Cybersecurity TCMS – Railway Systems

DataDiode - DTD

DataDiode DTD: Advanced Cybersecurity Solution for Secure Railway Communications

The DataDiode DTD from Leroy Automation is a cutting-edge railway cybersecurity solution, specifically designed to ensure secure communications in railway environments, in compliance with the EN 50155 standard. This unidirectional device blocks all communication in one direction while allowing secure data transfer in the other.

Unidirectional Data Flow for Enhanced Security of Railway Systems

The DataDiode DTD operates on the principle of unidirectional data flow, offering optimal protection against cyber threats. It enables secure data transfer while blocking unwanted communications, thereby enhancing the security of sensitive railway systems.

Protection of Critical Railway Infrastructure and Ensuring Data Integrity

Ideal for critical equipment such as remote diagnostic solutions, legal event recorders, and security information management systems (SIEM), the DataDiode DTD effectively protects railway infrastructures against intrusions. Acting as a physical barrier against cyber threats, it ensures data integrity and supports the continuity of railway operations while meeting the strict cybersecurity requirements of the railway sector.

MAIN FEATURES OF DATADIODE

EN 50155:2021 fully compliant
Hardware guaranteed unidirectional traffic
Protocol break technology
2x 100Mbits/s independent and isolated channels
Low-latency transfer (250µs)
ARP on each Ethernet interface
Operating temperature : -40°C to +70°C
Full range power supply : 24Vdc to 110Vdc
2x independent password protected maintenance ports
Dedicated network diagnosis LEDs on each Ethernet port

MECHANICAL INTEGRATION OF DATADIODE

Size-1U – half 19’’ rack-mount solution
Reduced weight (< 1Kg)
All communication ports available on front panel

TYPICAL APPLICATION OF DATADIODE

ENVIRONMENTAL QUALIFICATION TESTS OF DATADIODE

NF E 61000-4-2 2009	ESD	Enclosure contact: ±6kV Enclosure air: ±8kV	Criterion B
NF EN 61000-4-3 2020	Radiated immunity RFI	80MHz… 1GHz: 25V/m 1.4GHz… 2.1GHz: 15V/m 2.1GHz… 2.7GHz: 5V/m 5.1GHz… 6.0GHz: 3V/m	Criterion A
NF EN 61000-4-4 2013	Fast burst	±2kV direct/indirect	Criterion A
NF EN 61000-4-5 2014	Transient surge	±2kV MC ±1kV MD	Criterion B
NF EN 61000-4-6 2014	Conducted immunity RFI	150KHz…80MHz / 10Vrms	Criterion A
NF EN 55016-2-1 2014	Measuring conducted emissions	150kHz…500kHz 500kHz…30MHz	<99dBµV <93dBµV <50dBµV/m at 3m
NF EN 55016-2-3 2017	Measuring radiated emissions	230MHz…1GHz 1GHz…3GHz 3Ghz…6GHz	<57dBµV/m at 3m <76dBµV/m at 3m <80dBµV/m at 3m

NF EN 60068-2-1	2007	Cold storage	-40°C 16 hours	Criterion A
NF EN 60068-2-1	2007	Cold start	-40°C	Criterion A
NF EN 60068-2-2	2007	Dry heat	+70°C / +85°C 10min	Criterion A
NF EN 60068-2-30	2006	Damp test	+55°C 95% humidity 48 hours	Criterion A
NF EN 60068-2-14	2009	Fast temperature change	-25°C / +70°C / 5 cycles	Criterion A

NF EN 45545	2020	Railway applications /Fire protection on railway vehicles	HL3

NF EN 60068-2-64	2008	Random vibration	5…150Hz – 1.01m/ s²	Criterion A
NF EN 60068-2-64	2008	Simulated Long Life testing	5 … 150Hz – 7.9m/s² – XYZ 5 hours	Criterion A
NF EN 60068-2-27	2009	Shocks	50m/s² – XYZ – 30ms	Criterion A