Data Multiplexer

The DM01 Data Multiplexer manual, originally published in 1968, serves as a comprehensive guide for maintaining the device. The DM01 functions as a switching unit between a PDP-8 computer and up to seven peripheral devices that utilize the PDP-8 data break facility. The document includes chapters on:

• Operation: A detailed breakdown of the logic, including multiplexer control, level production, and line selection for data addresses and bits.
• Interface: Information on cable diagrams and connector assignments.
• Power Supply: Specifications and check procedures for the Type 728 Power Supply.
• Maintenance: Preventive and corrective maintenance strategies.
• Installation: Requirements for mounting and environment.
• Schematics: A set of engineering diagrams for the various modules used within the multiplexer.