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Erlang (unit)

The erlang (symbol E) is a dimensionless unit that is used in telephony as a measure of offered load or carried load on service-providing elements such as telephone circuits or telephone switching equipment. A single cord circuit has the capacity to be used for 60 minutes in one hour. Full utilization of that capacity, 60 minutes of traffic, constitutes…

Measurement, Erlang B formula & Erlang's analysis

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Erlang B formula

9 related topics

Erlang's analysis

6 related topics

Traffic measurements of a telephone circuit

1 related topics

Erlang C formula

2 related topics

Key facts & relationships

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Named after
Agner Krarup Erlang
Symbol
E
Unit of
offered load, carried load
Unit system
ITU Telecommunication Standardization Sector standards

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Overview

Traffic measurements of a telephone circuit

Erlang's analysis

Erlang B formula

Extended Erlang B

Erlang C formula

Limitations of the Erlang formula

Advanced semantic analysis

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Map overview Semantic statistics

Erlang (unit)

Nodes36
Edges35
Triples9
Avg. degree1.94
Density0.055556
Components1

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Erlang (unit)

Top relations

Named after · 1
Erlang (unit) → Agner Krarup Erlang
Symbol · 1
Erlang (unit) → E
Unit of · 1
Erlang (unit) → offered load, carried load
Unit system · 1
Erlang (unit) → ITU Telecommunication Standardization Sector standards

Important terminology Word statistics

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Important terminology

traffic erlang formula offered number used call calls probability telephone system servers erlangs service one carried time average queue circuits

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Erlang (unit)Named afterAgner Krarup Erlang1.00infobox
Erlang (unit)SymbolE1.00infobox
Erlang (unit)Unit ofoffered load, carried load1.00infobox
Erlang (unit)Unit systemITU Telecommunication Standardization Sector standards1.00infobox
telephone circuits or telephone switching equipmentinstance ofis a dimensionless unit that is used in telephony as a measure of offered load or carried load on service-providing elements0.80text
43.5instance ofwhich can be a non-integer0.80text
serversinstance ofPb is the probability of blockingm is the number of identical parallel resources0.80text
telephone linesinstance ofPb is the probability of blockingm is the number of identical parallel resources0.80text
etc.Einstance ofPb is the probability of blockingm is the number of identical parallel resources0.80text

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