neutral over-current relay

In this paper,the standard of RS 485 bus and its applications in an channel detecting and accident switching are introduced,and in the situation of overfull load notes or overlong transmission distance,a repeat circuit of RS 485 is proposed.

介绍了RS 485总线规范及其在远动信道监测及故障倒换中的应用,并针对负载节点过多或传输距离长的特点,提出了一种RS 485中继电路。

In this paper, the standard of RS-485 bus and its applications in an UPS monitor system are introduced, and in the situation of overfull load nodes or overlong transmission distance, a repeat circuit of RS-485 is proposed.

介绍了RS 4 85总线规范及其在UPS监控系统中的应用 ,并针对负载节点过多或传输距离长的特点 ,提出了一种RS 4 85中继电路。