Redundant Systems Print

Source: Shifting Rocks; Background info

Security systems on stations are all-in-one, monitoring room occupancy, ambient temperature and humidity, and the gas mix from environmental control. It can be set to go on alert for various stimuli, and contains several redundant systems to ensure that an interrupt on one line does not prevent a problem being reported. Small pieces of radioactive material which are sensitive to various stimuli are an integral part of such systems.