Non-polar two-line system communication circuit
A communication circuit, two-wire technology, applied in the fixed station through two conductor transmission systems and other directions, can solve the problems of wiring errors, damage to master and slave components, and high costs, and achieve the effect of reducing requirements.
Active Publication Date: 2012-01-18
SHENZHEN MCQUAY AIR CONDITIONING
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The invention discloses a non-polar two-line system communication circuit which aims to solve the technical problem of preventing the occurrence of errors in the process of connection. The invention adopts the following technical scheme: a non-polar two-line system communication circuit comprises a host terminal and a slave terminal, wherein the host terminal is connected with the slave terminal and controls the slave terminal, the inside of the host terminal is provided with a host-terminal sending and receiving line module, the inside of the slave terminal is provided with a slave-terminal sending and receiving line module, and the host-terminal sending and receiving line module is connected with the slave-terminal sending and receiving line module in a non-polar two-line system connection mode. Compared with the prior art, an indoor unit controller for air conditioners supplies power for a temperature control device for air conditioners and carries out communication with the temperature control device by a power line, and the connection mode is a non-polar connection mode; and two lines can simultaneously carry out power supply and communication, thereby solving the problem that two lines simultaneously supply power and transmit signals, and reducing the demands on leads and installation.
Application Domain
Fixed station two-conductor transmission systems
Technology Topic
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