• Automatic setup and holding of IP-based online connection to the Internet
• Merging of distributed, IP-based networks via mobile radio networks
• Bi-directional IP-based data communication with a telecontrol center, e.g. ST7cc or ST7sc, WinCC or PCS 7
• Integrated security functions with firewall (Stateful Inspection)
• Integrated IPsec VPN tunnel encryption
• Data exchange between telecontrol stations (slave-slave communication) via a TIM communication module in the service center
• Secure data communication with the SINAUT ST7 stations, also over mobile radio provider networks which do not provide public and fixed IP addresses for the modem
• Automatic and user-defined sending of text messages
• Configuration data can be saved by means of the C-PLUG storage medium (not included in the scope of delivery)

Configuration

• User-friendly configuration of all network and firewall parameters of the router using the web browser
  • CLI (Comand Line Interface)
  • Integration in TIA Portal available soon

Security

• Router for data transmission via public networks with NAT functionality (NAT Traversal, NAPT, 1:1-NAT)
• Standardized VPN termination of the control center
  • by means of IPsec protocol
  • OpenVPN (for M874-x and M876-x, others available soon)
• Firewall for protection against unauthorized access; the dynamic packet filter checks data packets based on the source and target address (Stateful Inspection)

Diagnostics / maintenance

• Connection buildup status and status of an existing connection via front LED display
• Diagnostics using convenient web-based management
• Diagnostics via SNMP v1/v2/v3

Requirements for use of the SCALANCE M874/M876 mobile network router

• SIM card from a mobile network operator with LTE/UMTS support or alternatively, a SIM card from a mobile wireless operator with GSM support