The concept of security zoning is described in IEC62443. In short,

security zoning is a method to segment a system into zones with

different security levels. A security level is complied with by

implementing a combination of security counter measures. The

reason why it potentialy could make sense to divide a system into

security zones, which comply with different security levels, could be

that the risk for different parts of the system varies. Another could be

that the impact of a potential incident varies.

Features and benefits

• NE870 has a redundant power supply and alarm function

• Wide operating voltage range (16 VDC to 60 VDC)

• Back end holds a casted DIN clip for stable mounting on a DIN-rail

• Digital IO for monitoring

• Console port for management using CLI

• USB port for easy save and load system configuration

• 3 x RJ-45 10/100/1000 Ethernet TX connectors

• 8 x RJ-45 10/100 Ethernet TX connectors

• Status LED‘s