Illustrated Parts Breakdown 660QF Cabinet System

This document is an Illustrated Parts Breakdown (IPB) manual for the 660QF Cabinet System, also identified as an RA90 System.

Published by Digital Equipment Corporation in 1991, its primary purpose is to identify and detail all components of the system.

The manual includes:

• Instructions on how to use the IPB, explaining its organization, nomenclature, and the meaning of various columns in the parts lists (e.g., Description, DEC Part No., ECO Cut-In).
• Detailed illustrations (Figures 1 and 2) providing visual breakdowns of the main 660QF Cabinet System and its major subassemblies, such as the H3602 Bulkhead Module, highlighting specific components with callout numbers.
• Indented Parts Lists that methodically itemize each part, using an asterisk system to denote hierarchical relationships (subordination) within assemblies. Each entry includes a description, Digital Equipment Corporation (DEC) part number, engineering change order (ECO) cut-in information, and codes indicating on which system variations the part is used.
• A Revision History detailing printing dates and ECO levels.
• Comprehensive Part Number/Description Indexes allowing users to quickly locate specific components by either their part number or descriptive name, cross-referenced with figure and item numbers.

In essence, it serves as a complete guide for identifying, ordering, and understanding the physical composition of the 660QF Cabinet System.