18 CentreCOM GS970M Series Quick Installation Guide
System LEDs
The System LEDs are described here.
Solid green The port has established a 1Gbps link to a
network device.
Flashing green The port is transmitting or receiving packets at
1Gbps.
Off Possible causes of this state are listed here:
- The SFP transceiver port is empty.
- The SFP transceiver has not established a
link with another network device.
- The LEDs are turned off. To turn on the
LEDs, use the eco-friendly button.
SD LED
Solid green The switch has detected an SD card in the SD
slot.
Flashing green The switch is writing to or reading from the SD
card.
Flashing amber The switch encountered an error with the SD
card.
Off The SD slot is empty or the LEDs are off.
Fault
Flashing red
once
The switch’s fan is failing or has stopped.
Flashing red six
times
The switch is overheating and might shut
down.
Off The switch is operating normally.
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