The 750-652/040-000 is a serial interface module designed to connect RS-485, RS-422, or RS-232 devices to the WAGO I/O System 750, also serving as a transparent gateway to supported fieldbus systems. It features a 2560-byte reception buffer and a 512-byte transmission buffer to handle data rates up to 115.2 kBd without data loss. The module is configurable via WAGO-I/O-CHECK or GSD files, allowing for flexible selection of baud rate, data width (7 or 8 bits), and stop bits (1 or 2). With an extended operating temperature range of -40 to +70°C and high resistance to shock and vibration, this 'Extreme' version is ideal for reliable operation in harsh industrial environments.