Verifying the REPO port connection .............................................................................................................. 31 
Powering down the UPS .............................................................................................................................. 31 
Power management .................................................................................................................... 32 
Power management software ....................................................................................................................... 32 
Maintenance .............................................................................................................................. 33 
Removing the UPS front bezel ...................................................................................................................... 33 
Removing the ERM front bezel ..................................................................................................................... 33 
Replacing the UPS electronics module .......................................................................................................... 33 
Replacing the UPS option card .................................................................................................................... 34 
Replacing the batteries ............................................................................................................................... 35 
Important battery safety information ................................................................................................... 35 
Battery care and storage guidelines ................................................................................................... 36 
Determining when to replace batteries ................................................................................................ 36 
Obtaining new batteries ................................................................................................................... 36 
UPS battery replacement procedure ................................................................................................... 36 
Testing the new battery module .......................................................................................................... 38 
Replacing the UPS ...................................................................................................................................... 38 
Replacing the ERM ..................................................................................................................................... 38 
Updating the UPS firmware ......................................................................................................................... 39 
Configuring a USB to serial converter ................................................................................................. 39 
Reassigning the USB COM ports........................................................................................................ 40 
Troubleshooting .......................................................................................................................... 41 
LED and audible alarm troubleshooting ........................................................................................................ 41 
UPS is in Auto-Bypass mode ........................................................................................................................ 42 
General alarm condition ............................................................................................................................. 42 
Bypass is out of range ................................................................................................................................ 43 
Battery condition ........................................................................................................................................ 43 
UPS is on battery ........................................................................................................................................ 43 
Input voltage is out of range ........................................................................................................................ 43 
Utility power condition ................................................................................................................................ 44 
Internal UPS fault condition ......................................................................................................................... 44 
REPO condition .......................................................................................................................................... 44 
Site wiring condition ................................................................................................................................... 44 
Overload condition .................................................................................................................................... 44 
UPS does not start ...................................................................................................................................... 44 
Low battery shutdowns ................................................................................................................................ 45 
UPS does not provide the expected backup time ........................................................................................... 45 
UPS frequently switches between utility and battery power ............................................................................. 45 
ERM cannot be configured from the UPS front panel ...................................................................................... 45 
Specifications ............................................................................................................................. 46 
UPS physical specifications ......................................................................................................................... 46 
ERM physical specifications ......................................................................................................................... 46 
UPS input specifications ................................................................................................
.............................. 46 
UPS output specifications ............................................................................................................................ 47 
Power protection specifications .......................................................................................................... 47 
Voltage specifications ....................................................................................................................... 47 
Output tolerance specifications .......................................................................................................... 48 
Output feature specifications ............................................................................................................. 48 
Battery specifications .................................................................................................................................. 48 
Battery runtime ........................................................................................................................................... 48 
Environmental specifications ........................................................................................................................ 49