Watchguard SSL 1000 Hardware Manual page 28

Using the LCD interface in Default Mode
Unless you specifically put your WatchGuard SSL device in
Safe Mode, it automatically boots into Default Mode. It
uses the device software to operate.
You can use the four-button keypad to see information
about the SSL device on the LCD display. In Default Mode,
press the buttons to move around the device menu. Use
the Left and Right buttons to move through the list of
categories. To see information in a category, use the
Up and Down buttons to move up and down through
the menu.
Default Mode shows:
Hardware Monitoring
8
Up Button
This button lets you move up in a group of menu
entries.
Down Button
This button lets you move down in a group of
menu entries.
SSL device serial number
CPU temperature
CPU temperature and the system temperature
CPU fan status
Case cooling fan speeds for the three device
different fans
Voltage
CPU core voltage, battery voltage, and 3.3V
power supply voltage
Uptime
Time interval since the device was last restarted