Standards: USBV1.1, 1.0, 2.0, RS-485, RS-422 TIA/EIA

USB signal: VCC, DATA+, DATA-, GND, FG
● RS-485 signal: T/R+, T/R-, GND 
● RS-422 signal: T+, T-, R+, R-, GND 
● Working mode: Asynchronous, point to point or point to multi-point, 2 wires half-duplex or 4 wires full-duplex 
● Direction control: Adopts traffic direction auto control technology
● Baud rate: 300-921.6Kbps auto-detect serial signal 
● Loading capacity: Supports point to multi-point communication, allows to connect 32 sets RS-422 or RS-485 device  

Transmission distance: 1,200m(9,600bps) for RS-485/422, no more than 5m for USB
● Port protection: 600W lightning, surge, ±15KV ESD protection 
● Connector: USB-A male, RS-485/422 5-pin terminal block
● LEDs for indicating PWR TXD, and RXD activity
● Transmission media: Twisted-pair or shielded cable
● Dimension: 62×33×16mm
● Operating temperature: -40℃ to 85℃

Relative humidity: 5% to 95%
●Transmission distance: 0-1,200m（921,600bps-300bps）
●Supports Win2000/2003/2008/2012/XP/Vista/7/8/8.1/10/CE/Mac/Linux