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Rev. 1.03
3.3.1 Block power supply
+
B
- B
~
~
B
at
te
ry
fu
se
Battery fuse
Transformer
GND
Battery
N
L
CASE
TRANSFORMER
+
-
+
-
12V 7Ah
12V 7Ah
DOOR
The block power supply is composed of:
1) Toroidal transformer 230Vac / 33Vac.
2) Clips for the connection to the 230Vac:
a. Neutral.
b. Line.
c. GND.
d. GND of the case.
e. Protection fuse from the 230Vac.
3) Two batteries pad of 12V 7Ah.
4) Clips for the motherboard power supply:
a. (-B, +B) battery pad.
b. GND.
c. (~ ~) transformer.
d. Protection fuse from the battery connection.
WARNING
: after the cable connection of the power supply to the GND-N-L clips of AC-DC
Adaptor, it is important to immobilize the three electrical cables with a plastic strip. It is
necessary to prevent that electrical cables are free to move.
WARNING
: the power supply cable must have the ground electrical cable (GND) more long
respect the line (L) and neuter (N) cables.
