The International Organization for Standardization (ISO) / International Electrotechnical Commission (IEC) Technical Report, 29125:2010, targets the support of applications that provide remote power over balanced cabling to terminal equipment; covers the transmission and electrical parameters needed to support remote power over balanced cabling; covers various installation … [Read more...]
Standards
TIA 603: Land Mobile FM or PM – Communications Equipment – Measurement and Performance Standards
This standard provides definition, methods of measurement and performance standards for radio equipment used in the Private (Dispatch) Land Mobile Services that employ FM or PM modulation, for transmission of voice or data using analog or digital techniques, with a frequency of 1 GHz or less. This standard may be applicable to services other than those listed above. Use of this … [Read more...]
The Use of Surge Protection Devices in IEEE 802.3at (PoE+) Applications
The ratification of IEEE Standard 802.3at, also known as Power over Ethernet+ (PoE+), increases the power available to Ethernet ports. Outdoor applications, especially in open-air, unshielded environments, need to be protected from surge events using a surge protective device (SPD). Outdoor environments increase the devices' susceptibility to electromagnetic interference (EMI). … [Read more...]
Acceptance of Manufacturer's Testing Laboratories
The IECEE offers a listing of acceptance of use of various types of manufacturer’s testing laboratory procedures as provided to the IECEE Secretariat by the National Certification Bodies (NCBs) on: SMT (Supervised Manufacturer's Testing) TMP (Testing at Manufacturer’s Premises) WMT (Witnessed Manufacturer’s Testing) RMT (Recognized Manufacturer’s Testing) See the list … [Read more...]
MIL-HDBK-235 Revision Approved
The revision of MIL-HDBK-235B has been approved and is currently awaiting publication. The handbook provides information for use in tailoring and supplementing the EME levels specified in MIL-STD-464B. It is applicable to any platform or system that may be exposed to the EME during its life cycle, including ground, ship, aircraft, aerospace and weapons systems and their … [Read more...]
Latest Version of IEEE 1641 Available
The latest revision to IEEE 1641™, “IEEE Standard for Signal and Test Definition,” continues the trend of making the standard more rigorous, according to IEEE StandardsWire. IEEE 1641 provides the means to define and describe signals used in testing. It also provides a set of common basic signals, built upon formal mathematical specifications so that signals can be combined to … [Read more...]
IEC Releases Latest Edition of CISPR 16-1-1
The International Electrotechnical Commission has released edition 3.1 of the CISPR 16-1-1 Specification for radio disturbance and immunity measuring apparatus and methods - Part 1-1: Radio disturbance and immunity measuring apparatus - Measuring apparatus. This part of CISPR 16 specifies the characteristics and performance of equipment for the measurement of radio disturbance … [Read more...]
European Union Publishes New List of Harmonized Standards
Commission communication in the framework of the implementation of Directive 2004/108/EC of the European Parliament and of the Council of 15 December 2004 on the approximation of the laws of the Member States relating to electromagnetic compatibility and repealing Directive 89/336/EEC.See the list from the Official Journal of the European Union. … [Read more...]
工具使得欧洲，中国标准更多
欧洲中国的标准化信息的平台（CESIP）是一个实用的信息工具，其目的是加强欧洲与中国之间的相互贸易和投资流动的标准和相关的技术法规。该平台是一个网站在中国和/或欧洲的中小型企业会发现在英国和中国的有关的适用和即将到来的标准被应用到他们的产品用于出口到中国和欧洲的信息。欧洲的中小型企业会发现不仅对国家，中国GB标准（自愿性和强制性的），但也对相关行业（部门）的标准，通常要困难得多想与中国做生意的外国公司获得的信息。 … [Read more...]
IEC Releases Corrigendum of CISPR 16 Part 1-1
The International Electrotechnical Commission has posted a corrigendum for the CISPR 16 Part 1 -1, which is the specification for radio disturbance and immunity measuring apparatus. The IEC draws attention to the fact that it is claimed that compliance with this document may involve the use of a patent concerning the measuring receiver with rms-average detector (patent no DE … [Read more...]
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