ESP operates using a relatively low transmission rate enabling reliable, error free communication over long distances using the many industry standard fire cables.

Overall polling rate is approx. 7.5 seconds per loop. A built in Interrupt system ensures fast response from devices as required by today's systems and standards. An interrupt is generated when a call point operates, by a sensor when the smoke density exceeds it's threshold level or by a digital input change. 

The system can guarantee finding the interrupting device from any address on the loop within 1.5 seconds.