LINE CONCENTRATION AND SWITCHING APPARATUS AND METHOD BETWEEN ANALOG SUBSCRIBER INTERFACE UNIT AND TIME DIVISION SWITCH FOR SMALL CAPACITY WIRED TYPE SWITCHING SYSTEM

摘要

PURPOSE: A line concentration and switching apparatus and a method between an analog subscriber interface unit and a time division switch for a small capacity wired type switching system are provided for effectively increasing and decreasing the capacity of subscribers and implementing an efficiency service. CONSTITUTION: A small capacity wired type switch system having a line concentration and switching apparatus includes a plurality of analog subscriber interface units(10), a time division switch unit(20), and an analog interface processor(30). The plurality of the analog subscriber interface units(10) includes a plurality of analog subscriber line-board assembly units(11), a telephone device-BUS interface unit(12), and an analog subscriber control-board assembly(100).