PDP-11/45 system engineering drawings

This document is a comprehensive collection of engineering drawings and technical specifications for the Digital Equipment Corporation (DEC) PDP-11/45 computer system. It includes detailed drawing directories that list various sub-systems, modules, and their corresponding documentation, including revisions and unit variations.

The content spans multiple aspects of the PDP-11/45, featuring:

• System Architecture: Hierarchical block diagrams illustrate the overall system and its 16-bit processor, outlining the interconnections of major components like memory, power supplies, and input/output interfaces.
• Circuit Details: Numerous pages provide detailed circuit schematics for specific components, such as the 11/45 Console Board, Asynchronous Line Interface, Pilot Control, and various voltage regulators (+5V, -15V, +20V).
• Component Listings: Detailed parts lists specify components required for different assemblies, along with software and accessory lists for various DL11 configurations.
• Assembly & Installation Guidance: Engineering specifications and installation procedures are provided for modules like the DL11 Asynchronous Line Interface, covering aspects such as data format selection and power module installation.
• Interconnections: Wire lists and cable assembly drawings detail wiring connections and cable specifications within the system.
• Power System: Comprehensive power system configurations (H742 Upper/Lower Power Supply) are detailed with circuit diagrams and ECO summaries.
• Physical Layouts: The 11/45 Back Panel PC Board layout is illustrated, showing slot configurations and connectors.
• System Configurations: Arrangement drawings display different PDP-11/45 system configurations, such as time-sharing, batch processing, and real-time systems, indicating the modules included in each.

Overall, this document serves as an essential technical reference for the design, assembly, installation, maintenance, and troubleshooting of the PDP-11/45 computer system.