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NN:MMM-DDD [custom message] ACK [device type] IN ALRalarm

Siemens MXL: NN:MMM-DDD [custom message] ACK [device type] IN ALR

Siemens MXL·0 views·0 field notes

What This Code Means

An initiating device has entered the alarm state, indicating a fire or emergency condition.

Common Causes

  • 1Smoke detection
  • 2Heat detection
  • 3Manual pull station activation

Resolution Steps

Follow emergency procedures, evacuate the building if necessary, and investigate the source of the alarm at the indicated device address.

Manual References(1)

Field Notes

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Related Codes

Pre-alarmA smoke detector has reached a threshold near its alarm point but has not yet reached full alarm status.NN:MMM-DDD [custom message] ACK [trouble type] IN TRBA general system trouble has occurred, indicating a fault that may prevent the system from operating correctly.GROUND FAULT IS MINUSThe system has detected a negative ground fault on the field wiring.Tamper SwitchThis is a security-type message for the tamper switch on the SMB-2 board when the system is selected for UL 1076 operation.GROUND FAULT IS OKThe system ground fault test has passed and no ground faults are currently detected.

Related Questions

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All MXL trouble codesMXL panel page