
TCN Gateways
Our TCN Gateways empower you with unparalleled flexibility. With the ability to combine modules as desired, you can tailor your TCN Gateways to precisely match the interfaces and functions required for your specific needs.
These TCN Gateways can also be used for SIL 2 Safety Gateways. One example is for use in European Train Control System (ETCS) applications, serving as a Train Interface Unit (TIU) gateway that connects the ETCS On-Board Unit (OBU) with the existing TCMS. This enables seamless integration of legacy fleets with advancements in ETCS technology.

Build TCN Gateways using the following modules
An EKE-Trainnet® TCN Gateway usually consists of a Central Processing Unit (CPU), at least one bus interface module, a power supply and a rack.
Modular Concept
EKE-Trainnet® TCN Gateways are modular, enabling you to precisely select the train bus and vehicle bus technologies you require. Modules can be combined for a very flexible and versatile solution. The modular design enables you to select only the features you need for a cost efficient solution. It also means repairs and upgrades are quick and easy.
Below is an example of a TCN gateway made up of a selection of common modules.

CPU with Graphical Display Controller (CPG)
Supports both analogue and digital displays
Wire Train Bus Interface with Fritting (WTF)
Implements the WTB link layer functions of the IEC 61375-2-1 Train Communications Network (TCN) standard
CAN Vehicle Bus Interface (CVB)
Used to create up to two CAN Buses in the train.
Power Supply Unit for VME (PSV)
Provides power
Power Input Unit (PIU)
Used to pass train battery voltage to the EKE-Trainnet® Power Supply Unit for VME (PSV) module
SIL 2 Safety Gateways
EKE-Trainnet® Gateways can be configured as SIL 2 Safety Gateways, providing a vital interface between the train’s critical systems or subsystems and the TCMS.
One example is their use as ETCS-TIU Gateways, where they serve as vital links between otherwise incompatible systems. These gateways support seamless data exchange, enabling modern ETCS functionality to be integrated with legacy rolling stock.
The Safety Gateways utilise the same hardware as the standard TCN Gateway, with enhanced functionality provided by the SVTP-2 safety communication protocol, ensuring reliable and safe data transmission.
Train and Vehicle Bus Technologies
EKE-Trainnet® TCN Gateways can combine some or all of the following bus technologies, as your needs require. Most of our TCN Gateway modules have interface connectors at the front and communicate with each other via the back plane (includes VME bus).
Wire Train Bus Interface Module
The Wire Train Bus (WTB) interface usually has two DE-9 connectors with redundant lines integrated in each connector. A version with 4 connectors is available as an option.
Wire Train Bus Interface Module with Fritting
The Wire Train Bus with Fritting (WTF) has the same features as the WTB but with fritting.
Multifunction Vehicle Bus Interface Module
The Multifunction Vehicle Bus (MVB) physical medium can be ESD+ or EMD. ESD+ and EMD have two DE-9 connectors with redundant lines integrated into each connector. The MVB can also be used as a train bus.
CAN Vehicle Bus Interface Module
The CAN Vechicle Bus (CVB) module has two DE-9 connectors and is used to create up to two CAN buses. The 2 CAN ports can be independently configured as CAN 2.0 A/B or CANopen®.
Serial Links Interface Unit
Serial Links interfaces (SIU) can be used to create Vehicle Buses even though they are commonly used for direct connection to sub-systems. The RS-485 and RS-422 physical layers are supported. Modbus and customised protocols can be used.
Ethernet Consist Network
An Ethernet Consist Network (ECN) can function as both a vehicle bus and a train bus for fixed consists.
Ethernet Train Backbone
The Ethernet Train Backbone (ETB) is a high-speed communication infrastructure used within trains to interconnect various subsystems, enabling reliable and standardised data exchange across the entire train.

Build Your Own Applications
EKE-Trainnet® TCN Gateways are built on an open-source Linux platform powered by CODESYS®. It allows you to develop custom applications.
EKE offers expertise in developing software fully or partially on your behalf. Alternatively, we provide training, tools, and guidance to support your development efforts. To ensure a secure, long-term investment, EKE can also grant intellectual property rights (IPR) for the application software.
Why Choose EKE-Electronics for TCN Gateways?
EKE’s commitment to reliability and quality ensures that our TCN Gateways deliver superior performance and integration options.

EKE has developed a comprehensive range of CPUs, bus interface modules and power supplies to accommodate most technical requirements and budgets.

EKE-Trainnet® TCN Gateways are known for their adaptability, enabling seamless integration of subsystems with different communication protocols. These gateways allow application software to control subsystem functions, running on the same train computers for a compact, cost-effective solution.

Ease of use is a key factor when choosing the right TCN Gateway for your vehicle and EKE-Trainnet® TCN Gateways are designed to prioritise user-friendly operation. They have interface connectors at the front and communicate with each other via the backplane, which includes a VME bus. Mechanical coding of DE-9 connectors is available as an option.