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Phone: +86 16626708626Description
3. Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Bombardier Transportation / Alstom |
| Type Designation | DCC2382A |
| Part Number | 3EST125-975 |
| System Family | MITRAC CC / MITRAC DCU |
| Application | Rail Traction Control, Auxiliary Converter Control, Locomotive Inverter Control |
| Communication Protocols | MVB (Multifunction Vehicle Bus), CAN, Serial Maintenance Interface |
| Signal Interfaces | High-Speed Fiber-Optic Gating Signals, Encoder Inputs, Analog PWM Signals |
| Form Factor | Eurocard Multi-PCB Rack Controller Assembly |
| Operating Temperature | -40°C to +70°C (EN 50155 Rail Standard Compliant) |
| Conformal Coating | High-grade polyurethane coating for moisture, dust, and vibration isolation |
4. Product Introduction & Supply Chain Strategy
The Bombardier DCC2382A 3EST125-975 is a high-performance MITRAC Drive Control Unit (DCU) processor card responsible for high-speed gating, closed-loop vector control, and communications management in rail vehicle traction inverters. It serves as the primary processing brain for electric and diesel-electric locomotive propulsion systems.
Procuring this module as New Surplus secures critical rolling-stock replacement components without navigating multi-month OEM manufacturing queues. Maintaining on-site buffer stock for specialized MITRAC drive control modules mitigates the high Total Cost of Ownership (TCO) associated with stranded rail cars, line blockages, and unscheduled transit fleet downtime.
ESD & Optical Terminal Safety Warning
Ensure full electrostatic discharge protection (grounded wrist strap) when handling the DCC2382A card. Never touch or expose optical transceiver interfaces to dust or uncleaned fiber connectors during installation.
DCC2382A 3EST125-975
DCC2382A 3EST125-975
5. Installation & Configuration Guide
1
Pre-Installation (Prep & Safety)
Safety Prerequisite
1.Pre-Installation (Prep & Safety):Safety Prerequisite.
Execute full lock-out/tag-out (LOTO) procedures on the locomotive traction container and 110V auxiliary power supply. Attach a grounded ESD wrist strap, inspect optical patch cables for cleanliness, and document existing DIP switch configurations and jumper positions on the original card.
2
Removal
Card Extraction
2.Removal:Card Extraction.
Unscrew the card retention fasteners on the subrack top and bottom margins. Disconnect front-panel optical transceivers, DB-9 maintenance connections, and field terminal plugs. Carefully actuate the card ejector handles to pull the board straight out along the guide rails without damaging backplane pins.
3
Installation (Clone & Seat)
Hardware Setup
3.Installation (Clone & Seat):Hardware Setup.
Verify that all address DIP switches and configuration jumpers on the new DCC2382A match the pulled unit exactly. Align the replacement module with the subrack card guides and slide it firmly inward until the backplane connectors fully seat. Lock the card ejector handles and torque retention screws.
4
Power-On & Testing
System Verification
4.Power-On & Testing:System Verification.
Reconnect front-panel fiber-optic transceivers and field communication plugs. Restore 110V DC control power, observe the power-on self-test (POST) LEDs, and confirm the module establishes an active MVB heartbeat on the vehicle diagnostic network without raising gating fault flags.
6. Firmware/Software Versions & Upgrade Notes
- Firmware Dependencies: The DCC2382A relies on application-specific propulsion control parameter sets flashed to onboard non-volatile memory or loaded via the vehicle control unit (VCU).
- Compatibility Requirements: Firmware build versions must match the specific inverter hardware topology (IGBT vs. GTO) and vehicle wheel-diameter configuration parameters programmed in the train management system.
- Swap Warning: Never swap drive control units between different vehicle series without verifying software compatibility. Running mismatched parameter sets can trigger inverter shoot-through faults, overcurrent trips, or incorrect torque demand responses.
7. Frequently Asked Questions (FAQ)
Q: Is this Bombardier unit refurbished or harvested from decommissioned stock? A: This product is a Brand New Surplus unit. It is not used, not pulled from a decommissioned fleet, and not refurbished. All cards undergo rigorous inspection and testing to verify OEM-level operational standards.
Q: Why invest in New Surplus over cheaper refurbished transit modules? A: Refurbished rail control boards often suffer from latent thermal stress on microprocessors, aged electrolytic capacitors, and worn backplane interface pins. Saving money on a used control board risks catastrophic traction failure, leading to stranded trains and secondary overhaul costs that vastly outweigh initial component savings.
Q: Does this module require parameter flashing upon installation? A: Yes. While the board hardware is ready to mount, you must verify or download vehicle-specific firmware parameter sets using the Bombardier/Alstom MITRAC diagnostic tool before putting the vehicle into revenue service.
Q: Can this drive control card be hot-swapped while the subrack is powered? A: No. You must fully isolate subrack logic power before removing or inserting the module. Hot-swapping causes high-voltage transients that destroy onboard processing circuits and corrupt backplane bus communications.
Q: What warranty coverage applies to this module? A: Every unit includes a comprehensive 1-year functional replacement warranty, ensuring verified performance and operational reliability.
