| 摘要 |
PURPOSE:To average CPU loads and to relax the setting condition of transfer speed by controlling a timing generator and transmitting shifted plural frame signals. CONSTITUTION:Plural sub station devices EQ1 and EQ2 are connected to a main station communication equipment 1. The output of a timing generator 4 is supplied to a CPU 20 and data transceiver 11 to 18 on a communication equipment 1 and the exchanging data is stored in a buffer memory with equal number of bits and words. Here, the position element on the word is decided when time element is synchronized with a synchronizing signal IPHI1 outputted from a generator 4 while turning bit side to a time element and word side to a position element. Here, successively shifted plural frame synchronizing signal is generated and transmitted to communication equipments EQ1 to EQ8 individually. Then since the synchronizing signal is transmitted from the CPU 20 with time difference, the load of the CPU 20 is averaged and the design condition associated with the transfer speed is relaxed, and the reliability is improved. |
