Signalling & Train Control Systems
Automatic Train Control
ERTMS/ETCS has been designed to meet the railways’ needs and this is reflected by the different levels available.
ERTMS/ETCS Level 1
ERTMS/ETCS Level 1 is an add-on system designed to work on existing conventional railway lines already equipped with lineside signals and train detectors. Especially Level 1 Limited Supervision offers a cost-effective way to upgrade safety and interoperability without completely replacing existing infrastructure. Communication between the track and the train is ensured by dedicated balises (known as “Eurobalises®”) located on the trackside adjacent to the lineside signals at required intervals, and connected to the train control centre.
Receiving the movement authority through Eurobalises, the ETCS onboard equipment automatically calculates the maximum speed of the train and the next braking point, taking into account the train braking characteristics and the track description data. This information is displayed to the driver through a dedicated screen in the cabin.
The speed of the train is continuously supervised by the ETCS onboard equipment.
The system energizes the balise and acquires telegrams transmitted from both the balise and Euroloop. It features auto-diagnostic capabilities and operates within a temperature range of -40°C to 70°C.
The system provides odometer functionality, runs the software application, and collects diagnostic information. It also features auto-diagnostic capabilities and operates within a temperature range of -25°C to 70°C.
The system interfaces with the engine-driver, features auto-diagnostic capabilities, and operates within a temperature range of -25°C to 70°C.
The system digitally acquires interlocking status, communicates via Euroradio+, and associates each status with a coded 1023-bit telegram. It transmits telegrams to Eurobalises, monitors the Wayside Subsystem, logs anomalies, and sends diagnostic messages to the station center. Auto-diagnostic included.
The system acquires signal status by measuring electrical currents from the interlocking to the lights, associates the status with a coded telegram, and transmits it to Eurobalises or a microwave transponder. It sends diagnostic messages to the station’s diagnostic center via the same cable. Auto-diagnostic included.
When energized by RSDD Antenna, the system sends a telegram to passing trains. It is Class A, with auto-diagnostic capabilities, and operates within a temperature range of -40°C to 85°C.
ERTMS/ETCS Level 1
ERTMS/ETCS Level 1 is an add-on system designed to work on existing conventional railway lines already equipped with lineside signals and train detectors. Especially Level 1 Limited Supervision offers a cost-effective way to upgrade safety and interoperability without completely replacing existing infrastructure. Communication between the track and the train is ensured by dedicated balises (known as “Eurobalises®”) located on the trackside adjacent to the lineside signals at required intervals, and connected to the train control centre.
Receiving the movement authority through Eurobalises, the ETCS onboard equipment automatically calculates the maximum speed of the train and the next braking point, taking into account the train braking characteristics and the track description data. This information is displayed to the driver through a dedicated screen in the cabin.
The speed of the train is continuously supervised by the ETCS onboard equipment.
The system energizes the balise and acquires telegrams transmitted from both the balise and Euroloop. It features auto-diagnostic capabilities and operates within a temperature range of -40°C to 70°C.
The system provides odometer functionality, runs the software application, and collects diagnostic information. It also features auto-diagnostic capabilities and operates within a temperature range of -25°C to 70°C.
The system interfaces with the engine-driver, features auto-diagnostic capabilities, and operates within a temperature range of -25°C to 70°C.
The system digitally acquires interlocking status, communicates via Euroradio+, and associates each status with a coded 1023-bit telegram. It transmits telegrams to Eurobalises, monitors the Wayside Subsystem, logs anomalies, and sends diagnostic messages to the station center. Auto-diagnostic included.
The system acquires signal status by measuring electrical currents from the interlocking to the lights, associates the status with a coded telegram, and transmits it to Eurobalises or a microwave transponder. It sends diagnostic messages to the station’s diagnostic center via the same cable. Auto-diagnostic included.
When energized by RSDD Antenna, the system sends a telegram to passing trains. It is Class A, with auto-diagnostic capabilities, and operates within a temperature range of -40°C to 85°C.
ERTMS/ETCS Level 2
ERTMS/ETCS Level 2 is a radio based signalling system which displays signalling and movement authorities in the cab, eliminating the need for lineside signals. Movement authority is communicated directly from a Radio Block Centre (RBC) to the onboard unit via GSM-R/ FRMCS radio, but train detection and the train integrity supervision remain in place at the trackside.
The onboard computer continuously monitors data from passive balises and the RBC to determine its position and maximum permissible speed.
This continuous stream of data informs the driver of line-specific information and signals status on the route ahead, allowing the train to reach its maximum or optimal speed while maintaining a safe braking distance.
The system energizes the balise and acquires telegrams transmitted from both the balise and Euroloop. It features auto-diagnostic capabilities and operates within a temperature range of -40°C to 70°C.
Applies Automatic Train Protection logic, interfaces with the train’s main functions (e.g., odometry), manages vital functions of the on-board subsystem, and supports diagnostic maintenance of the on-board system.
LCD touch screen panel for driver interaction, providing control and indication functions.
The platform uses a 2oo2HR architecture with two independent, galvanically isolated processing sections, each with a pair of processors in 2oo2 configuration. It interfaces with ground subsystems (IXL, RBC, Supervision) via Ethernet cards and with GSM-R through ISDN cards and Euroradio protocol.
ERTMS/ETCS Level 2
ERTMS/ETCS Level 2 is a radio based signalling system which displays signalling and movement authorities in the cab, eliminating the need for lineside signals. Movement authority is communicated directly from a Radio Block Centre (RBC) to the onboard unit via GSM-R/ FRMCS radio, but train detection and the train integrity supervision remain in place at the trackside.
The onboard computer continuously monitors data from passive balises and the RBC to determine its position and maximum permissible speed.
