YDN121-1999 English PDF

US$1559.00 · In stock
Delivery: <= 6 days. True-PDF full-copy in English will be manually translated and delivered via email.
YDN121-1999: Technical specifications for SDH network synchronous state information (internal standard)

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
YDN 121-1999	1559	Add to Cart	6 days	Technical specifications for SDH network synchronous state information (internal standard)

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GB/T 41301   YD/T 1730   YD/T 1548.1   YDB 127   YDB 130.1   YDB 121   

Basic data

Standard ID: YDN 121-1999 (YDN121-1999)
Description (Translated English): Technical specifications for SDH network synchronous state information (internal standard)
Sector / Industry: Telecommunication Industry Standard
Classification of Chinese Standard: M10
Word Count Estimation: 39,352
Date of Issue: 11/11/1999
Date of Implementation: 4/1/2000
Adopted Standard: ITU-T G.781, NEQ; ITU-T G.704, NEQ; ITU-T G.707, NEQ; ITU-T G.783, NEQ; ITU-T G.803, NEQ; ITU-T G.813, NEQ
Summary: This standard specifies the SSM function and use of SDH network. This standard applies to the development of SDH equipment, and SDHM synchronization network planning, engineering and maintenance management.

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