ALSTOM 12004-102-01 VPS BOARD VER.C

Description

Product Description

The ALSTOM 12004-102-01 VPS BOARD VER.C is a specific hardware assembly and version identifier for a Vehicle Power Supply (VPS) board within an Alstom rail control system. This model functions as a critical power conversion and distribution module, designed to generate clean, regulated low-voltage DC power from the vehicle’s main supply for sensitive electronic control units. The ALSTOM 12004-102-01 VPS BOARD VER.C is responsible for providing stable logic power to onboard computers, sensors, and communication modules, ensuring their reliable operation amidst the electrical noise of a train. The version code VER.C indicates a specific hardware revision, which is crucial for compatibility with the vehicle’s power architecture and connected loads. Implementing the correct 12004-102-01 VPS BOARD VER.C is essential for maintaining the power integrity and overall functionality of the vehicle’s electronic systems.

Product Parameters

• Manufacturer / Brand: Alstom

• Product Type: Vehicle Power Supply (VPS) Board / DC/DC Converter Module

• Assembly/Part Number: 12004-102-01

• Function: VPS BOARD (Vehicle Power Supply Board)

• Hardware Revision: VER.C

• Input Voltage: Accepts a primary DC input voltage from the vehicle’s battery or main line, typically a high voltage (e.g., 72V DC, 110V DC) as per EN 50155.

• Output Voltages: Provides one or more isolated and regulated DC output voltages, such as +24V DC, +15V DC, +5V DC, and ±12V DC, to power different electronic circuits.

• Output Power/Current: Rated for a specific total power output (e.g., 100W, 200W) with defined current limits for each output rail.

• Protection Features: Includes comprehensive protections: input under/over-voltage lockout, output over-current, short-circuit, and over-temperature protection.

• Efficiency: High conversion efficiency to minimize heat dissipation and conserve energy.

• Communication & Monitoring: May provide basic status signals (Power Good, Fault) to the vehicle control system and feature LED indicators for local diagnosis.

• Mounting: Designed as a printed circuit board (PCB) for installation into a dedicated slot or enclosure within a vehicle control cabinet.

Advantages and Features

• Stable and Clean Power Delivery: The ALSTOM 12004-102-01 VPS BOARD VER.C ensures a stable voltage supply, which is critical for the fault-free operation of digital control systems susceptible to noise.

• High Reliability in Harsh Environment: Engineered to meet railway standards for vibration, shock, temperature, and electromagnetic compatibility (EMC), ensuring uninterrupted operation.

• Integrated Safety Protections: Multiple built-in electronic safeguards protect both the supply itself and the expensive downstream electronic equipment from damage due to electrical faults.

• Compact and Integrated Design: Consolidates multiple voltage rails into a single module, saving space and simplifying the vehicle’s power distribution wiring.

• Clear Revision Control: The VER.C designation allows for precise tracking of hardware changes, ensuring that maintenance replacements are electrically and mechanically compatible.

• Designed for Railway Application: Specifically tailored for the electrical environment and form factors of Alstom rolling stock.

Application Cases in Key Fields

• Onboard Train Control Units: Provides primary logic power to the Vehicle Control Unit (VCU), Traction Control Unit (TCU), and other vital control computers in metros, trams, and mainline trains.

• Vehicle Communication Systems: Powers the core electronics of the Multifunction Vehicle Bus (MVB) nodes, gateways, and network switches.

• Sensor and Actuator Power Distribution: Serves as the central power source for distributed I/O modules, sensor clusters, and actuator drivers throughout the vehicle.

• Auxiliary Control Cabinets: Used in auxiliary converter control panels to power the regulation and monitoring electronics.

Comparison with Competing Products

Competing products would be generic industrial DC/DC converter modules from companies like TDK-Lambda, XP Power, or Traco Power. While these may match the basic input/output specifications, the ALSTOM 12004-102-01 VPS BOARD VER.C is distinguished by its application-specific design. It is mechanically designed to fit a specific Alstom chassis, includes the precise combination of output voltages required by the vehicle’s electronics, and has been rigorously tested and validated for the unique EMC and environmental profile of a railway vehicle. A generic converter would require a custom mounting solution, external filtering, and may not have the necessary approvals or long-term supply guarantee for railway use.

Selection Suggestions and Precautions

• Exact Revision Matching is Critical: The VER.C revision must be matched precisely. A board with VER.B or VER.D may have different component layouts, output characteristics, or connector pinouts, leading to incompatibility or failure.

• Verify Input Voltage Range: Confirm that the primary DC input voltage of your vehicle matches the specified input range of the VPS BOARD. Applying an incorrect input voltage can cause immediate damage.

• Check Total Load Requirements: Calculate the total current required on each output voltage rail by all connected devices. Ensure the 12004-102-01 board’s rated output current for each rail is not exceeded.

• Inspect for Physical Damage: Upon receipt, carefully inspect the board for any signs of physical damage or blown components before installation.

• Follow ESD and Handling Procedures: Treat as an ESD-sensitive assembly. Use proper grounding and handle by the edges to avoid damaging components.

• Source from Authorized Rail Distributors: Given its critical role and specific design, procure the ALSTOM 12004-102-01 VPS BOARD VER.C only from Alstom’s official service network or authorized railway component suppliers to ensure authenticity and correct documentation.

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