DECstation 5000 Model 240

This document covers the operation, hardware installation, and maintenance of the DECstation 5000 Model 240 series workstation. It includes sections on:

• Setting up the Workstation: Instructions for connecting the monitor, keyboard, and other input devices, as well as site and power requirements.
• External Additions: How to connect and configure external SCSI storage devices and optional network connections (ThickWire, ThinWire, twisted-pair).
• Internal Parts: Information on upgrading or replacing internal components like memory modules, NVRAM, and CPU modules, including safety precautions like using an antistatic wrist strap.
• Console Commands: A detailed reference for the console mode, including commands to boot the system, manage environment variables, and run self-tests.
• Troubleshooting: Diagnostic procedures using the system's LED displays and self-test error messages, along with solutions for common operational problems.
• Specifications: Detailed technical specifications for the system unit, keyboards, mice, storage drives, and other peripherals, along with connector pin assignments and UK regulatory information.