VT220

This Owner's Manual serves as a comprehensive guide for operating and maintaining the VT220 video terminal. It covers the terminal's components, various operating states (Set-up, On-line, Local), and different operating modes (VT200 7-bit/8-bit, VT100, VT52), including character set modes and CRT saver features. The document details the terminal's controls, indicators, and connectors, with a focus on the keyboard's multiple keypads, function keys, and visual/audible indicators.

Furthermore, the manual outlines operating procedures such as printing in different modes (Normal, Auto print, Printer controller, Local controller) and composing special characters using three-stroke or two-stroke sequences. A significant portion is dedicated to terminal set-up, explaining how to define operating characteristics through various set-up screens (e.g., Display, Communications, Printer, Keyboard, Tab). It also provides detailed information on communication, including host and printer interfaces, modems, cabling, character formats, data flow control (XON/XOFF), and buffer overflow prevention.

Finally, the manual includes a problem-solving section for common operating issues and power-up self-tests, along with appendices that list technical specifications for the VT220 terminal, available options, related documentation, and illustrations of various national keyboards.