IEEE 959-1988
IEEE Standard Specifications for an I/O Expansion Bus: SBX Bus
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About This Item
IEEE 959-1988 is a technical standard for an I/O expansion bus, specifically the SBX Bus, with guidance aimed at computing and related component systems. It helps define how expansion hardware should connect and operate so interfaces are more consistent across designs. For engineers working with legacy or specialized bus-based equipment, IEEE 959-1988 provides a clear reference for integration, compatibility, and implementation decisions where stable electrical and functional behavior matter.
What is IEEE 959-1988?
IEEE 959-1988 defines specifications for the SBX Bus, an I/O expansion bus used in computing and processing environments. The document focuses on the technical characteristics needed to support reliable expansion between a host system and attached modules or boards. As a standard, it gives designers and procurement teams a common basis for understanding the bus structure, expected behavior, and interface requirements. IEEE 959-1988 is especially relevant when consistency and interoperability are important in system architecture.
Where is IEEE 959-1988 used?
This standard is typically used in computing systems that depend on modular I/O expansion, such as embedded controllers, industrial computers, and specialized processing equipment. It is relevant wherever the SBX Bus is part of the hardware design or maintenance environment. IEEE 959-1988 may also support documentation review, board-level integration, and technical evaluation of older or niche equipment that still relies on a defined expansion bus. In these settings, the standard helps align system components and interface expectations.
Why is IEEE 959-1988 important?
IEEE 959-1988 matters because bus specifications directly affect system compatibility, design control, and long-term supportability. Clear requirements reduce the risk of mismatched expansion hardware, integration errors, and inconsistent behavior during testing or deployment. For teams managing procurement, repair, or legacy system upkeep, the standard offers a stable reference for checking conformance and preserving predictable operation. IEEE 959-1988 can also help document technical expectations when evaluating replacement or interface-compatible modules.
- SBX Bus expansion interface
- I/O module compatibility
- Legacy system integration
- Board-level technical reference
- Publication Date: 1988
- Standard Status: Inactive
- Publisher: IEEE
- Subject: Computing and Processing; Components, Circuits, Devices and Systems
- Official IEEE: Doi link
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