Siemens NK8223

Structure and functions
3
NK822x hardware
19
Building Technologies
A6V10062437_a_en
CPS Fire Safety
30.01.2019
⚫ 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 LEDs
The four LEDs on the right side are from top to bottom:
Name
Function
Com1
Status Com1
Red: RX
Green: TX
Com2
Status Com2
Com3
Status Com3
Com4
Status Com4
3.1.2 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 192.168.9.41.
3.1.3 Internal jumpers
The internal jumpers are used for:
⚫ JP3: when closed, it disables the box tamper alarm.
⚫ JP6: when closed, it enables the LON termination resistor (100 Ω) for a doubly
terminated bus topology.