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Performance Parameters 

 
USB Version 

1.0, 1.1, and 2.0 Standards compliant 

Serial Signal Supported 

RS-485, RS-422 TIA/EIA Standard 

USB Signal 

VCC DATA+, DATA-, GND, FG 

RS-485 Signal 

T/R+, T/R-, GND 

RS-422 Signal 

TXD+, TXD-, RXD+, RXD-, GND 

Working Mode: 

Asynchronous working, point-to-point or point-to-multipoint 2 wires (half duplex) 

4 wires (full duplex) 

Direction  Control 

Adopt the technology which automatically controls the data-flow ddirection, 

automatically distinguish and control the data-transmission direction. 

Transmission Rate   

300-921600bps, Automatically detect the serial port signal rate 

Load Capability 

Support  point-to-multipoint  transmission.  Each  converter  can  connect 32 RS-422 

or RS-485 interface equipment 

Transmission Distance 

RS-485/422 port: 1.2km (921600bps-300bps).USB port: No more than 5 meters. 

Interface Protection   

600W  lightning  strike  and  surge  protection  and ±15KV  ESD protection. 

Interface form   

USB port: A type male interface. RS-485/422 port: 5-pin connection pole. 

Signal Indication 

3 LED’s for Power(PWR), Send(TXD), and Receive (RXD) 

Transmission media 

Twisted-pair cable or shielded cable. 

Dimensions 

62mm x 33mm x 19mm  

Working environment 

 -40°  to 85

, relative humidity 5% to 95%. 

Operating System 

Windows95/98/2000/XP/Vista, IMAG supported. 

 

Connector and Signal 

 

RS-485, RS-422 data output, connector, and bay-line distribution. 

Connection pole 

Data Output 

RS-422 Full-Duplex 

RS-485 Half-Duplex 

T/R+ 

Send (A+) 

RS-485 (A+) 

T/R- 

Send (B-) 

RS-485 (B-) 

RXD+ 

Receive(A+) 

                    N/C 

RXD- 

Receive(B-) 

                    N/C 

GND 

Ground Wire 

Ground Wire 

 

 

 

 

 

 

 

Содержание GM-482422

Страница 1: ...charge with a protection voltage of 600W on each line for lightning surge surge voltage or transient over voltage possibly caused by other electrical sources In this case the USB to serial converter will maintain the high speed transmission of RS 422 or RS 485 interface ensured by the tiny capacitance between the poles RS 422 and RS 485 Interfaces RS 422 and RS 485 interfaces with a DB9 male conne...

Страница 2: ...r can connect 32 RS 422 or RS 485 interface equipment Transmission Distance RS 485 422 port 1 2km 921600bps 300bps USB port No more than 5 meters Interface Protection 600W lightning strike and surge protection and 15KV ESD protection Interface form USB port A type male interface RS 485 422 port 5 pin connection pole Signal Indication 3 LED s for Power PWR Send TXD and Receive RXD Transmission medi...

Страница 3: ...Diagrams USB to RS 422 Conversion RS 422 point to point 4 wires full duplex RS 422 point to multipoint 4 wires full duplex USB to RS 485 Conversion RS 485 point to point 2 wires half duplex RS 485 point to multipoint 2 wires half duplex ...

Страница 4: ...rface connection is correct 3 Make sure power supply is OK 4 Make sure the wire terminal connection is OK 5 Make sure the pilot lamp flashes when receiving 6 Make sure the pilot lamp flashes when sending Data missing or incorrect Check to see whether if the data rate and format at both ends of the communication equipment are consistent ...

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