| 摘要 |
PURPOSE:To control a remote subscriber by selecting the start of a multiplex subscriber with competition and providing a signal line for competition used for the response request of an upper station managed multiplexedly and a common signal path used for multiplex processing of a monitor and a control signal for the subscriber. CONSTITUTION:When a subscriber 6 hooks up a handset, an A/D converter 7 detects a loop, and its call information is given to a subscriber controller 11 via the A/D converter 10. When the subscriber controller 11 discriminates the subscriber 6, ''1'' is set to a bit number 5 in A-D from the bit number 5 to 8 of a time slot TS0 of a multi-frame F1 assigned to a remote subscriber to set the state of the presence of start cause. Further, a control signal input device 9 is inserted and the signal is inserted and transmits the control signal to a digital exchange 1. The digital exchange 1 monitors the start cause of the remote subscriber at all times, and the signal of the presence of the start cause is inputted to the digital exchange via a subscriber repeater 4, a repeater 3, and a digital input/output device 2. |
