| 摘要 |
PURPOSE:To set the transfer rate of transmission unit in optimum state, by including the transfer rate in the transmission information so that the transfer rate can arbitrarily be changed. CONSTITUTION:When the system power supply is turned on, transfer is started with the reference transfer rate To together with the master station 1 and slave stations 2, 3. The information A from the master station includes the control information to the slave station and the transfer rate information. The transfer information is similarly included in the information fed from the master to slave station and this is the confirmation response signal to the master station. When the master station receives information from the slave station, the confirmation response signal is delivered to the slave station, and the transfer rate is selected to Ta after a given time. When the slave station receives the confirmation response signal from the master station, the transfer rate is immediately selected to Ta. Thus, the master and slave station forms the transmission system of the transfer rate Ta and it is kept if the transfer rate alteration instruction is not delivered from the master station. As to other slave stations, this can be applied similarly. |
