Rail News

SIEMENS and DAMM Complete Testing of ETCS-over-TETRA Packet Data

SIEMENS and DAMM have together successfully implemented and tested an open and interoperable Tetra packet data solution which complies with the demands for ETCS (European Train Control System) Level 2.

The tests were mainly focused on bandwidth requirements and the reliability of data delivery. They were performed according to UNISIG Subset-093 (PS version) – the communication requirement specification for ETCS describing the worst-case conditions for ETCS communication. The picture shows test architecture:

ETCS-over-TETRA Data Solution
The figure above shows ETCS-over-TETRA Architecture. Photo Credit: DAMM

ETCS-over-Tetra Packet Data

Siemens decided to use packet data as this service provides scalable and sufficient bandwidth for ETCS level 2. Furthermore, unlike circuit-switch service the data are fully interoperable between vendors of a train-borne OBU (onboard unit) and a wayside RBC (radio broadcast centre) along the rail track.

The solution tested provided two dimensions of interoperability. First the interoperability between Tetra vendors who have completed interoperability tests for packet data. Secondly, the interoperability between OBU and wayside RBC vendors secured by the use of standard ETCS L2, which is also specified for GSM-R packet data. Within the solution tested the standard was kept; the main change was the replacement of the GSM-R hardware with TETRA hardware. In this way the SIL (safety integrity level) was kept between both train-borne OBU and wayside RBC.

Results of these tests have proven that data transmission quality in both directions was always above requirements of the standard and that TETRA delivered equal or even better results than a GSM-R system.

Sven Hagenbuck, responsible for Siemens Mobility sales in Australia, explained:

“Thanks to the easy integration based on a pure IP interface and the longer life time expectation of TETRA systems, this solution can be beneficial or be an alternative, wherever GSM-R is not mandatory due to authority regulations”

DAMM and SIEMENS are proud of the achieved results. In order to receive more information about the benefits of ETCS over TETRA packet data please contact SIEMENS or DAMM.

FOR ALL THE LATEST INFORMATION, NEWS, IMAGES, VIDEOS AND DOCUMENTS FROM DAMM PLEASE CLICK HERE.

News categories

05 Sep 2018
The Digital Railway: ETCS to be Installed on East Coast Main Line
28 Aug 2018
Leo Express Second-Largest Open-Access Operator in Germany
14 Aug 2018
Netherlands: State Railway Operator Upgrades Trains for Passengers with Disabilities
18 Jul 2018
Alstom Shareholders Approve Siemens Merger and Other Resolutions
09 Jul 2018
Taiwan: Siemens Consortium Wins Metro Line Rail Technology Contract
19 Jun 2018
London: Siemens to Supply Trains for Deep Tube Upgrade Programme
13 Jun 2018
The Proposed Alstom-Siemens Merger Presses Ahead
25 May 2018
Bangkok’s Suburban Train will Boost its Capacity by up to 40% with Thales
Subscribe to Railway-News
Get the latest contract alerts and Railway News emailed directly to your inbox.

We respect your privacy and take protecting it seriously.

Please tick to confirm you would like to receive emails we think may be of interest to you. We sometimes tailor the content you see to what we think you'll find interesting, and so monitor your interaction with our website and email content (find out more).