Installation and configuration  18 
 
 
 
Attaching the UPS front bezel 
 
 
Connecting the serial communications port 
 
 
CAUTION: Use only the computer interface cable supplied with the UPS to connect the 
communications port to the host computer. 
 
 
 
IMPORTANT: Power protector software requires the communications port to be appropriately 
cabled to the host computer. 
 
 
  NOTE: This port is only used for firmware upgrades. For additional information, see "Updating 
the UPS firmware (on page 43)."