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Chapter 4. Operation
16 ISU 128 User Manual 61202.029L2-1
GETTING STARTED
At power up, the front panel display is in the Current Status mode. This is the
recommended resting place for the display as it shows the current operational
status of the unit. For example, if the ISU 128 is not connected to the network,
the Current Status menu displays ADTRAN ISU 128 Link Down. If the unit
is connected to the network and functioning properly, it displays ADTRAN
ISU 128 Ready. A list of Current Status messages is provided in the appendix
Current Status Messages. Pressing Cancel repeatedly returns the unit to the
Current Status menu. While at the Current Status menu, pressing any key
changes the display to the top of the menu tree.
The menu tree allows for set up and operation of the ISU 128 from the front
panel. The main branches of the menu tree follow:
1. STATUS
2. TEST
3. CONFIG (Configuration)
4. DIAL
Status Buffer
Select 1=STATUS from the top of the menu tree to display the status buffer.
The Up and Down arrows allow viewing of the last fifty status messages gen-
erated during the operation of the unit. The most recent message displays last.
An explanation of Status Buffer Messages can be found in the appendix Status
Buffer Messages. To return to the top of the menu, press Cancel. The buffer can
be cleared by pressing 0.