IEEE 488.1-2003

IEEE 488.1-2003 IEEE Standard For Higher Performance Protocol for the Standard Digital Interface for Programmable Instrumentation
standard by IEEE, 12/12/2003

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Full Description

Scope

This standard will build on the interface functions defined in IEEE Std. 488.1-1987 to define a set of interface functions that will enable higher transfer rates between devices adhering to this specification while still maintaining the ability for these devices to communicate with existing IEEE Std. 488.1 devices. Topics within the scope of this standard include: Extensions to the interface functions defined in IEEE Std. 488.1; Definition of new interface functions; Possible extensions to the remote message codes defined in IEEE Std. 488.1; Guidelines for calculating delays required to implement the new protocol at different distances.

Purpose

The purpose is to develop an extension of the IEEE Std. 488.1 that provides a means for achieving significantly higher data transfer rates (3-10 MB/sec) than the current standard while maintaining compatibility with existing devices.

Abstract

Revision Standard - Active.This standard applies to interface systems used to interconnect both programmable and nonprogrammable electronic measuring apparatus with other apparatus and accessories necessary to assemble instrumentation systems. It applies to the interface of instrumentation systems, or portions of them, in which the a) Data exchanged among the interconnected apparatus is digital (as distinct from analog); b) Number of devices that may be interconnected by one contiguous bus does not exceed 15; c) Total transmission path lengths over the interconnecting cables does not exceed 20 m; d) Data rate among devices does not exceed 8 000 000 B/s. The basic functional specifications of this standard may be used in digital interface applications that require longer distances, more devices, increased noise immunity, or combinations of these. Different electrical and mechanical specifications may be required (for example, symmetrical circuit configurations, high threshold logic, special connectors, or cable configurations) for these extended applications.