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9
Basic Operation
continued
Other UPS Features (Rear Panel)
Communications Ports (USB or RS-232): These ports connect your UPS to any
workstation or server. Use with Tripp Lite’s PowerAlert Software and included
cables to enable your computer to automatically save open files and shut down
equipment during a blackout. Also use PowerAlert Software to monitor a wide
variety of AC line power and UPS operating conditions. Consult your
PowerAlert Software manual or contact Tripp Lite Customer Support for more
information. See “Optional Installation” section for installation instructions.
Relay Contact Interface Port: This female DB9 port sends contact-closure
signals to indicate line-fail and low battery status. See “Optional Installation”
section for installation instructions.
EPO (Emergency Power Off) Port (Select Models Only): Your UPS features
a EPO port that may be used to connect the UPS to a contact closure switch to
enable emergency inverter shutdown. See Optional Installation.
Accessory Slot: Remove the small cover panel from this slot to install optional
accessories to remotely monitor and control your UPS. Refer to your accessory’s
manual for installation instructions. Contact Tripp Lite Customer Support at
(773) 869-1234 for more information, including a list of available SNMP, network
management and connectivity products.
Power Sensitivity Adjustment: This dial is normally set fully counter-clockwise,
which enables the UPS to provide maximum protection against waveform
distortions in its AC input. When such distortion occurs, the UPS will normally
switch to providing sine wave power from its battery reserves for as long as the
distortion is present. In areas with poor utility power or where the UPS’s input
power comes from a backup generator, chronic waveform distortion could
cause the UPS to switch to battery too frequently, draining its battery reserves.
You may be able to reduce how often your UPS switches to battery due to
moderate waveform distortion by experimenting with different settings for this
dial. As the dial is turned clockwise, the UPS becomes more tolerant of
variations in its input power’s AC waveform. NOTE: The further the dial is
adjusted clockwise, the greater the degree of waveform distortion the UPS will
allow to pass to connected equipment. When experimenting with different
settings for this dial, operate connected equipment in a safe test mode so that the
effect on the equipment of any waveform distortions in the UPS’s output can be
evaluated without disrupting critical operations.
External Battery Connector (Select Models Only): Use to connect Tripp Lite
external battery packs for additional runtime. Refer to instructions available with
the battery pack for complete connection information and safety warnings.
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