Changing A Power Module - ZyXEL Communications ZYWALL USG 2000 Manual

Chapter 51 Troubleshooting
or you forget the administrator password(s), you can reset the ZyWALL to its
factory-default settings. Any configuration files or shell scripts that you saved on
the ZyWALL should still be available afterwards.
Use the following procedure to reset the ZyWALL to its factory-default settings.
This overwrites the settings in the startup-config.conf file with the settings in the
system-default.conf file.
Note: This procedure removes the current configuration.
If you want to reboot the device without changing the current configuration, see
Chapter 50 on page
Make sure the SYS LED is on and not blinking.
1
Press the RESET button and hold it until the SYS LED begins to blink. (This
2
usually takes about five seconds.)
Release the RESET button, and wait for the ZyWALL to restart.
3
You should be able to access the ZyWALL using the default settings.

51.2 Changing a Power Module

The ZyWALL has two power modules. It can continue operating on a single power
module if one fails. The power modules are near the top of the front panel of the
main chassis. Obtain ZyWALL power modules from your local vendor. Use the
following procedure to change a power module.
Make sure that the power module you want to disconnect has the power switch in
1
the off position. You only need to turn off the power module that has failed. The
ZyWALL can continue operating on power from the other power module.
Disconnect the power cord from the power outlet.
2
Disconnect the power cord from the ZyWALL's power module.
3
800
795.
ZyWALL USG 2000 User's Guide