rs-485 to usb serial converter

Specifications

rs-485 to usb serial converter
UK FTDI chip
USB2.0 version
Industrial grade
Electromagnetic Interference

rs-485 to usb serial converter details:

 

 

Performance parameters

1. Standards: conforming to USBV1.1 and 1.0, EIA RS-485 and RS-422, backwards compatible.

2. USB signals: VCC DATA+ DATA- GND FG

3. RS-485 signals: T+, T-, GND.

4. RS-422 signals: T+, T-, R+, R-, GND.

5. Industrial grade, master chipset UK FTDI FT232;

6. Working modes: asynchronous, point-to-point or point-to-multipoint, 2-line half duplex and 4-line full duplex.

7. Direction control: adoption of automatic data stream control for automatic recognition and control of data transmission direction.

8. Baud rate: 300-128,000bps, automatic detection of the transmission rate of the serial interface signal.

9. Workload ability: point-to-multipoint supported a maximum of 32 RS-422 or RS-485 interface equipment is supported.

10. Transmission distance: 1200 meters for RS-485/422 end (when 9,600bps) and a maximum of 5 meters for USB.

11. Interface protection: 600W lightning strike and surge protection and 5KV electrostatic protection.

12. Interface forms: A interface male connector, RJ-45 and DB9 male connectors for USB end.

13. Signal indication: 3 indicator lights for Power (PWR), Send (TXD) and Receive (RXD).

14. Transmission media: twisted-pair cable or shielded cable.

15. Transmission rate: 128,000bps to 300M.

                                          38,400bps to 600M.

                                          9,600bps to 1200M.

16. Dimensions: 1555mm 36mm 16mm.

17. Working environment: -40 to 85 degree C, relative humidity 5% to 95%.

18. Transmission distance: 0-1200meters (128,000bps-9,600bps)

19. Windows95/98/2000/XP/Vista/Win7/Win8/Linux and IMAG are supported.

 

Connector and signal

RS-485/RS-422 output signals and PIN assignment

DB9 Connector (PIN)	Output Signal	RS-422 Full Duplex Cabling	RS-485 Halfduplex cabling
1	T/R+	Sending(A+)	RS-485(A+)
2	T/R -	Sending(B-)	RS-485(B-)
3	RXD+	Receiving(A+)	Null
4	RXD -	Receiving(B-)	Null
5	GND	Grounding	Grounding
6	N/A
7	N/A
8	N/A
9	N/A

 

 

Communication Connection Chart

USB to RS-422 conversion

1. RS-422 point-to-point / 4-line full duplex

 

2.RS-422 point-to-point / 4-line full duplex

3. Full duplex connection between HU-04 interface converters

USB to RS-485 conversion

1. RS-485 point-to-point / 2-line half duplex

2. RS-485 point-to-multipoint / 2-line half duplex

3. Half duplex connection between HU-04 interface converters