VITA 3:1995 (R2011)

Advances in technology allow smaller board sizes to perform the functionality that a few years ago required a larger board. Alternatively, these advances allow increased functionality on the same sized boards. Thus, VMEbus boards and system designs are greatly increasing in capability. Where once a radio room had six separate chassis containing one radio each, that radio room today has one chassis housing six radios. This size reduction has created the demand for highly reliable and easily maintainable systems. The Telecommunications and Defense applications require a more fault tolerant, live insertable VMEbus. Currently, live insertion and extraction is not supported by the IEEE 1014 VMEbus standard. The VMEbus and Futurebus+ Extended Architectures International Trade Association (VITA) has responded by forming the Recommended Practices Guide to Board Level Live Insertion for the VMEbus Working Group to examine solutions for a Board Level Live Insertable VMEbus. This document recommends practices to implement board level live insertion with existing VMEbus boards.