Siemens NK8235

Hardware installation
5
NK822x hardware installation
39
Building Technologies
A6V10062437_a_en
CPS Fire Safety
30.01.2019
Power connections
CN3
Power supply
CN4
RS485-1
DF8090
BATTERY
POWER
SUPPLY
27Ah 12V
Vin = Voltage In
Vout = Voltage Out
Batt = Battery
Vin
Batt
Vout
NK822x power connections
CN1: Ethernet connector
A standard RJ45 connector connects Ethernet. Category 5 or 6 UTP cabling is best
suited.
Ethernet connections.
Pin
Assignment
1
TX+
2
TX–
3
RX+
4
n.c.
5
n.c.
6
RX–
7
n.c.
8
n.c.