PIS/PA Networking Solutions


Accurate & reliable operation of Passenger Information and Public Address Systems are the primary factors for passenger satisfaction. PIS/PA are generally composed of display board, broadcasting audio system, and a reliable communications network, not only the onboard network but also the ground network towards the operation control center.


System Requirements

  • Redundant network technology to ensure failover recovery
  • Extraordinary industrial design against shock, vibration, EMC, unstable power supply for onboard environment
  • Routing and NAT to ease onboard inbound/outbound communications
  • Automatic IP assignment for end devices
  • Network multicasting function
  • PoE output for low and medium power electronics, such as display board
  • Long distance Ethernet extension to reach out trackside cabinets
  • Compact installation for rail onboard applications
  • High protection class preventing the harm of metal powder

Why KLG Smartec

  • Supports versatile Ring technologies, e.g. STP/RSTP, MSTP, DTRing and IEC62439-6(DRP)
  • Compliant with EN50155 with M12 connectors for onboard Ethernet switches
  • Supports DHCP, TTDP, R-NAT and static, RIP, OSPF routing features
  • Supports IGMP Snooping
  • Compliant with IEEE802.3af IEEE802.3at PoE
  • Wide range power inputs for onboard devices
  • IP40 to IP65 protection class
  • Compact DIN-Rail type industrial Ethernet-to-Fiber converter
  • Certified with EN50121/EN50155/EN45545

Product Recommendations

Case Studies



PIS/PA Networking Solutions