8 port usb rs422/485 db9 serial converter details:

Performance parameters

1) Standards: Conforming to USB1.1, 1.0 and 2.0 standards and EIA RS-485 and RS-422 standard

2) USB signals: VCC,DATA+,DATA-,GND,FG

3) RS-485 signals:T/R+,T/R-,GND

4) RS-422 signals: T/R+,T/R-,RXD+,RXD-,GND

5) Operating mode: Asynchronous mode, point-to-point or point-to-multipoint mode, 2-wire half-duplex, 4-wire full-duplex

6) Data flow control: Automatic data flow control technique is adopted to automatically determine and control the data flow

7) Baud rate: 300-128000bps, automatically detecting the data rate

8) Load capacity: point-to-multipoint communication mode is supported, maximum 128 RS-422 or RS-485 devices are supported

9) Communication distance: 5000 meters for RS-485/422 interface (128000bps-9600bps) and no more than 5 meters for the USB port

10) Interface protection: 600W lightning and surge protection for each port, ±15KV ESD protection

11) Isolation degree: 2500Vrms isolation voltage for each port, 500DC continuous specialized DC/DC module

12) Isolation type: master/slave isolation, slave/slave isolation

13) Interface connection: B type female connector at USB side and DB9 male connector at RS-485/422 side

14) Signal indication: 9 signal indicator lights Power(PWR) transmit (TXD) receive (RXD)

15) Transmission media: twisted-pair or shielded cable

16) Baud rate: 921600bps to 300M

                          115200bps to 2.4KM

                           9600bps to 5KM

17) Dimension: 210mmX130mmX32mm

18) Environmental parameters: temperature of -25°C to 70°C, relative humidity of 5% to 95%

19) Supported OS: Win98/Win2000/WinXP/Win7/8/Linux

 Connector and signal

1)DB9 PIN type: signal output and pin assignment of RS-485/RS-422

2)USB-B female: USB output signals and PIN assignment

Communication Connection Chart

USB to RS-422 conversion

1.RS-422 point-to-point 4 wires communication

2.RS-422 point-to-multipoint 4 wires full-duplex communication

3.Full-duplex communication connection between HK-5208B interface converters

USB to RS-485 conversion

1. RS-485 point-to-point 2 wires half-duplex

2.RS-485 point-to-point 2 wires half-duplex

3. Half-duplex communication connection between HK-5208B interface converters