ALSTOM N897092520B / N897092057Y / N897092500E (TRENO) – Train TCMS I/O and Control Modules for Rolling Stock Maintenance

• Warranty: 365 days

• Delivery: 1 week if in stock; no more than one month at the latest

• Payment: 50% advance payment; full payment prior to delivery

• Express options: FedEx, UPS, DHL

• TCMS-ready integration: Designed for onboard control racks; commonly interfaces with vehicle buses used in ALSTOM fleets.

• Railway-grade power: 24 VDC nominal input with robust transient protection for rolling stock power environments.

• Ruggedized electronics: Shock/vibration tolerant construction suitable for underframe or saloon equipment cabinets.

• Isolated I/O: Discrete 24 VDC inputs/outputs and, in many cases, analog channels for auxiliary systems.

• Form-fit-function spares: A practical drop-in replacement to shorten downtime during corrective maintenance.

• Traceable part IDs: Clear part markings for configuration control; suffixes (B/Y/E) indicate revision or variant.

Specifications below reflect typical characteristics for this ALSTOM N8970-series of onboard I/O/control modules. Exact I/O maps and bus options can vary by vehicle program; we can verify against your train data sheet or a photo of the module label.

These modules are suited to onboard subsystems typically managed by the TCMS, including:

• Door control and interlock I/O

• HVAC command/feedback and fan group control

• Auxiliary converters and battery charger supervision

• Lighting, PIS/CCTV trigger lines, and cab signals interfacing

• Bogie/axlebox condition inputs and event/alarm aggregation

A rolling stock operator in Italy shared that the N8970-series card made a same-day recovery possible on a commuter set—swap the card, reload configuration, and the consist was cleared for service before the evening peak. That’s typically the kind of turnaround these parts are bought for.

• Reliability in service: Built for the electrical noise and vibration found on trains, with stable performance over long duty cycles.

• Compatibility: Form, fit, and function alignment with existing ALSTOM racks reduces commissioning risk.

• Cost savings: Shorter downtime and no redesign of wiring or software typically means lower total maintenance cost.

• Technical support: We can match module suffixes and firmware levels against your train’s BOM to avoid version conflicts.

• Cabinet standards: Mount in the designated onboard rack; keep 20–30 mm clearance for ventilation and cable bend radius.

• Power & grounding: Use a clean 24 VDC supply with proper earthing; verify polarity and chassis bonding to avoid ground loops.

• Wiring: Match I/O channel numbering to the original card; confirm discrete input thresholds and output load limits before energizing.

• Addressing/configuration: Set DIP/rotary addresses as per the original; reload configuration files if the fleet requires parameterization.

• Safety: De-energize circuits, observe ESD precautions, and document the card’s serial/revision during swap.

• Routine care: Quarterly dusting with dry air, connector inspection, and—where applicable—firmware/parameter verification after major overhauls.

• Designed for rail environments in line with EN 50155 and EN 50121 practices (model- and project-dependent)

• CE marking and RoHS conformity are commonly applied on this category of onboard electronics

• Manufactured under ISO 9001 quality systems (typical for ALSTOM supply chains)

• Warranty: 365 days from shipment

• 24 VDC isolated PSU (rail grade): To stabilize onboard supply during cranking and transient events.

• Backplane / rack slot hardware: Replacement card guides and ejector hardware for worn cabinets.

• MVB harness or serial service cable: For commissioning and diagnostics.

• Shielded I/O jumpers: Reduce induced noise on long runs to door or HVAC subsystems.