STYLE 6 POS. LOOP x: NFS2-640 Trouble Code | Fire Alarm Resource Center
STYLE 6 POS. LOOP x
trouble
Notifier NFS2-640
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What This Code Means
There is an open circuit on the positive side of loop x.
Common Causes
1Open circuit on the positive side of the SLC loop
Resolution Steps
Correct the open circuit condition on the positive side of the loop and press the RESET button. Note that Style 6 and Style 7 are supervised methods, and the panel will drive both ends of the loop in an unsupervised method until the latching trouble is cleared.