Nokia IP2255 Installation Guide - Page 98

Replacing a Power Supply

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7 Installing and Replacing Other Components 5. Resecure the two retaining screws on the new fan unit. Replacing a Power Supply The power supplies are located at the rear of the Nokia IP2255 appliance. To hot swap a power supply, make sure you turn off and replace only one power supply at a time. The other power supply must remain on to maintain power to the security platform. Caution To help guard against electrostatic discharge damage, make sure you are properly grounded by using a grounding wrist strap and following the instructions provided with the wrist strap before you handle the components or open the appliance. If you do not have a grounding wrist strap, make sure you are properly grounded before you touch any electronic component. To replace a power supply, you need: „ Physical access to the appliance „ A Phillips-head screwdriver „ Replacement power supply and accompanying documentation Warning To reduce the risk of electrical shock, turn the power off and disconnect the power cord before you remove the power supply from the appliance. Do not reconnect the power cord or turn on the new power supply until it is securely installed in the appliance. Caution When you turn the power supply on, wait at least ten seconds before you turn it off again. Likewise, when you turn the power supply off, 98 Nokia IP2255 Security Platform Installation Guide

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7
Installing and Replacing Other Components
98
Nokia IP2255 Security Platform Installation Guide
5.
Resecure the two retaining screws on the new fan unit.
Replacing a Power Supply
The power supplies are located at the rear of the Nokia IP2255 appliance. To
hot swap a power supply, make sure you turn off and replace only one power
supply at a time. The other power supply must remain on to maintain power to
the security platform.
Caution
To help guard against electrostatic discharge damage, make sure
you are properly grounded by using a grounding wrist strap and
following the instructions provided with the wrist strap before you
handle the components or open the appliance. If you do not have a
grounding wrist strap, make sure you are properly grounded before
you touch any electronic component.
To replace a power supply, you need:
Physical access to the appliance
A Phillips-head screwdriver
Replacement power supply and accompanying documentation
Warning
To reduce the risk of electrical shock, turn the power off and disconnect
the power cord before you remove the power supply from the appliance.
Do not reconnect the power cord or turn on the new power supply until it
is securely installed in the appliance.
Caution
When you turn the power supply on, wait at least ten seconds before
you turn it off again. Likewise, when you turn the power supply off,