Printer selector for computer networks - has selector connecting number of printers to computer, or vica versa, with input control and display unit

摘要

The selector (1) connects at least one computer (2) to a pair of printers (5, 6), and contains a processor (59) coupled to parallel-series converters (55,56). Parallel data lines (32) connect the units and a transmission link (42) is established as a serial line to a control and stage (22). A similar serial connection is made between the selector and the printer to a display (25) indicating the activation status of the system via a series of LEDs. Printers are selected by sending control commands which are interpreted by the selector. ADVANTAGE - Simple and reliable control of printer switching.