YD/T 1022-1999
Requirement of synchronous digital hierarchy (SDH) equipment function (English Version)

Standard No.

YD/T 1022-1999

Language

Chinese, Available in English version

Release Date

1999

Published By

Professional Standard - Post and Telecommunication

Status

Be replaced 2019-04

Replace By

YD/T 1022-2018

Latest

YD/T 1022-2018

Scope

This standard specifies the main functional requirements for SDH equipment using STM-N (N=1, 4, 16, 64) in my country's public telecommunications network. This standard applies to equipment in SDH digital signal transmission systems. Similar equipment in dedicated telecommunications networks can also refer to this standard.

YD/T 1022-1999 history

• 2018 YD/T 1022-2018 Synchronous Digital Hierarchy (SDH) equipment functional requirements
• 1999 YD/T 1022-1999 Requirement of synchronous digital hierarchy (SDH) equipment function