PDP-6 JOSS Console Instruction Manual

This document serves as an instruction manual for the JOSS Console, a remote computer input/output communication station for the PDP-6 computer. Functionally, it operates as an IBM Model 731 Selectric I/O writer, enabling users to send character keys, machine functions, and requests to the computer, and receive system responses.

The manual details the console's theory of operation, covering the power-on sequence, the communication of 8-bit encoded characters and functions between the console and the computer, signal protocols, parity error handling, and interrupt mechanisms. It provides flow diagrams and timing diagrams to illustrate these processes. Practical operating procedures are outlined, explaining the use of console controls and indicators (like power, system status, and typewriter lights). Additionally, it includes maintenance guidelines, such as marginal check facilities and procedures, and specifies installation and interface requirements, including power connections and data phone interfaces. The bulk of the document consists of comprehensive engineering drawings, including block and circuit schematics, logic signal definitions, and component identification for troubleshooting and repair.