USB-4604BM – 4-Port RS-232/422/485 to USB Converter by Advantech

The Advantech USB-4604BM is a versatile 4-port serial to USB converter that enables seamless connection of RS-232, RS-422, and RS-485 serial devices to systems equipped with USB interfaces. This industrial-grade device provides an efficient solution for extending serial communication capabilities without the complexity of traditional expansion cards. The USB-4604BM features software-selectable port types allowing users to configure each of the four DB9 male ports independently for RS-232, RS-422, or RS-485 communication standards. With transmission speeds reaching up to 921.6 kbps and support for various baud rate settings from 50 bps, the device handles demanding data transfer requirements with ease. The converter offers comprehensive serial signal support including TxD, RxD, CTS, RTS, DTR, DSR, DCD, RI, and GND for RS-232, differential signaling for RS-422, and half-duplex communication for RS-485 with automatic data flow control. Built-in 15 KV ESD protection safeguards all signals against electrostatic discharge damage in harsh industrial environments. The USB-4604BM is fully compliant with USB V1.1 and V2.0 specifications and operates via bus power, eliminating the need for external power adapters while also supporting 12 to 48 VDC external power input when required. The compact ABS plus PC enclosure measures 132 x 80 x 32 mm and supports both DIN-rail and panel mounting options. Operating across an extended temperature range of -40 to 75°C, this converter is ideal for industrial automation, POS systems, modems, printers, and control devices across manufacturing, critical infrastructure, and machine automation sectors. Available from Recab, your Nordic partner for Advantech serial communication solutions.