YD/T 744-2009 English PDFUS$969.00 ยท In stock
Delivery: <= 6 days. True-PDF full-copy in English will be manually translated and delivered via email. YD/T 744-2009: Technical requirements and test methods for digital microwave telecommunication equipments (systems) of plesiochronois digital hierarchy (PDH) Status: Valid YD/T 744: Historical versions
Basic dataStandard ID: YD/T 744-2009 (YD/T744-2009)Description (Translated English): Technical requirements and test methods for digital microwave telecommunication equipments (systems) of plesiochronois digital hierarchy (PDH) Sector / Industry: Telecommunication Industry Standard (Recommended) Classification of Chinese Standard: M34 Classification of International Standard: 33.040.20 Word Count Estimation: 37,380 Date of Issue: 2009-12-11 Date of Implementation: 2010-01-01 Older Standard (superseded by this standard): YD/T 744-1995; YD/T 745-1995; YD/T 830-1996; YD/T 843-1996; YD/T 792-1995 Quoted Standard: CEPT/ERC/REC 12-10; GB 191; GB 3873; GB 4943; GB/T 2423.1; GB/T 2423.2; GB/T 2423.3; GB/T 7611-2001; ITU-R F.1191; ITU-R F.1496; ITU-R F.1497; ITU-R F.1520; ITU-R F.746; ITU-R F.748; ITU-R F.749; ITU-T G.826; ITU-T G.961; ITU-T I.431; YD 1138; YD/T 1077-2000; YD/T 1098-2001; YD/T 1136-2001; MIIT no [ 2008 ] No. 353; Ministry None [ 2000 ] No. 705 Regulation (derived from): MIIT (2009) No. 68; industry standard filing Notice 2010 No. 3 (total 123) Issuing agency(ies): Ministry of Industry and Information Technology Summary: This standard specifies the quasi-synchronous digital hierarchy (PDH) digital microwave communication equipment and systems, technical requirements and test methods, including quasi-synchronous digital hierarchy (PDH) digital microwave communication equipment and systems hypothetical reference connection, the channel and the digital segment, error performance, bands, channel arrangements, capacity range, availability indicators, and radio frequency (RF) interface characteristics and baseband interface characteristics of the technical requirements and test methods, taking into account the other businesses, protection switching, system performance, network management, power supply, environmental adaptability, security and other requirements. This standard applies to quasi-synchronous digital hierarchy (PDH) digital microwave communication equipment and systems. Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of YD/T 744-2009_English be delivered?Answer: Upon your order, we will start to translate YD/T 744-2009_English as soon as possible, and keep you informed of the progress. The lead time is typically 4 ~ 6 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of YD/T 744-2009_English with my colleagues?Answer: Yes. The purchased PDF of YD/T 744-2009_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 744-2009?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version YD/T 744-2009 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. |