Tripp Lite Audio/Video Pure Sine Wave UPS System - Manual (Page 9)

9
Rear Panel continued
AC Receptacles (Varied by Model): These 15-, 20- and 30-amp receptacles
provide your connected equipment with pure sine-wave AC output from the
AC line during normal operation and from battery power during blackouts and
severe brownouts. Power provided at these outlets is filtered to protect
connected equipment against damaging surges and line noise. The receptacles
are divided into numbered load banks, as labelled on the unit. Using
PowerAlert software and cabling, load banks one and two may be individually
turned off and on from a remote location, allowing users to reset or reboot
connected equipment.
Phone/Network Line Surge Suppression Jacks: If your UPS is equipped
with these jacks, they will protect connected equipment against surges over a
phone or network line. Connecting your equipment to these jacks is optional;
your UPS will work properly without this connection. For connection
instructions, see “Optional Connections” in the Installation section.
Not compatible with PoE (Power Over Ethernet) applications.
Communications Ports: These ports connect your UPS to any Media Center
PC or home automation system. Use with Tripp Lite’s PowerAlert Software
and included cables to enable your Media Center PC, home automation system
or server to automatically save system settings 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 “USB and RS-232 Serial Communications” in the “Optional
Connections” section for installation instructions.
The DB9 port can be used to monitor and control your UPS using either RS-
232 or dry contact protocols.
RS-232 communications are complex but easy to implement by using a DB9
cable to connect the UPS to a computer with Tripp Lite PowerAlert Software
installed.
Dry contact communications are simple, but some knowledge of electronics is
necessary to configure them. The DB9 port's pin assignments are shown in the
diagram at the left.
Units with both USB and DB9 ports: If the UPS battery is low, the UPS
sends a signal by bridging pins 1 and 5. If utility power fails, the UPS sends a
signal by bridging pins 8 and 5. To shut the UPS down remotely, short pin
3~pin 9 for at least 3.8 seconds.
Units with DB9 ports only: If the UPS battery is low, the UPS sends a signal
by bridging pins 1 and 5. If utility power fails, the UPS sends a signal by
bridging pins 8 and 5. To shut the UPS down remotely, send a 5V to 12V signal
on pin 3 (using pin 5 as the negative ground) for at least 3.8 seconds.
EPO (Emergency Power Off) Port: Select models feature a EPO port that
may be used to connect the UPS to a contact closure switch to enable
emergency inverter shutdown. See Optional Installation.
NEMA 5-15R
Other outlet types not shown
Communications
Basic Operation
(continued)
USB Port
(Select Models)
DB9 Port
200608195 93-2615 HTR22-3U OM.qxd 10/19/2006 9:36 AM Page 9