| 摘要 |
PURPOSE:To quickly perform inter-node communication while preventing the disturbance of communication of other nodes, by using successively a communication channel used for communication addressed to its own node to the communication addressed to another node from its own node via its own node transmission. CONSTITUTION:A multiplexing signal transmitted via a serial data signal line 18 is separated by a separating part 30 and signals corresponding to nodes are sent successively to a node detecting circuit 32. The signal addressed to its own node is taken in by the relevant node at the circuit 32 via a node logical part 34. The address signals applied to a transmission node controlling circuit 46 from the part 34 are coincident with those addresses except the address of its own node. As a result, a signal of a low level is applied to an AND gate 42 from the circuit 46 and therefore the signals except the signal of its own node are sent to a multiplexing circuit 52 from the circuit 32. These signals are multiplexed again and sent to the line 18.
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