Citrix SD-WAN Platforms
supplies for proper operation. The other power supplies serves as a backup. All power supplies must
be of the same type (AC or DC).
Note: If the appliance has only one power supply, you have to shut down the appliance before
replacing the power supply. If the appliance has two power supplies, you can replace one power
supply without shutting down the appliance, provided the other power supply is working , and
if the appliance has four power supplies, you can replace one or two power supplies without
shutting down the appliance, provided the other two power supplies are working.
To install or replace an AC power supply on a Citrix SD-WAN appliance:
1. Align the semicircular handle perpendicular to the power supply. Loosen the thumbscrew and
press the lever toward the handle and pull out the existing power supply.
2. Carefully remove the new power supply from its box.
3. On the back of the appliance, align the power supply with the power supply slot.
4. Insert the power supply into the slot and press against the semicircular handle until you hear
the power supply snap into place.
5. Connect the power supply to a power source. If connecting all power supplies, plug separate
power cords into the power supplies and connect them to separate wall sockets.
Note: Citrix SD-WAN appliances emit a high-pitched alert if one power supply fails or if you con-
nect only one power cable to an appliance in which two power supplies are installed. To silence
the alarm, press the small red button on the back panel of the appliance. The disable alarm
button is functional only when the appliance has two power supplies.
Replace a DC power supply
Most Citrix SD-WAN platforms can accommodate two power supplies. Some platforms can accommo-
date four power supplies. All Citrix SD-WAN appliances function properly with a single power supply,
except the appliances that can accomodate four power supplies. These appliances need two power
supplies for proper operation. The other power supplies serves as a backup. All power supplies must
be of the same type (AC or DC).
Note: If the appliance has only one power supply, you have to shut down the appliance before
replacing the power supply. If the appliance has two power supplies, you can replace one power
supply without shutting down the appliance, provided the other power supply is working , and
if the appliance has four power supplies, you can replace one or two power supplies without
shutting down the appliance, provided the other two power supplies are working.
To install or replace a DC power supply on a Citrix SD-WAN appliance:
1. Loosen the thumbscrew and press the lever towards the handle and pull out the existing power
supply.
2. Carefully remove the new power supply from its box.
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