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YD/T 1272.3-2015Optical fiber connector - Part 3: Type SC (English PDF)

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Issued by

Ministry of Industry Information Technology, the People’s Republic of China

Level / Type

National · Recommended

Issue date

December 14, 2006

Implementation date

December 14, 2006

Scope

YD/T 1272.3-2015 (Optical fiber connector - Part 3: Type SC) is available as an English-translated PDF.

YD/T 1272.3-2015 — This Standard regulates the technical requirements and test methods of charger and interface of the mobile communication terminal (hereafter called as the "terminal"), including the physical feature, electric feature, security feature, magnetic compatibility and environment adaptability of the AC charger and interface.

This Standard is applicable to the interface of the terminal charger, AC charger and connection cable.

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Document preview — YD/T 1272.3-2015

National Standard of the People's Republic of China

Issued by: Ministry of Industry Information Technology, the People’s Republic of China

Contents

  • Foreword...3
  • Introduction...5
  • 1 Scope...6
  • 2 Reference documents...6
  • 3 Definitions and abbreviations...7
  • 4 Technical requirement...9
  • 5 Test method...23
  • References...39

Foreword

This Standard is prepared referring to the following standards.

1 GB 4943-2001 Security of Information Technical Equipment

2 YD 1268.2-2003 Security Requirement and Test Method of Lithium Battery Charger

for the Mobile Communication Terminal

3 GB 9254 Wireless Interference Limit and Measure Method of Information Technical

Equipment

4 GB 17465.1 Housing and Similar Appliance Coupler Part I. Universal Requirement

5 GB 17625.1 Magnetic Compatibility Limit Emission Limit for Harmonic Current

6 GB 17625.2 Magnetic Compatibility Limit Limit for the Voltage Fluctuation

Generated by the Equipment with the Rated Current Less than 16A in the Low-Voltage

Supply System.

When the charger simultaneously works with the mobile communication terminal, its

magnetic compatibility feature shall respectively meet the magnetic compatibility requirement

of the mobile communication terminal in different modes. Meanwhile, during the preparing

process of this Standard, it also refers to the electric feature and mechanical structure of

"universal serial bus specification (version 2.0)" interface.

With the development of the technology, the related standards will be continually

prepared. After this Standard is issued, we will conduct researches on the technical

requirement and test methods of the equipment such as on-board DC charger and plan to

supplement the corresponding parts as the supplementary documents of this Standard if

necessary.

This Standard is proposed and managed by China Communication Standardization

association.

This Standard is Drafted by. Telecom Research Institute of Ministry of Information and

Industry, and Konka Group Co., Ltd.

Key drafters of this Standard. Liu Jun, Men Meng, Yuan Weijun, Yuan, Zhang Xia, He

Guili, Li Hongtao, and Du Yong.

Introduction

This Standard is prepared to guarantee the security of the product and availability,

meanwhile, it enables the mobile communication terminals with different types to use the

charger having the same specification to reduce the electronic waste, protect the environment,

save resource and reduce the use cost of the mobile communication terminal through the

uniform interface mode and technical requirement.

Considering the requirement for the data exchange between the mobile communication

terminal and peripheral equipment and sharing possibility of the charging cable, this Standard

refers to the A series interface specification of the Universal Serial Bus (USB) to improve the

application efficiency and convenience of the related components.

Considering the individual development of the mobile communication terminal, this

Standard regulates the uniform connection interface and sets it on the charger side, and the

connection interface on the mobile communication terminal side is identified by the design

and manufacturer of the products.

Technical Requirement and Test Method of Charger and Interface

for Mobile Telecommunication Terminal Equipment

1 Scope

This Standard regulates the technical requirements and test methods of charger and

interface of the mobile communication terminal (hereafter called as the "terminal"), including

the physical feature, electric feature, security feature, magnetic compatibility and environment

adaptability of the AC charger and interface.

This Standard is applicable to the interface of the terminal charger, AC charger and

connection cable.

