Silk screen name

LED color

Status

Description

PWR

green

Always bright

Indicates that the power supply status of the board is normal

Off

Indicates that the board is not powered or is powered abnormally

RUN

green

Slow flash

Indicates that the CPU of the board is in normal operation

Fast flash

Indicates that the CPU of the board is in the initialization upgrade and can not be removed or restarted

ALM

red

Always bright

Indicates that the board has an alarm

Off

Indicates that there is no alarm on this board

GE[1:4]

green

Always bright

Indicates that the current GE port data link has been established (Link)

Flashing

Indicates that the current GE port has data transceiver (ACT)

Off

Indicates that the current GE port is not connected