PDP-8 Data Multiplexer

This maintenance manual provides comprehensive information on the DM01 Data Multiplexer, which functions as a high-speed switching device for up to seven peripheral devices connecting to a PDP-8 computer using the data break facility. The document includes technical descriptions of the DM01's logic operation, detailed block diagrams, interface connection specifications, installation guidelines, power supply requirements, and troubleshooting procedures. It also contains an extensive set of schematics and semiconductor substitution tables to facilitate repair and maintenance.