2 Reference documents

The articles in the following documents become the articles of this Standard through the

reference of this reference. For any reference document with the date, its subsequent modified

contents (not including corrected content) or revisal versions are not applicable to this

Standard, however, it is encouraged that all parties reaching this agreement on this Standard

study whether the latest versions of these documents can be used. For any reference files

without the date, its latest version is not applicable to this Standard.

GB 2099.1-1996 Housing and Similar Plug and Socket Part I. Universal Requirement

GB 4943-2001 Security of Information Technical Equipment

GB 5023.5-1997 Insulation Cable Polythene below the Rated Voltage 450/750V Part V.

Software Cable (chord)

GB9254 Wireless Interference Limit and Measure Method of the Information

Technology Equipment

GB 17465.1-1998 Housing and Similar Appliance Coupler Part I Universal Requirement

GB 17625.1 Magnetic compatibility Limit Emission Limit for Harmonic Wave

Current

exceed 35N and the required force for pulling the plug from the socket can not be less than

10N.

4.2.2.2 Plug lifetime

Plug in/plug out for 15000 periods at the maximum speed during the 200 periods of one

hour, after the plugging ends, the mechanical structure shall not be damaged. The required

minimum force for pulling the connection plug out from the socket is not less than 8N, the

electric performance shall meet the requirement in the 4.2.3.

4.2.3 Electric performance of the connection interface
4.2.3.1 Electric performance requirement of the connection interface on the terminal

side

(1) The DC input voltage of the terminal charging interface is 5V(1±5%). maximum

absorption current is 1800mA. Regardless of the input power of the charger, the charging

control circuit on the terminal side shall be securely charged according to self requirement

and the phenomena such as the over heating, combustion, explosion and other circuit damage

shall not occur.

(2) The charging control circuit on the terminal side shall include the voltage limit

protection set. when the charging interface of the terminal is imported by over 6V voltage, if

the secure charging can not be guaranteed, the charging control circuit on the terminal side

shall securely charge according to self requirement, the phenomena such as the over heating,

combustion, explosion and other circuit damage shall not occur.

(3) When the connecting power supply set is not standard regulated charger (such as the

built-in USB A series interface of the computer or portable computer).

(4) Considering that absorption current's security to the power supply set when the

terminal is charging which has been produced and sold before this Standard is implemented,

the designer shall carefully consider whether the sold terminals meet the secure charging

measure regulated in this Standard, when this Standard is adopted, the physical design of the

interface between the terminal and connection cable different from old design shall be used,

4.4.13.2 Magnetic compatibility requirement for the charger
4.4.13.2.1 Continued emission interference

The emission interference of the charger shell port shall meet the requirement of the class

B information technical equipment in GB 9254.

4.4.13.2.2 Continued conduction interference

The conduction interference of the AC power input port of the charger shall meet the

requirement of the class B information technical equipment in GB 9254.

4.4.13.2.3 Harmonic wave current

The harmonic wave current of AC power input port of the AC charger shall meet the

limit requirement for class A equipment in GB 17625.1.

4.4.13.2.4 Voltage fluctuation and flickering

The voltage fluctuation and flickering of the AC power input port of the AC charger

shall meet the requirement of GB 17625.2.

4.4.413.2.5 Interference-resistance of the static discharging

The shell port of the AC charger shall pass the static discharging anti-interference test

under the test grade regulated in 5.4.13.2.5.During the test period and after test, the charger

shall be able to normally operate.

4.4.13.2.6 Anti-interference of current fast instantaneous pulse cluster

The shell port of the AC charger shall pass the anti-interference test of current fast

instantaneous pulse cluster under the test grade regulated in 5.4.13.2.6.During the test, the

charger shall keep normal operation, and the level of current fast instantaneous pulse cluster

leaked at the output port of the charger DC power shall be less than the 10% of the test level

of AC input port. After test, the charger shall be able to normally operate.

5.2.3.2 Interface test of the charger

(1) Check whether the anode and cathode of the interface on the charger side is correct,

check whether D+ and D- is short circuit and test whether the D+ or D- and VBus line,

ground line and other charger circuits are insulated.

(2) Check whether the related normal v...

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 39 pages — is available in the English PDF.

Referenced standards

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