Tripp Lite SmartOnline SU8000RT4U Owner's Manual page 7

Optional Connection
The following connections are optional. Your UPS system will function properly without
these connections.
USB and RS-232 Serial Communication Connection
1
Use the included USB cable
communication port of your computer to the communication port of your UPS. Install on
your computer the Tripp Lite PowerAlert Software appropriate to your computer's
operating system. Consult your PowerAlert manual for more information.
Dry Contact Note: Dry contact communications are simple, but some knowledge of
electronics is necessary to configure them. The DB9 port's pin assignments are shown in
diagram . If the UPS battery is low, the UPS sends a signal by bridging pins 1 and 5.
1c
If utility power fails, the UPS sends a signal by bridging pins 8 and 5. To shut the UPS
down remotely, short pin 3 and pin 9 for at least 3.8 seconds.
2 EPO Port Connection
This optional feature is only for those applications that require connection to a facility's
Emergency Power Off (EPO) circuit. When the UPS is connected to this circuit, it enables
emergency shutdown of the UPS's inverter and inhibits transfer to internal bypass. Using
the cable provided, connect the EPO port of your UPS (see
normally closed or normally open switch according to the circuit diagram (see
Note:
1. If using a cable other than what is supplied, the cable should not exceed 350 feet
or have a resistance of greater than 10 ohms.
2. If a non-latching EPO switch is used, the EPO must be held for a minimum of 1
second. This does not apply to a latching EPO switch.
CAUTION: The EPO port is not a phone line surge suppressor; do not connect a
phone line to this port.
UPS Unit State when asserting EPO with AC line present:
LEDs Output
OFF OFF
To restart the UPS unit after asserting EPO with AC line present:
Option 1:
1. Verify that the EPO assertion has been removed or cleared.
2. Press ON button until unit displays "STAND BY" (approx. 1 second).
3. Press ON button again and UPS output will turn back on after it completes
diagnostics.
Option 2:
1. Verify that the EPO assertion has been removed or cleared.
2. Remove AC line power to the UPS unit.
3. Reapply AC line power. Now the UPS will start back up in normal operation mode.
UPS Unit State when asserting EPO without AC line power:
LEDs Output
OFF OFF
To restart the UPS unit after asserting EPO without AC line power:
1. Verify that the EPO assertion has been removed or cleared.
2. Reapply AC line power to the UPS unit. Now the UPS will start back up in normal
operation mode.
201102170 932611.indd 7
and/or RS-232 DB9 serial cable
1a
Fans Serial SNMP
ON ON ON
Fans Serial SNMP
OFF OFF OFF
to connect the
1b
1a
1b
) to a user-supplied
2a
).
2b
1c
2a
USB LCD Screen
"Emergency
ON
Stop"
2b EPO Pin Assignment
USB LCD Screen
"Emergency
OFF
Stop"
7
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3/30/2011 10:22:12 AM