
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.