Thanks to IPv6 support, the devices can also be implemented in modern communication networks. Various security functions are included in order to monitor data traffic and protect against unauthorized access: for example, an integrated firewall as well as authentication of communication devices and encryption of data transmission via VPN. If there is no available 5G network, the device switches automatically to 4G or 3G networks. The first release version of the router has an EU radio license; other versions with different licenses are in preparation. With the Sinema Remote Connect management platform for VPN connections, users can access remote plants or machines easily and securely – even if they are integrated in other networks. The software also offers easy management and autoconfiguration of the devices.

Successful use of prototypes for private 5G networks

Besides connectivity to public networks, Scalance MUM856-1 also supports integration into private local 5G campus networks. Siemens is testing this use case in their own Automotive Showroom and Test Center in a prototype of a standalone 5G test network, which is based on Siemens components. The 5G infrastructure used here comprises a 5G core, a distributed unit, and several radio units. Siemens has also built another prototype of a private 5G infrastructure in its plant in Amberg, and their Karlsruhe plant will be equipped soon. In these systems, Siemens is relying exclusively on its own independently developed products and solutions. ▪ ds

The Scalance MUM856-1 also supports integration into private local 5G campus networks

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Power / Energy Storage

Supercapacitor with ultra-low leakage current to combine with lithium batteries

Supercapacitors may be combined with batteries to add the advantages of high capacity and low internal resistance. Low leakage currents will extend battery life in this application.
HY-LINE Power Components now offers a new model optimized specifically for this use case.

Whether for real-time clocks, memory retention or small buffer solutions: Supercapacitors have been an interesting alternative to batteries and accumulators. They are also increasingly replacing button cell batteries. However, the capacity of a supercapacitor is delivering energy only for a few weeks without recharging. Lithium batteries, on the other hand, manage 10 years, but without a buffer capacitor they have problems with pulse loads. An elegant solution is to connect the supercapacitor and battery in parallel – for example as a hybrid supercapacitor that internally combines the technologies of supercapacitor and rechargeable lithium-ion battery.
A popular alternative is to install two separate components: A high-capacity, non-rechargeable lithium battery and a supercapacitor. Since the maximum voltage of supercapacitors is 2.5 to 3.0 V per cell and lithium batteries deliver 3.6 V per cell, a series connection of supercapacitors is required. Their balancing network and supercapacitor self-discharge can reduce lithium battery life. In the new PHVL supercapacitor, the lower operating voltage and good selection of supercapacitors for minimum leakage currents and identical capacitances made it possible to dispense with a balancing network. It offers an operating voltage of 3.9 V (peak voltage 5.0 V) and capacitances of 0.47 to 5.0 F at an operating temperature range of -40 to +65 °C (-40 to +85 °C with restrictions).
At the same time, it shows only 10 to 20 percent of the leakage current of comparable models with up to 5.5 V working voltage; for a 5 F model, this is only 5 µA. This is the most uncompromising combination of the particularly long operating life of the lithium battery with the low internal resistance of the supercapacitor. ▪ ds

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