Dell UPS 1920R - Manual (Page 9)

Dell UPS Management Software: Common Software Installation Scenarios
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Figure 4: Connectivity for Dell UPS with USB or RS232 connection to four Dell servers
Power cables are shown for illustrative purposes only.
For best practices for cabling, refer to the Dell UPS Cabling Guide.
Scenario 1: Installation notes
Install the ULNM shutdown agent on each server.
Primary server ULNM configuration:
The ULNM software running on the primary server will automatically discover the UPS and assign it
as the Power Source (the Status icon is green ).
To configure shutdown settings: Click “Shutdown” menu  “Edit Shutdown Configuration” and
make the appropriate settings. For an explanation of shutdown timer settings, refer to Appendix 2.
To support automatic server restart after a shutdown event, ensure that the “Outlet Shutoff
Active” box is checked and check the server BIOS settings to ensure that “Auto Power On” or “Last
State” is set as active.
To enable the primary ULNM agent to communicate with secondary ULNM agents:
Click “System”  “Edit Modules Settings”  check the “Shutdown controller” box.
This enables communication interaction between the primary and secondary ULNM applications.