Describes the Logical Level 3 (generic level) Interface for tape drives. See clause 6 of ISO/IEC 9318-1 for an explanation of the levels. The purpose of this standard is to facilitate the development and utilization of an intelligent interface which permits the interconnection of multiple peripheral types such as disk, tape, communications, to a controller. It provides a definition of the device-generic portion of a family of standards called the Intelligent Peripheral Interface (IPI)