Unlike most existing fire detection communication protocols each ESP message transmission incorporates a checksum which provides comprehensive error checking. This, together with acknowledgement handshaking for output commands, makes ESP immune to noise and other communication problems such as loop crosstalk, thereby eliminating false alarms due to data corruption. 

Any persistent data corruption problems that occur are processed by the system as a communication fault and can be logged for future investigation, they are not logged as a device fault and will not create false alarms. The system will continue to communicate and operate reliably under such conditions.