Features: USB power supply, no need for external power supply. Compatible with USB 1.0/1.1/2.0, RS-422, and RS-485 standards. Converts USB signals and protocol frames into balanced differential RS-422 or RS-485 signals and UART protocol. Enables bridging between a USB network and an RS-422/RS-485 network, functioning as a bridge device. Provides per-line surge protection and 600W lightning protection. Utilizes TVS and thermistor dual protection technology to effectively resist lightning strikes and surge voltages, while maintaining low interelectrode capacitance for high-speed data transmission. Features internal no-delay automatic transmit/receive switching. Unique I/O circuit automatically controls data flow direction without handshake signals (e.g., RTS, DTR) and requires no jumper settings for full-duplex (RS-422) or half-duplex (RS-485) mode. Plug-and-play design ensures compatibility with existing communication software and interface hardware. Supports point-to-point and point-to-multipoint communication. Point-to-multipoint configuration allows connection of up to 32 RS-422 or RS-485 devices. Data communication rate ranges from 300 to 128,000 bps. Equipped with power and data flow indicator lights for status monitoring. Supports USB to RS-422 and USB to RS-485 conversion. Lightweight and compact design for ease of use. Specifications: Material: ABS Color: Black, White (optional) Size: approx. 11 x 7 x 1 cm / 4.33 x 2.76 x 0.39 inches The RS-485/RS-422 terminals support the following networking modes: 1. Point-to-point four-wire full-duplex (RS-422) 2. Point-to-multipoint four-wire full-duplex (RS-422) 3. Point-to-point two-wire half-duplex (RS-485) 4. Point-to-multipoint two-wire half-duplex (RS-485) For both full-duplex and half-duplex configurations, a termination resistor (120 ohm, 1/4W) is recommended at the end of the line to prevent signal reflection and interference. Package List: 1 x Converter 1 x CD