IBM WebSphere DataPower XC10 Installation Manual page 26

Battery
The appliance is equipped with a CR2 three-volt lithium battery. The battery
cannot power the appliance. The appliance must be connected to active AC power
sources for the appliance to process transactions. The battery maintains the
following internal components only:
v The real time clock
v Static RAM-based memory, that contains various global parameters which
Attention: Complete power failure (no AC power to the appliance with a missing
or depleted battery) for seven days renders the appliance inoperable by activating
the intrusion switch. After seven days, you might need to return the appliance to
IBM to have the intrusion switch reset.
Leave the appliance connected to active AC power sources. Do not turn off the
appliance when the battery needs to be replaced.
Power switch
The power switch is the toggle that either turns on power to the appliance or turns
off power to the appliance. When the toggle is in the ON position, the power is
turned on. When the toggle is in the OFF position, the power is turned off.
Fan modules
The appliance includes two fan modules. Each fan module holds four individual
fan motors. If one fan motor fails, you must replace the entire fan module to
maintain the required air flow.
The fans should normally operate between the cold chassis speeds and maximum
speeds. The failure threshold is set to a speed that is 20% lower than the cold
chassis speed.
Table 4 lists the speeds for the front and rear fans in revolutions per minute (RPM)
on the appliance.
v The front fans are five-blade fans.
v The rear fans are four-blade fans.
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IBM WebSphere DataPower XC10: Installation Guide
include the current date and time for the appliance
Table 4. Fan speeds in RPM
Minimum
Front 2900
2300
Rear
Cold chassis Maximum
5280 16100
4880 12400
Failure
threshold
2000
2000