| 摘要 |
PURPOSE:To detect a failure of a receiver, by discriminating an access control data in a transmitted data from the other data, and transmitting each together with the synchronizing bit, in transmitting the data from a central processing unit to the reception side of a line controller, and using a synchronizing bit provided to the 1st data at the reception side. CONSTITUTION:In a transmitter 3, a data signal from a data forming section 31 such as a central processing unit is transmitted to a reception circuit 41 via a transmission circuit 32. Data not including an access signal are transmitted together with the 1st synchronizing signal. The received data are inputted to a register circuit 42 via the reception circuit 41. The 1st synchronizing signal AYNC.1 distributes 43 the data, and detects the failure together with an NOR gate 45 and a register 46. The accessed data are received with synchronizing signal SYNC.2, and transmitted to other stations via the reception circuit 41, the register 42, a decoder 44, and a gate 47. |
