MP00522 DR01CL Massbus Channel Interface Jan78

This document is a "Field Maintenance Print Set" (manual) for the DRØ1-CL, a product of Digital Equipment Corporation, published in 1977. It provides detailed technical information essential for the maintenance and understanding of the DRØ1-CL.

The manual includes:

• Table of Contents and Drawing Directory: Listing all included diagrams and sections.
• Architectural Overview: High-level block diagrams of the MB Channel Interface.
• Parts Lists: For the MB Channel Interface and Module Utilization.
• Schematics: Detailed circuit diagrams for Mass Bus Transceivers (MB1, MB2, MB3), Standard and Extended User Interfaces, Link Connectors (LK1, LK2), the Control Module, Twisted Pair Cable Connector, and Drive Transceiver.
• Functional Diagrams: Illustrations of DRØ1 Data Flow and Register Organization.
• Timing Diagrams: Depicting operations for Byte Mode Read, Byte Mode Write, and Word Mode.
• Test Information: Details for a "DR70 Test Card."
• Ship List: A final list of components.

The document serves as a comprehensive technical reference for servicing and understanding the DRØ1-CL system.