Serial Interfaces; Lon Interface - Siemens NK8000 Series Installation, Configuration & Operation

3.2.4
3.2.5
Building Technologies
CPS Fire Safety
1
X1 X2
Internal DIP switch and jumpers (NKM8001-A2 mainboard)
Item Name
1 S101
2 S1
3 S2
4 X115

Serial interfaces

NK8231.2 NK8232.2
,
⚫
lines available on the main board.
NK8235.4
: this model is equipped with 4 serial interfaces (two on the main
⚫
board and two on an expansion module). COM3 and COM4 do not support the
hardware-handshaking signals for modem control (Rx, TX, and GND only).
Note: In all NK823x models, the first and the second serial port can be configured
as an RS232 interface using connector COM1 and COM2, or as an RS485
interface using connectors X104 and X105.
All lines are fully RS232 compliant and have EMC/ESD protection.
No galvanic isolation is provided; all serial lines have a common ground.

LON interface

The NK823x Ethernet Ports do not have a LON interface. NK823x supports CS6
Guarto intrusion detection system via a USB network interface (see
Connectivity Guide
, document no.A6V10359489).
2
X3 X101
Description
DIP-Switches
Reset button
Tamper switch
When closed, it disables the box tamper alarm.
NK8235.2
, : these models are equipped with two serial
Structure and functions
NK823x hardware
X102 X103 X104
Intrusion
A6V10062437_a_en
3
3 4
X105
X111
27
30.01.2019