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3.6 Connect Network Surge protection
Connect a 10 base-T/100 network cable to the RJ-45 network surge protection IN jack on the rear of
the UPS. Connect from the OUT jack with network cabling to network equipment (see Figure 11).
Figure 11 Connect network surge protection
3.7 Connect Computer Interface Port
Determine what type of communication connection to use to manage the UPS. The Liebert PSI XR
can be monitored with any of these communication methods:
• serial
• contact closure
•USB
•SNMP
Connect the appropriate, factory-supplied cable to the interface port on the rear of the UPS and to the
computer interface port. See the Liebert MultiLink shutdown software user manual on the included
CD-ROM for details and installation information. Also refer to 6.4 - UPS Communications.
Figure 12 Connect computer interface port
DC 24V
OUTPUTINPUT
EPO
VOLTAGE=110V
VOLTAGE=1 20V
VOLTAGE=1 27V
2 1
FUNCTION
Network surge
protection OUT Jack
Network surge
protection IN jack
Network
Equipment
DC 24V
OUTPUTINPUT
EPO
VOL TAGE=1 10V
VOL TAGE=12 0V
VOL TAGE=12 7V
2 1FUNCTION
USB connector is to left of DB-9 port
on the UPS; USB port on computer varies