Siemens NK8235

Structure and functions
NK822x hardware
4
19
Building Technologies
A6V10062437_a_en
Fire Safety & Security Products 30.06.2013
Diagnostics (LED yellow)
Internal interface diagnostics:
 Off : status OK.
 Blinking (1 flash) : missing or insufficient license.
 Blinking (2 flashes) : trouble with the I
2
C bus to I/O modules.
 Blinking (3 flashes) : trouble with the LON interface.
 Blinking (4 flashes) : trouble with the serial/network interface.
 Blinking (5 flashes) : trouble with DLL or RCLOCK file(s).
 On : critical/hardware fault.
Right Side LED’s
The four LED's on the right side are, from top to bottom:
Name Function
Com1 Status Com1
Com2 Status Com2
Com3 Status Com3
Com4 Status Com4
Red: RX
Green: TX
4.1.2 Internal DIP switches
The internal DIP switches enable a download session via FTP using a default IP
address.
Internal switch Functions
DIP switch 1 Not used.
DIP switch 2 Default mode/network access: If DIP-switch 2 is ON, an FTP connection occurs
by default on the Ethernet at the default IP address 192.168.10.41.