USB485 is a kind of USB to RS-485/422 industrial intelligent converter. It is the best solution for the communication between USB and RS-485/422. Compared with RS-232 to RS-485/422 converter, USB to RS-485/422 converter has many advantages.
1. Small volume, easy installation
2. No power supply needed, plug and play
3. Single chip(ASIC) USB port to serial port communication
4. Transmit distance reach up to 1800M at the rate of 115200bps.
5. Automatic send data control, auto distinguish and sense direction adopt data transfer
6. Auto sense serial signal rate, zero delay automatic transmit


Compliance: USB1.1/2.0 compliant
Connector: USB type A
Speed: 12Mbps(Full-speed USB)
Serial interface
Numbers of ports: 1
Serial standards: RS485/422
Connector: DB9 male
Serial Line protection
ESD Protection: 15KV embedded
Baud rate: 300bps to 230400bps
Serial Communication Parameters
Data Bites: 5, 6, 7, 8
Stop Bits: 1, 1.5, 2
Parity: None, Even, Odd, Space, Mark
Flow Control: RTS/CTS, XON/XOFF
FIFO: 128bytes
Serial Signals
RS-485: D+,D-,GND
RS-422: T+, R+, T-, R-,GND
Loading: 32 nodes or custom 128 nodes
Transmission: RS-485 1800M(115200bps), USB 5M
Driver Support
Operating System: Support Windows98/ME and Windows2000/XP,Windows Server 2003/2008, Windows 7/Vista
Physical Characteristics
Weight: Products only: 70g
Packaged: 120g
Dimension: 70mm×35mm×18mm(wiring 1.5m)
Working temperature: -10 to 60℃
Storage temperature: -25 to 85℃
Humidity: Relative humidity 5% to 95%
Power requirements
No power supply needed, powered from USB
Consumption: Static consumption less than 80mA, dynamic average consumption less than 150mA
Warranty: 3 years
Approvals: FCC, CE, RoHS approvals