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Optical interface requirements for equipments and systems relating to the synchronous digital hierarchy
Translate name
STANDARD published on 5.4.2006
Designation standards: GB/T 20185-2006
Publication date standards: 5.4.2006
SKU: NS-874189
Country: Chinese technical standard
Category: Technical standards GB
Latest update: 2026-11-04 (Number of items: 2 209 068)
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