Siemens SIPLUSTIM3V-IE Module

Simple network structures can be built up in this manner, or complex ones that comprise a combination of star, line and ring structures. At the control desk (e.g. ST7cc) the use of a TIM 4R-IE is not necessary, i.e. the connection is made directly to the Ethernet interface of the PC.

When wired Ethernet communication is not possible, a wireless network can be installed using commercially available Ethernet wireless modems or with IWLAN. In order to decouple the networks, the connection in the control center can be made via a TIM 4R-IE, as in the example, or directly to the Ethernet interface of the PC.

The continuously falling flat rates for DSL connections make this medium an interesting alternative to a leased line or also a telephone connection. DSL routers must be used in the station and control center, preferably routers in combination with SCALANCE S (VPN), in order to establish secure connections using VPN tunnels. A permanent IP address is recommended for DSL connection of the control center, the IP addresses of the stations can be dynamically assigned.

In order to decouple the networks, the connection in the control center can be made via a TIM 4R-IE or directly to the Ethernet interface of the PC.