BS EN 61375-2-3:2015 specifies rules for the data exchange between consists in trains. The aggregation of these rules defines the TCN communication profile.

The objective of the communication profile is to ensure interoperability between consists of the said trains with respect to the exchange of information. For this it defines all those items which are necessary for communication interoperability:

• an architecture with defined train directions related to different train views
• a common functional addressing concept
• common communication protocol for data exchange between functions
• a set of services for train communication control.

As a restriction, this communication profile is adhered to the Ethernet Train Backbone (ETB) technology as defined in IEC 61375-2-5. Towards the consist networks, a more abstract interface is defined which does not restrict the appliance of any consist network technology as for instance MVB (IEC 61375-3-1), CANOpen (IEC 61375-3-3) or ECN (IEC 61375-3-4).

It is not within the scope of the communication profile to define application data content and its meaning (e.g. syntax and semantics). This is within the responsibility of the application profiles. Namely two application profiles are explicitly supported as shown in Figure 1: the TCMS application profile as defined in IEC 61375-2-4, and the onboard multimedia and telematic services (OMTS) related profiles as defined in the IEC 62580 series.


Cross References:
IEC 61375-1
EN 61375-1
IEC 61375-2-1
EN 61375-2-1
IEC 61375-2-4
IEC 61375-2-5
EN 61375-2-5
IEC 62280
ISO/IEC 9646-6:1994
ISO/IEC 9646-7:1995
ISO/IEC 17011:2004
EN ISO/IEC 17011:2004
ISO/IEC 17025:2005
EN ISO/IEC 17025:2005
IEC 61131-3:2013
EN 61131-3:2013
IEC 61375-3-4
EN 61375-3-4
IEC 61508-1:2010
EN 61508-1:2010
IEC 61784-3-3:2010
EN 61784-3-3:2010
IEC 62580
EN 62580
ISO/IEC 7498-1
EN ISO/IEC 7498-1
IEC 60571
ISO/IEC 9834-1:2012
EN 15380-4
UIC 550:2005
UIC 550-1
UIC 556:2010
IETF RFC 768
IETF RFC 791
IETF RFC 793
IETF RFC 956
IETF RFC 1034
IETF RFC 1035
IETF RFC 2326
IETF RFC 2616
IETF RFC 2663
IETF RFC 2766
IETF RFC 3022
IETF RFC 3261
IETF RFC 3550
IETF RFC 3605
IETF RFC 3711
IETF RFC 3986
IETF RFC 4122
IETF RFC 5246


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