- Tyco 711P Optical Smoke Detector is for use in conventional two-wire detection systems, where detectors are normally connected in zones. Each detector samples the ambient air every five seconds and if a fire condition is detected, a signaling current is drawn from the zone causing the Control and Indicating Equipment (fire alarm panel) to provide an alarm response for that zone.he Tyco 711P 516.900.101 is a microprocessor-based, conventional optical detector offering features designed to extend the shelf-life of the detector and reduce installed costs to customers.Tyco 711P 516.900.101 is EN54, MED and IACS approved, making it suitable for land applications as well as Marine.



