Rj-45 Data Line Protection Connectors; Ups Communications; Ups Inverter/Transfer Voltage Configurations; Figure 17 Dip Switch Settings For 120V System - Liebert UPS Systems PSI XR User Manual

6.3

RJ-45 Data Line Protection Connectors

Data line (in and out) connectors on the rear of the UPS provide transient voltage surge suppression
(TVSS) for network devices.
6.4

UPS Communications

The Liebert PSI XR is equipped with a Liebert IntelliSlot
and monitoring options.
Liebert MultiLink software continually monitors the UPS and can shut down your computer or server
via USB and RS-232 in the event of an extended power failure.
The Liebert IS-WEBRT3 provides SNMP and Web-based monitoring and control of the UPS across
the network.
NOTE
The USB, SNMP and contact closure communications operate in parallel. Using the Liebert
IS-WEBRT3 disables the serial communications of the DB-9.
6.5

UPS Inverter/Transfer Voltage Configurations

A two-pin DIP switch on the rear of the PSI XR permits setting the UPS to operate at nominal volt-
ages of 110V, 120V or 127V. This feature will change the high and low points at which the UPS
switches to battery power. It also changes the UPS' output voltage when the UPS is operating in bat-
tery mode. The factory default setting is 120 VAC.

Figure 17 DIP switch settings for 120V system

Table 5 Voltage configurations
Setting
110
120
127
FUNCTION 1 2
Voltage = 110V
Voltage = 120V
Voltage = 120V
Voltage = 127V
Input Voltage Range
83~138
90~150
96~159
19
®
port to provide advanced communication
1 2
DIP ON
Output Voltage (Battery Mode)
110VAC
120VAC
127VAC
Communication