P127 CA0M111CA0 is EU EN certified railway-grade 3U plug-in isolated gateway board for Alstom metro and light rail traction converter racks. It serves as bidirectional data bridge between MVTP traction master CPU and vehicle TCMS (Train Control & Management System), integrates opto-isolated DC24V high-voltage safety interlock digital I/O, fault data storage and proprietary rack backplane communication

MCGG61N1CD0503F is EU EN certified railway-grade 3U plug-in signal conditioning board for Alstom metro & light rail traction converter racks. It integrates multi-channel galvanically isolated high-voltage/current sampling and 24VDC safety interlock digital input circuits, responsible for collecting DC-link voltage, inverter three-phase current, IGBT/motor temperature 4–20mA signals, and transmitting processed real-time data to MVTP master CPU via rack backplane bus.

MVTT14B1BA0773C is EU EN certified railway-grade 3U plug-in core master controller board for Alstom metro and light rail traction converter racks. It is the central digital processing unit of the whole traction system, responsible for high-speed vector closed-loop control of traction motors, real-time processing of analog sampling signals, hardware safety interlock logic judgment, internal rack bus data exchange and isolated TCMS vehicle train bus communication.

MVTU11K1CD0751G is EU EN certified railway-grade 3U plug-in core master controller board for Alstom metro and light rail traction converter racks. It serves as the central digital processing unit of the entire traction system, undertaking high-speed field-oriented vector triple closed-loop control for traction motors, real-time analysis of analog sampling data, hardware safety interlock logic judgment, internal rack backplane bus data exchange, and galvanically isolated TCMS vehicle train bus communication.

MVUA11B1BD0784B is EU EN certified railway-grade 3U plug-in isolated auxiliary power module for Alstom metro and light rail traction converter racks. It draws wide-range high-voltage DC power from vehicle traction DC-link bus and converts it into multiple groups of fully galvanically isolated low-voltage power rails, supplying stable power to MVTU/MVTT series traction master CPU, IGBT gate drive monitoring boards, analog signal sampling boards, TCMS vehicle communication gateway boards and MMLB/MMLG digital I/O expansion boards.

MCGV61P1ADC1001E is EU EN certified railway-grade 3U plug-in signal acquisition board for Alstom metro and light rail traction converter racks. It integrates fully isolated DC-link voltage, three-phase inverter current sampling, multi-channel 4–20mA temperature signal acquisition and DC24V hardware safety interlock input circuits.

MVAJ051RA1000A is EU EN certified railway-grade 3U plug-in high-power isolated auxiliary power module for Alstom metro and light rail traction converter racks. It obtains input energy from vehicle wide-range traction DC-link high voltage, then converts it into multiple fully galvanically isolated low-voltage power buses, supplying stable operating power to MVTU/MVTT series traction master CPU, IGBT gate drive monitoring boards, high-precision analog sampling boards, TCMS vehicle communication gateway boards and MMLB/MMLG digital I/O expansion boards.

MVAJ101RA1000A is EN railway certified 3U plug-in high-power isolated auxiliary power module for Alstom metro and light rail traction converter racks. It takes variable high DC voltage from vehicle traction DC-link bus and converts it into multiple fully galvanically isolated low-voltage power rails to supply MVTU/MVTT traction master CPU, IGBT gate drive boards, MCGV/MCGG analog sampling boards, TCMS communication gateway boards and MMLB/MMLG digital I/O expansion modules. The whole PCB adopts full acrylic conformal coating to satisfy strict EU rolling stock requirements of vibration resistance, damp resistance, EMC suppression and low-smoke low-toxicity fire safety.

MVAJ051JA1000A is EU EN certified railway-grade 3U plug-in isolated auxiliary power module for Alstom urban metro and light rail traction converter racks. It extracts wide-range high DC voltage from vehicle traction DC-link bus and converts it into multiple galvanically isolated low-voltage power rails to supply MVTU/MVTT traction master CPU, IGBT gate drive monitoring boards, MCGV/MCGG analog sampling boards, TCMS communication interface boards and MMLB/MMLG digital I/O expansion modules.

MCND04 is EU EN certified railway-grade 3U plug-in IGBT gate drive & fault monitoring board for Alstom metro and light rail traction converter racks. It receives PWM drive instructions from MVTU/MVTT master CPU via rack backplane bus, outputs isolated gate signals to control power IGBT modules, and real-time monitors IGBT overcurrent, desaturation, gate power loss and thermal faults, feeding all fault feedback back to the master control unit.