ALSTOM BGTR8HE (P/N 24491276A1004) – Railway control module for dependable I/O and system interfacing

The ALSTOM BGTR8HE, identified by build code 24491276A1004, is an OEM module typically used in rolling stock and signaling cabinets where robust, isolated I/O and reliable backplane interfacing matter. From my experience, this type of board sits in a 19-inch subrack and bridges field signals to the train or interlocking control system, helping maintenance teams cut downtime by keeping the original architecture intact. You might notice that Alstom’s spare parts strategy aims for long lifecycle compatibility—this unit seems to follow that pattern.

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• Warranty: 365 days
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Key Features

• Original ALSTOM spare (24491276A1004) – Ensures form, fit, and function in existing ALSTOM control racks.
• Rack-mounted board format – Typically slides into a 19-inch subrack for quick swap and minimal wiring disruption.
• Isolated I/O channels – Designed to interface reliably with field signals and reduce noise issues common in traction environments.
• Backplane interfacing – Communicates via subrack connectors, which simplifies cabling and keeps diagnostics tidy.
• Service-friendly design – Front-panel access (in most cases) makes replacement fast during scheduled maintenance windows.
• Proven railway pedigree – Typically built to railway electronics practices for vibration, EMC, and temperature resilience.

Technical Specifications

The details below reflect common parameters for the BGTR-series in ALSTOM subrack applications. Build code A1004 may have variants—please verify against your unit label or send a photo for confirmation.

Brand / Model	ALSTOM BGTR8HE – P/N 24491276A1004
HS Code	853890 (Parts suitable for switching/control apparatus)
Power Requirements	24 VDC nominal (18–32 VDC typical for this family). Some fleets use 110 VDC variants—confirm on the nameplate.
Form Factor / Installation	Rack-mounted module for ALSTOM 19-inch subrack; inserted via guide rails and secured at the front panel.
Signal I/O Types	Typically isolated digital inputs and switched outputs (relay or transistor). Exact channel count depends on build.
Communication Interface	Backplane/subrack connector (DIN-style) for system bus and power; some versions include front test points.
Operating Temperature	Typically -25°C to +70°C for railway cabinet use; verify per build documentation.

Application Fields

• Rolling stock control racks (propulsion/traction interface, auxiliary control, HVAC control)
• Onboard I/O aggregation for door systems, brake control feedback, and safety interlocks
• Wayside and signaling cabinets where ALSTOM subrack modules are standard
• Lifecycle maintenance projects requiring like-for-like replacement of OEM ALSTOM boards

Advantages & Value

• Reliability you can slot in – Original architecture retained, no requalification of wiring or software in most cases.
• Compatibility – Matches existing backplane connectors and signal maps for faster turnaround.
• Cost control – Reduces engineering time and avoids full system redesigns when a single card fails.
• Traceability – Part number 24491276A1004 supports clean maintenance records and configuration control.
• Support – We can help check build codes and firmware markings so you receive the right variant the first time.

Installation & Maintenance

One thing I appreciate is how straightforward these boards are to swap when the cabinet is prepared correctly. A few practical notes we typically share with operators:

• Cabinet environment: Keep within cabinet specs; ensure ventilation and avoid moisture ingress. EMI grounding should be intact.
• Power & wiring: Verify supply voltage (24 VDC or other as labeled). Observe polarity, ESD protection, and lockout/tagout procedures.
• Insertion: Align with subrack guides; seat firmly into the backplane; secure front panel screws to avoid vibration loosening.
• Functional check: Run system self-tests where available; validate I/O points through the train diagnostic tool or cabinet tester.
• Routine maintenance: Visual inspection of connectors every service interval; clean dust with non-static methods; firmware/config checks if applicable.

Quality & Certifications

• Manufactured to ALSTOM quality systems (ISO 9001-based production controls).
• Compliance typically includes CE and RoHS for electronics; many railway builds align with EN 50155/IEC 60571 practices.
• Certificate of Conformance (CoC) and test reports available on request for traceable batches.
• Warranty: 12 months from delivery.

Supporting Components (commonly paired)

To speed up commissioning, we can also supply compatible accessories and spares that usually sit around the BGTR8HE in the rack:

• 19-inch subrack/backplane assemblies (DIN 41612 style connectors)
• Mating connector kits and coded keying elements
• 24 VDC railway-grade power supplies and line filters
• Pre-terminated signal harnesses for quick I/O replacement
• Front-panel hardware and guide rails for the proper slot