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2-5SectionBackup Power Supply
11
The
following diagram illustrates
a situation in which a 12V battery is used as a
backup
power supply
, connected to the Link Adapter in Plant B. If
there were no
backup
power supply in this case, then a power failure in Plant B
would cut of
f
signal
transmission between Plant A and Plant C. By connecting
the backup bat
-
tery in Plant B this is avoided, and continued transmission is assured.