4 Port RS-485 HUB with Isolation
Support 1 RS-232/485 upper computer port, and 4 RS-485 lower computer port
Each lower computer port can connect to 32 standard RS-485 devices(nodes)
Support cascading of multiple SW4485I, up to 256 RS-485 buses
Automatic serial port signal rate detection, support 300bps~115200bps serial port baud rate, zero-delay conversion
Serial port provides 15kV electrostatic protection and 2kVAC isolation protection
Unique automatic detection and alarm of RS-485 signal reverse connection
Overview of 3onedata’s 4 Port RS-485 HUB with Isolation SW4485I
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； 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) |
| Physical Characteristic | 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 |
| Certification | CE, FCC, RoHS |
| Warranty | 3 years |
| Available Models | RS-232/485 (upper computer) | RS-485 (lower computer) | Power Supply |
| SW4485I | 1 | 4 | 12~48VDC |