GB/T 28029.13-2025Electronic railway equipment - Train communication network (TCN) - Part 4-1: Test methods for train communication networks based on the Wire Train Bus (WTB) (English PDF)
轨道交通电子设备 列车通信网络(TCN) 第4-1部分：基于绞线式列车总线(WTB)的列车通信网络试验方法
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Issued by
State Administration for Market Regulation; Standardization Administration of China
Level / Type
National · Recommended
Issue date
February 28, 2025
Implementation date
September 1, 2025
Scope
GB/T 28029.13-2025 is the English-translated version of 轨道交通电子设备 列车通信网络(TCN) 第4-1部分：基于绞线式列车总线(WTB)的列车通信网络试验方法.
GB/T 28029.13-2025 is the Chinese standard "Electronic railway equipment - Train communication network (TCN) - Part 4-1: Test methods for train communication networks based on the Wire Train Bus (WTB)".
Its scope clause reads: This document specifies the general principles, test categories and items for post-installation tests of train communication networks based on the Wire Train Bus (WTB).
The corresponding test methods are described. This document applies to all TCN network systems implemented according to GB/T 28029.2. Its clauses include terms and definitions.
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Document preview — GB/T 28029.13-2025
National Standard of the People's Republic of China
- ICS
- 45.060
- Classification
- S 70
Issued by: State Administration for Market Regulation; Standardization Administration of China
Contents
- Preface
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 4 Abbreviations
- 5 General Principles
- 6 Test categories and items
- 7 Test methods
1 Scope
This document specifies the general principles, test categories and items for post-installation tests of train communication networks based on the Wire Train Bus (WTB).
The corresponding test methods are described.
This document applies to all TCN network systems implemented according to GB/T 28029.2.
2 Normative references
The contents of the following documents constitute essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB/T 17178.1 Information technology Open systems interconnection conformance test methods and framework Part 1.Basic concepts
GB/T 28029.1-2020 Rail transit electronic equipment Train communication network (TCN) Part 1.Basic structure
GB/T 28029.2-2020 Rail transit electronic equipment Train communication network (TCN) Part 2-1.Twisted wire train bus (WTB)
GB/T 28029.3-2020 Rail transit electronic equipment Train communication network (TCN) Part 2-2.Twisted wire train bus (WTB) Conformance Test
GB/T 34571-2024 Wiring rules for rail transit rolling stock
3 Terms and definitions
The terms and definitions defined in GB/T 17178.1, GB/T 28029.1-2020 and GB/T 28029.2-2020 and the following terms and definitions apply
This document.
3.1 valid frame correctframe
A frame containing the correct WTB preamble, a certain number of "0" and "1" bits, and a termination delimiter.
Note. For WTB preamble, see 4.8.1.3 of GB/T 28029.2-2020; for bit encoding, see 4.8.1.2 of GB/T 28029.2-2020; for WTB frame length, see
The length indicated in the link data length field is consistent with the length indicated in the link data length field. The FCS of the WTB frame refers to the frame check sequence calculation rules in 5.2.1 of GB/T 28029.2-2020.
For the termination delimiter, see 4.8.1.4 of GB/T 28029.2-2020.
3.2 Abnormal frame incorrectframe
WTB frame preamble error, WTB frame end delimiter error, WTB frame length error, WTB frame FCS error, or WTB master-slave error
Frame type mismatch.
Note. The WTB frame preamble code exception means that the WTB preamble code does not meet the requirements of 4.8.1.3 in GB/T 28029.2-2020; the WTB frame termination delimiter is abnormal
The WTB termination delimiter does not meet the requirements of 4.8.1.4 of GB/T 28029.2-2020; the WTB frame length is abnormal because the WTB frame length is different from the length of the link.
The length indicated in the data length field of the WTB frame does not match; the WTB frame FCS error is based on the frame checksum of 5.2.1 in GB/T 28029.2-2020. […]
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 16 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 17178.1Information technology. Open Systems Interconnection. Conformance testing methodology and framework. Part 1: General concepts
- GB/T 28029.1-2020Electronic railway equipment - Train communication network (TCN) - Part 1: General architecture
- GB/T 28029.2-2020Electronic railway equipment - Train communication network (TCN) - Part 2-1: Wire Train Bus (WTB)
- GB/T 28029.3-2020Electronic railway equipment - Train communication network (TCN) - Part 2-2: Wire Train Bus (WTB) conformance testing
- GB/T 34571-2024Railway applications - Rules for installation of cabling on rolling stock
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Related Standards
GB/T 17178.1-1997 — Information technology. Open Systems Interconnection. Conformance testing methodology and framework. Part 1: General concepts
GB/T 28029.1-2020 — Electronic railway equipment - Train communication network (TCN) - Part 1: General architecture
GB/T 28029.2-2020 — Electronic railway equipment - Train communication network (TCN) - Part 2-1: Wire Train Bus (WTB)
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