At-Pwr10 Ac Power Supply; At-Pwr11 Dc Power Supply - Allied Telesis AT-8400 Series Reference Manual

Troubleshooting
AT-PWR10 AC
Power Supply
AT-PWR11 DC
Power Supply
94
Use the following guidelines to troubleshoot the AT-PWR10 AC Power
Supply:
❑ Check that the power cord is securely connected to the power
connector (at rear of the chassis) and to an appropriate power
source.
❑ Verify that the power outlet has power by connecting another
device to it.
❑ Try connecting the power supply to another power source. Or, use
a new power cord. Refer to
❑ Check that the power cord is inserted into the IEC connector that
corresponds to the slot of the installed power supply. For
example, if the power supply is installed in slot Power A, then plug
the power cord into PWR A at the rear of the chassis.
❑ Remove all the line cards from the chassis, except the
management card. It may be that one of the line cards needs
repair and it is preventing the power supplies from coming up. If
the power supplies continue to have OFF POWER and FAULT
LEDs, then you may need to replace either the power supplies or
the management card.
Use the following guidelines to troubleshoot an AT-PWR11 DC Power
Supply:
❑ Make sure the wires are connected to the correct terminals. Refer
to Powering on a DC Chassis
❑ Remove all the line card from the chassis, except the management
card. It may be that one of the line cards needs repair and it is
preventing the power supplies from coming up. If the power
supplies continue to have OFF POWER and FAULT LEDs, then you
may need to replace either the power supplies or the
management card.
❑ Use the unused DC terminal block as the power input. If the other
DC Terminal block is being used and it is working, then the Power
Entry Module for the chassis may have failed or blown a
production fuse. In this case, call Technical Support.
If the POWER LED is OFF and the FAULT LED is ON, do the following:
❑ Check that the power supply is firmly seated in its slot.
❑ Check that there is enough room around the chassis for
ventilation.
Powering on an AC Chassis
on page 86.
on page 85.