If you find any problem, please take the following steps to check.
LED
The POWER LED (Power) is not lit.
Is the power plug connected?
Check that the power plug is firmly connected, so the connection is not loose at
The SD CARD LED is not lit.
Is the SD card installed?
Check that the SD card
the power port.
is firmly inserted.
If the STATUS LEDs are blinking orange
If the STATUS LEDs are blinking green
Is the Ethernet Switch being used at a temperature between 0 and 50
℃
?
Check whether the loops have occurred, since this is an indication that one or more
ports are within 3 days after loop resolution.
17
Troubleshooting
Use the Ethernet Switch in its operating temperature range.
If used at a temperature out of the operating temperature range, STATUS LED
blinks in orange and indicates abnormality.
Communication Failure
Is the UTP/fiber cable connected to the correct port?
Are the SFP modules complied with the same standard each other?
Is the fiber cable correct the fiber mode (single or multi)?
Are the communication speed and mode settings correct?
If the communication mode signal cannot be properly obtained, the Ethernet Switch
operates in half-duplex mode. Check the auto negotiation setting again.
Do not fix the speed/duplex mode of the connected terminal to full-duplex mode.
Attempt to disable “EEE conforming to IEEE802.3az (LPI)” function at target port.
Are the equipment linked up?
If Embedded power-saving mode is set to "Full", change it to "Half" or "Disabled".
Is the device whose communication mode fixed to half-duplex mode or full-duplex
mode connected to ports 17 to 20?
Ports 17 to 20 do not link up with devices in fixed mode.
Connect the device to ports 1 to 16 or enable auto negotiation of the device you
want to connect.
Is the usage rate of the network to which this Ethernet Switch is connected excessively
high?
Try separating this
Ethernet Switch from the network.
