EKE-Electronics - CAN Gateway

CAN Gateway

TECHNICAL SPECIFICATIONS

functions

key features

build your gateway

EKE Trainnet® MVB - CAN - Ethernet Gateway

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Standards:
EN 50155
EN 45545
IEC 61375-3-3
Dimensions, weight and MTBF:
Depends on selected rack and installed modules
Input Voltage:
24, 36, 48, 52, 72 or 110 V DC
Temperature Range (operational):
-40 °C…+70 °C
Interfaces:

CAN

Interface Options:

WTB, MVB, Ethernet, Serial Links

The Trainnet® CAN Gateways are used to create train consist networks. CAN gateways come with at least one CAN interface module which implements the CAN link layer functions.

The modular design of the gateways enables the addition of other CAN interfaces as well as other bus interfaces such as WTB, MVB, Ethernet or Serial Link. The most common is the WTB-CAN gateway. However, EKE’s technology allows development of MVB-CAN gateways, CAN-Ethernet Gateways and even WTB-MVB-CAN-Ethernet-Serial Link Gateways. Input/Output modules can be added to the same rack to build a complete coach computer.

A Trainnet® CAN Gateway includes of at least one Trainnet® CAN Vehicle Bus Interface Module (CVB). The Trainnet® CVB is used to create up to two CAN Buses in the train. The 2 CAN ports can be independently configured as CAN 2.0 A/B or CANopen. In addition to the CVB module, the gateway must also have a Central Processing Unit (CPU) and a power supply.

The routing between the CAN bus and other buses are implemented by the gateway CPU Module. The CPU can control more than one Trainnet® CVB module to implement physically separated CAN networks. As described above, additional bus interface modules and I/O cards can be added to provide additional capabilities.

EKE has developed a comprehensive range of CPUs and bus interface modules to accommodate most technical requirements and budgets. General instructions on how to build your gateway are available at the bottom of the page, listing the most common modules you may need for your CAN gateway. Please contact us to discuss which architecture and modules meet best your requirements.

The Trainnet® CAN Gateways are usually provided as fully integrated systems, fitting in either 44TE or 84TE wide rack (smaller upon request). The rack height is typically 3U or 6U. The Trainnet® Gateways are designed with ease of use in mind. Trainnet® modules have interface connectors at the front and communicate with each other via the back plane (except the Ethernet modules ERU and ESU). Mechanical coding of D-9 connectors is available as an option. Other modules such as Event Recorders can also be integrated to the same rack for a compact and cost-efficient system.

Published on: 2017-03-02

STEP 1. Choose a CPU
The CPU manages the gateway functionalities. It can:
→ Manage gateway modules and connected train sub-systems
→ Implement and control the train Passenger Information System (PIS)
→ Carry out sub-system diagnostics and log events
→ Run train crew HMI Software Applications (CPG only)
→ Run the ISaGRAF® PLC Software to develop automation and functional applications

Central Processing Unit with Graphical Display Controller (CPG)
To be used if you need:
- 1 DVI-I port
- 1 audio output
- 2 Ethernet ports
- 2 or 3 RS-485 ports

Central Processing Unit with Serial Links (CPS, CPF)
To be used if you need:
- 1 Ethernet port
- 3 RS-485 ports
- 1 USB interface

Central Processing Unit with Serial Links and GPS (CPS-GPS)
To be used if you need:
- 1 Ethernet port
- 3 RS-485 ports
- 1 USB interface
- 1 integrated GNSS receiver

AND
(option)

Ethernet Train Computer (ETC)
(acts as CPU and Ethernet switch)
To be used if you need:
- 10 Ethernet ports

Onboard Mobile Gateway (OMG)
To be used if you need:
- 1 GNSS receiver (GPS)
- Wi-Fi Connectivity
- LTE Connectivity (3G, 4G)

The Trainnet® Gateways are modular. Modules are inserted in a rack of suitable size and features (see Step 5 for common rack sizes).
The information below will give you a good overview of possible gateway configurations.
Other options exist and we recommend you to contact us to develop the most efficient solution for your needs.

STEP 2. Add the bus interface modules that you need Trainnet® Gateways are modular: you can add only the bus interface modules you need, for cost-efficiency. It is possible to combine them freely, even adding several similar modules.
	AND /OR		AND /OR		AND /OR
Wire Train Bus Interface Module (WTB, WTF) Available modules: a) 2 x2 non-isolated connectors b) 4 isolated connectors c) 4 isolated connectors with fritting		Multifunction Vehicle Bus Interface Module (MVB) Available modules: a) ESD+ b) EMD c) OGF		CAN Vehicle Bus Interface Module (CVB) Option: Integrated bus termination resistors

	AND /OR		AND /OR
Ethernet Router Unit (ERU) To be used if you need: - Ethernet router & switch (10 ports) - Ethernet Train Bus (ETB) - Ethernet Consist Network (ECN)		Ethernet Switching Unit (3U ESU) To be used if you need: - Ethernet switch (10 ports) - Ethernet Consist Network (ECN) - Ethernet Train Backbone Node (ETBN) for fixed consist		Ethernet Switching Unit (1U ESU) To be used if you need: - Power-over-Ethernet (12 ports) - Ethernet switch (15 ports) - Ethernet Consist Network (ECN) - Ethernet Train Backbone Node (ETBN) for fixed consist

Unmanaged Ethernet Switching Unit (UM-ESU) To be used if you need: - Unmanaged switch (8 ports)		Serial Links Interface Unit (SIU) To be used if you need: a) 8 x RS-485 half or full duplex b) 6 x RS-485 half or full duplex and 2 x RS-232

STEP 4. Add the appropriate Power Supplies
Most systems can be powered using the Trainnet® PSV and Trainnet® PIU modules.
However, EKE also has other solutions: contact us for full details.

AND

AND
/OR

Power Supply Unit for VME (PSV)

Description:
- Provides 5 V DC and 12 V DC output to power the gateway
- Operated with 24, 36, 48, 52, 72 and 110 V DC via the Trainnet® PIU

Power Input Unit (PIU)

Description:
- Pass the train battery voltage to the Trainnet® PSV module
- Input voltage can be 24, 36-52, 72 or 110 V DC

Option:
- 12 V DC output connector

Power Supply Over Ethernet (PSE)

Description:
- Provides power to the Trainnet® 1U ESU for its PoE functionality
- Input voltage is 36-52 or 110 V DC
- Output power is 48 V DC

STEP 5. Choose the appropriate rack for your System Our most common racks are listed below. Contact us for further needs.
	OR		OR		OR
3U 20TE Rack Option: - Side mounting		3U 44TE Rack		3U 84TE Rack Option: - Dual VME back plane for a redundant system

	OR		OR		OR
6U 84 TE Rack Option: - Dual VME back plane for a redundant system		3U 16TE Flat Rack		6U 12TE Flat Rack


6U 16TE Flat Rack