GB/T 42756.2-2023Cards and security devices for personal identification - Contactless proximity objects - Part 2: Radio frequency power and signal interface (English PDF)
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Issued by
State Administration for Market Regulation, China National Standardization Administration
Level / Type
National · Recommended
Issue date
May 23, 2023
Implementation date
December 1, 2023
Scope
GB/T 42756.2-2023 (Cards and security devices for personal identification - Contactless proximity objects - Part 2: Radio frequency power and signal interface) is available as an English-translated PDF.
GB/T 42756.2-2023 is the Chinese standard "Cards and security devices for personal identification - Contactless proximity objects - Part 2: Radio frequency power and signal interface".
Its scope clause reads: This document specifies the field for providing energy and two-way communication between a proximity coupling device (PCD) and a proximity card or object (PICC): characteristics: This document does not specify methods for generating coupling fields, nor does it specify methods for complying with regulations on electromagnetic radiation and human exposure: This document is applicable to the design, production, application and testing of proximity cards and equipment:. Its clauses include terms and definitions.
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Document preview — GB/T 42756.2-2023
National Standard of the People's Republic of China
- ICS
- 35.240.15
- Classification
- L 70
Issued by: State Administration for Market Regulation, China National Standardization Administration
Contents
- Preface
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 4 Symbols and abbreviations
- 5 General requirements
- 6 Energy transfer
- 7 Signal interface
- 8 TypeA communication signal interface
- 9 TypeB communication signal interface
- 10 Electromagnetic Interference Level
- Appendix A (Informative) Complex Envelope and Constellation
- Appendix B (Informative) Intersymbol Interference
1 Scope
This document specifies the field for providing energy and two-way communication between a proximity coupling device (PCD) and a proximity card or object (PICC):
characteristics: This document does not specify methods for generating coupling fields, nor does it specify methods for complying with regulations on electromagnetic radiation and human exposure:
This document is applicable to the design, production, application and testing of proximity cards and equipment:
2 Normative references
The contents of the following documents constitute the essential provisions of this document through normative references in the text: Among them, dated references
For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document:
GB/T 42756:1-2023 Cards and identification security equipment Contactless proximity objects Part 1: Physical characteristics (ISO /IEC 14443-1:2018, MOD)
GB/T 42756:3-2023 Cards and identification security devices Contactless proximity objects Part 3: Initialization and anti-collision (SO/IEC 14443-3:2018, IDT)
ISO /IEC 10373-6 Test methods for cards and identification security devices - Part 6: Contactless proximity objects (Cardsand
ISO /IEC 14443-4 Cards and identification security devices Contactless proximity objects Part 4: Transmission protocol (Cardsand tocol)
Note: GB/T 42756:4-2023 Cards and identification security equipment Contactless proximity objects Part 4: Transmission protocol (ISO /IEC 14443-4:
2018, IDT)
3 Terms and Definitions
The following terms and definitions apply to this document:
3:1 bit duration bitduration
Defines the duration of the logic level, at the end of which a new bit starts:
3:2
A phase shift of 180° results in phase shift keying of two possible phase states:
3:3
Modified Miller coding modifiedMiler
A method of bit encoding in which the logic level within the bit duration (3:1) is represented by the position of the pulse within the bit frame:
GB/T 42406 | GB/T 42408 | GB/T 42442.1 | GB/T 42752 | GB/T 42756.4 | GB/T 42756.3 | […]
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 82 pages — is available in the English PDF.
Referenced standards
Normative references
GB/T 42756 · IEC 14443 · IEC 10373
Cited by
- GB/T 45498.1-2025Specifications for the social security card one-card-pass of the People's Republic of China — Part 1: Basic specifications
- GB/T 45498.4-2025Specifications for the social security card one-card-pass of the People's Republic of China — Part 4: Terminal specifications
- GB/T 42756.1-2023Cards and security devices for personal identification - Contactless proximity objects - Part 1: Physical characteristics
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Related Standards
GB/T 42756.1-2023 — Cards and security devices for personal identification - Contactless proximity objects - Part 1: Physical characteristics
GB/T 42756.3-2023 — Cards and security devices for personal identification - Contactless proximity objects - Part 3: Initialization and anticollision
GB/T 42756.4-2023 — Cards and security devices for personal identification - Contactless proximity objects - Part 4: Transmission protocol
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GB/T 42756.2-2023
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