USB to RS485 / RS422 Converter

1) Small volume and easy installation
2) No power supply needed, plug-and-play
3) Adopts DIP switch setup, random switch RS-485/RS-422 interface
4) Transmit distance reach up to 1,800m at the rate of 115,200bps 
5) Automatic send data control, auto distinguish and sense direction adopt data transfer
6) Auto sense serial signal rate, zero delay automatic transmit

Specifications: 
1) Standard: USB1.1, EIA RS-485, RS-422 standard 
2) USB signal: VCC, DATA+, DATA-, GND, FG 
3) RS-485 signal: D+, D, GND
4) RS-422 signal: R+, R-, T+, T-, GND
5) Working format: asynchronism, point to point or multi-point, 2 lines half duplex
6) Direction: automatic send data control - no software drivers needs 
7) Band rate: 300 -115,200bps, automatic test signal rate
8) Loading: support 32 port loop environment (or handtailor 128 point)
9) Transmission: RS-485/422 side 1,800m (115,200bps), USB side 5m
10) Protection: 600W surge protection, 15KV static electricity protection
11) Interface type: USB side type A interface female, RS-485/422 side DB-9 male or 5 terminal blocks 
12) Working temperature: -20 to 60°C
13) Storage temperature: -25 to 85°C
14) Relative humidity: 5% to 95%
15) Input powered: no external power supply needed 
16) Consumption: static consumption less than 80mA, dynamic average consumption less
than 150mA
17) Dimensions (L x W x H): 70 x 35 x 18mm 
18) Shell: plastic 
19) Color: blue 
20) Weight: 70g