Ethernet TBN IEC 61375 System - Ledatel

A reliable network connecting all subsystems and devices installed in the vehicle. 
The nervous system of a modern train.

Safe and reliable Ethernet network which connects
all subsystems and devices installed in the vehicle.
Fully compliant with the IEC 61375 standard.

Network standards:

IEEE 802.3u Fast Ethernet
IEEE 802.3ab Gigabit Ethernet
IEEE 802.1Q Tagged VLANs
IEEE 802.1D Spanning Tree Protocol
IEEE 802.1w Rapid Spanning Tree Protocol
IEEE 802.1X Port-based network access control
IEEE 802.1AB Link Layer Discovery Protocol (LLDP)
IEEE 802.3ad Link Aggregation Protocol (LACP)

Railway standards: 

IEC 61375-2-5 – Ethernet Train Backbone (ETB)

EN 50155 – Temperature, humidity, shock, vibration and other parameters of electronic equipment used in rolling stock

EN 45545-2 – Requirements for materials and components in terms of fire performance

EN 50121-3-2 – Electromagnetic compatibility

Main features, tasks, and functionalities

  • Ethernet Train Backbone Network compliant with the IEC 61375-2-5 standard
  • Design, topology and IP network addressing
  • Routing and translation (R-NAT)
  • VLANs, IGMP, Spanning Tree Protocols (STP/RSTP) and the possibility of applying the Quality of Service (QoS) policy.
  • 10 Gb, 1 Gb and 100 Mb Ethernet ports available
  • PoE+.
  • The bypass function makes the device completely transparent to the network in the event of a voltage failure or error. This helps to avoid or reduce the negative impact of potential interruptions or malfunctions of the network
  • Ring, Linear, Ladder and Mesh topologies
  • Automatic configuration of a replaced device by means of data transferred from neighboring devices.

System components

Backbone switches TBN 5xFE or 5xGbE

Repeater- 4xFE or 4xGbE, Bypass

Integrated TBN 6xGbE+8xFE PoE/ No PoE, Bypass 

Consist Switch 14 ports, 6GB+8FE PoE/ No PoE CS 6GB+8FE

Consist Switch 28 ports, 5 x 10GbE ports/ 5 x GbE ports + 11 x GbE ports (4 PoE) + 12 x FE PoE+/No PoE