Siemens NK8237 MP4.81-02 - Page 24

5
Hardware installation
NK8237 hardware installation
24
Building Technologies
A6V10854379_a_en
CPS Fire Safety
25.01.2019
Top view
6 7 851
2
3
4
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9
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.