Technical Parameters Basic Information Brand: ALSTOM Part Number: TM7105-001 Form Factor: Standard 3U slide-in rack pluggable module Matching Equipment: EP3-E-4-EN / EPIC-III traction CPU, analog signal sampling boards, IGBT gate drive PCBs, high voltage auxiliary power supply Application: European urban metro, light rail traction converter vehicle communication interaction and safety interlock logic processing Control Power Supply Rated operating voltage: DC 24V vehicle control power Operating voltage range: 18 VDC ~ 30 VDC Maximum power consumption: 8.6 W Protection circuit: Reverse polarity protection diode, TVS surge absorption filter, input overcurrent fuse Opto-Isolated Digital IO Channels DC24V Digital Inputs Pantograph lifting/lowering feedback, high voltage earthing switch state, cabinet safety door interlock, emergency stop safety chain, cooling fan running status, inverter ready signal feedback DC24V Digital Outputs Traction enable signal output, electric brake activation control, general system fault alarm relay drive, cooling fan startup control, high voltage permission contact drive All IO channels built-in EMI filter to restrain transient power grid interference generated by vehicle traction inverters Dual Independent Communication Interfaces Internal rack proprietary high-speed backplane bus Bidirectional real-time data exchange with traction master CPU, including traction torque command, DC-link bus voltage, power module temperature, historical fault codes and equipment operating status Galvanically isolated external TCMS vehicle train bus Upload traction system real-time operating data and complete fault logs to vehicle central diagnostic unit; receive whole-vehicle traction/braking commands, speed limit instructions and fault reset signals from TCMS master controller 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 status indicators: Power OK, Rack Bus Communication Normal, TCMS Bus Link Established, General System Fault Alarm Fastening structure: Anti-looseness lock buckle, maintains stable electrical 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 test 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 material