| 摘要 |
PURPOSE:To decrease the processing time required for a repeater station and to improve the system efficiency by transmitting the data format to a low-order or high-order station with the exception of the address of own station out of the data format received at the repeater station. CONSTITUTION:Plural repeater stations 20-1, 20-2- are connected to a monitor station 10 via an high-order data transmission line lh. The terminal stations 30-1, 30-2-40-1, 40-2- serving as low-order stations are connected to the repeater stations via low-order data transmission lines l1, l2- respectively. Each repeater station transmits the data transmission frame format with the exception of the address of own station to a terminal station or the monitor station 10 where the transmission frame format is designated. |
