OPEN: MS-9600 Trouble Code | Fire Alarm Resource Center
OPEN
trouble
Fire-Lite MS-9600
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What This Code Means
This condition indicates an open circuit on an addressable device (smoke detector, monitor module, or control module) connected to the Signaling Line Circuit (SLC) loop.
Common Causes
1Broken SLC loop wiring
2Loose wire connection at a device terminal
3Missing addressable device
4Incorrectly wired SLC loop
Resolution Steps
Identify the addressable device reporting the trouble on the LCD display. Inspect the SLC loop wiring at that device's address for breaks, loose connections, or missing components. Ensure all devices are properly connected and the loop integrity is maintained.
