User`s manual
MPS Doc: UPS_AS_UM  Rev (-)  May 23, 2012  Page 24 of 38 
5.2. A Single PC System 
In this example the PC is a Server station fed by an M359-1 UPS. The specific Server 
in this example consumes 500W (including all auxiliary equipment that is fed by the 
UPS; like screen, printer, communication (LAN) hardware, etc.) and takes 2 minutes 
to shut down in an orderly fashion. We will assume that the system in this example 
requires an early warning of about 5 minutes before actual shutdown is initiated.  
5.2.1. Calculating the Required Battery Thresholds. 
From the "M359-1 Holdup Time Vs Power" plot, the M359-1 can support a 
500W load for 35 minutes. 
UPS 
Power Line 
PC Server 
LAN 










