The Ixxat Mobilizer Pro 820/EtherCAT is a powerful, standalone automotive gateway that integrates Automotive Ethernet, LIN, SENT, K‑Line, EtherCAT, and eight CAN/CAN FD interfaces in a single compact device. Built around an i.MX 8M Plus quad‑core Cortex‑A53 processor running Linux, all application logic runs directly on the device; a PC is only needed for configuration, simulation, or data visualization. This Mobilizer Pro 820 is ideal for data logging, protocol gateway tasks, and residual bus simulation in demanding automotive test environments, including end‑of‑line testing and test bench applications. Configuration is handled through the Ixxat Advanced Configuration Tool (ACT). This tool is an intuitive drag‑and‑drop software package that requires no programming knowledge to adapt the gateway for different DUTs (devices under test).