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Troubleshooting Tip

When diagnosing codes, always check the event history log first. Many trouble conditions are intermittent and tied to environmental factors like temperature or moisture.

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NN:MMM-DDD [custom message] ACK [device type] IN SEC: MXL Trouble Code | Fire Alarm Resource Center

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

supervisory

Siemens MXL

66 views·0 field notes

What This Code Means

A security-related device has been activated, indicating a potential security breach or monitoring event.

Common Causes

1Door contact opening
2Motion sensor activation
3Security tamper switch

Resolution Steps

Check the security zone or device indicated on the display to determine the cause of activation and secure the area.

Manual References(1)

1siemensMXL-IQInstallationp. 7, 69, 34, 47, 74 +5Open

Field Notes

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Related Codes

GROUND FAULT IS PLUSThe system has detected a positive ground fault on the field wiring.AC Fail or BrownoutPrimary AC power is missing or below the brownout level; the System is running on battery backup.GROUND FAULT IS MINUSThe system has detected a negative ground fault on the field wiring.GROUND FAULT IS OKThe system ground fault test has passed and no ground faults are currently detected.[custom message] [device type] IN SUPA condition indicating that a monitored device or system has changed to an off-normal state, which takes priority over security and trouble conditions.

Related Questions

What modules are available to expand the MXL beyond its base configuration, and what is the maximum supported cabinet and loop count?How many addressable devices does the MXL support per SLC loop, and what is the total system point capacity?What are the battery requirements and backup power calculations for the MXL?

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