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Notification troubletrouble

Silent Knight 5820XL: Notification trouble

Silent Knight 5820XL·1 view·0 field notes

What This Code Means

A fault (open or short) has been detected on a Notification Appliance Circuit (NAC).

Common Causes

  • 1Open circuit in NAC wiring
  • 2Missing end-of-line resistor
  • 3Short circuit in NAC wiring

Resolution Steps

Check NAC wiring for continuity and proper EOL resistor installation. Inspect for shorts in the notification appliance string.

Manual References(4)

Field Notes

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Related Codes

SLC Class A supervision lostThe panel has lost the return path for a Class A SLC loop configuration.Short circuit detected on SLC communication loopA short circuit has been detected on the Signaling Line Circuit wiring.Printer offlineThe system printer is not communicating with the control panel.DBL ADDRAn address has been assigned to more than one detector on the SLC loop.GROUND FAULTAn earth ground fault occurs when the panel senses an unexpected flow of current from one or more of its terminals to the earth connection (Terminal 2).

Related Questions

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