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GB/T 15941-2008 English PDF

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GB/T 15941-2008: Requirements for Synchronous Digital hierarchy (SDH) Optical Fiber Cable Line Systems
Status: Valid

GB/T 15941: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 15941-2008English1079 Add to Cart 7 days [Need to translate] Requirements for Synchronous Digital hierarchy (SDH) Optical Fiber Cable Line Systems Valid GB/T 15941-2008
GB/T 15941-1995EnglishRFQ ASK 9 days [Need to translate] Requirements for synchronous digital hierarchy (SDH) optical fiber cable line systems of national public telecommunication network Obsolete GB/T 15941-1995

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Basic data

Standard ID GB/T 15941-2008 (GB/T15941-2008)
Description (Translated English) Requirements for Synchronous Digital hierarchy (SDH) Optical Fiber Cable Line Systems
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard M33
Classification of International Standard 33.040.40
Word Count Estimation 49,485
Date of Issue 2008-04-10
Date of Implementation 2008-11-01
Older Standard (superseded by this standard) GB/T 15941-1995
Quoted Standard GB/T 7611-2001; GB/T 20185-2006; YD/T 900-1997; YD/T 1017-1999; YD/T 1078-2000; YD/T 1238-2002; YD/T 1267-2003; YD/T 1289.2-2003; YD/T 1299-2004; YD/T 1300-2004; YD/T 1420-2004; YD/T 5095-2000; YDN 027-1997; YDN 099-1998; ITU-T G.691-2003; ITU-T G.693-2003; ITU-T G.703-2001; ITU-T G.707-2003; ITU-T G.783-2000; ITU-T G.806-2000; ITU-T G.826-2000; ITU-T G.828-2000; ITU-T G.829-2002; ITU-T G.831-2000; ITU-T G.841-1998; ITU-T G.957-1999; ITU-T M.2101-2000; ITU-T M.2101.1-1997; ITU-T M.3010-2000; ITU-T Q.181-2002; ITU-T Q.811-2004; ITU-T Q.812-2004
Adopted Standard ITU-T G.707, NEQ; ITU-T G.957, NEQ; ITU-T G.691, NEQ; ITU-T G.693, NEQ
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 line rate of 155520 kbit/s, 622080kbit/s, 2488320kbit/s and 9953280kbit/s optical line systems for SDH network access requirements. This standard applies to public telecommunication network SDH optical cable system. Dedicated telecommunications network can also refer to the use. After the release of the standard network equipment shall meet the requirements of this standard.

GB/T 15941-2008: Requirements for Synchronous Digital hierarchy (SDH) Optical Fiber Cable Line Systems


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Requirements for Synchronous Digital hierarchy (SDH) Optical Fiber Cable Line Systems ICS 33.040.40 M33 National Standards of People's Republic of China Replacing GB/T 15941-1995 Synchronous Digital Hierarchy (SDH) optical fiber cable line systems Telecommunication network Posted 2008-04-10 2008-11-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Introduction Ⅴ 1 Scope 1 2 Normative references 1 3 Terms, definitions and abbreviations 2 3.1 Terminology 2 3.2 Acronyms 3 4 bit rate and frame structure 5 4.1 Bit Rate 5 4.2 Structure 5 5 multiplex structure 16 5.1 Basic multiplexing structure 16 5.2 multiplexing method 16 6 mapping method 17 6.1 PDH tributary signals are mapped into the VC-n 17 6.2 ATM signals are mapped into the VC-n 17 Method 6.3 Ethernet signals are mapped into VC-n or VC-n-Xv 17 7 System components and device type 17 7.1 System components 17 7.2 Device Type 17 8 Optical Interface Specification 17 8.1 Optical interface standardization purposes 17 17 8.2 Classification of optical interfaces 8.3 Optical interface parameters 18 9 Power Interface Specification 22 9.1 PDH tributary of the electrical interface parameters 22 9.2 155520kbit/s electrical interface parameters 22 10 synchronous timing requirements 24 Timing regenerator of claim 24 10.1 10.2 SDH equipment clock timing performance requirements 24 11 protection switching in claim 24 11.1 linear MSP protection switching in claim 24 11.2 multiplex section shared protection ring protection switching in claim 26 11.3 path protection ring switching request 27 11.4 linear channel protection switching requirements 28 11.5 SDH subnetwork connection protection (SNCP) protection switching of claim 28 11.6 SDH interworking between network protection structure 29 12 transmission performance requirements 29 12.1 Error performance 29 12.2 jitter and wander performance 31 13 availability requirements 31 13.1 definition of availability 31 Availability goals 13.2 32 Unavailable time allocated 13.3 32 14 NMS 32 14.1 system technical requirements 32 14.2 subnet management system functional requirements 32 14.3 Element Management System functional requirements 32 14.4 local maintenance terminal 32 14.5 operations, administration and maintenance interface 32 15 auxiliary systems and environmental conditions 32 Contact Corporate Communications 32 15.1 15.2 User Interface 33 15.3 33 room environment conditions 15.4 supply conditions 33 Appendix A (Informative Appendix) SDH maintenance and engineering error reference index 34 A. 1 international channel and multiplex section 34 maintenance indicators A. Channel Indicators 34 1.1 Maintenance A. 1.2 MSP maintenance indicators 34 A. 2 Current Channel Error Indicators domestic SDH engineering 35 A. 2.1 SDH network throughout the end 27000km hypothetical error performance reference channel 35 A. Long-term indicators 2.2 digital channel 35 A. Short-term indicators 2.3 digital channel 35 A. 3 to ITU-TG. Channel Error Indicators 828 domestic SDH-based engineering design 36 A. 3.1 SDH network throughout the end 27000km hypothetical error performance reference channel 36 A. Long-term indicators 3.2 digital channel 36 A. Short-term indicators 3.3 digital channel 36 A. Digital error indicators paragraph 4 domestic SDH engineering 37 A. Long-term Target 4.1 digital section 37 A. 4.2 Digital current short-term indicators section 37 A. 5 to ITU-TG. 829 and M. 2101-based engineering design domestic SDH multiplex section error indicators 37 A. Long-term Target 5.1 MSP 37 A. 5.2 Multiplexing section 38 of the short-term indicators Error performance Annex B (informative) regenerator section 39 B. 1 stage regeneration BER performance and light-noise ratio 39 B. 2 regenerator section error indicators 39 B. 3 stage regeneration error indicators for occasions 39 Annex C (informative) receiver sensitivity deterioration amount and explain more than 40 degrees C. 1 Overview 40 C. 2 receiver sensitivity deterioration amount (Y) 40 C. 3 receiver sensitivity margin (X) 40 C. 4 illustrates on EOLa, EOLITU, BOL, X and Y 40 Figure 1 China's domestic standards longest HRP 2 Figure 2 SDH digital section and multiplex section 2 Figure 3 STM-N frame structure 5 Figure 4 STM-1 Section Overhead 6 Figure 5 STM-4 section overhead 6 Figure 6 STM-16 overhead paragraph 7 Figure 7 STM-64 overhead paragraph 7 Figure 8 STM-256 section overhead 8 Figure 9 K4 multiframe structure (b1) of 15 bits Figure 10 Basic multiplexing structure 16 11 System components 17 12 position optical interface (optical amplifiers) 18 13 optical interface position (no light amplifier) \u200b\u200b18 Figure 14 STM-1/STM-4/STM-16/64 optical transmission signal eye mask 19 Figure 15 CMI code binary "0" pulse mask 22 Figure 16 CMI code binary "1" pulse template 23 Figure 17 STM-1 interface points eye mask 23 Figure C. 1 About EOLa, EOLITU, BOL, X and Y illustrate 41 Table 1 SDH bit rates 5 Table 2 J0 16-byte frame format 8 Table 3 S1 byte b5 ~ b8 10 bits defined Table 4 Simplified SOH functional interface 10 Table 5 C2 byte code mapped 12 The main drafters of this standard. Wei Leping, Deng Zhongli, Li Ying Hao, Zhang Haiyi, Fang, Hu Changjun, Zhang Guoying. This standard was first released in 1995, this is the first revision. Synchronous Digital Hierarchy (SDH) optical fiber cable line systems Telecommunication network

