8-13
7.
Turn the screw that secures the BBU GUIDE to the defective power supply, and remove the
BBU GUIDE.
Screw securing BBU GUIDE
BBU GUIDE
8.
Disconnect the cable, and remove the battery backup unit, which is in normal state, from the
defective power supply.
(Standard battery)
(Optional battery)
Battery backup unit
9.
Insert the battery backup unit connector (removed in step 8) into the connector on the
replacement power supply, and place the battery backup unit with the label up.
Note the following points on replacing or additionally installing a battery backup
unit:
– A replacement or additional battery backup unit must be of the type used in
the standard configuration.
– The standard battery backup unit must be installed on the left side. (See the
figure above.)
– The optional battery backup unit must be installed on the right side. (See the
figure above.)
The batteries are not enabled unless a battery backup unit is installed at the
standard battery location. They are not enabled either if a battery backup unit is
installed only at the optional battery location.
When installing the battery backup unit in the power supply, push in the
connector until it is locked.
Incorrect insertion may cause a power failure or battery backup unit failure.
