Watchguard Firebox M4600 Hardware Manual page 13

Rear View
Rear view of the Firebox M4600.
Cooling fans
The fans decrease the internal temperature of the device. The device adjusts the fan speed based on
the external temperature and device CPU load.
AC receptacles
Each AC receptable accepts a detachable AC power cord supplied with the Firebox. Each power
supply is a WatchGuard standard auto-sensing AC power supply.
Power Switch
Controls the power supplied to the device. The power switch activates both power supplies.
Replaceable power supplies
There are two power supplies on the Firebox M4600, each with a power indicator at the top. For
instructions to install a replacement power supply, see "Power Supply Installation" on page 22
Power Indicator color
Green flashing
Green solid
Red flashing
Not lit
Alarm reset button
When the Firebox is powered on, if either power supplies fails or is not connected to a power source,
an audible alarm sounds. To silence the alarm, press the alarm reset button, located to the left of the
power supplies. After you silence the alarm the indicator for the failed power supply flashes red.
Alarm reset
Hardware Guide
Power Supply Status
Power is connected to at least one power supply, device is powered off
Power is connected, device is powered on
Power is not connected or power supply failed, device is powered on.
Power is not connected, device is powered off.
Power indicators
Hardware Specifications
9