精品文献
总线电缆rs485
RS485总线电缆冗余中继器用户手册 (2)
RS485总线电缆冗余中继器用户手册 (2)
rs485电缆制作
Introduction to RS485 RS232 , RS422 , RS423 and RS485 are serial communication methods for computers and devices. RS232 is without doubt the best known interface, because this serial interface is implemented on almost all computers available today. But some of the other interfaces are certainly interesting because they can be used in situations where RS232 is not appropriate. We will conce