NEC Express5800 User Manual page 321

7.
Attach the battery unit to the server using the screw removed in step 4.
8.
Attach the other end of the battery control cable to the connector board on the RAID
controller. Make sure that the cable is inserted firmly and straight into the connector. Do
not wriggle the cable head while inserting it.
Correct connection Connect the cable to the connector aligning the markings on each.
Markings
Upgrading Your Server 9-31