Siemens NK8235

5
Hardware installation
NK823x hardware installation
42
Building Technologies
A6V10062437_a_en
CPS Fire Safety
30.01.2019
Installation in subsystem housing without DIN-rail
NK822x can be installed without the plastic box using the specific mounting kit for
CS11/CS440.
NK822x mounting option for CS11 AlgoRex
Note: For more details, see document no. 008725 ( CS11 EP7F Planning ).
5.3 NK823x hardware installation
Installation
1. Install the NK823x unit on the DIN rail.
2. Connect subsystems:
– Subsystem lines using the standard RS232 interfaces on COM1 - COM4.
Note: Only COM1 and COM2 are available on NK8231 and NK8232.
– If used in place of COM1, the RS485 interface is on X104.
– If used in place of COM2, the RS485 interface is on X105.
3. If used, connect the power supply supervision module DF8090.
4. If used, connect the onboard I/O signals.
5. Connect power supply.
See Figure Power connections if using a DF8090 power supply supervision
module.
WARNING
Do not connect or disconnect any device when the device is powered on!