With data transmission using PLC via existing power supply cables to the individual PIS devices within a train consist, a considerable part of the Ethernet network can be eliminated, which significantly reduces costs and cable space. 

With plc-tec’s PLUS-PCN solution, based on the Power Line data bUS technology and developed in close cooperation with the leading PIS supplier ANNAX-Wabtec, the existing switch Ethernet-based PIS network can be completely removed for intra-consist communication. The Ethernet-based backbone network remains, but interfaces directly to the PLC modems via the power supply, eliminating the need for Ethernet switches. This provides a very cost-effective solution. 

This architecture involves the use of two PLUS-PCN Concentrators per consist (one at each end) connected to the Ethernet backbone network. This provides equivalent redundancy to an Ethernet-based solution. A PLUS-PCN modem including coupler and power supply unit for the 36 V DC train PDN is integrated in each application terminal (e.g. monitor, display or audio). The power supply and coupler versions meet all relevant railroad standards for electronic devices and EMC. Suitable interfaces to the existing application devices are integrated, which support the VLAN/IP address support.