Detectomat M4-RS232iso-Module Galvanically Isolated Serial Interface Module

The M4-RS232iso-Module is an interface unit that provides the fire alarm control unit with a RS-232 serial port and galvanically isolates the line. Isolation prevents interference resulting from ground potential differences between the control unit and the external device; this is precisely where it differs from its RS-485 counterpart. It serves in installations where printers, recording units, or computers are connected. Maintaining clean communications ensures event records are kept complete.