Universial USB/RS-485 Converter

USB485B is a kind of USB to RS-485 industrial intelligent converter. It is the best
solution for the communication between USB and RS-485. Compared with RS-232 to
RS-485 converter, USB485 USB to RS-485 converter has many advantages 

Features 

1, Small volume, easy installation 
2, No power supply needed, plug and play 
3, Transmit distanc reach up to 1800M at the rate of 9.6kbps 
4, Automatic send data control, auto distinguish and sense direction adout data transfer
5, Auto sense serial signal rate, zero delay automatic transmit 

Communication 

Standard Accord USB1.1, EIA RS-485 standard 
USB signal VCC, DATA+, DATA-, GND, FG 
RS-485 signal D+, D-, GND 
Asynchronism,point to point or multi-point ,2 line half duplex 
Direction Automatic Send Data Control-no software drivers needs 
Band rate 300-115200bps,automatic test signal rate 
Loading Support 32 port loop enviroment(or handtailor 128 point) 
Transmission RS-485 side 1800M(115200bps), USB side 5M 
Protection 600W sugre protection, 15KV static electrity protection 
Interface type USB side type A interface female, RS-485 side DB-9male or 3 terminal
block 

Enviroment 

Working temperature -20 to 60 
Storage temperature -25 to 85 
Humidity Relatively humidity 5% to 95% 

Power 

Input powered No external power supply needed 
consumption Static consumption less than 80mA,dynamic average consumption less than
150mA 

Dimension 

L*W*H 70mm*35mm*18mm 
Shell Plastic 
Color Blue 
Weight 70g