ITU-T G.781 (timing characteristics reference)
E759716
ITU-T G.781 is an international telecommunication standard that defines timing and synchronization characteristics and requirements for network equipment in digital transport networks.
All labels observed (1)
| Label | Occurrences |
|---|---|
| ITU-T G.781 (timing characteristics reference) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8821051 — 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 G.781 (timing characteristics reference) Context triple: [Ethernet equipment slave clock, supportsStandard, ITU-T G.781 (timing characteristics reference)]
-
A.
ITU-T G.8261
ITU-T G.8261 is an international telecommunication standard that defines timing and synchronization requirements for packet-based networks, particularly for supporting services like mobile backhaul and other time-sensitive applications.
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B.
ITU-T G.8271
ITU-T G.8271 is an international telecommunication standard that defines the overall time and phase synchronization requirements and architecture for packet-based networks, particularly for mobile and other time-sensitive services.
-
C.
ITU-T G.826 series
The ITU-T G.826 series is a set of international telecommunications standards that define performance and synchronization requirements for digital networks, particularly for timing and packet-based transport.
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D.
ITU-T G.9807.1
ITU-T G.9807.1 is an international telecommunications standard that defines XGS-PON, a 10 Gbit/s-capable passive optical network system for high-speed broadband access.
-
E.
ITU-T G.8262
ITU-T G.8262 is an international telecommunications standard that specifies requirements for Ethernet equipment clocks used to distribute precise frequency synchronization over 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 G.781 (timing characteristics reference) Target entity description: ITU-T G.781 is an international telecommunication standard that defines timing and synchronization characteristics and requirements for network equipment in digital transport networks.
-
A.
ITU-T G.8261
ITU-T G.8261 is an international telecommunication standard that defines timing and synchronization requirements for packet-based networks, particularly for supporting services like mobile backhaul and other time-sensitive applications.
-
B.
ITU-T G.8271
ITU-T G.8271 is an international telecommunication standard that defines the overall time and phase synchronization requirements and architecture for packet-based networks, particularly for mobile and other time-sensitive services.
-
C.
ITU-T G.826 series
The ITU-T G.826 series is a set of international telecommunications standards that define performance and synchronization requirements for digital networks, particularly for timing and packet-based transport.
-
D.
ITU-T G.9807.1
ITU-T G.9807.1 is an international telecommunications standard that defines XGS-PON, a 10 Gbit/s-capable passive optical network system for high-speed broadband access.
-
E.
ITU-T G.8262
ITU-T G.8262 is an international telecommunications standard that specifies requirements for Ethernet equipment clocks used to distribute precise frequency synchronization over packet-based networks.
- F. None of above. chosen
Statements (27)
| Predicate | Object |
|---|---|
| instanceOf |
ITU-T Recommendation
ⓘ
telecommunication standard ⓘ |
| aimsTo |
ensure interoperability of timing functions in digital transport networks
ⓘ
ensure reliable synchronization performance in transport networks ⓘ |
| appliesTo |
digital transport network equipment
ⓘ
synchronous digital hierarchy equipment ⓘ |
| category | timing and synchronization standard ⓘ |
| concerns |
network timing performance
ⓘ
synchronization network design ⓘ |
| defines |
synchronization characteristics for network equipment
ⓘ
timing characteristics for network equipment ⓘ |
| field |
digital transport networks
ⓘ
network synchronization ⓘ telecommunications ⓘ |
| governingBody |
ITU-T Study Group responsible for transport and access networks
ⓘ
linked to:
ITU-T Study Group 15
|
| language | English ⓘ |
| partOfSeries |
ITU-T G-series Recommendations
ⓘ
linked to:
ITU-T G series
|
| publishedBy |
ITU Telecommunication Standardization Sector
ⓘ
International Telecommunication Union ⓘ |
| relatedTo |
ITU-T G.810
ⓘ
linked to:
ITU-T G.81x series
ITU-T G.811 ⓘ
linked to:
ITU-T G.81x series
ITU-T G.812 ⓘ ITU-T G.813 ⓘ |
| specifies |
requirements for synchronization in digital transport networks
ⓘ
requirements for timing in digital transport networks ⓘ |
| useCase |
design of synchronization networks
ⓘ
specification of timing requirements for transport equipment ⓘ |
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 G.781 (timing characteristics reference) Description of subject: ITU-T G.781 is an international telecommunication standard that defines timing and synchronization characteristics and requirements for network equipment in digital transport networks.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
Ethernet equipment slave clock
→
supportsStandard
→
ITU-T G.781 (timing characteristics reference)
ⓘ
subject linked to:
Ethernet equipment slave clock (EEC)