RS-422中文资料GRAYHILL数据手册PDF规格书

General Description

The 72-CNV-XX family of converters offer a flexible and reliable solution to the challenge of interfacing devices conforming to different serial communication standards. Grayhill converter products are designed for industrial environments. All communication lines have transient protection which other commercially available converters lack. The converters allow an RS-232 device (ie. PCs, PLCs, Embedded Controllers) to communicate reliably over long distances to multiple devices utilizing the RS- 422/485 standard. Reliability is an inherent benefit of the differential mode communication of RS- 422/485.

FEATURES

• Selectable RTS operation for 2 wire applications

• Transient Protection on the RS-422/485 Lines

´ On-Board Power Supply With Jumper Selectable 110/220 Vac Operation

• Optical Isolation Between RS-232 and RS422/485

• DIP Switch Selectable DTE/DCE Setting

• Multiple Mounting and Connector Options