1 Scope

This standard specifies the line rate 155520kbit/s, 622080kbit/s, 2488320kbit/s and 9953280kbit/s of Telecommunication network SDH optical fiber cable line systems. This standard applies to public telecommunication networks SDH optical fiber cable line systems. Dedicated telecommunications network can also refer to use. After the publication of this standard into Network equipment should meet the requirements of this standard.

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 7611-2001 bit rate for digital network electrical interface characteristics GB/T 20185-2006 Optical interface requirements for synchronous digital hierarchy equipment and systems YD/T 900-1997 SDH clock clock technical requirements --- YD/T 1017-1999 synchronous digital hierarchy (SDH) network node interface YD/T 1078-2000 SDH transmission network technical requirements --- interworking between network protection structure YD/T 1238-2002 based on SDH multi-service transport nodes technical requirements YD/T 1267-2003 based on SDH transmission network synchronization network technical requirements YD/T 1289.2-2003 Synchronous Digital Hierarchy (SDH) transmission network management Technical Requirements Part II. Element Management System (EMS) Function YD/T 1299-2004 synchronous digital hierarchy (SDH) network performance technical requirements --- jitter and wander YD/T 1300-2004 synchronous digital hierarchy (SDH) network performance technical requirements --- channel multiplex and regenerator sections error YD/T 1420-2005 based on 2048kbit/s series of digital network jitter and wander technical requirements YD/T 5095-2000 Synchronous Digital Hierarchy (SDH) long-distance optical transmission engineering specifications YDN027-1997 SDH transmission network technical requirements --- ring network YDN099-1998 synchronous optical transport network technology system ITU-TG. 691.2003 single channel STM-64, STM-256 and other SDH optical interface with an optical amplifier system ITU-TG. 693.2003 Office system within the optical interface ITU-TG. Physical/electrical characteristics of 2001 Series Digital Interface. 703 ITU-TG. 707.2003 Synchronous Digital Hierarchy (SDH) network node interface ITU-TG. 783.2000 SDH equipment functional blocks ITU-TG. 806.2000 transport device characteristics and common function description method --- ITU-TG. 826.2000 primary group or primary rate above international constant bit-rate digital channel error performance parameters and objectives ITU-TG. 828.2000 error performance parameters and objectives for international constant bit-rate digital paths ITU-TG. 829.2002 SDH multiplex section and regenerator section error performance events ITU-TG. 831.2000 Synchronous Digital Hierarchy (SDH) transport network management capability ITU-TG. 841.1998 SDH network type and characteristics of the protective structure ITU-TG. 957.1999 Synchronous Digital Hierarchy (SDH) optical interface equipment and systems ITU-TM. 2101.2000 international multi-operator environment SDH digital paths and multiplex section into service and maintenance performance limits

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