CONTROL SYSTEM USED FOR TELEPHONE DISTRIBUTING FRAME AND/OR CIRCUIT SWITCH BOX

摘要

A control system used for telephone distributing frame and/or circuit switch box is disclosed. The control system comprises: one bus, a plurality of exchange interface circuits, to which voice A/D converter, voice D/A converter and I/O controller are connected, a plurality of telephone interface circuits, to which voice A/D converter, voice D/A converter, off-hook A/D converter and I/O controller are connected, and one processor which is connected to the bus and controls operation of those A/D, D/A connection between a particular up-connected port and a particular down-connected port via said bus. So automatic and remote control of the telephone distributing frame is achieved, manual cost is reduced, and performance of the distributing frame and/or circuit switch box is improved to be more effective and reliable.