Siemens NK8000 Series Installation, Configuration & Operation page 46

Hardware installation
5
NK823x hardware installation
SIEMENS
Power
Vital functions
Tamper
Download
Diagnostic
NK8235
NK823x I C bus addresses
2
46
Building Technologies
CPS Fire Safety
COM 1 ... COM 4: RS232 Connectors
RS232 lines are connected to 9pin D-Sub connectors, female type.
Pin Assignment
NK822x
1 CD
2 RXD
3 TXD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI
DIN Rail Installation
The modules are supplied in a plastic box that can be easily attached to the DIN
rail by hooking it on the top of the rail and pressing it in on the opposite side. To
detach the box, pull downward on the tab located at the rear of the module. The I/O
modules are mounted the same way.
Note: Before removing the box, carefully disconnect the flat cable (bus) of the I
module, as well as the power supply cables.
I C interface
2
1
Com 1
Com 2
PW
MAINS
Com 3
AC/DC
Com 4
LOW BATT
BATT FUSE
DF8090
1 2 3 4 5 6 7 8
1 2
3 4
Item Description
1 Address setting (factory setting): address 8.
2 Address setting (factory setting): address 1.
3 Address setting: address 2.
4 Address setting: address 3.
Installation in Subsystem Housing Without DIN-Rail
NK823x can be installed without the plastic box using the specific mounting kits
available for CS11/CS440 and SI410. Note that the NKA8011-A1 mounting plate is
also needed together with the specific mounting kits.
RS232 connections.
NK823x COM: 1-2
CD
RXD
TXD
DTR
GND
DSR
RTS
CTS
RI
2 3
DF8040 DF8045 DF8020
1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8
NK8235.4: COM 3-4
RXD
TXD
GND
4
A6V10062437_a_en
C
2
30.01.2019