The ABB TK503 (1TNE968901R1100) is an original programming cable designed to connect a PC to ABB AC500 programmable logic controllers (PLCs) and related industrial automation equipment. This cable provides a convenient and reliable bridge between a computer's USB port and the RS485 D-Sub 9-pin serial interface commonly found on ABB AC500 CPUs and communication modules.
With a length of 3 meters, the TK503 offers sufficient reach for flexible workstation setup and machine-side programming in industrial environments. It is a genuine, high-quality ABB accessory intended for commissioning, programming, firmware updates, and troubleshooting applications.