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Optional Installation
These connections are optional. Your UPS will function
properly without these connections.
USB and RS-232 Serial
Communications
Use the included USB cable (see ) and DB9 serial
cable (see ) to connect the communication port on
your computer to the communication port of your
UPS. Install on your computer the Tripp Lite
PowerAlert Software appropriate to your computer’s
operating system.
EPO Port Connection
This optional feature is only for those applications
which require connection to a facility’s Emergency
Power Off (EPO) circuit. When the UPS is connected
to this circuit, it enables emergency shutdown of the
UPS’s inverter.
Using the cable provided, connect the EPO port of
your UPS (see ) to a user-supplied normally closed or
normally open switch according to the circuit diagram
(see ). The EPO port is not a phone line surge sup-
pressor; do not connect a phone line to this port.
External Battery Connection
Your UPS comes with a robust internal battery sys-
tem; external batteries are needed only to extend run-
time. Adding external batteries will increase recharge
time as well as runtime.
The illustration (see ) shows the location of your
UPS’s External Battery Connector, where you will
insert the battery pack cable. Complete installation
instructions for your battery pack appear in the battery
pack owner’s manual. Make sure that cables are fully
inserted into their connectors. Small sparks may result
during battery connection; this is normal.
Do not connect or disconnect battery packs when the
UPS is running on battery power.
If you connect any external batteries, set the Battery
Charge Level Switches (see ) to the down position.
This will increase your UPS’s charger output so that
the additional batteries charge faster.
Caution! DO NOT set the Battery Charge Level
Switches to the down position without an external
battery connected. There is a risk of damaging the
UPS’s internal battery system.
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