| 摘要 |
In a network system (1) composed of consecutive two or more of a plurality of nodes (2) are connected in series, each of said plurality of nodes (2) comprising two sets of receivers (31, 33) and transmitters (34, 32) each performing communication in a single direction, and one node and a next node are connected in the series by connecting one set of said receiver (33) and transmitter (32) in the one node to one set of said transmitter (34) and receiver (31) in the next node by communication cables (CB), respectively. Consecutive two or more of said nodes (2) can form a group operating in a temporary communication mode or in an audio transport mode.
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