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Trouble Type In Trb
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NN:MMM-DDD [custom message] ACK [trouble type] IN TRB: MXL Trouble Code | Fire Alarm Resource Center
NN:MMM-DDD [custom message] ACK [trouble type] IN TRB
trouble
Siemens MXL
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0 field notes
What This Code Means
A general system trouble has occurred, indicating a fault that may prevent the system from operating correctly.
Common Causes
1
Open circuit in field wiring
2
Short circuit in field wiring
3
Module communication failure
4
Power supply fault
Resolution Steps
Identify the specific trouble type and device address on the display, then inspect the associated wiring or hardware for faults.
Manual References
(1)
1
siemens
MXL-IQ
Installation
p. 7, 69, 34, 47, 74 +5
Open
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Field Notes
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Related Codes
GROUND FAULT IS PLUS
The system has detected a positive ground fault on the field wiring.
AC Fail or Brownout
Primary AC power is missing or below the brownout level; the System is running on battery backup.
GROUND FAULT IS MINUS
The system has detected a negative ground fault on the field wiring.
GROUND FAULT IS OK
The system ground fault test has passed and no ground faults are currently detected.
[custom message] [device type] IN SUP
A 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?
