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YDN027-1997 English PDF

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YDN027-1997: Technical Requirements for SDH Transmission Network - Ring Network (Tentative Specifications)
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YDN 027-1997English1639 Add to Cart 7 days [Need to translate] Technical Requirements for SDH Transmission Network - Ring Network (Tentative Specifications) YDN 027-1997

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Standard similar to YDN027-1997

GB/T 41301   YD/T 1730   YD/T 1548.1   YDC 084   YDC 085   YDC 043.8   

Basic data

Standard ID YDN 027-1997 (YDN027-1997)
Description (Translated English) Technical Requirements for SDH Transmission Network - Ring Network (Tentative Specifications)
Sector / Industry Telecommunication Industry Standard
Classification of Chinese Standard M11
Word Count Estimation 41,455
Date of Issue 4/2/1997
Date of Implementation 5/1/1997
Adopted Standard ITU T G.841, MOD
Summary The standard for synchronous digital hierarchy (SDH) add-drop multiplexers (ADM) consisting of self-healing, provide the technical specifications of systems and networks. Apply to cable for medium SDH transmission system. Self-healing ring structure is divided into two categories, namely, channel switching ring and switching ring MSP. The standard four common structure of the specification. The four common structure is two-fiber unidirectional path protection ring, two-fiber bidirectional path protection ring, four-fiber bidirectional multiplex section shared protection ring and two-fiber bidirectional multiplex section shared protection ring.

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