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YDN121-1999 English PDF

US$1559.00 ยท In stock
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YDN121-1999: Technical specifications for SDH network synchronous state information (internal standard)
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
YDN 121-1999English1559 Add to Cart 6 days [Need to translate] Technical specifications for SDH network synchronous state information (internal standard) YDN 121-1999

PDF similar to YDN121-1999


Standard similar to YDN121-1999

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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