A COMMUNICATIONS DEVICE EMPLOYING RS485 PROTOCOL

摘要

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication device using RS485, and more particularly to a communication device employing a modified star type wiring structure of RS485. The present invention introduces a new wiring method that overcomes the problems of the conventional daisy chain method when configuring home networking and the like using RS485 communication. Thus, RS485 communication using the present invention can operate normally without any effect of the rest of the devices connected behind even if one device on the network fails, and it is also possible to easily identify the specific device that has failed. Lose.;RS485, star wiring, home networking