Siemens NK8235

Hardware installation
NK823x hardware installation
5
49
Building Technologies
A6V10062437_a_en
Fire Safety & Security Products 30.06.2013
6 +
7 Earth
Secondary
(optional)
8 –
X2/X3: 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.
X101: Onboard I/O (Output Relay)
Onboard I/O (output relay).
Pin Assignment
1 Common
2 NO output
3 NC output
X102: Onboard I/O (Inputs)
Onboard I/O (inputs).
Pin Assignment
1 Input 1 (Mains failure)
2 Input 2 (Battery fault)
3 Input 3 (Power supply fault)
4 Common
5 + Val
6 – Val