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SC
‐
DAS
Figure
4.6
–
MCPU
at
a
glance
In
the
Main
Central
Processor
Unit,
a
lithium
battery
is
installed
for
RTC
(Real
Time
Control)
function.
CAUTION
RISK
OF
EXPLOSION
MAY
OCCUR
IF
BATTERY
IS
REPLACED
BY
AN
INCORRECT
TYPE
DIPOSE
OF
USED
BATTERIES
ACCORDING
TO
THE
INSTRUCTIONS
[INSTRUCTION]
The
equipment
and
accessories
including
inner
lithium
battery
are
to
be
disposed
of
safely
after
the
life
span
of
them
according
to
the
national
regulation.
Do
not
attempt
to
replace
the
lithium
battery
unless
authorized
by
a
qualified
service
personnel,
to
avoid
any
risk
of
explosion.
4)
Main
Power
Supply
Unit
(MPSU)
The
MPSU
takes
a
‐
48V
input
and
outputs
+6V
and
+9V
DC
power.
On
the
front
panel,
this
unit
has
an
output
test
port
and
it
also
has
DC
ALM
LED
Indicator
to
show
faulty
output.