Siemens NK8000 MP.4.60 Installation Function & Configuration Commissioning Safety Regulations page 48

Hardware installation
5
NK823x hardware installation
48
Building Technologies
Fire Safety & Security Products
Power connections
Note the dual power supply input for redundant solutions.
NK823x power connections
WARNING
There is a risk of explosion if the battery is replaced with an incorrect battery type.
Use 27Ah 12V batteries. Dispose of the used battery at a recycling point in
accordance with local environmental standards and regulations.
X103: Power Supply
Power supply Pin
Primary 1
2
3
N/A 4
N/A 5
X103 X104 X105
Power supply RS485-1 RS485-2
DF8090
Vin
Batt
Vout
Power connections.
Assignment
+
Earth
–
Not used
Not used
POWER
SUPPLY
BATTERY
27Ah 12V
Vin = Voltage In
Vout = Voltage Out
Batt = Battery
A6V10062437_a_en
30.06.2013