Customer Battery Replacement; Figure 5: Battery Replacement Label - AT&T Delta OPSU/BBU Operation Manual

4.2

Customer Battery Replacement

Battery replacement is detailed on a label located inside the front cover of the BBU.
1. Open the front cover of the BBU.
2. Disconnect the jack connecting the battery harness to the BBU.
3. Push the tabs retaining the battery, one above and one below, outward and
remove the battery.
4. Disconnect the battery harness from the battery terminals.
5. Reconnect the battery harness to a new, identical type battery.
6. Reconnect the jack of the battery harness to the BBU.
7. Push the battery retaining tabs outward and insert the battery into the BBU. Make
sure the wires of the battery harness are free and not pinched by the battery or
the door.
8. Close the door of the BBU.
9. Press "Cold Start" button until all 4 LEDs are lit then release to restart operation.
OPSU/BBU Instalation and Operation Manual (IOM), Rev 0.0
(1 )D isc o n n e c t J a c k
P u sh T a b s
O u tw a rd s
& R e m o v e
B a tte ry
(1 )C o n n e ct W ire s
P u sh T a b s
O u tw a rd s
& In s ta ll
B a tte ry
(4 )P re s s C o ld S ta rt b u tto n u n til a ll 4 L E D s
a re lit th e n re le a se to re s ta rt o p e ra tio n

Figure 5: Battery Replacement Label

(2 )
D isc o n n e c t W ire s
(2 ) (3 )C o n n e c t Ja c k
(3 )
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