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Chapter 3. O peration
3-4
ESU 120e User Manual 61200420L1-1
Module Status
Operation keys
Name Description
OK
(green) Indicates the operation is in the normal mode and no
errors have been detected.
Te s t
(yellow) Indicates that one of the interfaces is operating in a test
mode. This includes a self-test or a test loopback.
When lighted, this LED also indicates that normal data
flow is not occurring in at least one of the module ports.
Alarm
(red) Indicates an alarm condition has been detected. When
the alarm condition is no longer valid, the OK LED
activates (turns on). To view an alarm condition, select
the active alarm menu item or select Alarm by pressing
Shift 8
. If the alarm conditions have been corrected, the
alarm which caused the activation of the Alarm LED
can be viewed under the Unit History menu.
Name Description
Copy
Used in the TS0 mapping menu operations to copy the
last data entered into the current TS0. This key operates
without pressing the
Shift
key.
Home
Returns home to the Main menu from any menu
location.
Alarm
Used as quick access to the active alarm display menus.
This can be activated while any other menu item is in
use. When the Alarm menu is exited, the unit returns to
the location of the same menu that was active when
Alarm was selected.
Clear
Used in various menus to clear data/result fields.