Pentaband UMTS with the frequency bands 800/850/1700/1900/2100 MHz
Quad-band GSM with the frequency bands 850/900/1800/1900 MHz
Support for UMTS with HSDPA+ (downlink: 14.4 Mbit/s, uplink: 5.76 Mbit/s)
Without UMTS network, automatic switchover to 2nd generation mobile radio data services, eGPRS or GPRS mode
Automatic setup and holding of IP-based online connection to the Internet
Merging of distributed, IP-based networks via UMTS/GSM mobile radio networks
Bi-directional IP-based data communication with the 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
User-friendly configuration of all network and firewall parameters of the router using the web browser
Security
Router for data transmission via public networks with NAT functionality (NAT Traversal, NAPT, 1:1-NAT)
Suitable VPN termination of the control center via SCALANCE S
Firewall for protection against unauthorized access; the dynamic packet filter checks data packets based on the source and target address (stateful inspection) and blocks undesirable data traffic (anti-spoofing)
Diagnostics / maintenance
Status of connection buildup and of an existing connection via front LED display and web browser
Preconditions for using the SCALANCE M875 UMTS router
SIM card from a UMTS network operator with HSDPA support, or alternatively a SIM card from a GSM network operator with eGPRS or GPRS support
