Hamburger Hochbahn AG has completed the installation of its entire bus fleet (approx. 1000 buses) with state-of-the-art NB2800 series vehicle routers of NetModule. More than 100 passengers per vehicle can now surf the MobyKlick network free of charge and even at the same time – it’s currently Germany's fastest mobile and free WiFi with a download speed of 1 Mbit/s and an upload speed of 300 KBit/s. Your daily data volume at HOCHBAHN is 100MB. The maximum download speed of the router per vehicle is up to 600 Mbit/s, depending on network availability.Because the feedback from passengers is so positive, HOCHBAHN is now planning free WiFi access for each of the 92 underground stations by the end of this year.
"The cooperation with NetModule and the performance of the routers have completely convinced us," says Erich Reschke, head of train protection and communication systems department. "As a next step, we also want to use the devices for transmitting further information". The technical prerequisites provided by the router make it possible to add useful functions such as the transmission of operating data (DFI, connection information) or the provision of current information to passenger television.
The NB2800 routers offer two integrated LTE Advanced Cat. 6 modems, one of which is used exclusively for PWLAN and the other for operational data transmission such as passenger counting. Secure transmission takes place via VLANs and dedicated communication paths for each application. Quality of Service (QoS) enables the prioritization of data traffic and ensures that less important tasks do not block those with higher priority. Many other interfaces ensure excellent interaction with the on-board electronics. If required, the routers can also be equipped with CAN, RS-232, RS-485, Audio Line In/Out, and IBIS interfaces.