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Description / Abstract:
This standard is designed for use in conjunction with other
standards such as the IEEE 1101 group of standards (Mechanical
Specification for Microconnectors and Eurocard Form Factors), the
IEEE 896 group of standards (Futurebus+®), the IEEE 1596 group of
standards (Scalable Coherent Interface), the IEEE 1014 group of
standards (VMEBus), and ISO/IEC 10861: 1994 (MULTIBUS 11).
This standard is one of the IEEE P1156.x series for
environmental specifications. It is intended to be used as a core
specification. It contains minimum environmental withstand
conditions applicable to computer systems and all of their
associated components. It has been created to provide general
environmental withstand conditions for one or more of the above
listed computer busses or interconnect standards, and electronic
equipment in general.
While this standard was specifically created for use with IEEE
Computer Society bus standards, nothing herein is intended to
restrict its use for other applications, where applicable. A
supplier and user may agree to more or less restrictive
environmental specifications than those listed below. However, if
their specifications are less restrictive than those listed herein,
neither supplier nor user may claim conformance to this
standard.
Purpose
It is the purpose of this standard to provide a core
specification for physical integrity and environmental performance
levels for computer systems.
It is the responsibility of the system designer to evaluate the
relationship between module- and componentlevel environmental
specification and the system-level environmental specification for
the enclosure that contains the modules. For example, the modules
are conduction or convection cooled and a system-level thermal
"model" is required to determine the relationship and compatibility
between the module's heat sink and the system-level cooling
medium.