Interface I/O: M720E Dual Input Module

main image


The M700 series modules are designed for use with any NOTIFIER protocol fire alarm control panel and include selectable loop isolation in every device.

The M710E and M720E provide supervision of one or two input circuits respectively from external devices; the M721E also provides an unmonitored single pole volt-free changeover contact for external devices.

All modules feature a built-in short circuit isolator. Input channels are capable of both latched and analogue supervision: there are three separate latched states, normal, open circuit and combined alarm/short. The analogue supervision continuously monitors the supervised circuit, returning a signal proportional to the circuit resistance.