ITU-T Recommendation G.993.2
E438943
ITU-T Recommendation G.993.2 is an international telecommunications standard that defines VDSL2, a high-speed digital subscriber line technology for broadband access over copper telephone lines.
All labels observed (3)
| Label | Occurrences |
|---|---|
| VDSL2 | 2 |
| ITU-T Recommendation G.993.2 canonical | 1 |
| Very-high-bit-rate Digital Subscriber Line 2 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4402339 — 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: ITU-T Recommendation G.993.2 Context triple: [ITU-T Recommendations, hasPart, ITU-T Recommendation G.993.2]
-
A.
ITU-T Recommendation G.992.1
ITU-T Recommendation G.992.1 is an international standard that defines the technical specifications for Asymmetric Digital Subscriber Line (ADSL) broadband transmission over traditional copper telephone lines.
-
B.
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.
-
C.
ITU-T G.9960
ITU-T G.9960 is an international telecommunications standard that defines high-speed broadband data transmission over power lines and other existing wiring in homes and buildings.
-
D.
ITU-T G.9961
ITU-T G.9961 is an international telecommunications standard that defines the data link layer and management procedures for broadband power line communication systems.
-
E.
ITU-T G.8272
ITU-T G.8272 is an international telecommunication standard that specifies the primary reference time clock (PRTC) requirements for precise time and phase synchronization in packet-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: ITU-T Recommendation G.993.2 Target entity description: ITU-T Recommendation G.993.2 is an international telecommunications standard that defines VDSL2, a high-speed digital subscriber line technology for broadband access over copper telephone lines.
-
A.
ITU-T Recommendation G.992.1
ITU-T Recommendation G.992.1 is an international standard that defines the technical specifications for Asymmetric Digital Subscriber Line (ADSL) broadband transmission over traditional copper telephone lines.
-
B.
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.
-
C.
ITU-T G.9960
ITU-T G.9960 is an international telecommunications standard that defines high-speed broadband data transmission over power lines and other existing wiring in homes and buildings.
-
D.
ITU-T G.9961
ITU-T G.9961 is an international telecommunications standard that defines the data link layer and management procedures for broadband power line communication systems.
-
E.
ITU-T G.8272
ITU-T G.8272 is an international telecommunication standard that specifies the primary reference time clock (PRTC) requirements for precise time and phase synchronization in packet-based networks.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
ITU-T Recommendation
ⓘ
telecommunications standard ⓘ |
| abbreviation | G.993.2 ⓘ |
| appliesTo |
FTTC architectures
ⓘ
FTTN architectures ⓘ point-to-point DSL links ⓘ |
| category |
DSL standard
ⓘ
broadband access standard ⓘ |
| defines |
VDSL2
ⓘ
linked to:
xDSL technologies
band plans for VDSL2 ⓘ data transmission over copper pairs ⓘ error correction mechanisms for VDSL2 ⓘ framing procedures for VDSL2 ⓘ modulation schemes for VDSL2 ⓘ physical layer specifications for VDSL2 ⓘ profiles for VDSL2 operation ⓘ vectoring support for VDSL2 ⓘ |
| definesFrequencyRange | up to 30 MHz depending on profile ⓘ |
| definesMaximumDownstreamRate | up to approximately 200 Mbit/s under ideal conditions ⓘ |
| definesMaximumUpstreamRate | up to approximately 100 Mbit/s under ideal conditions ⓘ |
| ensures | compatibility between VDSL2 DSLAMs and CPE ⓘ |
| focusesOn |
broadband access
ⓘ
digital subscriber line technology ⓘ |
| partOf |
ITU-T G series of recommendations
ⓘ
linked to:
ITU-T G series
|
| publishedBy |
ITU-T
ⓘ
linked to:
ITU Telecommunication Standardization Sector
International Telecommunication Union ⓘ |
| relatedTo |
ADSL
ⓘ
ADSL2 ⓘ
linked to:
xDSL technologies
ADSL2+ ⓘ
linked to:
xDSL technologies
G.992.1 ⓘ G.992.3 ⓘ G.992.5 ⓘ |
| sector | ITU-T Study Group 15 ⓘ |
| standardizes |
Very-high-bit-rate Digital Subscriber Line 2
ⓘ
linked to:
ITU-T Recommendation G.993.2
interoperability between VDSL2 equipment ⓘ |
| subjectArea |
access networks
ⓘ
wired telecommunications ⓘ xDSL technologies ⓘ |
| successorOf | ITU-T Recommendation G.993.1 ⓘ |
| supportsApplication |
IPTV
ⓘ
VoIP ⓘ broadband Internet access ⓘ high-speed data services ⓘ triple-play services ⓘ |
| supportsTechnology | VDSL2 access networks ⓘ |
| usesMedium |
copper telephone lines
ⓘ
twisted pair copper loops ⓘ |
| usesModulation |
DMT
ⓘ
Discrete Multi-Tone modulation ⓘ
linked to:
OFDM
|
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: ITU-T Recommendation G.993.2 Description of subject: ITU-T Recommendation G.993.2 is an international telecommunications standard that defines VDSL2, a high-speed digital subscriber line technology for broadband access over copper telephone lines.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: ITU-T Recommendation G.993.2
linked to: ITU-T Recommendation G.993.2
linked to: ITU-T Recommendation G.993.2