The Weidmüller 2566380000, type UR20-FBC-PN-IRT-V2, is a PROFINET fieldbus coupler from the u-remote IP20 I/O system . It serves as the interface between the higher-level fieldbus network and the u-remote system bus, connecting up to 64 I/O modules .

The Weidmüller UR20-8DI-P-2W, is a digital input module from the u-remote IP20 I/O system. It is designed to receive binary control signals from sensors, transmitters, and switches.

The Weidmüller RRDIO15 is a high-reliability I/O Alarm Module, co-developed with Rolls-Royce for critical industrial and marine applications .

The Weidmüller PRO-M is a series of single-phase and three-phase switch-mode power supplies designed for general-purpose industrial applications .

AP5427A is railway certified standard 3U plug-in multi-channel IGBT gate drive and real-time power module monitoring board for Alstom metro and light rail traction converter racks. It receives synchronized PWM modulation commands from MVTU/MVTT master traction CPU via rack internal backplane bus, outputs isolated high-current gate drive signals to control high-power traction IGBT modules, while continuously detecting critical fault states including IGBT desaturation, DC-link overcurrent, gate power supply failure and power device overtemperature.

MPA157 is EN 50155 railway certified 3U plug-in digital input/output and safety chain signal processing board for Alstom metro and light rail traction converter racks, belonging to the standard MV traction control platform.

TTM211/IP166 is EN50155 railway certified 3U plug-in traction-TCMS gateway communication board for Alstom metro & light rail traction converter racks under MV control platform. It acts as bidirectional isolated data bridge between MVTU/MVTT traction master CPU internal rack backplane and vehicle train communication bus (MVB/RS485/IP interface marked IP166).

SIR4-S3-4-1-2 is EN 50155 railway certified 3U plug-in safety relay isolation board for Alstom metro and light rail traction converter MV control platform. It adopts redundant safety relay architecture to process vehicle high-voltage safety chain, emergency stop and interlock feedback signals, realizing electrical isolation between field safety circuits and internal traction control logic.

8239-4018 is EN 50155 certified railway standard 3U slide-in plug-in signal acquisition and safety interlock expansion board for Alstom MV metro/light rail traction converter racks, factory part number corresponding to standardized digital I/O hardware matched with MPA157 series platform.

8197-4002 is EN 50155 railway certified 3U plug-in signal conditioning board, the factory spare part code corresponding to CDG11AF series analog acquisition board for Alstom MV metro and light rail traction converter racks. It integrates galvanically isolated DC-link voltage, three-phase inverter current detection, multi-channel 4–20mA temperature signal collection and DC24V opto-isolated safety chain input circuits.