Bidirectional wire communication device

摘要

The microprocessor (6) with a memory (7) and a control circuit (5) has a remote terminal with a power source (8). The remote terminal's telephone circuit and a modem (2) supplement a data input and output system (2') with a display (3) and e.g. a monitor (3'). The automatic communication facility is operated via cards, and the display has five 20-character lines.