Citrix ADC MPX
For information about the Citrix Web App Firewall platforms, see the
.
Field replaceable units
July 23, 2019
Citrix ADC field replaceable units (FRU) are ADC components that can be quickly and easily removed
from the appliance and replaced by the user or a technician at the user’s site. The FRUs for a Citrix ADC
appliance include DC or AC power supplies, solid-state or hard-disk drives, and a direct attach cable
(DAC).
Note
: The solid-state or hard-disk drive stores your configuration information, and it must be restored
from a backup after the unit is replaced.
Power supply
For appliances containing two power supplies, the second power supply is optional but recom-
mended. Some appliances can accommodate four power supplies, and require two power supplies
as a bare minimum for proper operation. As a best practice, plug in all the power supplies for
redundancy.
The appliance ships with a standard power cord that plugs into the appliance’s power supply and a
NEMA 5–15 plug on the other end for connecting to the power outlet on the rack or in the wall.
For power-supply specifications, see
.
Note: If you suspect that a power-supply fan is not working, see the description of your platform.
On some platforms, what appears to be the fan does not turn, and the actual fan turns only when
necessary.
On each power supply, a bicolor LED indicator shows the condition of the power supply.
Electrical safety precautions for power supply replacement
• Make sure that the appliance has a direct physical connection to earth ground during normal
use. When installing or repairing an appliance, always connect the ground circuit first and dis-
connect it last.
• Never touch a power supply when the power cord is plugged in. As long as the power cord is
plugged in, line voltages are present in the power supply even if the power switch is turned off.
For the complete list of safety precautions, see
Safety, Cautions, Warnings, and Other Information
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