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NAC Fault: MS-9600 Trouble Code | Fire Alarm Resource Center
NAC Fault
trouble
Fire-Lite MS-9600
78 views
·
0 field notes
What This Code Means
A problem has been detected on one of the Notification Appliance Circuits.
Common Causes
1
Open circuit in NAC wiring
2
Short circuit in NAC wiring
3
Missing or incorrect 4.7K ohm End-of-Line resistor
Resolution Steps
Check NAC wiring for continuity and shorts. Verify that a 4.7K ohm EOL resistor is installed at the last device on the circuit.
Manual References
(6)
1
fire-lite
MS-9600LS and MS-9600UDLS
Installation
2015
p. 109
Open
2
fire-lite
MS-9600
Datasheet
2007
Open
3
fire-lite
MS-9600
Datasheet
2001
Open
Show 3 more references
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Field Notes
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Related Codes
ACTIVE SUPERVISORY
A condition indicating a state that needs attention but is not an alarm, such as a sprinkler valve tamper condition.
DISABL
Indicates that a zone, NAC, detector, or module has been temporarily disabled in programming by the user.
AC Power
The control panel has lost its primary 120VAC or 240VAC power source.
Charger Fault
The internal battery charging circuit is not functioning correctly.
Duplicate Address
The system has detected more than one device sharing the same SLC address.
Related Questions
How do I add a remote annunciator to the MS-9600?
What does 'SLC Open Fault' mean on the MS-9600 and how do I clear it?
What communicator options are available for the MS-9600 — does it have a built-in DACT?
