DEVICE FOR CONNECTING PLURAL SUBSCRIBER LINES TO TELECOMMUNICATION DEVICE

摘要

PROBLEM TO BE SOLVED: To decrease the number of modules for each subscriber line by providing a signal processing unit and plural standby processing units for the device, connecting the device to the telecommunication device via a 2-way line, connecting each standby processing unit to the signal processing unit via a 2-way line and connecting each subscriber line to any of plural standby processing units via each 2-way line. ;SOLUTION: Standby processing units 21-24 apply sigma delta conversion to digital voice data received from a signal processing unit 1 and provided an output of an analog signal. The signal is processed in the signal processor with a low operating capability with respect to plural subscriber lines mainly in the middle and data are transmitted via a 2-way line 6 to reduce wiring cost. Furthermore, duplicate exchange of data is attained between the signal processing unit 31 and any corresponding processing unit among the standby processing units 21, 22, 23, 24 at a prescribed time interval through plural subscriber lines 411, 421, 431, 441-414, 424, 434, 444.;COPYRIGHT: (C)2000,JPO