Hardware installation
4
NK8237 hardware installation
20
Building Technologies
A6V10403182_a_en
Fire Safety & Security Products
30.09.2014
Top view
Back
6
7
8
5
1
2
3
4
NK8237 electrical interfaces (top view)
Item
Name
Description
1
X1
USB
2
X2
Ethernet 2
3
X3
Ethernet 1
4
X101
1 output
5
X102
3 inputs
6
X103
Power supply
7
X104
RS485 (in place of COM1)
8
X105
RS485 (in place of COM2)
Bottom view
1
2
Serial RS232-interfaces (bottom view)
Item
Name
Description
1
COM 1
In place of X104.
2
COM 2
In place of X105.
Power connections
Note the dual power supply input for redundant solutions.