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Installing the iPSU
(Power Supply Unit)
This chapter provides instructions to install the Intelligent Power Supply Unit (iPSU) in
a protected location and connect it to the i3822V component.
Installation overview
To install the iPSU component, you will do the following:
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The intelligent Power Supply Unit (iPSU) delivers DC power to the i3822V using a
single dedicated pair of 24 AWG (minimum) phone cable. The power supply operates
on 120V AC, 60 Hz power, and supplies 29V DC nominal to the i3822V.
If the power supply unit is equipped with a battery backup, during a temporary AC
power outage, the power source is switched to the battery without interruption of
service. When the AC power is restored, the power source is switched back to the AC
power supply. The switchover between the AC power supply and battery is automatic
and instantaneous.
Chapter 3
"Preparing the installation site" on page 24
"Mounting the power supply unit" on page 25
"Connecting the power cables" on page 27
Installing the iPSU (Power Supply Unit)
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