Product name： UOTEK USB to RS-485/RS-422 Converter
Model： UT-8422
• Standard: Compliant with USBV1.1, 1.0, 2.0 standards, EIA RS-485, RS-422 standard.
• USB signal: VCC, DATA+, DATA-, GND, FG.
• RS-485 signal: T/R+, T/R-, GND.
• RS-422 signal: T/R+, T/R-, RXD+, RXD-, GND.
• Operation mode: Asynchronous operation, point-to-point or multipoint, 2-wire half-duplex, 4-wire full-duplex.
Overview
UT-8422 is a universal USB/RS-485/422 converter that does not require an external power supply, is compatible with USB, RS-485, RS-422 standards, and can convert single-ended USB signals into balanced differential RS-485 or RS-422 signals. It provides surge protection per line, and the extremely small inter-electrode capacitance ensures high-speed transmission of the RS-485/RS-422 interface. The RS-485/RS-422 end is connected through a DB9 male connector. The converter has zero-delay automatic send/receive conversion and unique I/O circuitry that automatically controls the direction of data flow without any handshake signals (such as RTS, DTR, etc.) or jumper settings to achieve half-duplex (RS-485) and full-duplex (RS-422) mode conversion, plug and play, ensuring compatibility with all existing communication software and interface hardware.
Parameter
1. Standards: Complies with USB V1.1, 1.0, 2.0 standards, EIA RS-485 and RS-422 standards.
2. USB signal: VCC, DATA+, DATA-, GND, FG.
3. RS-485 signal: T/R+, T/R-, GND.
4. RS-422 signal: T/R+, T/R-, RXD+, RXD-, GND.
5. Operation mode: Asynchronous operation, point-to-point or multipoint, 2-wire half-duplex, 4-wire full-duplex.
6. Direction control: Uses automatic data flow control technology to automatically detect and control the data transmission direction.
7. Baud rate: 300-921.6Kbps, automatically detects serial port signal rate.
8. Load capacity: Supports up to 32 RS-422 or RS-485 interface devices per converter for point-to-multipoint connections.
9. Transmission distance: Up to 1200m for RS-485/RS-422 (9600bps), less than 5m for USB.
10. Interface protection: Surge protection, ±15KV electrostatic protection.
11. Interface form: USB Type-A male connector on one end, DB9 male connector on the other end.
12. Transmission medium: Twisted pair or shielded wire.
13. Transmission rates: 128000bps over 300m, 38400bps over 600m, 9600bps over 1.2KM.
14. Dimensions: 1555mm x 36mm x 16mm (length x width x height).
15. Operating environment: -25°C to 70°C, relative humidity 5% to 95%.
16. Transmission distance: 0-1200m.
17. Compatible with Win/98/Win2000/WinXP/Vista/Win7/Win8/Win8.1/Win10/Win11/MAC/Linux and other systems.
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