Standard: Accord EIA RS-232, RS-485 standard.
Connector: DB9 female on RS-232 side, DB9 male with 4 or 6 terminal block on RS-485 side.
Work methods: asynchronous, point to point or multi-point, 2 wire half-duplex.
Transmission medium: Ordinary Line , twisted pair cable or Shielded Wire
Baud rate: 300~115000bps.
Transmission distance: 5 meters (RS-232 side) and 1200 meters (RS-485 side).
Communication protocol: Transparent.
Environment: -10 to 85 centigrade working temperature, 5% to 95% relative humidity.
Signals: RS-232 TXD, RXD,GND ; RS-485 Date+, Date-,GND .