YD/T 1817-2008 DC Remote Feeding Power System for Telecommunication Equipment

YD/T 1817-2017 Communication equipment DC remote power supply system

GB 4943-2001 Safety of information technology equipment GB 9254-1998 Information technology equipment—Radio disturbance characteristics—Limits and methods of measurement GB/T 9254-2008 Information technology equipment—Radio disturbance characteristics—Limits and methods of measurement GB/T 9254.1-2021 Information technology equipment,multimedia equipment and receivers—Electromagnetic compatibility—Part 1:Emission requirements GB/T 9254.2-2021 Information technology equipment,multimedia equipment and receivers—Electromagnetic compatibility—Part 2:Immunity requirements GB/T 17626.5-2008 Electromagnetic compatibility—Testing and measurement techniques—Surge immunity test GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 2423.1-2001 Environmental testing for electric and electronic products—Part 2:—Test methods Tests A:Cold GB/T 2423.2-2001 Environmental testing for electric and electronic products—Part 2:Test methods-Tests B:Dry heat GB/T 2828.1-2003 Sampling procedures for inspection by attributes—Part 1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection GB/T 2829-2002 Sampling procedures and tables for periodic inspection by attributes (Apply to inspection of process stability) GB/T 3873-1983 General specifications for products packaging of communication equipments YD/T 122-1997 YD/T 637-2006 DC-DC Conversion Equiopment for Telecommunication YD/T 950-2008 The requirements and testing methods for overvoltage and overcurrent resistance of communication equipment within the telecommunications center

IEC 60950-21-2002