Control card for remote switching af apparatus over telephone network

摘要

The card (10) includes a mains (8) and a telephone terminal (2) and a system control (1) for a switch (4). The system control controls the switch according to a telephone extra code of frequency coded numerical combination when a telephone connection is set up. The control card has at least three coupling sockets (5), each for an apparatus terminal (9), which connect to the mains terminal, each via a switch controlled current line (6,6'). Each switch is controlled by the user's input of a telephone code of a frequency coded numerical combination. The system control provides the operational safety for the switch.