GENERAL INTRODUCTION This document contains a specification for general purpose interconnect modeling in an IBIS (I/O Buffer Information Specification) compatible format. It was written to provide means for modeling all electrical interconnect types@ including connectors@ cables@ packages@ and printed circuit boards. This section gives a general overview of the remainder of this document. Sections 2 to 5 contain general information about the IBIS versions and the general rules and guidelines. The remaining sections describe the interconnect keywords and usage rules.