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Home --> Fire Alarm Systems
  • General
  • Feature
  • Specification
The 300 series Zone Display Unit is a transparent module directly connected to the Control Panel and requires no external power supply. The ZDU works with all of the 300 series detectors. When a detector goes into Alarm the ZDU responds to the current absorped by disconnecting the line to the Control Panel. The ZDU behaves like a detector in Alarm so that the Control Panel continues to warn of the Alarm and communicates with the detectors in order to obtain the addresses of those detectors in Alarm.
Elecrical Specifications: MINIMUM NOMINAL MAXIMUM UNITS Supply voltage 15 24 31 VDC Standby current --- 80 100 mA Series resistor 270 330 680 W Output impedance --- --- 1 W Reset time--- --- 0.3 S Reset time --- --- 1 S