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ACS FAULT
trouble

Fire-Lite MS-9200UDLS

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What This Code Means

Communication failure with an ACS Annunciator device.

Common Causes

  • 1Wiring fault on the ANN-bus
  • 2Incorrect annunciator address
  • 3Loss of power to the annunciator

Resolution Steps

Check the ANN-bus wiring for opens or shorts. Verify that each annunciator has a unique and correct address programmed.

Manual References(3)

Field Notes

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Related Codes

NAC 3 FAULTA fault condition (open or short) has been detected on Notification Appliance Circuit 3.COMM FAULT 1The communicator failed to successfully transmit a report to the central station using line 1.TELCO LINE 1The panel has detected a loss of voltage or failure on telephone line 1.COMM FAULT 1 / COMM FAULT 2Indicates a communication failure between the panel's internal Digital Alarm Communicator/Transmitter (DACT) and the central station.NAC 4 FAULTA fault condition (open or short) has been detected on Notification Appliance Circuit 4.

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All MS-9200UDLS trouble codesMS-9200UDLS panel page