Serial Con RS232-20mA - Options & Accessories for Digital Indicators
EP100SC0081XXX - Current Loop Converter
This is a converter for serial communications, RS232C serial to 20mA serial current loop. The converter is passive and transmit only, DB9F RS-232C with +ve, -ve and ground terminals for the 20mA current loop. This provides a digital serial output and does not provide a 4-20mA analogue output.