Description
Technical Specifications
- Product Model: IOBUS2 12004-103-01 VERV1.20
- Brand: ALSTOM
- Warranty: One Year
- Input Voltage: 24 VDC ±10%
- Operating Temperature: -40°C to +85°C
- Storage Temperature: -40°C to +85°C
- Response Time: Deterministic data routing with <1 µs jitter
- Protection Class: Industrial rail-grade communication module
- Accuracy Class: High-reliability communication gateway with deterministic timing
- Output Frequency: Ethernet communication up to 100 Mbps full-duplex
- Rated Current Range: Low-power embedded communication module
- Communication Interface: Ethernet, MVB (Multifunction Vehicle Bus), CANopen
- Supported Protocols: MVB, Ethernet/IP, CANopen industrial communication protocols
- Overload Capacity: 1500 VAC chassis-to-bus electrical isolation
- Redundancy: Dual hot-swappable module support
- Certifications: EN 50155, EN 61373, IRIS railway standards
- Mounting Type: Installed within train communication and control system racks
- Dimensions: Compact rail-system module design for onboard control equipment
Product Overview
The IOBUS2 12004-103-01 VERV1.20 is a train communication gateway module designed for onboard railway control systems. Developed by ALSTOM for modern Train Control and Monitoring Systems (TCMS), the module provides protocol conversion and communication routing between different onboard network standards such as MVB, Ethernet, and CAN-based control networks.
In railway automation systems, multiple subsystems—including traction control, passenger information systems, door control units, and braking systems—must exchange data in real time. These subsystems often operate on different communication protocols. This gateway module bridges those networks, enabling deterministic data exchange and centralized control coordination across the train network.
The module supports high-speed Ethernet communication up to 100 Mbps and provides deterministic data routing with extremely low jitter, which is critical for time-sensitive train control applications. Its rugged hardware design complies with railway standards such as EN 50155 for rolling-stock electronics and EN 61373 for vibration resistance, ensuring reliable operation in harsh rail environments including vibration, temperature fluctuations, and electromagnetic disturbances.
Key Functions
Multi-Protocol Network Gateway
The module converts and routes data between MVB, Ethernet/IP, and CANopen communication networks. This allows different onboard subsystems to communicate within a unified train control architecture.
Deterministic Real-Time Data Transmission
With extremely low communication jitter and high-speed Ethernet support, the gateway ensures reliable and predictable data exchange required for safety-critical railway operations.
Electrical Isolation and Surge Protection
The module provides 1500 VAC isolation between the chassis and bus interface, protecting sensitive communication circuits from electrical disturbances common in railway power systems.
Redundant System Operation
Dual hot-swappable module capability supports redundant system architectures. This ensures continuous operation of train communication networks even if one module fails.
Remote Diagnostics and Monitoring
Integrated diagnostics allow system engineers to monitor module status and network performance remotely through system management interfaces.
Application Scenarios
Train Control and Monitoring Systems (TCMS)
Modern trains rely on TCMS networks to manage onboard subsystems. The module acts as a communication bridge between different network segments within the train.
Metro and High-Speed Rail Systems
Railway vehicles operating in metro and high-speed environments require reliable real-time communication between traction control, braking, and passenger systems.
Door Control and Passenger Information Systems
The module allows door control units, display systems, and onboard diagnostics to communicate with central train controllers over integrated communication networks.
Railway Safety and Diagnostics Systems
Railway maintenance platforms use communication gateways to collect operational data from onboard subsystems, supporting predictive maintenance and fault diagnostics.
