Troubleshooting
8-3
9820-A2-GB20-20
June 2000
Resetting the Unit and Restoring Communication
You can reset the unit in one of four ways:
H Reset it from the Control menu.
H Cycle the power.
H Reset the configuration options for the COM (Terminal) port, or reload the
factory default settings.
H Set the appropriate MIB object from NMS (see your NMS documentation).
The unit performs a self-test when it is reset.
Resetting the Unit from the Control Menu
Use this procedure to initiate a reset and power-on self-test of the unit.
" Procedure
To reset the unit from the Control menu:
1. From the Main Menu screen, select Control.
2. Select Reset Device and press Enter. The Are You Sure? prompt
appears.
3. Type y (Y
es) and press Enter. The unit reinitializes itself, performing a
self-test.
Resetting the Unit By Cycling the Power
Cycling the power resets the unit. This is an emergency procedure that should be
executed only if the Control menu is inaccessible, and never be executed while
the unit is in use.
H Models 9820, 9820-2M and 9820-8M: Disconnect then reconnect the power
cord.
H Model 9820-45M: Switch off both power supplies then switch on both power
supplies.