YDN027-1997 English PDF

US$1639.00 · In stock
Delivery: <= 7 days. True-PDF full-copy in English will be manually translated and delivered via email.
YDN027-1997: Technical Requirements for SDH Transmission Network - Ring Network (Tentative Specifications)

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
YDN 027-1997	1639	Add to Cart	7 days	Technical Requirements for SDH Transmission Network - Ring Network (Tentative Specifications)

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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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