Interface:  Compatible with the RS - ETA/TIA 232C standards and RS - 485 standards .
Work model:  Asynchronous, half-duplex, differential transmission
Transmission medium: Twisted-pair cable or shielded twisted-pair cable
Communication rate:  300～115200bps
Size:  95mm×33mm×17mm
Work temperature:   0～70 ℃,-20℃～85 ℃
Work humidity : 5%-95%