Description
Four different monitor modules are available for Johnson Controls’ intelligent control panels for a variety of applications. Monitor modules supervise a circuit of dry-contact input devices, such as conventional heat detectors and pull stations, or monitor and power a circuit of two-wire smoke detectors. M300MJ(A) is a standard-sized module (typically mounts to a 4″ [10.16 cm] square box) that supervises either a Style D (Class A) or Style B (Class B) circuit of dry-contact input devices.
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