Watchguard Firebox SSL Core Hardware Manual page 14

The photograph below shows a close-up of the left side of the
indicator panel. From the left, the indicators are as follows:
Front Panel Display
The LCD screen displays Firebox SSL status information.
Use the buttons to change the information that
appears.
LCD Console Buttons
LCD buttons are used to view information on the
Firebox SSL. See the Firebox SSL VPN Gateway
Administration Guide for more information.
Power
A yellow LED (light-emitting diode) indicates that the
power is on.
Arm/Disarm
The Arm/Disarm LED lights green when the device is
working, and red when it is not working.
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