Tripp Lite 3U Connection Optional, DB9 Port Connection, USB Port Connection, EPO Port Connection

Connection (Optional)

Your UPS will function properly without these connections.

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DB9 Port Connection

Using the DB9 cable provided, connect a DB9 port on your computer to a DB9 port on your UPS. On the computer, install the Tripp Lite power protection software appropriate to its operating system. A second computer with a DB9 port may be connected to the second DB9 port if desired.

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USB Port Connection

Using the USB cable provided, connect a USB port from a computer to a USB port on your UPS. On the computer, install the Tripp Lite power protection software appropriate to its operating system. A second USB computer may be connected to the second USB port if desired.

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EPO Port Connection

Using the RJ11 cable provided, connect the Emergency Power Off (EPO) port of your UPS to a user-supplied normally closed or normally open switch according to the circuit diagram below. The EPO port is not a phone line surge suppressor; do not connect a phone line to this port.

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(UPS will turn off if EPO cord is cut or EPO plug is disconnected)

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EPO Circuit Diagrams

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