A-7
Cisco Firepower Management Center 750, 1500, 2000, 3500, and 4000 Hardware Installation Guide
Appendix A Replacing a RAID Battery Backup Unit Assembly on the Firepower Management Center 3500
BBU Replacement Instructions
Step 4
Remove the BBU assembly from the chassis.
Installing the New BBU Assembly
Once the old BBU assembly is removed from the chassis, you can install the replacement BBU assembly
which comes pre-assembled for ease of installation. Cisco recommends that you install the replacement
BBU assembly as described in the following procedure.
To install the replacement BBU assembly:
Step 1
Locate the tabs that secure the BBU assembly to the chassis. They are located on the inside floor of the
chassis, on the left side, near the front of the chassis by the power supply (see
Figure A-6
).
Step 2
Align the clips on the bottom of the plastic battery tray (see “1” in
Figure A-5
) with the tabs on the
chassis.
Step 3
Slide the BBU assembly unit toward the power supply until the tabs engage with the notches in the
chassis.
Caution
Make sure the side clip (see “2” in
Figure A-5
) has fully engaged with the chassis to lock the tray into
place. Failure to properly secure the battery tray may allow the BBU assembly to move freely inside the
chassis. This could cause a malfunction, such as loosening of the BBU cable, which would jeopardize
the battery protection.
Step 4
Carefully connect the cable to the new BBU. Make sure you observe cable polarity and uniformly insert
the connector into the BBU connector.
Figure A-5
Underside of BBU Battery Tray
1
Tray clips
2
Side clip
