‑Fi access points and enterprise networks.
-
E.
IEEE 802.1 standards family
The IEEE 802.1 standards family is a collection of IEEE networking standards that define higher-layer LAN protocols for bridging, network management, security, and time-sensitive networking over IEEE 802-based networks.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
IEEE 802.3 standard amendment
ⓘ
Power over Ethernet standard ⓘ |
| alsoKnownAs |
IEEE 802.3at
ⓘ
surface form:
PoE+
|
| appliesTo |
IEEE 802.3 Ethernet standard
ⓘ
surface form:
Ethernet
|
| backwardCompatibleWith |
IEEE 802.3af Power over Ethernet standard
ⓘ
surface form:
IEEE 802.3af
|
| cableType | Category 5 or better twisted-pair copper cabling ⓘ |
| category |
IEEE 802.3 Ethernet standard
ⓘ
surface form:
IEEE 802.3 physical layer specification
|
| compatibleWith |
1000BASE-T
ⓘ
100BASE-TX ⓘ 10BASE-T ⓘ |
| defines | methods for delivering power over Ethernet cabling ⓘ |
| enables | remote powering of networked devices ⓘ |
| extends |
IEEE 802.3af Power over Ethernet standard
ⓘ
surface form:
IEEE 802.3af
|
| field |
computer networking
ⓘ
data communications ⓘ |
| follows |
IEEE 802.3af Power over Ethernet standard
ⓘ
surface form:
IEEE 802.3af
|
| improves | available power budget per Ethernet port ⓘ |
| maximumPDInputPower | 25.5 W ⓘ |
| maximumPSEOutputPowerPerPort | 30 W ⓘ |
| organization | IEEE 802.3 Working Group ⓘ |
| partOf |
IEEE 802.3 Ethernet standard
ⓘ
surface form:
IEEE 802.3
|
| powerClassification |
Class 0
ⓘ
Class 1 ⓘ Class 2 ⓘ Class 3 ⓘ Class 4 ⓘ |
| powerDeliveryMethod |
phantom power over data pairs
ⓘ
power over spare pairs ⓘ |
| powerNegotiation |
classification based on current draw
ⓘ
optional LLDP-based power negotiation ⓘ |
| publishedBy |
IEEE Standards Association
ⓘ
Institute of Electrical and Electronics Engineers ⓘ |
| region | international ⓘ |
| standardizes |
IEEE 802.3at
self-linksurface differs
ⓘ
surface form:
Power over Ethernet Plus
|
| supports | Power over Ethernet ⓘ |
| supportsDeviceType |
IP phones
ⓘ
PTZ network cameras ⓘ multi-radio access points ⓘ thin clients ⓘ video phones ⓘ wireless access points ⓘ |
| supportsMode |
endspan power sourcing equipment
ⓘ
midspan power sourcing equipment ⓘ |
| supportsTopology | star-wired Ethernet LANs ⓘ |
| useCase |
campus networks
ⓘ
enterprise networks ⓘ industrial Ethernet deployments ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: IEEE 802.3at Description of subject: IEEE 802.3at is a Power over Ethernet (PoE+) standard that increases the power available to networked devices beyond the original PoE specification, enabling support for more demanding equipment such as PTZ cameras and wireless access points.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
IEEE 802.3af
subject surface form:
IEEE 802.3bt
subject surface form:
IEEE 802.3bt
this entity surface form:
PoE+
this entity surface form:
Power over Ethernet Plus