The JSHD4-2-AJ-A is an ergonomic three-position device which top part has LEDs, a front button and a top button, and which bottom part is equipped with a cable gland, a PCB with 16 screw connections and an anti-tamper PCB.
Three-position devices are used to allow a limited movement of the machine when the operator is in the dangerous area, for example during troubleshooting, test running and programming.