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GB/T 14731-2008 English PDF

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US$149.00 · In stock
Delivery: <= 2 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 14731-2008: Synchronous digital hierarchy (SDH) bit rates
Status: Valid

GB/T 14731: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 14731-2008	149	Add to Cart	2 days	Synchronous digital hierarchy (SDH) bit rates	Valid
GB/T 14731-1993	199	Add to Cart	2 days	Synchronous digital hierarchy Bit rates	Obsolete

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Basic data

Standard ID: GB/T 14731-2008 (GB/T14731-2008)
Description (Translated English): Synchronous digital hierarchy (SDH) bit rates
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: M33
Classification of International Standard: 33.040.20
Word Count Estimation: 5,595
Date of Issue: 2008-10-07
Date of Implementation: 2009-04-01
Older Standard (superseded by this standard): GB/T 14731-1993
Quoted Standard: GB/T 15409-2008
Regulation (derived from): Announcement of Newly Approved National Standards No. 17 of 2008 (No. 130 overall)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the synchronous digital hierarchy (SDH) levels bitrate. This standard applies to SDH to public telecommunication networks and private telecommunications networks, including network node interface (NNI), with SDH optical interface cable digital line system, digital microwave systems.

GB/T 14731-2008: Synchronous digital hierarchy (SDH) bit rates

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Synchronous digital hierarchy (SDH) bit rates ICS 33.040.20 M33 National Standards of People's Republic of China Replacing GB/T 14731-1993 Synchronous Digital Hierarchy (SDH) bit rates Posted 2008-10-07 2009-04-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

The standard reference International Telecommunication Union - Telecommunication Standardization Sector (ITU-T) Recommendation G. 707/Y. 1322.2007 "Synchronous Digital Hierarchy (SDH) Network Node Interface, "Section 6.3. Writing rules using the relevant provisions of the work of standardization. This standard replaces GB/T 14731-1993 "Synchronous Digital Hierarchy (SDH) bit rate." This standard GB/T 14731-1993 specific amendments are as follows. a) According to the work of standardization of the relevant provisions of the original standards in Chapter 1, "subject matter and scope" was changed to Chapter 1 "Scope", Chapter 2, "the term" modified to Chapter 3, "Terms and Definitions", it adds another Chapter 2, "Normative references" and Chapter 4, "Abbreviations"; b) Chapter 4, "bit-rate synchronous digital hierarchy" was changed to Chapter 5, "bit-rate synchronous digital hierarchy," while according to ITU-T built Yee G. 707/Y. 1322.2007 adds support for STM-0, STM-64, STM-256 signal bit rate of the relevant norms. The standard proposed by the Ministry of Industry and Information Technology of the People's Republic of China. The standard by the China Communications Standards Association is responsible for centralized. This standard was drafted. Ministry of Information Industry Telecommunications Research Institute. The main drafters of this standard. Zhao Wenyu, Zhang Jian, Hu Changjun Li Wei, Tang Rui. This standard was first published in 1993, this is the first revision. Synchronous Digital Hierarchy (SDH) bit rates

1 Scope

This standard specifies the Synchronous Digital Hierarchy (SDH) bit rate levels. This standard applies to private and public telecommunication networks SDH telecommunications system, including a network node interface (NNI), with SDH Optical Interface cable digital line systems, digital microwave systems.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. Frame structure GB/T 15409-2008 synchronous digital hierarchy signals

3 Terms and Definitions

The following terms and definitions apply to this standard. 3.1 SDH is set can be synchronized digital transmission, digital transmission multiplex standardized grading structure and cross-connect for physical Transfer medium transport payload through adaptation. 3.2 Synchronous Transport Module (STM) is a particular information structure, the STM-0, STM-1 basic modules and higher order modules STM-N (N = 16, 64) composition. This standard specifies the STM-0, STM-1 and STM-N relationship, the specific information structure by STM GB/T 15409-2008 requirements. 3.3 Network Node Interface (implements end, multiplexing, cross-connect and switching functions) between. 3.4 It indicates that the network node interface part of the bit stream can be used for telecommunication services. Signaling should be included in the payload.

4 Abbreviations

The following abbreviations apply to this standard. NNI NetworkNodeInterface Network Node Interface Synchronous Digital Hierarchy SDH SynchronousDigitalHierarchy Synchronous Transport Module STM SynchronousTransportModule Synchronous digital hierarchy bit rates of 5 SDH signals by different order Synchronous Transport Module (STM-N) signals, of which N is a positive integer and 0. Than STM-0 signals Special rates are 51840kbit/s, the bit rate of the basic module STM-1 signal is 155520kbit/s, while the high-end module (STM-N) signals ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 14731-2008_English be delivered?

Answer: Upon your order, we will start to translate GB/T 14731-2008_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 2 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 14731-2008_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 14731-2008_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+ countries

Question 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 GB/T 14731-2008?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 14731-2008 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.