Technical Parameters Basic Information Brand: Alstom Converteam Part Number: MCAA11J1BP9010C Form Factor: Standard 3U slide-in rack pluggable module Matching equipment: EP3-E-4-EN / EPIC-III traction master control board, RIOM T35 remote I/O, signal sampling boards, gate drive PCBs Application: European metro, light rail traction converter, TCMS vehicle control system data interaction, digital logic interlock Control Power Supply Rated operating voltage: DC 24V vehicle control power Operating range: 18 VDC ~ 30 VDC Max power consumption: 8.5 W Protection: Reverse polarity diode, TVS surge suppression, input overcurrent fuse Digital Isolated IO Channels Isolated DC24V Digital Inputs: Emergency stop, pantograph state, high-voltage earthing, cabinet safety door, cooling system running feedback Isolated DC24V Digital Outputs: Traction enable, braking command, fault alarm relay drive, cooling fan start signal All IO channels with optocoupler galvanic isolation, transient surge suppression filter to resist vehicle power interference Vehicle & Rack Dual Communication Internal rack backplane bus: Bidirectional real-time data exchange with EP3/EPIC main CPU (traction torque, temperature, fault codes) External vehicle TCMS train bus interface: Dedicated isolated communication channel for uploading traction running status, fault logs, receiving vehicle traction/braking torque commands from train control unit Mechanical Specifications Overall dimension: H130 mm × W98 mm × D220 mm PCB protection: Full acrylic conformal coating, anti-moisture, anti-corrosion, anti-dust, anti-mold Front panel LED indicators: Power OK, Rack Bus Communication, TCMS Bus Link, General Fault Alarm Fastening: Anti-looseness lock buckle, stable contact under long-term vehicle running vibration Railway Environmental & EU EN Compliance Operating ambient temperature: -25 ℃ ~ +70 ℃ Storage & transport temperature: -40 ℃ ~ +85 ℃ Relative humidity: 5% ~ 95% non-condensing Vibration standard: IEC 61373 railway rolling stock Shock resistance: 12g half-sine wave impact test EMC standard: EN 50121-3-2 railway vehicle electromagnetic compatibility Fire safety grade: EN 45545-2 HL2 low smoke, low toxicity flame retardant