ASYMMETRICAL DATA TRANSMITTING DEVICE USING ASYMMETRICAL DIGITAL SUBSCRIBER LINE AND ITS SUBSCRIBER LINE CONNECTING METHOD

摘要

PROBLEM TO BE SOLVED: To obtain a device which reduces the waste of line resources and improves an availability factor by selectively connecting a subscriber modem part to a slave station device as necessary. ;SOLUTION: Subscriber modem parts 204 are selectively connected to a slave station device as necessary. For this, a master station device 200 consists of many subscriber line connecting parts 202, many parts 204, a subscriber line switching part 206 and a line connection controlling part 208. The part 206 is connected between the parts 202 and the parts 204 and selectively connects the parts 202 and the parts 204 in accordance with the control of the part 208. The part 208 connects a subscriber modem part 204 which is made active to a subscribe line connecting part that detects a start signal through the part 206. Here, the number of the parts 204 is smaller than the number of slave station devices.;COPYRIGHT: (C)1999,JPO