F5 8400, User Manual

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Operating the LCD Panel
Platform Guide: 8400 and 8800 3 - 7
Options menu
You can use the Options menu to adjust the display properties of the LCD
panel. The following table, Table 3.4, lists the options available on the
Options menu.
Option Description
Heartbeat Use the Check button to turn on (checked) or off
(unchecked) the heartbeat displayed on the LCD
screen. This heartbeat displays if the SCCP is running
on the system. This heartbeat does not affect the
failover mechanism of the system.
Contrast Use the Left and Right arrow keys on the LCD to set
the contrast of the LCD.
On Brightness This setting provides the ability to adjust the LCD
backlight brightness.
Off Brightness This setting controls the brightness of the LCD panel
when the backlight is off. Use the Left and Right arrow
keys to set the brightness of the LCD panel.
Table 3.4 The Options menu