AT&T 3B2/300 Technical Reference Manual page 569

FUNCTIONAL D E S C R I P T I O N - - - - - - - - - - - - - - - - - - - - - - - - - -
3.6V
3.0V
NONVOLATILE
HIGH ENERGY 3.0V
RANDOM
LITHIUM BATTERY
ACCESS
MEMORY
TIME-OF-DAY
+12V
3.0V
CLOCK
+sv
3.0V
FEATURE CARDS
NOTE: The battery connects to the system board on Version 2 computers
and to the backplane on Version 3 computers.
Figure 3-103: 382 Computer Backup Battery Supply - Functional Block Diagram
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