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Optional Installation
These connections are optional. Your UPS will function
properly without these connections. Note: SMX3000XLRT2U
shown in all diagrams.
USB and RS-232 Serial
Communications (all models)
Use the included USB cable (see ) and/or 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. Your UPS may feature additional
communications ports; these ports may also be connected
to additional computers which have PowerAlert
Software installed. Consult your PowerAlert manual
for more information.
EPO Port Connection (all models)
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
(select models)
All UPS models come with a robust internal battery
system; select models feature connectors that accept
optional external battery packs (sold separately from
Tripp Lite) to provide additional runtime. Adding
external batteries will increase recharge time as well as
runtime. See battery pack owner’s manual for complete
installation instructions. Make sure 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.
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