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RS-232 (DB9)
3.5 Communications
Communication Ports (USB and/or RS-232):
These ports connect
the UPS system to a computer. Use with Tripp Lite’s PowerAlert
software and included cabling to allow the computer to
automatically save open files and shut down during a blackout. Also
use PowerAlert software to control UPS system load banks and
monitor a wide variety of AC line power and UPS system operating
conditions. See
Section 2.4: Optional Connections
for cable
connection instructions. Refer to the PowerAlert documentation for
software installation instructions.
The RS-232 port can also be used as a contact closure port. The
port’s numbered pin assignments are shown in the RS-232 (DB9)
illustration at left. If the battery charge level is low, the UPS system
will bridge pins 1 and 5. If utility power fails, the UPS system will
bridge pins 8 and 5. To shut down the UPS system remotely, short
pin 3~pin 9 for at least 3.8 seconds.
EPO (Emergency Power Off) Port:
The UPS system has an EPO
port that may be used to connect the UPS system to a contact
closure switch to enable emergency UPS system shutdown. See
Section 2.4: Optional Connections
for more information. If the
unit has been shut down due to an EPO event, it will be necessary
to disconnect the unit from utility power to reset the unit. After
re-connecting to utility power, see
Section 2.3 Installation
for
start-up instructions.
USB
3. Operation
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