G.fast
E216138
G.fast is a broadband access technology standard that delivers high-speed internet over existing copper telephone lines, enabling fiber-like speeds for last-mile connections.
All labels observed (2)
| Label | Occurrences |
|---|---|
| G.fast canonical | 4 |
| G.fast family of standards | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1937812 — 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: G.fast Context triple: [ITU-T Study Group 15, fieldOfWork, G.fast]
-
A.
ITU-T G.984 series
The ITU-T G.984 series is an international telecommunications standard that specifies the architecture, requirements, and transmission protocols for Gigabit-capable Passive Optical Networks (GPON) used in broadband fiber access.
-
B.
GPON
GPON (Gigabit Passive Optical Network) is a high-speed fiber-optic access technology that delivers broadband internet, voice, and video services over a shared passive optical infrastructure.
-
C.
DOCSIS
DOCSIS is an international telecommunications standard that enables high-speed data transmission over existing cable television systems, commonly used for broadband internet services.
-
D.
NG-PON2
NG-PON2 is a next-generation passive optical network standard that delivers higher bandwidth, wavelength multiplexing, and improved scalability for fiber-to-the-premises and related broadband services.
-
E.
IEEE 802.3bz
IEEE 802.3bz is an Ethernet standard that defines 2.5GBASE-T and 5GBASE-T operation over existing twisted-pair copper cabling, enabling higher network speeds without requiring new cabling infrastructure.
- 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: G.fast Target entity description: G.fast is a broadband access technology standard that delivers high-speed internet over existing copper telephone lines, enabling fiber-like speeds for last-mile connections.
-
A.
ITU-T G.984 series
The ITU-T G.984 series is an international telecommunications standard that specifies the architecture, requirements, and transmission protocols for Gigabit-capable Passive Optical Networks (GPON) used in broadband fiber access.
-
B.
GPON
GPON (Gigabit Passive Optical Network) is a high-speed fiber-optic access technology that delivers broadband internet, voice, and video services over a shared passive optical infrastructure.
-
C.
DOCSIS
DOCSIS is an international telecommunications standard that enables high-speed data transmission over existing cable television systems, commonly used for broadband internet services.
-
D.
NG-PON2
NG-PON2 is a next-generation passive optical network standard that delivers higher bandwidth, wavelength multiplexing, and improved scalability for fiber-to-the-premises and related broadband services.
-
E.
IEEE 802.3bz
IEEE 802.3bz is an Ethernet standard that defines 2.5GBASE-T and 5GBASE-T operation over existing twisted-pair copper cabling, enabling higher network speeds without requiring new cabling infrastructure.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
ITU-T recommendation
ⓘ
broadband access technology standard ⓘ digital subscriber line technology ⓘ |
| alsoKnownAs | Gfast ⓘ |
| belongsToFamily | DSL technologies ⓘ |
| comparedTo |
VDSL2
ⓘ
linked to:
ITU-T Recommendation G.993.2
|
| compatibleWithInfrastructure | existing copper telephone wiring ⓘ |
| designedToProvide | fiber-like speeds over copper ⓘ |
| hasRecommendationNumber |
G.9700
ⓘ
linked to:
G.826x
G.9701 ⓘ |
| implementsFeature |
crosstalk cancellation
ⓘ
dynamic spectrum management ⓘ reverse power feeding support ⓘ |
| layerModel | physical layer access technology ⓘ |
| maximumAggregateRate | approximately 1 Gbit/s over short copper loops ⓘ |
| maximumDownstreamRate | approximately 1 Gbit/s under ideal conditions ⓘ |
| optimizedForLoopLength | below 100 meters for highest speeds ⓘ |
| powerFeedingOption | reverse power feeding from customer premises equipment ⓘ |
| primaryUse | fixed broadband access ⓘ |
| publicationYear | 2014 ⓘ |
| regionOfDeployment |
Asia-Pacific
ⓘ
Europe ⓘ North America ⓘ |
| standardFamily |
ITU-T G-series recommendations
ⓘ
linked to:
ITU-T Recommendations
|
| standardizedBy |
ITU-T Study Group 15
ⓘ
International Telecommunication Union ⓘ |
| successorOf | VDSL2 in very-high-speed short-loop scenarios ⓘ |
| supportsServiceType |
IPTV
ⓘ
VoIP ⓘ high-speed internet access ⓘ triple-play services ⓘ |
| supportsTopology |
point-to-multipoint
ⓘ
point-to-point ⓘ |
| supportsUseCase |
fiber-to-the-basement
ⓘ
fiber-to-the-building ⓘ fiber-to-the-curb ⓘ fiber-to-the-distribution-point ⓘ last-mile broadband over copper ⓘ |
| supportsVectoring | yes ⓘ |
| typicalLoopLength | less than 250 meters ⓘ |
| usesDuplexMethod |
TDD
ⓘ
time-division duplexing ⓘ |
| usesFrequencyRange |
up to about 106 MHz in early profiles
ⓘ
up to about 212 MHz in later profiles ⓘ |
| usesMedium |
existing copper access network
ⓘ
twisted-pair copper telephone lines ⓘ |
| usesModulation |
DMT
ⓘ
discrete multitone modulation ⓘ |
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: G.fast Description of subject: G.fast is a broadband access technology standard that delivers high-speed internet over existing copper telephone lines, enabling fiber-like speeds for last-mile connections.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: G.fast