Bộ chuyển đổi USB sang cách ly RS-232/485/422 3Onedata USB485I

Thương hiệu: 3Onedata | Tình trạng: Còn hàng
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USB to RS-232/485/422 Converter

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Bộ chuyển đổi USB sang cách ly RS-232/485/422 3Onedata USB485I


Supports bidirectional data conversion between 1 USB interface and 1 RS-232/485/422 serial ports

Plug and play, low CPU utilization during usage, stable performance

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

Serial port supports 8kV electrostatic protection, 2kVAC isolation protection

Supports optional 9~48VDC wide voltage input and USB power supply (they could power device simultaneously)

Supports -40~85℃ wide temperature operation


USB485I is a USB to RS-232/485/422 interface converter, which can achieve bidirectional data conversion between USB interface and RS-232/485/422 serial ports. The product supports 1 USB interface and 1 RS-232/485/422 serial port. RS-485/422 supports serial port self-adaption technology, which can identify RS-485/RS-422 serial port with no need of switch setting. Serial port is equipped with 8kV electrostatic protection and 2kV isolation protection, which can effectively protect the device from damage. It adopts wall 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 automatically. PC host can communicate with RS-232/485/422 serial devices via virtual COM port.

Hardware adopts fanless, low power consumption, wide temperature and voltage 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-232C, RS-485, RS-422

Quantity of serial port: 1 RS-232/485/422 serial port

RS-232 signal: TXD, RXD, GND

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

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

Baud rate: 300bps~115200bps

Data bit: 7bit, 8bit

Stop bit: 1bit, 2bit

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

Interface form: RS-232 serial port, adopts DB9,Female;

RS-485/422 serial port, adopts 5-pin 5.08mm pitch terminal block

Transmission distance: RS-232 serial port, 15m;

RS-485/422 serial port, 1200m

Direction control: RS-485 adopts automatic data flow control technology which can detect and control the direction of data transmission

Load capacity: RS-485 supports 32-point polling environment (128-point is customizable)

Interface protection: 8kV 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 A-type socket, Male

Transmission distance: 5m

Operating System Windows 2000/Server 2003/XP/Vista/Server 2008/7, 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







Support optional USB interface power supply or 9~48VDC power supply, they could power the device simultaneously







No-load: 0.38W@24VDC

Full-load: 0.41W@24VDC







Operating temperature: -40~85℃

Storage temperature: -40~85℃

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







Housing: metal, IP30 protection grade

Installation: wall mounting

Dimension (W x H x D): 69mm×22mm×100mm

Weight: 226g






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


Air discharge: ±8kV

Contact discharge: ±4kV

Shock: IEC 60068-2-27

Free fall: IEC 60068-2-32

Vibration: IEC 60068-2-6


3 years



USB232/485/422 Datasheet

Ordering Information

Available Models USB RS-232/485/422 Power Supply
USB485I 1 1 9~48VDC or USB power supply

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