Siemens NK8000 MP.4.60 Installation Function & Configuration Commissioning Safety Regulations page 39

Building Technologies
Fire Safety & Security Products
Bottom view
Serial RS232 interfaces
Item Name
1 COM 3
2 COM 4
3 COM 1
4 COM 2
Note: NK8222 and some NK8223/NK8225 configurations do not include
COM3/COM4.
NK822x hardware installation
Description
—
—
In place of CN4
—
Hardware installation
1 2
3 4
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