Asynchronous Terminals WS520

This user guide provides comprehensive instructions for the installation, configuration, and maintenance of the WS520 video terminal. It covers how to set up the terminal, including connecting cables, performing power-up self-tests, and navigating the Set-Up menu to customize various operating features like language, communication parameters, and session settings.

A key feature highlighted is the support for multiple virtual sessions, allowing the WS520 to function as up to four terminals simultaneously, sharing a single display and keyboard. The guide explains how to leverage Terminal Device/Session Management Protocol (TD/SMP) or Session Support Utility (SSU) host software to enable multiple sessions over a single communication port, along with tips for managing and switching between sessions, including split-screen displays and session context restoration.

The document also details several desktop productivity features accessible from the Actions menu, such as a clock with alarms, a calculator with various number formats, and a tool to display and insert character sets. It also outlines how to customize the power-on banner message. A keyboard summary provides quick access to functions like screen hold, printing, Set-Up access, session switching, and copy/paste operations, alongside an accessibility aid for users with limited motor skills.

Furthermore, the guide includes instructions on using the Define Key Editor to customize keyboard functions, allowing users to redefine keys, create new functions, or program key sequences. It also offers a troubleshooting section for common issues like printing problems or modifier key behavior, as well as guidance on cleaning the terminal and installing/removing ROM cartridges. Finally, a detailed specifications appendix covers physical dimensions, display characteristics, supported operating systems and emulations, electrical requirements, environmental conditions, keyboard specifications, communication ports, power cords, and various regulatory standards conformance and environmental declarations.