Siemens · IQ-400 Access Control Systems
For various LED arrays on the Siemens IQ-400 (e.g., SAM Board LEDs), an off state indicates that the associated circuit is operating normally and is in a secure condition.
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No action is needed; this is a normal status for the circuit.
If an alarm or activity is expected, verify the physical state of the associated sensor or input.
Check the system's overall status in the software interface for any discrepancies.