| 摘要 |
PROBLEM TO BE SOLVED: To provide a network system which is suitable for a small space, such as a building, where a plurality of communication users exist. SOLUTION: The network system is installed for each division, and is provided with a plurality of transmission/reception devices connected to a construction network of the division or an information processing device, and a signal distribution device for distributing and transmitting a transmitted signal from any of transmission/reception devices, to at least all the transmission/reception devices except the transmission source. Each transmission/reception device has a user identification operation part for performing an operation, for identifying communication user of a division associated with the transmission/reception device and a user identification receiving part for performing effective receiving, when an operation for identifying a communication user of a division associated with the transmission/reception device is executed.
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