GB/T 16712: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 16712-2008 | English | RFQ |
ASK
|
3 days [Need to translate]
|
Characteristics of synchronous digital hierarchy (SDH) equipment functional blocks
| Valid |
GB/T 16712-2008
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| GB/T 16712-1996 | English | RFQ |
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|
9 days [Need to translate]
|
Specifications for Synchronous Digital Hierarchy (SDH) multiplex equipment
| Obsolete |
GB/T 16712-1996
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PDF similar to GB/T 16712-2008
Basic data | Standard ID | GB/T 16712-2008 (GB/T16712-2008) | | Description (Translated English) | Characteristics of synchronous digital hierarchy (SDH) equipment functional blocks | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | M33 | | Classification of International Standard | 33.040.20 | | Word Count Estimation | 219,252 | | Date of Issue | 2008-10-07 | | Date of Implementation | 2009-04-01 | | Older Standard (superseded by this standard) | GB/T 16712-1996 | | Adopted Standard | ITU-T G.783-2006, NEQ | | Regulation (derived from) | Announcement of Newly Approved National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 synchronous digital hierarchy (SDH) equipment functional blocks. Synchronous Digital Hierarchy (SDH) equipment functional blocks shown in Figure 1 the total. In this standard functional definition applies to SDH- user network interface (UNI) and Network Node Interface (NNI). This standard applies to transmission network system equipment, as defined in this standard are not all of the blocks are necessary for each application. You can choose the standard function blocks different subsets, according to the standard rules given in combination, in different ways to provide different combinations of device functions. Network operators and equipment manufacturers can choose to implement some applications to choose which features required. This standard applies to the use of public telecommunication SDH systems, dedicated telecommunications network may also refer to the use of similar systems. | GB/T 16712-2008: Characteristics of synchronous digital hierarchy (SDH) equipment functional blocks
---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.
Characteristics of synchronous digital hierarchy (SDH) equipment functional blocks
ICS 33.040.20
M33
National Standards of People's Republic of China
Replacing GB/T 16712-1996
Synchronous Digital Hierarchy (SDH) equipment functional blocks
(ITU-TG.783.2006, NEQ)
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
Table of Contents
Preface Ⅰ
1 Scope 1
2 Normative references 1
3 Terms and definitions
4 Abbreviations 10
Description 17 5 Conventions
Monitoring 17 6
7 through XXX_MP reference point of information flow (XXX_MI) 19
8 general-purpose processing 19
9 STM-N physical segment layer (N = 1,4,16,64,256) 23
10 STM-N regenerator section layer (N = 1,4,16,64,256) 33
11 STM-N multiplex section layer (N = 1,4,16,64,256) 48
12 VC-n channels (Sn) layer (n = 4-X, 4,3-X, 3) 82
13 VC-m channel (Sm) layer (m = 12) 148
14 timer 194
15 195 jitter and wander specifications
16 overhead access function (OHA) 205
Appendix A (normative appendix) F1 byte usage examples 206
Appendix B (normative) data communication path (DCC) 207
Appendix C (Normative Appendix) STM-16 regenerator functional model 208
Annex D (normative appendix) STM-N transparent regenerator 209
Appendix E (Normative Appendix) SDH equipment CID defense degree of verification 210
Annex F (normative) enhanced remote defect indication operation 212
Annex G (normative appendix) STM-64 regenerator jitter accumulation analysis and hypothetical reference model (HRM) 213
Foreword
This standard corresponds to ITU-TG. 783.2006 "feature equipment functional blocks Synchronous Digital Hierarchy (SDH)". This standard ITU-T
G. 783.2006 non-equivalent degree of consistency, the main differences are as follows.
--- Rearrange the ITU-TG. 783 related content. Taking into account this standard is to describe the function of multiplexing equipment, omitted
ITU-TG. 783 relating to the pointer detection algorithm in Appendix I.
--- In view of SDH multiplexing structure of the AU-4 path and provided only 2M, 34M and 140M three kinds tributary interface, this standard
No selection of the route and tributary interface independent containers, empty containers.
This standard replaces GB/T 16712-1996 "Synchronous Digital Hierarchy (SDH) multiplex equipment."
This standard and GB/T 16712-1996 compared to the main changes are as follows.
--- Modify the standard name is "synchronous digital hierarchy (SDH) equipment functional blocks";
--- Increasing the ITU-TG. 783 corresponding MSP protocol, command and switching operations.
The Standard Appendix A, Appendix B, Appendix C, Appendix D, Appendix E, Appendix F and Appendix G are normative appendix.
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.
This standard was drafted. Wuhan Research Institute of Posts and Telecommunications.
Drafters of this standard. HE Yan, Lü new, Zhang Jijun, Yanyan Fen, Liu Hongjie, Wang Junfang, Li Tao, still strong, Meng Xiang, Zhang Yan.
This standard replaces the standards previously issued as follows.
--- GB/T 16712-1996.
Synchronous Digital Hierarchy (SDH) equipment functional blocks
1 Scope
At the source, the normal traffic signal is connected to the working and protection transport entities two permanent bridge. In sink, select from the two transport entities representing
Good a normal traffic signal.
Since the permanent bridge, the 1 + 1 architecture is not allowed to provide an unprotected extra traffic signal.
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