| 摘要 |
PURPOSE:To prevent unbalance of the degree of response to an emergency traffic request between slave stations by assigning a time slot transmitting an emergency interruption traffic request to each slave station individually and allowing each slave station to make an emergency interruption traffic request within the assigned time slot. CONSTITUTION:A transmission time control signal is generated as an output of a clock circuit 23 at a time slot corresponding to the own station among plural time slots obtained by splitting a time T2 when the traffic with a master station 1 is interrupted momentarily to the slave stations 2-1-2-h respectively corresponding to them. A signal transmission circuit 25 is started by a transmission time control signal being an output of the clock circuit 23, and a slave station number signal transmitted from the signal transmission circuit 25 is transmitted from a radio equipment 20 via a gate circuit 26 and a control signal transmission/reception circuit 21 to the master station 1, which detects the signal at an interruption detecting circuit 12 and the signal is registered in a registration circuit 13. Furthermore, the clock circuit 23 starts counting by a lock signal transmitted from the master station 1. |
