3M DB9 Female to 4Pin Mini DIN MD4 RS232 Serial Communication Cable, Dedicated HMI PLC Wire for Estun ESV Touch Screen & Estun EP PLC

This 3-meter RS232 serial communication cable is professionally engineered to establish stable data connection between Estun ESV series touch screens and Estun EP series PLCs. One end is a standard DB9 female connector, while the other end adopts a 4Pin Mini DIN MD4 plug with dedicated pin assignment matching Estun equipment communication protocols. The multi-shielded internal wiring effectively blocks signal interference generated by servo motors and other industrial machinery, maintaining smooth real-time parameter exchange, command transmission and status feedback over 3-meter long distance. The flexible wear-resistant outer PVC jacket fits neatly inside electrical control cabinets and mechanical equipment layouts. No soldering or wiring modification is needed; simply plug two ends into corresponding ports of touchscreen and PLC to complete the communication link, widely applied in automated production lines, servo control machinery and industrial equipment debugging.