Bộ chuyển đổi USB sang 8 cổng RS-485/422 3Onedata USB8485I

Thương hiệu: 3Onedata | Tình trạng: Còn hàng
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USB to 8-port RS-485/422 Converter

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Bộ chuyển đổi USB sang 8 cổng RS-485/422 3Onedata USB8485I


Supports bilateral switching of data between 1 USB interface and 8 RS-485/422 serial ports

Low CPU utilization during usage, stable performance

Autotunning of serial port signal rate, baud rate of serial port 300bps~115200bps

Serial port supports 15kV electrostatic protection, 2kVAC isolation protection

Supports 9VDC power supply input

Supports -40~75℃ wide temperature operation


USB8485I is a USB to RS-485/422 isolated interface converter, which can achieve bilateral switching of data between USB interface and 8 RS-485/422 serial ports. The product supports 1 USB interface and 8 RS-485/422 serial ports. Serial port is equipped with 15kV electrostatic protection and 2kVAC isolation protection, which can effectively protect the device from damage. It adopts desktop mounting to meet the requirements of different application fields.

The product provides matched driver program software; USB interface connected to PC will make up a serial COM port in the computer system. PC host can simultaneously communicate with RS-485/422 serial devices via virtual COM port.

Hardware adopts fanless, low power consumption, wide temperature design and has passed rigorous industrial standard tests, which can suit for the industrial scene environment with harsh requirements for EMC. It can be widely used in PLC, Industrial Automatic Control, IC Card Toll Collection System, and Data Acquisition Control System, etc.


Serial Port  


Standard: EIA RS-485, RS-422

Quantity of serial port: 8 RS-485/422 serial ports

RS-485 signal: D+, D-, GND

RS-422 signal: T+, T-, GND, R+, R-

Baud rate: 300bps~115200bps

Data bit: 7bit, 8bit

Stop bit: 1bit, 2bit

Parity bit: None, Even, Odd, Space, Mark

Interface form: DB9, Male (DB9M to 5-pin terminal blocks with additional purchase)

Transmission distance: 1200m

Directional control: RS-485 direction adopts ADDC (Automatic Data Direction Control) technology

Load capacity: RS-485/422 end supports 32-point polling environment

Interface protection: 15kV electrostatic protection, 2kVAC isolation protection


USB Port Standard: USB 1.1, USB 2.0


Quantity of interfaces: 1 USB interface

USB signal: VCC, DATA+, DATA-, GND

Transmission rate: high speed 480Mbps, full speed 12Mbps

Interface form: USB B-type socket, Female

Transmission distance: 5m

Operating System Windows 2000/XP/Server 2003/Server 2008/Vista, Windows XP embedded, Windows CE 4.2/5.0/5.2/6.0, Linux (above version 2.4), MAC OS-X
LED Indicator Power supply indicator, serial port data sending/receiving indicator







9VDC, adopts DC round head







No-load: 1.64W@9VDC

Full-load: 2.13W@9VDC







Operating temperature: -40~75℃

Storage temperature: -40~85℃

Relative humidity: 5%~95% (no condensation)







Housing: metal, IP30 protection grade

Installation: desktop mounting

Dimension (W x H x D): 230mm×40mm×148mm

Weight: 1.01kg






Industrial Standards IEC 61000-4-2 (ESD, Electrostatic discharge), Level 4


Air discharge: ±15kV

Contact discharge: ±8kV

Shock: IEC 60068-2-27

Free fall: IEC 60068-2-32

Vibration: IEC 60068-2-6


3 years



USB8485I Datasheet 

Ordering Information

Available Models USB RS-485/422 Power Supply
USB8485I 1 8 9VDC

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