I. Brand and Product Background
Brand Evolution
The industrial control business of Ansaldo was subsequently merged into Alstom. This board card was actually manufactured by Concurrent Technologies and belongs to the core CPU board of the high-end VME computing platform of Alstom/Ansaldo.
Model Interpretation
VP32502X: Basic single-board model
75x-6025-25: Hardware configuration revision number
151-0025: Complete original material order code
Form and Specification: Single-slot 6U VME64 standard Eurocard bus master control SBC, the core computing unit of the entire transmission / power plant control system.
Supply Status: The original factory has completely stopped production, the market circulation is new inventory, dismantled test refurbished items.
Core Hardware Configuration
1. Computing and Storage
CPU: Intel Pentium M 1.6GHz, 64KB first-level cache, 1MB second-level cache
Memory: Maximum 2GB 333MHz DDR ECC error-correcting memory, industrial anti-error stable architecture
Storage: Board-mounted CompactFlash card slot, 2-channel SATA150 hard disk interface, supports SSD / mechanical disk storage programs, fault logs
Expansion: Built-in PMC sub-card expansion slot, can be installed with optical fibers, synchronous acquisition, dedicated communication sub-cards
2. Front Panel External I/O Interfaces
2 independent gigabit Ethernet (10/100/1000M), redundant networking for DCS/SCADA connection
VGA video output, PS2 keyboard and mouse, 2×USB2.0, RS232 debugging serial port
Reset button, operation / fault status indicator light
3. Backplane Bus and Power Supply
Bus: VME64 high-speed parallel backplane bus, sufficient bandwidth to drive all I/O in the rack, SSI position acquisition sub-cards
Power Supply: VME standard backplane + 5V DC power supply, built-in overvoltage, overcurrent, surge protection
Heat Dissipation: Large-area passive metal heat sink, fanless enclosed control cabinet maintenance-free design
Electrical Environmental Parameters Table
Parameter items Specifications
Operating temperature -20℃ ~ +70℃ (industrial wide temperature range)
Storage temperature -40℃ ~ +85℃
Humidity 5%–95% RH without condensation, PCB with three-proof anti-corrosion coating
Shock and vibration resistance Complies with military MIL-STD-810 standard, suitable for power plant and locomotive vibration conditions
Protection level IP20 (rack-mounted in control cabinet)
Overall weight Approximately 0.65kg
System Software and Real-time Performance
Supported operating systems: VxWorks, embedded Linux, QNX real-time OS, control scan cycle of milliseconds
Protocol compatibility
Ethernet: Modbus TCP, Alstom private control protocol, TCP/IP
Serial port: Modbus RTU, terminal debugging
Backplane connection SSI absolute value encoder signal acquisition module (same platform VME-SSI sub-card)
Diagnostic capability: Full hardware self-check (CPU, memory, network port, VME bus, power supply), local flash memory retention of fault logs
Typical Industry Application Scenarios
Power generation
Alstom turbine / gas turbine main control, power plant excitation system, boiler FSSS protection computing core board; a large number of supporting large thermal power, combined cycle power plant units.
Railway locomotives
High-speed trains, subway traction drive control system, motor vector operation, speed closed-loop main control unit.
Heavy industry and metallurgy
Main drive of steel rolling production line, logic operation of large frequency conversion drive cabinet, position synchronization control (paired with SSI encoder acquisition).
Offshore engineering / ships
High-power ship main propulsion control system, FPSO platform process unit monitoring host.
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