YD/T 1022-2018 English PDFYD/T 1022: Historical versions
Basic dataStandard ID: YD/T 1022-2018 (YD/T1022-2018)Description (Translated English): (Synchronous Digital Hierarchy (SDH) device functional requirements) Sector / Industry: Telecommunication Industry Standard (Recommended) Classification of Chinese Standard: M38 Date of Issue: 2018-12-21 Date of Implementation: 2019-04-01 Older Standard (superseded by this standard): YD/T 1022-1999 Regulation (derived from): Ministry of Industry and Information Technology Announcement No.67 of 2018 Issuing agency(ies): Ministry of Industry and Information Technology Summary: This standard specifies the layered structure of SDH equipment, the atomic function of each layer, the interface signal of atomic function, the processing process, alarm detection and performance monitoring. It also regulates the input jitter tolerance, output jitter and jitter gain of SDH equipment. . This standard is applicable to transmission equipment using SDH technology system in China's public telecommunication network. Similar equipment in the special telecommunication network can also be used for reference. Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of YD/T 1022-2018_English be delivered?Answer: Upon your order, we will start to translate YD/T 1022-2018_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of YD/T 1022-2018_English with my colleagues?Answer: Yes. The purchased PDF of YD/T 1022-2018_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version YD/T 1022-2018?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version YD/T 1022-2018 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |