Programmable controllers - Part 4: User guidelines
Provides guidelines that address the application of the programmable controllers (PC) and associated peripherals. It also deals with the integration of PCs into the automated system.
Provides information that assists the user in:
-utilizing the other parts of the programmable controller standard;
-specifying the requirements for PC applications;
-selecting and implementing PC systems.
The…
Automates programmables - Partie 4: Guide pour l'utilisateur
Donne des directives sur l'application des automates programmables (AP) et des périphériques associés. Traite aussi de l'intégration des AP dans le système automatise.
Fournit des informations destinées à aider les utiilisateurs au niveau de:
- l'utilisation d'autres parties de la norme sur les automates programmables;
- l'indication des prescriptions relatives aux…
Protection against lightning electromagnetic impulse - Part 1: General principles
Gives information for the design, installation, inspection, maintenance and testing of an effective lighning protection system for information systems in or on a structure.
Protection contre l'impulsion électromagnétique générée par la foudre - Partie 1: Principes gén...
Donne des informations relatives à la conception, la réalisation, la vérification, l'entretien et les essais d'installations efficaces de protection des systèmes informatiques situés à l'intérieur ou sur les structures.
Information technology — Telecommunications and information exchange between systems — 50-pole inter...
Specifies a 50-pole connector, including the necessary mateability dimensions and the assignment of contact numbers, for use at the interface between data terminal equipment (DTE) and data circuit terminating equipment (DCE). Applicable where the functional characteristics of the interface conform to CCITT Recommendation V.24 and the electrical characteristics conform to ITU-T Recommendation V.12.
Information technology - Telecommunications and information exchange between systems - 50-pole inter...
Specifies a 50-pole connector, including the necessary mateability dimensions and the assignment of contact numbers, for use at the interface between data terminal equipment (DTE) and data circuit terminating equipment (DCE). Applicable where the functional characteristics of the interface conform to CCITT Recommendation V.24 and the electrical characteristics conform to ITU-T Recommendation V.12.
Information technology - Protocol for providing the connectionless-mode network service: Provision o...
Specifies the way in which the underlying service assumed by the protocol defined by ITU-T Rec. X.233 ISO/IEC 8473-1 is provided by a subnetwork that conforms to ITU-T Recommendation X.25 through the operation of a Subnetwork Dependent Convergence Function (SNDCF) as described in ISO/IEC 8648. Also provides the PICS proforma for this protocol, in compliance with the relevant requirements and in…
