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Connection
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Hardwire the UPS’s input to utility

power and its output to its load.

Consult a qualified electrician and follow all
applicable electrical codes and requirements.
Your UPS is designed to support only computer
equipment. You will overload your UPS if you
connect household appliances, laser printers
or surge suppressors to the UPS’s output.
• Turn utility power off before connecting it to
the input of your UPS.
• Connect the incoming ground wire to the
GROUNDIN (green & yellow) terminal.
• Connect the outgoing ground wire to the
GROUNDOUT (green & yellow) terminal.
• Connect the incoming hot wire to the HOT
IN (brown) terminal.
• Connect the incoming neutral wire to the
NEUTRALIN (blue) terminal.
• Connect the outgoing hot wire to the HOT
OUT (black) terminal.
• Connect the outgoing neutral wire to the
NEUTRALOUT (white) terminal.
• Turn utility power on. Your UPS will perform
a self-test. The UPS will enter ON mode. The
LINE POWER “ ”LED will be on.
Your UPS is now ON and its AC output
is active.
Your UPS will function properly without these
connections.

DB9 Port Connection

Using the DB9 cable provided, connect a
DB9 port on your computer to a DB9 port on
your UPS. Install Tripp Lite power protection
software. If your UPS features 2 DB9 ports,a
second computer with a DB9 port may be
connected if desired.
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200307055 93-2171 OM500RMX Owner’s Manual Revision.qxd 7/11/2003 10:14 AM Page 4