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PS120 Power Supply; Complies with the standards of EN 54-4 Fire detection and fire alarm systems - Part 4: Power supply equipment. PS120 supplies energy from AC mains power, or backup batteries, for control and display units of fire detection systems. When AC input from the mains is avaible, Power supply both charges the backup power sources, and supplies energy to the system. PS120 reports AC loss, Backup power loss and earthing fault, via LEDs visually, and with open collector outputs electronically. In Ac Los sor Battery Fault the Error Relay activates.
