Installation and configuration 21
b. Click Scan for hardware changes to refresh the screen and display the changes.
Connecting the USB communications port
NOTE: This port is only used for firmware upgrades. For additional information, see "Updating
the UPS firmware (on page 43)."
Connecting the REPO port
WARNING: The pins on the REPO port are polarity sensitive. Be sure to verify polarity while
connecting the REPO port.
WARNING: To meet the requirements stated in NEC (NFPA 70) Articles 645-10 and 645-11, a
UPS installed in a computer equipment room must be connected to a REPO circuit.
IMPORTANT: The remote switch must be in the Off (open) position to enable power to the output
receptacles.
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