GB/T 15837-2008 English PDF

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GB/T 15837-2008: Interface requirements for digital synchronization network
Status: Valid

GB/T 15837: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 15837-2008	719	Add to Cart	6 days	Interface requirements for digital synchronization network	Valid
GB/T 15837-1995	519	Add to Cart	4 days	Synchronization interface requirements for digital network	Obsolete

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Basic data

Standard ID: GB/T 15837-2008 (GB/T15837-2008)
Description (Translated English): Interface requirements for digital synchronization network
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: M19
Classification of International Standard: 33.040.20
Word Count Estimation: 31,394
Date of Issue: 2008-10-29
Date of Implementation: 2009-05-01
Older Standard (superseded by this standard): GB/T 15837-1995
Quoted Standard: GB/T 15941-2008; ITU-T G.703-2001; ITU-T G.803-2000; ITU-T G.811-1997; ITU-T G.812-1998; ITU-T G.813-2003
Adopted Standard: ITU-T G.703, NEQ; ITU-T G.704, NEQ; ITU-T G.707, NEQ; ITU-T G.823, NEQ; ITU-T G.825, NEQ; ITU-T G. 957, NEQ
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 various synchronization in digital synchronous network interface physical/electrical (optical) feature requirements, carrying SSM information requirements and the network performance requirements, which the network performance requirements including synchronous network interface output limit requirements and network synchronization interface input tolerance requirements. This standard applies to digital synchronization network.

GB/T 15837-2008: Interface requirements for digital synchronization network

---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.
Interface requirements for digital synchronization network ICS 33.040.20 M19 National Standards of People's Republic of China Replacing GB/T 15837-1995 Digital synchronous network interface requirements Posted 2008-10-29 2009-05-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Preface Ⅰ 1 Scope 1 2 Normative references 1 3 Terms and definitions 4 Abbreviations 2 5 digital synchronous network interface Physical Interface Description 3 6 Digital Synchronous Network Interface Category 3 Physical/electrical 7 digital synchronous network interface (optical) feature requires 4 7.1 impedance requirement 4 7.2 Waveform Requirements 5 8 digital synchronous network interface SSM information load requirements 8 8.1 SSM quality level defined 8 8.2 2048kbit/s bearer SSM information requirements 8 8.3 STM-N bearer SSM information requirements 9 9 synchronization interface network limit of 9 9.1 synchronous interface output jitter network limits 9 9.2 Interface output synchronized wander network limits 10 --- GB/T 15837-1995. Digital synchronous network interface requirements

1 Scope

This standard specifies the various synchronization in digital synchronous network interface physical/electrical (light) performance requirements, information requirements and the network carrying SSM Network performance, wherein the network performance requirements including network synchronization interface output limit requirements and network synchronization interface input tolerance requirements. This standard applies to digital synchronous network.

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. GB/T 15941-2008 synchronous digital hierarchy (SDH) optical fiber cable line into the network system requirements ITU-TG. Physical/electrical characteristics of 2001 series digital interface. 703 ITU-TG. 803.2000 based on the structure of SDH transport network ITU-TG. 811.1997 reference clock timing characteristics ITU-TG. 812.1998 applies to the synchronization network node clock from the timing requirements ITU-TG. 2003 SDH timing requirements of the device from the bell. 813

3 Terms and Definitions

The following terms and definitions apply to this standard. 3.1 A common physical network interface is an interface of two related systems, subsystems, or means, or a common logical interface. At the interface must be kept There is a complete match and mutual adaptation between entities on both sides of the interface card, so that each system, subsystem or device runs on functional entity in terms It is a comprehensive and mutually compatible. 3.2 Synchronous interface is a synchronous interface, the output signal frequency can be traced back to a normal PRC. Interface network synchronization drift limits using the most Big Time Interval Error (MTIE) and Time Deviation (TDEV) parameters to specify. 3.3 Cumulative their ideal positions effective instantaneous digital signal within a specified period of time, measured deviation. 3.4 The maximum time interval error is the maximum phase change within a measurement cycle, a given window. As shown in Figure 1. ......

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