Amer Networks SD4P4 - Manual (Page 13)

11
UNDERSTANDING LED INDICATORS
The front panel LEDs provide instant status feedback, and helps
monitor and troubleshoot when needed.
Figure 3. LED indicators of the Switch
System LED
Power: (Power Indicator)
On: The Switch is receiving power.
Off: The Switch is not receiving power.
PoE status LEDs (Port 1 - Port 4)
PoE Status:
Green: A PoE powered device (PD) is connected to the port and
power is being supplied properly.
Red: One of the following problems has occurred:
• PoE power circuit shortage
• Power over current: the current is greater than the PD’s
classification
• Out of range of PoE voltage of 44 - 57 VDC output
Off: No PoE powered device (PD) is connected to the port.