Electronic Detection Mechanism for Better Stability in Non-contact Door Switch Operation • Stable operation reduces Controller errors caused by unstable doors. • Connect up to 30 Non-contact Door Switches with LED indicators to one Controller. • Reversible switch provides flexibility in installation. • Two-color LED indicator enables easier maintenance by identification of door status and cable disconnections. • Complies with ISO 13849-1 (Safety Category 3/PLd). • Both Non-contact Door Switches and conventional Key-type Safety-door Switches can be input to one Controller, saving space. • OFF-delay output provided for stop category 1. • Easily construct partial stop and complete stop systems with the logical AND connection function, using G9SX as the Controller.