| 摘要 |
PURPOSE: A time division communication apparatus is provided to promote the reliability of a product using a predetermined communication method like an RS-485 method. CONSTITUTION: When two lines of a main control unit provide power, a power supply unit(210) provides operation power sources to each circuit unit. When the power supply unit is blocked, the power supply unit provides the pre-charged temporary power source to each circuit unit. A power sensing unit(220) operates a communication connection switch unit(250) when the power supply unit is blocked. A slave control unit(230) transmits a response signal to the main control apparatus using a slide communication module by responding to a request signal inputted using a slave communication module(240) of the main control apparatus. The communication connection switch unit communicates with the communication module of the main control apparatus.
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