Plesiochronous Digital Hierarchy

E1817082 UNEXPLORED

Plesiochronous Digital Hierarchy (PDH) is an older telecommunications multiplexing standard used to transport multiple digital voice and data channels over the same physical medium, preceding and eventually being superseded by Synchronous Digital Hierarchy (SDH).

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All labels observed (2)

Label	Occurrences
Plesiochronous Digital Hierarchy canonical	1
plesiochronous digital hierarchy	1

Referenced by (2)

Full triples — surface form annotated when it differs from this entity's canonical label.

Synchronous Digital Hierarchy → replaced → Plesiochronous Digital Hierarchy ⓘ

Recommendation G-series (Transmission systems and media, digital systems and networks) → appliesTo → plesiochronous digital hierarchy ⓘ

linked to: Plesiochronous Digital Hierarchy