| 摘要 |
<p>PURPOSE:To simplify the constitution of each means and circuit and achieve cost cut by installing a means for starting each communication node, means for forming the ON/OFF signal for each starting means, and a means for the transmission of the ON/OFF signal to each starting means, in a plurality of communication nodes. CONSTITUTION:A microcomputer 1, multiple module 2 which is connected with the microcomputer 1 and inputs and outputs control signals as multiple signals, and a wake-up circuit (starting means and starting signal formation means) 3 which is connected with the microcomputer 1 and wakes up (starts) the microcomputer 1 are installed in a communication node A. Other communication nodes B and C are constituted in similar manners. Each multiple module 2 in a plurality of communication nodes A-C is connected each other through the multiple transmission passages 4 and 41 consisting of the twist pair lines, and each wake-up circuit 3 is connected each other through the wake-up lines (transmission lines) 5 and 51. Accordingly, starting (wake-up) is enabled by the simple ON/OFF signal.</p> |
