CSA 471-A is an electronic analysis board for rope contacts, designed for monitoring anti-theft sensors for roller shutters and rolling doors. It analyzes the received pulses and activates an alarm lasting more than 0.5 seconds when the programmed threshold of 1 to 15 pulses is reached or in the event of a loss of connection with the sensor. Ideal for intrusion detection and perimeter protection systems, it has compact dimensions of 55 × 37 × 20 mm. Eaton-CSA