Siemens NK8235

Structure and functions
4
NK822x hardware
22
Building Technologies A6V10062437_a_en
Fire Safety & Security Products 30.06.2013
Item Name Function CD00251 Rev.A boards CD00251 Rev.B boards
1 S1 Service mode
request
— —
2 DL1
(yellow)
Diagnostics
LED
Blinking if LON is faulty Blinking if LON is faulty
3 DL2
(red)
Node in use LED normally on LED normally on
4 DL3
(yellow)
Service mode LED normally on LED normally off
5 DL4
(yellow)
RX LED normally on, off
when receiving data
LED normally off, on
when receiving data
6 DL5
(yellow)
TX LED normally on, off
when transmitting data
LED normally off, on
when transmitting data
At the rear of the unit, there are 4 rotary switches for LON addressing (LON physi-cal
address).
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
1
2
3
4
5
6
7
8
A
B
C
D
E
F
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
1
2
3
4
5
6
7
8
A
B
C
D
E
F
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
1
2
3
4
5
6
7
8
A
B
C
D
E
F
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
1
2
3
4
5
6
7
8
A
B
C
D
E
F
Subnet
Node
9
9
9
9
LH
LH
HL
HL
CD00251 Rev.A boards CD00251 Rev.B boards
Default LON address settings for communications with Guarto MP3 on NK22xx rotary switches
LON address assignment for CS6 Guarto MP3
The LON communication between NK822x and CS6 Guarto is based on logical
BACnet addresses for both devices.
The physical LON address of the NK822x LON interface is configurable, whereas the
logical BACnet address of NK822x is fixed.
The default physical LON address of NK822x is:
 Subnet : 01
 Node : 02