Tripp Lite 2-9USTAND USB and RS-232 Serial, Communications all models, select models, this port

Installation (continued)
Optional Connections (continued)
2 USB and RS-232 Serial
Communications (all models)
Use the included USB cable (see		2a ) and/or
DB9 serial cable (see	2b ) to	connect the
communication port of your computer to the
communication port of your UPS. Install on
your computer the Tripp Lite PowerAlert
Software appropriate to your computer's			2a Your model may differ.
operating system. Your UPS may feature
additional communications ports; these ports
may be connected to additional computers that
have PowerAlert Software installed. Consult
your PowerAlert manual for more
information.
3 EPO Port Connection (all models)			2b Your model may differ.
This optional feature is only for those
applications that 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 3a ) to a user-
supplied normally closed or normally open
switch according to the circuit diagram (see
3b ). The EPO port is not a phone line surge			3a Your model may differ.
suppressor; do not connect a phone line to
this port.
4 External Battery Connection			4-5
(select models)
Check to ensure that the external batteries you
are connecting match the voltage listed on your
UPS's battery connector. All UPS models
come with a robust internal battery system;
select models feature connectors that accept			3b
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 the 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			48V/26A
not connect or disconnect battery packs when
the UPS is running on battery power.			4 Your model may differ.

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