Information technology - Data communications - X.25 Packet Layer Protocol for Data Terminal Equipmen...
This International Standard specifies the procedures, formats and
facilities at the Packet Layer for Data Terminal Equipment (DTE)
operating in conformance with ITU-T Recommendation X.25.
Both Virtual Call and Permanent Virtual Circuit modes of
operation are covered.
The Packet Layer protocol specified herein can be used in both
Open Systems Interconnection (OSI) and non-OSI environments.
When…
Information technology — Data communications — X.25 Packet Layer Protocol for Data Terminal Equipmen...
This International Standard specifies the procedures, formats and
facilities at the Packet Layer for Data Terminal Equipment (DTE)
operating in conformance with ITU-T Recommendation X.25.
Both Virtual Call and Permanent Virtual Circuit modes of
operation are covered.
The Packet Layer protocol specified herein can be used in both
Open Systems Interconnection (OSI) and non-OSI environments.
When…
Lead-acid traction batteries - Part 2: Dimensions of cells and terminals and marking of polarity on ...
Specifies: - the maximum external (overall) dimensions of traction battery cells, that is, the width, the height and the length; - the form of the marking of traction battery cell polarity and dimensions of corresponding symbols; - the basic dimensions of some commonly used traction battery terminals designed to connect output cables to the battery This consolidated version consists of the third…
Gas-Fired Room Heaters - Volume II, Unvented Room Heaters
1.1 Scope
1.1.1 This Standard applies to newly produced gas-fired unvented room heaters and gas-fired unvented decorative room heaters for connection to the house fuel supply system (see Part IV, Definitions), hereinafter referred to as room heaters or appliances, constructed entirely of new, unused parts and materials, having input ratings up to and including 40,000 Btu per hour (11 723 W)…
Low-voltage switchgear and controlgear - Part 1: General rules
Applies, when required by the relevant product standard, to switchgear and controlgear hereinafter referred to as "equipment" and intended to be connected to circuits, the rated voltage of which does not exceed 1 000 V a.c. or 1 500 V d.c. It states those general rules and requirements which are common to low-voltage equipment as defined in Subclause 1.1, including for example:…
Appareillage à basse tension - Partie 1: Règles générales
Applies, when required by the relevant product standard, to switchgear and controlgear hereinafter referred to as "equipment" and intended to be connected to circuits, the rated voltage of which does not exceed 1 000 V a.c. or 1 500 V d.c. It states those general rules and requirements which are common to low-voltage equipment as defined in Subclause 1.1, including for example:…
Information technology - Home Electronic System (HES) interfaces - Part 2: Simple Interface Type 1
A Simple Interface (SI) is an interface between devices and a home network in the Home Electronic System (HES). The SI type 1 connects simple devices offering and accepting only a two state signal to an HES home network. Two signals are available at the SI type 1. One is a control signal for turning the device on and off. The other is a monitor signal for checking the state of the device. This…
Information technology - High-Performance Parallel Interface - Part 2: Framing Protocol (HIPPI-FP)
This standard defines the data framing for an efficient simplex high-performance point-to-point interface. Characteristics of HIPPI-FP include: - large block data transfers with framing to split the data into smaller bursts; - separation of user control and data information, and early delivery of the control information; - identifiers for multiple upper-layer protocols (ULPs); - support for…
Information Technology - Home Electronic System (HES) Architecture - Part 2: Device modularity
HES standards address both interoperability requirements, interconnectivity requirements and plug-compatibility requirements. Devices are described as interoperable if the functionality of the higher communication layers is such that commands can be exchanged and result in meaningful action. For interconnectivity it is sufficient to specify mechanical, electrical, and functional (lower layer…
Electromechanical contactors for household and similar purposes
Applies to electromechanical air break contactors for household and similar purposes provided with main contacts intended to be connected to circuits the rated voltage of which does not exceed 440 V a.c. with rated operational currents less than or equal to 63 A for utilization category AC-7a and 32 A for utilization category AC-7b, and rated conditional short-circuit current less than or equal…
