EKE-Trainnet
MVB VEHICLE BUS INTERFACE MODULE (MVB)
Enables redundant MVB bus interfaces
Conforms to IEC 61375-1 standard
ESD+ or OGF type medium
Local CPU for implementing TCN link layer functions
IEC 821 VMEbus interface for Gateway access
Features and benefits
The MVB module is the Multi-Function Vehicle Bus (MVB) interface module for EKE-Trainnet® family of products. It provides the train networking, diagnostics and control applications of the coach computer with all the necessary functions for accessing the MVB vehicle bus. Redundant bus operation is supported through to the bus interfacing ASIC circuitry and the link layer functions are implemented with the local CPU on the module. TCN Real Time Protocols will be implemented by the system CPU.
The MVB module is realised through a highly efficient combination of local microprocessor, FPGA logic and a dedicated MVB controller. Optically isolated Electrical Short Distance (ESD+) and Optical Glass Fibre medium physical interfaces are supported. EMD interface is available as an option. The interface connectors are located at the frontpanel of the module and communi-cation to the system CPU module is done via the VME back plane bus.
Properties
Standard bus connectors:
two sub D-9 connectors for ESD+
medium or four ST-bayonet fiber
connectors for OGF medium.
Utilises MVBC01 ASIC.
IEC 821 VMEbus interface for
gateway CPU access.
Technical Information:
DIMENSIONS:
4 TE × 3 U x 160 mm (W x H x D)INPUT POWER: 5 VDC ± 5% (1,0 A max, 0,5 A typ)
MTBF: 500 000 h
TEMPERATURE RANGE: Operational -40°C…+70°C
VEHICLE BUS (IEC 61375-1: MVB)
Data Rate: 1.5 Mbit/s, Manchester encoding
Medium: Optically isolated Electrical Short Distance (ESD+)
or Optical Glass Fibre (OGF).
Electrical Medium Distance (EMD) as an option.
VMEbus (IEC 821)
Interface: A24 Slave with D08(EO)/D16
256 kB DPRAM for process and message data.