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1 Port Rs232 To Rs485 Converter , Industrial RS-485 Bus Split Hub

Minimum Order Quantity : 1 Price : Negotiable
Packaging Details : Carton Delivery Time : 7 Working Days
Payment Terms : L/C, D/A, D/P, T/T, Western Union, MoneyGram Supply Ability : 3000 sets per month
Place of Origin: Shenzhen, China Brand Name: 3onedata
Certification: CE, FCC, RoHS Model Number: SW4485I

Detail Information

Material: Metal Serial Ports: 5
Input Power: 12~48VDC Baud Rate: 300~115200bps
Operating Temperature: -40~75℃ Warranty: 3 Years
High Light:

interface converter rs232 rs485


rs232 to rs485 converter

Product Description

Industrial RS-485 bus split hub or 1-port RS-232 to 4-port RS-485 converter


SW4485I is a RS-485 bus split HUB designed for addressing RS-485 large scale system needs in complex electromagnetic field. It supports up to 115.2kbps transmission rate and adopts bidirectional transparent transmission that could split 1 RS-485 bus into 4 RS-485 buses or transparently transmit any RS-485 signal to the RS-485 bus or RS-232 of the upper computer. Each RS-485 port of this product’s lower computer is equipped with reverse connection fault alarm and protection function, which has improved the reliability of current RS-485 network remarkably and shortened the time of maintaining network effectively. In order to ensure the safety and reliability of data communication, RS-485 ports of this product are all provided with 2kVAC isolation voltage protection, level-4 electrostatic protection and level-2 radiated immunity protection which could prevent lightning strike, electrostatic and radiated interference. It’s safe and reliable, and appropriate for outdoor engineering application.


SW4485I also provides RS-485 bus star connection. User could easily improve RS-485 bus structure and split network segment. Reasonable utilization of SW485I enables you to design a unique and reliable RS-485 system. SW4485I adopts EMC protection and supports Din-Rail mounting and -40℃~75℃ wide operating temperature range, which can meet the requirement of different scenes.



Serial Port


Standard: EIA RS-232C, RS-485

Serial port quantity: upper computer port, 1 RS-232/485 serial port;

lower computer port, 4 RS-485 serial ports

RS-232 signal: TXD, RXD, GND

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

Baud rate: 300bps~115200bps

Data bit: 5bit, 6bit, 7bit, 8bit

Stop bit: 1bit, 1.5bit, 2bit

Check bit: None, Odd, Even, Mask, Space

Interface form:  upper computer port (RS-232/485), adopts 5-pin 5.08mm pitch terminal blocks; lower computer port(RS-485), adopts 10-pin 5.08mm pitch terminal blocks 

Transmission distance: RS-232 serial port, 15m;RS-485 serial port, 1200m

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

Load capacity: RS-485 supports 32-point polling environment

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


LED Indicator


Power Supply Indicator, serial port data sending/receiving indicator, lower computer serial port indicator



Power Requirement



12~48VDC, 3-pin 7.62mm pitch terminal blocks;

Power supply supports non-polarity


Power Consumption


No-load: 0.696W@24VDC

Full-load: 0.696W@24VDC


Environmental Limit


Operating temperature: -40~75℃

Storage temperature: -40~85℃

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





Housing: metal,  IP40 protection

Installation: DIN-Rail mounting

Dimension (W x H x D): 35mm×110mm×95mm

weight: 384.8g


Industrial Standard


IEC 61000-4-2 (ESD, electrostatic discharge), Level 4

Air discharge: ±15kV

Contact discharge: ±8kV


IEC 61000-4-3 (RS, radiofrequency electromagnetic radiated immunity), Level 2

Test level: 3V/m

Frequency range: 80MHz-1GHz


Shock: IEC 60068-2-27

Free fall: IEC 60068-2-32

Vibration: IEC 60068-2-6








3 years




1 Port Rs232 To Rs485 Converter , Industrial RS-485 Bus Split Hub 0


Ordering Information


Available Models RS-232/485  RS-485 Power Supply
SW4485I 1 4



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