POWER FALLBACK SWITCH - QUICK START GUIDE
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Quick Start Guide
This Quick Start Guide describes the installation procedure for the Power Fallback
Switch. The Power Fallback Switch automatically switches power from a primary
input to a secondary input when power to the primary input is lost or interrupted.
Hardware Installation
Apply Power to the Power Fallback Switch
Refer to the warnings and cautions at the beginning of this guide and the power
rating nameplate on the Power Fallback Switch back panel, and then connect the unit
to two appropriate power sources. For units with detachable power input cables,
connect the power input cables to the power inlets, install the cable keepers, and
then connect the primary power input cable to your primary power supply and the
secondary power input cable to your secondary power supply. Refer to the table in
the "Specifications" section of this Quick Start Guide for information concerning
power requirements and maximum loads.
Notes:
• After connecting your power cables to the Power Fallback Switch,
make certain to secure the cables in order to prevent accidental
disconnection.
• PFBS120 units are designed for switching power input lines that
are typically 120 VAC. If a power input lower than 85 VAC is
connected to a PFBS120, then power switching features will not
function correctly.
• PFBS240 units are designed for switching power input lines that
are typically 240 VAC. If a power input lower than 200 VAC is
connected to a PFBS240 units, then power switching features will
not function correctly.
Operation
When properly installed, the Power Fallback Switch will automatically switch power
from the primary input to the secondary input when the power to the primary input is
interrupted. After switching from primary to secondary, the Power Fallback Switch
will also switch power back to the primary input when power to the primary input
is restored. Note that the "Input Power" LEDs on the Power Fallback Switch front
panel will light to indicate which power input(s) has power.
