Broad band network system

Details Broad band network system Broad band network system

H - Electricity

04

J

363/3

H04J 1/02 (2006.01) H04L 12/28 (2006.01) H04M 9/02 (2006.01)

Patent

CA 1200928

- 34 - Abstract of the Disclosure A signal multiplex transmission system has predetermined work stations included in a plurality of terminal units which respectively process data in predetermined forms, and a private branch exchange or PBX. A transmission line is connected between the predetermined work stations and the PBX to commonly transmit frequency-multiplexed data from the PBX to the predetermined work stations. A separation filter separates first multiplexed signals supplied from the predetermined work stations from second multiplexed signals from other work stations and supplies the separated first multiplexed signals to the PBX independently of the second mutiplexed signals, which signals are amplified by an amplifier. A mixer is connected to the PBX, the amplifier and a reception line. The first and second multiplexed signals are mixed by the mixers and composite data is sent onto the reception line. The signal lines are used to transmit the multiplexed signals having the same frequency band.

444014

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