PDP-11/94-E System

This document is a comprehensive guide for the PDP-11/94-E computer system, intended for Digital Customer Services personnel and qualified self-maintenance customers. It includes the following:

• System Overview: Detailed components, features, and specifications of the 120V and 240V systems.
• Installation & Unpacking: Physical site requirements, unpacking, installation of system boxes and cabinets, and cable management.
• Operation: Comprehensive instructions on using the front panel, console/serial line unit (SLU) switches, and ROM commands (Dialog Mode).
• Configuration: Information on backplane rules, KDJ11-E CPU and KTJ11-B UBA module configuration, and minimum load module settings.
• Functional Description: Deep dive into the private memory interconnect (PMI), bus signals, memory management, and internal registers.
• Diagnostics & Troubleshooting: Guidelines for interpreting LED codes and system error messages.
• Maintenance: Procedures for the removal and replacement of field replaceable units (FRUs).
• Upgrading: Instructions for upgrading PDP-11/84 systems to the 11/94 model.
• Appendices: Setup worksheets, backplane pin assignments, battery backup unit installation, and hardware/software differences.