USB to RS-485/422 industrial intelligent converter; no power supply needed, plug-and-playUSB485 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.
Features of USB to RS-485/422 converter:
Small volume, easy installation
No power supply needed, plug and play
Single-chip(ASIC) USB port to serial port communication
Transmit distance reaches up to 1800M at the rate of 115200bps.
Automatic send data control, auto distinguish and sense direction adopt data transfer
Auto sense serial signal rate, zero delays automatic transmit
Specifications of USB to RS-485/422 converter:
USB 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
Standard: USB1.1, EIA RS-485, RS-422 standard
USB signal: VCC, DATA+, DATA-, GND, FG
RS-485 signal: D+, D, GND
RS-422 signal: R+, R-, T+, T-, GND
Working format: asynchronism, point to point or multi-point, 2 lines half-duplex
Direction: automatic send data control – no software drivers needs
Band rate: 300 -115,200bps, automatic test signal rate
Loading: support 32 port loop environment (or and tailor 128 points)
Transmission: RS-485/422 side 1,200m (9,600bps), USB side 5m
Protection: 600W surge protection, ±15KV static electricity protection
Interface type: USB side type A interface female, RS-485/422 side DB-9 male or 5 terminal blocks
Working temperature: -20 to 60°C
Storage temperature: -25 to 85°C
Relative humidity: 5% to 95%
Input powered: no external power supply needed
Consumption: static consumption less than 80mA, dynamic average consumption less than 150mA
Performance of USB to RS-485/422 converter:
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-485/422 1200M(96000bps), USB 5M
Driver Support:
Operating System: Support Windows98/ME/2000/XP/Vista/7, Linux, MAC, Wince