Most industrial computer systems provide standard RS-232 serial ports. Though widely accepted, RS-232 has limited transmission speed, range, and networking capabilities. The RS-422 and RS-485 standards overcome these limitations by using differential voltage lines for data and control signals, which transparently converts RS-232 signals into isolated RS-422 or RS-485 signal with no need to change any hardware or software. The I-7520 lets you easily build an industrial grade, long-distance communication system using standard PC hardware. 

Features:

• Automatic RS-485 Direction Control
• ESD Protection for the RS-232/422/485 Data Line
• Power Input, +10 ~ +30 VDC
• DIN-Rail
• 3000 VDC Isolation Protection on the RS-485 side
• Transmission Speed of up to 115200 bps
• Operating Temperatures: -25 °C ~ +75 °C