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RCS20 M:N Redundancy Switch
User Interfaces
4.2.1.4
MODEM MONITOR
Pressing this key brings up a series of menus on the LCD that allow the monitoring of status parameters
for modems connected to the RCS20. This feature is presently not implemented on the RCS20.
4.2.1.5
MODEM TEST
Pressing this key brings up a series of menus on the LCD that allow testing of the modems connected to
the RCS20. This feature is presently not implemented on the RCS20.
4.2.1.6
MODEM ALARMS
Pressing this key brings up a series of menus on the LCD that allow monitoring of alarms for the modems
connected to the RCS20. This feature is presently not implemented on the RCS20.
4.2.2 LCD Front Panel Display
The front panel display is an 8 line by 40-character LCD display. The display is lighted and the brightness
can be set to increase when the front panel is currently in use. The LCD display automatically dims after a
period of inactivity.
The display has two distinct areas showing current information. The bottom row of the display shows the
functions of each of the four soft keys (labeled 'S1', 'S2', 'S3', and 'S4' in Figure 3-1). If a soft key
provides a function, then that function will be displayed just above the corresponding key. If no function is
displayed above a soft key, then there is no function associated with that key, and pressing it will have no
effect. The rest of the display shows current parameter and status information. The LCD display is a
window into a large matrix of switch and modem parameters that can monitored and changed from the
front panel.
The display backlight will extinguish after a programmable delay if no there is no keyboard activity. The
backlight will then turn on whenever a key is pressed. The backlight delay can be adjusted from the
menu.
4.2.3 Reset Alarms Key
This key resets all RCS20 current and latched major and minor alarms.
4.2.4 Module Select Key
This key selects which modem is currently being controlled by the Modem group of keys. This feature is
presently not implemented for the RCS20
4–3
Revision 15
MN-RCS20 and CD-RCS20
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