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RCS20 M:N Redundancy Switch
User Interfaces
4.5.1.1 Changing parameters from the Front Panel
Whenever there is a parameter that can be changed or edited from the front panel, the first
character of the parameter value will highlight with a blinking box. This box is called the cursor,
and the cursor defines what parameter is currently being edited. If there are several parameters on
one screen, two of the soft keys will be labeled <--- and --->. These keys are used to move the
cursor from one parameter to the next, and therefore any of the configuration parameters displayed
on the screen can be edited. The left arrow ( <--- ) moves the cursor to the left, and the right arrow (
---> ) moves the cursor to the right. If the cursor is at the beginning or end of a row containing
several parameters, the cursor will wrap to the opposite side of the display.
Editing a configuration parameter value is accomplished in one of several ways. If the parameter is
numerical, the desired value should be entered from the numeric keys. Occasionally, the numeric
values can be incremented and decremented by pressing soft keys labeled 'UP' and 'DOWN'
respectively. In either case, when all of the numerical parameters have been edited to the desired
values, pressing the ENTER key will execute a load of the parameters into memory, and then
advance to the next screen in the menu tree. Pressing the CLEAR key will not execute a load of
parameters into memory (the original parameter values before editing will be retained), and then
advance to the previous screen in the menu tree.
If a parameter has a non-numeric value, the allowed values for that parameter can be edited by
pressing soft keys with the desired values. In cases where there are multiple parameters shown on
a screen, the values are edited with the soft keys and loaded by pressing the ENTER key, which
also advances to the next screen in the menu tree. Pressing the soft key labeled 'NEXT' or
'PREVIOUS' will abort loading the parameters into memory, and advance to the appropriate screen.
In cases where there is a single parameter shown on a screen, pressing the soft key labeled with
the desired value will immediately load the parameter into memory. In this case, the parameter load
can be aborted by pressing the CLEAR key, which will return to the previous screen, or by pressing
the soft key labeled 'NEXT', which will advance to the next screen in the menu tree.
4.5.1.2 Moving to the Next Screen in a Menu Tree
If the user desires to advance to the next screen in the menu tree, the soft key labeled 'NEXT'
should be pressed. Some submenu screens can only return to a previous screen, in this case a
soft key will be labeled 'RETURN'. In either case, if any numerical parameters are being edited, the
values will not be loaded into memory. When the last screen of a menu tree is reached, advancing
to the next screen will wrap to the first screen of the menu tree.
4.5.1.3 Moving to the Previous Screen in a Menu Tree
If the user desires to advance to the previous screen in the menu tree, the CLEAR key should be
pressed. If any numerical parameters are being edited, the values will not be loaded into memory.
If the clear key is pressed while the first screen of a menu tree is displayed, the previous screen will
wrap to the last screen in the menu tree.
TM056 - Rev. 2.3
4-7
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