Allied Telesis AT-GS900/8E - Manual (Page 45)

45
Chapter 3
Troubleshooting
This chapter contains information on how to troubleshoot the switch in the
event that a problem occurs.
Note
If you need further assistance, please contact Allied Telesyn
Technical Support. Refer to “Contacting Allied Telesyn” on page 14.
AT-GS900/8 switch: Check the POWER LED on the front of the switch. If
the LED is off, indicating that the unit is not receiving power, do the
following:
ˆ Ensure that the power cord is securely connected to the power source
and to the AC connector on the back panel of the switch.
ˆ Verify that the power outlet has power by connecting another device to
it.
ˆ Try connecting the unit to another power source.
ˆ Try using a different power cord.
ˆ Verify that the voltage from the power source is within the required
levels for your region.
AT-GS900/8E switch: Check the POWER LED on the front of the switch. If
the LED is off, indicating that the unit is not receiving power, do the
following:
ˆ Ensure that the power adapter is securely connected to the power
source and to the power connector on the back panel of the switch.
ˆ Verify that the power outlet has power by connecting another device to
it.
ˆ Try connecting the unit to another power source.
ˆ Verify that the voltage from the power source is within the required
levels for your region.
Verify that the LINK/ACT LED for each port is ON. If a LINK/ACT LED is
OFF, do the following:
ˆ Verify that the end node connected to the port is powered on and is
operating properly.