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Data Acquisition and Recording 

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HaslerRail TELOC®

In the event of an accident, data recording systems play a crucial role in determining the root cause. More recently, analyzing recorded data proactively has emerged as an effective means of preventing accidents. HaslerRail’s data recording system is suitable for both of these uses.

 The HaslerRail TELOC® data recording system delivers all of the functions required by the rail market, from data acquisition to recording, including juridical data recording (JRU) for ETCS and other signalling systems. The highly-customizable system is ideal for main-line locomotives, high-speed trains, suburban units, metro cars, and mountain railways and light rail vehicles.

The HaslerRail TELOC® data recording system is built on a modular architecture that can be tailored to individual vehicles, projects, and environments, covering a full range of functions. Our engineers can configure the system to give you a high level of customization and freedom. In addition, because specific software is not required for each project, you can respond quickly when modifications or adjustments are needed.


Our modules include different types of Crash Protected Memory, as well as modules to enable a variety of input and output capabilities for wired signals and all types of bus interfaces (MVB, CAN, Profibus, Serial, etc.). We also offer the SABOB (Safety Board) card, with dedicated safety functions up to SIL2 and SIL4.

We can provide a range of peripheral devices, including a badge reader for gathering driver ID information and execution of specific functions based on the driver ID, and voice and video recorders. Finally, our gateway enables automated on-board to off-board data transfer through selectable communication channels.

All recorded data is analyzed using our proprietary EVA+ evaluation suite. The software is used to reconstruct events and evaluate predefined patterns.


The TELOC® event recorders are available with different enclosure designs to comply with form-fit requirements.

Main Benefits:

  • Data recording system with long service history

  • Combined recording of ETCS and conventional data

  • Large number of interfaces available

  • Modular architecture for a high degree of customisation

  • EN50126-certified safety functions available

  • Configured to your requirements by our experts

  • Expert customer support team

  • Easy data download with USB stick

Product Details:

  • Power supply: wide range, U_ = 24 .. 110 V

  • Usable memory size: up to 4 GB, depending on customer needs

  • Number of memories and their size freely configurable

  • Protection degree: IP 20, other available

  • Interfaces: MVB, CAN, Profibus, RS485, Ethernet protocols

  • Data download with USB Type A

  • ETCS support for Baseline 2 and Baseline 3

  • Standards: EN 50155, IEEE 1482.1, AS 7527

  • Software and configuration update in the field through service interface

  • Several diagnostic function available

Our Product Range:

  • Data / Event Recorders – Juridical Recording Units (JRU)

  • SIL2 to SIL4 Functions

  • Badge Readers

  • Voice and Video Acquisition

  • Data Evaluation

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