5
Optional Installation
These connections are optional. Your UPS will function
properly without these connections. Note: Your unit may differ
slightly from these diagrams.
USB and RS-232 Serial
Communications
Use the included USB cable (see
) and/or DB9 serial
cable (see
) to connect the communication port on
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. Your UPS may feature additional
communications ports; these ports may also be connected
to additional computers which have PowerAlert
Software installed. Consult your PowerAlert manual
for more information.
Relay Contact-Closure Connection
Use the included DB9 cable (see
) to connect
specialized electronic equipment to the relay
contact-closure port on your UPS System.See diagram
(
) and chart below to determine signals carried by
this port.
Relay Contact Closure Chart
2b
2a
1b
1a
4-5
1b
1a
3a
3b
1
2
3
2a
LINE FAIL
K1 A
LO BATT
K1 0A
1
2
3
4
5
6
7
8
9
OPENS ON LINE FA IL
CLOSE S ON LINE FAIL
CLOSES
BELOW LOW BATTER Y
TOP OF DUAL
DB9 (J5/J34)
NO TE :
CLOSES BELOW MID BATTERY
J5
REMOTE CONTACTS
COM
MID BAT
K4 A
COM
COM
OPENS
BELOW MID BATTERY
RE
LA
YS
SH
OW
N
D
E-E
NE
RG
IZ
ED
OPENS BELOW LOW BATTERY
2b
Relay Contact Closure Interface Diagram
EPO Port Connection
(Select Models Only)
This optional feature is only for those applications
which 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.
Using the cable provided, connect the EPO port of your
UPS (see
) to a user-supplied normally closed or nor-
mally open switch according to the circuit diagram (see
). The EPO port is not a phone line surge suppressor;
do not connect a phone line to this port.
3b
3a
Line Fail
Mid Battery
Low Battery
Indication
Indication
Indication
UPS Operating
Pins 1
Pins 2
Pins 7
Pins 8
Pins 4
Pins 5
Conditions
& 6
& 6
& 3
& 3
& 9
& 9
AC Input Voltage OK
CLOSED
OPEN
—
—
—
—
AC Input Out of Range
OPEN
CLOSED
—
—
—
—
Battery More than 3 Min.
—
—
OPEN
CLOSED
—
—
Remaining Charge*
Battery Less than 3 Min.
—
—
CLOSED
OPEN
—
—
Remaining Charge*
Battery More than 2 Min.
—
—
—
—
OPEN
CLOSED
Remaining Charge*
Battery Less than 2 Min.
—
—
—
—
CLOSED
OPEN
Remaining Charge*
Open on
Close on
Close
Open
Close
Open
Line
Line
Below
Below
Below
Below
Contact Action
Failure
Failure
Mid
Mid
Low
Mid
Battery
Battery
Battery
Battery
Battery
* Times are approximate, at full load.
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