Siemens NK8237 MP4.70 Installation Function & Configuration Commissioning Safety Regulations page 20

Firewall application for sinteso stt20 and cerberus pro fire detection systems
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Hardware installation
4
NK8237 hardware installation
20
Building Technologies
Fire Safety & Security Products
Top view
1
NK8237 electrical interfaces (top view)
Item
Name
1
X1
2
X2
3
X3
4
X101
5
X102
6
X103
7
X104
8
X105
Bottom view
Serial RS232-interfaces (bottom view)
Item
Name
1
COM 1
2
COM 2
Power connections
Note the dual power supply input for redundant solutions.
Back
2
3
4
5
Description
USB
Ethernet 2
Ethernet 1
1 output
3 inputs
Power supply
RS485 (in place of COM1)
RS485 (in place of COM2)
1
Description
In place of X104.
In place of X105.
6
7
8
2
A6V10403182_a_en
30.09.2014

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