IEC 61947-1 pdf download
IEC 61947-1 pdf download.Electronic projection – Measurement and documentation of key performance criteria 3 Definitions For the purposes of this standard, the following definitions apply. 3.1 active matrix display display that uses switches at each pixel to select those pixels to which a voltage will be applied 3.2 active viewing area horizontal and vertical dimensions in millimetres (inches) of the...
IEC 61097-2 pdf download
IEC 61097-2 pdf download.Global maritime distress and safety system (GMDSS) 1 Scope This part of IEC 61097 specifies the minimum performance requirements, technical charac- teristics and type-testing requirements of the satellite emergency position-indicating radio beacon used in the COSPAS-SARSAT satellite system (satellite EPIRB), as required by Regulation IV/7.1.6 of the 1988 amendments to the 1974 International Convention for Safety of...
IEC 60191-4 pdf download
IEC 60191-4 pdf download.Mechanical standardization of semiconductor devices 4 Coding system for semiconductor-device packages 4.1 General The standard coding system is a method for identifying the physical features of an electronic device package family. The system is predicated upon a minimum two-character designator, which indicates the package outline style. This designator can be extended, through the use of optional, user-selected...
ISO IEC 23289 pdf download
ISO IEC 23289 pdf download.Information technology — Telecommunications and information exchange between systems — Corporate telecommunication networks 1 Scope This International Standard specifies signalling interworking between “QSIG” and “H.323” in support of basic services within a corporate telecommunication network (CN). “QSIG” is a signalling protocol that operates at the Q reference point between Private Integrated services Network eXchange (PINX) within...
IEC 61377-3 pdf download
IEC 61377-3 pdf download.Railway applications – Rolling stock 1 Scope and object This International Standard applies to the combinations of motor(s), indirect convertors and their control system and its object is to specify: − the performance characteristics of electric drives consisting of a convertor, alternating current motors, and the related control system; − methods of verifying these performance characteristics by...
IEC 60352-7 pdf download
IEC 60352-7 pdf download.Solderless connections 1 Scope and object This part of IEC 60352 is applicable to spring-clamp connections made with stripped wire without further preparation: – solid conductors of 0,32 mm to 3,7 mm nominal diameter (0,08 mm 2 to 10 mm 2 cross- section), or – stranded conductors of 0,08 mm 2 to 10 mm 2 cross-section, or...
IEC 62056-42 pdf download
IEC 62056-42 pdf download.Electricity metering – Data exchange for meter reading, tariff and load control 1 Scope This part of IEC 62056 specifies the physical layer services and protocols within the Companion Specification for Energy Metering (COSEM) three-layer connection oriented profile for asynchronous data communication. The document does not specify physical layer signals and mechanical aspects. Local, implementation-specific issues are...
IEC 61754-4 pdf download
IEC 61754-4 pdf download.Fibre optic connector interfaces 1 Scope This part of IEC 61754 defines the standard interface dimensions for type SC family of connectors. 2 Description The parent connector for the type SC connector family is a single position plug connector which is characterized by a 2,5 mm nominal ferrule diameter. It includes a push-pull coupling mechanism which is...
IEC 60761-1 pdf download
IEC 60761-1 pdf download.Equipment for continuous monitoring of radioactivity in gaseous effluents 1 Scope and object This part of IEC 60761 defines acceptable forms of such monitoring, provides some general guidance as to the possible range of measurement and capability of such equipment as may be envisaged, and indicates when and where its uses may be practicable. This standard is...
IEC 60050-444 pdf download
IEC 60050-444 pdf download.International Electrotechnical Vocabulary 1 Scope In the past, IEC 60050-446 (Part 446 of the IEV) listed the terminology for all types of electrical relays. In order to improve the precision of terms and definitions as well as the general visibility of relay terminology, it had been decided to split that part of the IEV into three separate...