Bombardier 3EST27-99 Transmission Interface Module – Rail & Transit Series
Bombardier 3EST27-99 is listed for Rail & Transit Series RFQ review. Confirm quantity, condition and destination before quotation.
Technical Dossier
The following SKUs represent verified part numbers within the Bombardier 3EST series, classified by primary function. Each entry reflects the module's role within the vehicle control architecture:
3EST13-149: Traction control interface module; primary SKU for inverter gate drive signal conditioning.
3EST13-150: Traction control interface module, revision B; updated overcurrent protection threshold.
3EST13-151: Auxiliary power regulation board; 24 VDC bus monitoring and load switching.
3EST13-152: Auxiliary power regulation board, extended temperature variant (-40°C to +85°C).
3EST14-188: Door control logic module; handles open/close command sequencing and obstruction detection.
3EST14-189: Door control logic module with MVB interface; integrates door status into TCN.
3EST14-190: Door control module, high-current output variant for pneumatic actuator drive.
3EST10-030: Digital input module (DI); 32-channel, 24 VDC, optically isolated.
3EST10-031: Digital input module (DI); 16-channel, 110 VDC, rail-rated surge protection.
3EST10-032: Digital output module (DO); 16-channel, relay output, 5A per channel.
3EST10-033: Digital output module (DO); 32-channel, transistor output, 0.5A per channel.
3EST10-262: Analog input module (AI); 8-channel, ±10 V / 4–20 mA, 12-bit resolution.
3EST10-263: Analog input module (AI); 16-channel, differential input, 16-bit resolution.
3EST10-264: Analog output module (AO); 4-channel, 0–10 V / 4–20 mA, isolated.
3EST10-265: Analog output module (AO); 8-channel, high-precision, ±0.1% full-scale accuracy.
3EST10-266: Communication adapter; CAN bus / MVB dual-port gateway module.
3EST series modules present specific test challenges due to their multi-layer PCB construction, mixed-signal analog/digital circuits, and backplane-dependent initialization sequences. DriveKNMS applies the following test protocol to all 3EST units processed through its facility:
Visual and mechanical inspection: Component-level examination under 10× magnification; solder joint integrity assessment per IPC-A-610 Class 3 criteria; connector pin inspection for fretting corrosion and mechanical deformation. Powered functional test: Each board is energized using a dedicated 3EST backplane test fixture that replicates the original rack environment, including bus termination and power sequencing. Input/output channels are exercised across their full specified range. Communication bus verification: CAN and MVB interfaces are tested using protocol analyzers to confirm frame timing, error handling, and node addressing compliance per IEC 61375-3-3. Thermal cycling: Boards are subjected to a minimum of 10 thermal cycles between 0°C and 70°C to identify latent solder joint failures and component parameter drift. Final burn-in: 48-hour powered soak at 55°C ambient with continuous I/O cycling. Units that pass all stages are issued a DriveKNMS test certificate with individual serial number traceability.
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