3.Unplug the ERM from a second connected ERM.
4.Remove the front bezel ("Removing the ERM front bezel" on page 32) on the ERM that is being replaced.
5.Remove the screws securing the ERM to the rack.
6.Remove the ERM from the rack.
To replace the component, reverse the removal procedure.
Updating the UPS firmware
CAUTION: Using a USB to serial converter cable will damage the UPS.
To update the UPS firmware, see the HP website (http://www.hp.com/go/rackandpower).
Maintenance 38
