GB/T 44644.1-2024 PDF English
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GB/T 44644.1-2024: Road vehicles - 50 �� impedance radio frequency connection system interface - Part 1: Dimensions and electrical requirement
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GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.040.10
CCS T 36
GB/T 44644.1-2024 / ISO 20860-1:2008
Road Vehicles - 50 Impedance Radio Frequency
Connection System Interface - Part 1: Dimensions and
Electrical Requirements
(ISO 20860-1:2008, IDT)
ISSUED ON: SEPTEMBER 29, 2024
IMPLEMENTED ON: APRIL 1, 2025
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword ... 3
Introduction ... 5
1 Scope ... 6
2 Normative References ... 6
3 Terms and Definitions ... 6
4 Dimensions and Coding ... 7
4.1 General ... 7
4.2 Male Connector ... 7
4.3 Female Connector ... 10
4.4 Error-proofing Structures ... 11
4.5 Mechanical Structure Coding and Color Coding of Connection Systems ... 11
4.6 Multiple Interfaces ... 13
5 Naming ... 14
6 Characteristic Parameters ... 15
7 Test Procedures ... 16
Appendix NA (informative) Mechanical Structure Coding and Color Coding of Non-
error-proofing 50 Connection Systems ... 18
Bibliography ... 20
Foreword
This document was drafted in accordance with the rules provided in GB/T 1.1-2020 Directives
for Standardization - Part 1: Rules for the Structure and Drafting of Standardizing Documents.
This document is Part 1 of GB/T 44644 Road Vehicles - 50 Impedance Radio Frequency
Connection System Interface. GB/T 44644 has issued the following parts:
---Part 1: Dimensions and Electrical Requirements;
---Part 2: Test Procedures.
This document identically adopts ISO 20860-1:2008 Road Vehicles - 50 Impedance Radio
Frequency Connection System Interface - Part 1: Dimensions and Electrical Requirements.
This document makes the following minimal editorial modifications:
a) Due to errata, the error-proofing structural combination relation “b2-c” of the
connection system interface with the mechanical structure code “I” is modified into
“b2-d” (see Table 1);
b) Due to errata, the description of Y in the “Insertion Loss” and “Shielding
Effectiveness” property illustrations is modified (see Table 2);
c) As the original text lacks the mechanical coding and color coding of the non-error-
proofing 50 Ω connection system, in order to meet the actual application demands,
the mechanical structure coding and color coding of the non-error-proofing 50 Ω
connection system interface are added (see Appendix NA).
Please be noted that certain content of this document may involve patents. The institution
issuing this document does not undertake the responsibility of identifying these patents.
This document was proposed by Ministry of Industry and Information Technology of the
People’s Republic of China.
This document shall be under the jurisdiction of National Technical Committee of Auto
Standardization (SAC/TC 114).
The drafting organizations of this document: Technical Center of SAIC Motor Group Co., Ltd.;
Changsha Automotive Electrical Testing Center Co., Ltd.; Pan Asia Technical Automotive
Center Co., Ltd.; Dongfeng Motor Group Co., Ltd.; Dongguan LJV Industry Investments Co.,
Ltd.; Electric Connector Technology Co., Ltd.; Henan Tianhai Auto Electronics Group Co., Ltd.;
Jinan Youfeng Electronics Co., Ltd.; Luxshare Automotive Technology (Shanghai) Co., Ltd.;
Jiangsu AGLAD Intelligent Technology Co., Ltd.
Road Vehicles - 50 Impedance Radio Frequency
Connection System Interface - Part 1: Dimensions and
Electrical Requirements
1 Scope
This document specifies the requirements for the dimensions and electrical characteristics of
male and female connectors of the 50 impedance radio frequency connection system interface
of road vehicles.
This document is applicable to all relevant devices and cables for use on road vehicles with 50
impedance radio frequency connection system interfaces.
2 Normative References
The contents of the following documents constitute indispensable clauses of this document
through the normative references in the text. In terms of references with a specified date, only
versions with a specified date are applicable to this document. In terms of references without a
specified date, the latest version (including all the modifications) is applicable to this document.
ISO 20860-2 Road Vehicles - 50 Impedance Radio Frequency Connection System Interface
- Part 2: Test Procedures
NOTE: GB/T 44644.2-2024 Road Vehicles - 50 Impedance Radio Frequency Connection System
Interface - Part 2: Test Procedures (ISO 20860-2:2009, IDT)
3 Terms and Definitions
The following terms and definitions are applicable to this document.
3.1 male contact
pin contact
A contact that is inserted into the female contact (sheath) and electrically engaged through its
outer surface.
3.2 female contact
socket contact
A contact that is inserted into the male contact (contact pin) and electrically engaged through
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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