This continuous stream of data informs the driver of line-specific information and signals status on the route ahead, allowing the train to reach its maximum or optimal speed while maintaining a safe braking distance.
The system energizes the balise and acquires telegrams transmitted from both the balise and Euroloop. It features auto-diagnostic capabilities and operates within a temperature range of -40°C to 70°C.
Applies Automatic Train Protection logic, interfaces with the train’s main functions (e.g., odometry), manages vital functions of the on-board subsystem, and supports diagnostic maintenance of the on-board system.
LCD touch screen panel for driver interaction, providing control and indication functions.
The platform uses a 2oo2HR architecture with two independent, galvanically isolated processing sections, each with a pair of processors in 2oo2 configuration. It interfaces with ground subsystems (IXL, RBC, Supervision) via Ethernet cards and with GSM-R through ISDN cards and Euroradio protocol.
ETCS Level STM
Trains equipped with ETCS can operate on lines using a class B system. ETCS serves as an interface between the driver and the national ATP. With the national system’s Specific Transmission Module (STM) installed, ERTMS/ETCS trains can use services on STM-equipped lines. MERMEC’s ETCS OBU interfaces with STM via the STM FFFIS bus or custom interfaces, with the option to integrate STM functions into the OBU for a bi-standard solution.
The system energizes the balise and acquires telegrams transmitted from both the balise and Euroloop. It features auto-diagnostic capabilities and operates within a temperature range of -40°C to 70°C.
The system provides odometer functionality, runs the software application, and collects diagnostic information. It also features auto-diagnostic capabilities and operates within a temperature range of -25°C to 70°C.
The system interfaces with the engine-driver, features auto-diagnostic capabilities, and operates within a temperature range of -25°C to 70°C.
The platform uses a 2oo2HR architecture with two independent, galvanically isolated processing sections, each with a pair of processors in 2oo2 configuration. It interfaces with ground subsystems (IXL, RBC, Supervision) via Ethernet cards and with GSM-R through ISDN cards and Euroradio protocol.
The system digitally acquires interlocking status, communicates via Euroradio+, and associates each status with a coded 1023-bit telegram. It transmits telegrams to Eurobalises, monitors the Wayside Subsystem, logs anomalies, and sends diagnostic messages to the station center. Auto-diagnostic included.
The system acquires signal status by measuring electrical currents from the interlocking to the lights, associates the status with a coded telegram, and transmits it to Eurobalises or a microwave transponder. It sends diagnostic messages to the station’s diagnostic center via the same cable. Auto-diagnostic included.
When energized by RSDD Antenna, the system sends a telegram to passing trains. It is Class A, with auto-diagnostic capabilities, and operates within a temperature range of -40°C to 85°C.
ETCS Level STM
Trains equipped with ETCS can operate on lines using a class B system. ETCS serves as an interface between the driver and the national ATP. With the national system’s Specific Transmission Module (STM) installed, ERTMS/ETCS trains can use services on STM-equipped lines. MERMEC’s ETCS OBU interfaces with STM via the STM FFFIS bus or custom interfaces, with the option to integrate STM functions into the OBU for a bi-standard solution.
The system energizes the balise and acquires telegrams transmitted from both the balise and Euroloop. It features auto-diagnostic capabilities and operates within a temperature range of -40°C to 70°C.
The system provides odometer functionality, runs the software application, and collects diagnostic information. It also features auto-diagnostic capabilities and operates within a temperature range of -25°C to 70°C.
The system interfaces with the engine-driver, features auto-diagnostic capabilities, and operates within a temperature range of -25°C to 70°C.
The platform uses a 2oo2HR architecture with two independent, galvanically isolated processing sections, each with a pair of processors in 2oo2 configuration. It interfaces with ground subsystems (IXL, RBC, Supervision) via Ethernet cards and with GSM-R through ISDN cards and Euroradio protocol.
The system digitally acquires interlocking status, communicates via Euroradio+, and associates each status with a coded 1023-bit telegram. It transmits telegrams to Eurobalises, monitors the Wayside Subsystem, logs anomalies, and sends diagnostic messages to the station center. Auto-diagnostic included.
The system acquires signal status by measuring electrical currents from the interlocking to the lights, associates the status with a coded telegram, and transmits it to Eurobalises or a microwave transponder. It sends diagnostic messages to the station’s diagnostic center via the same cable. Auto-diagnostic included.
When energized by RSDD Antenna, the system sends a telegram to passing trains. It is Class A, with auto-diagnostic capabilities, and operates within a temperature range of -40°C to 85°C.
Radio Block Centre (RBC)
The Radio Block Centre (RBC) ensures safe operations by generating Movement Authorities (MA) in ETCS Level 2 architecture. It acts as the radio interface between trains and interlocking systems, managing train distancing by receiving position data from trains and sending MA via radio. RBC is a SIL4-compliant system that integrates with Computer-Based Interlocking, Supervision Systems, and train data. It uses two independent, galvanically isolated processing sections and interfaces with ground subsystems via Ethernet, GSM-R, and Euroradio protocols. RBC supports future upgrades to ERTMS Level 3+ and CBTC functions.
Radio Block Centre (RBC)
The Radio Block Centre (RBC) ensures safe operations by generating Movement Authorities (MA) in ETCS Level 2 architecture. It acts as the radio interface between trains and interlocking systems, managing train distancing by receiving position data from trains and sending MA via radio. RBC is a SIL4-compliant system that integrates with Computer-Based Interlocking, Supervision Systems, and train data. It uses two independent, galvanically isolated processing sections and interfaces with ground subsystems via Ethernet, GSM-R, and Euroradio protocols. RBC supports future upgrades to ERTMS Level 3+ and CBTC functions.
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