Design and function
B6-PSU Power Supply Unit, Technical Description, T 811 039 en a
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2.3
Batteries
Power can be supplied to the internal and external consumers either from the mains or internal batteries; this guarantees
power supply to the system from two independent sources of energy. If there is a mains voltage or mains power supply fail-
ure, the internal batteries automatically supply the system with power.
2.4
Connection
One battery pair (15...18 Ah) is connected to the B6-PSU by default in a SecuriFire 1000/2000.
From building distributor
Fuse at least 10 A
Own FI switch
Bayonet fuse
L1
N
PE
BATTERY
12V-15..17Ah
+ -
8A
8
A
B6-PSU
+5V; 3,3V
NETOK
EIN
AUS
50mV/A
F5
F4
F1
F2
F3
VBAT GNDBAT N L PE
+ -
BATTERY
12V-15..17Ah
Fig. 3 B6-SCU wiring diagram
