The UT-8890 is a versatile, high-performance universal converter designed to bridge the gap between modern USB ports and legacy industrial serial communication standards. As an essential tool for engineers, technicians, and industrial automation professionals, this device allows for seamless and reliable data transfer between PCs and a wide range of RS-232, RS-485, and RS-422 devices.

With its plug-and-play design, robust protection features, and automatic data control, the UT-8890 simplifies connectivity, enhances data integrity, and ensures stable operation in even the most demanding industrial environments.

Key Features:

• Universal Connectivity: Effortlessly converts signals from a USB-A port to RS-232, RS-485, and RS-422 standards, making it a true 3-in-1 solution.
• Zero-Latency Automatic Direction Control: The unique I/O circuitry automatically manages the direction of data flow, eliminating the need for manual setup or external flow control signals. This ensures a true plug-and-play experience.
• Wide Baud Rate Support: Supports a broad range of data communication rates from 300 to 921.6Kbps, automatically detecting the serial signal rate for compatibility with a wide array of devices.
• Extended Transmission Distance: Enables long-range communication with a transmission distance of up to 1,200 meters for RS-485/422 connections (at 9600bps).
• Robust Industrial Protection: Equipped with surge protection and ±15KV electrostatic protection to safeguard your devices and ensure reliable operation in harsh electrical environments.
• Multi-Point Networking: Supports point-to-multipoint communication, allowing a single converter to connect with up to 256 RS-422 or RS-485 interface devices.
• Driver & OS Compatibility: Compatible with all major operating systems, including Windows XP, 7, 8, 10, and 11, with easy-to-install drivers available.
• External Power-Free: The converter is port-powered, drawing all necessary power directly from the USB interface, eliminating the need for an external power supply.
• LED Indicators: Features built-in LED indicators for Power (PWR), Transmit (TXD), and Receive (RXD) to provide instant visual feedback on the device’s status and data flow.

Technical Specifications:

• Standard: USBV1.1, 1.0, 2.0; ELA RS-485, RS-422S
• Interfaces: USB-A Male to DB9 Male
• Working Mode: RS-232 Full Duplex, RS-485 Half Duplex, RS-422 Full Duplex
• Baud Rate: 300 – 921.6Kbps
• Load Capacity: Up to 256 nodes (RS-485/422)
• Cable Length: 1.5 meters (4.9 feet)
• Operating Temperature: -40°C to 85°C (-40°F to 185°F)
• Protection: Surge Protection, ±15KV ESD Protection
• Power Supply: USB Port-Powered

Ideal Applications:

• Industrial automation and control systems
• Building automation and security systems
• Point-of-Sale (POS) systems
• Data acquisition and monitoring
• Telecommunications and network management
• CNC machinery and factory equipment