... Point to point, point to multi-point communication4) Supports RS-232 to RS-422/485 conversion, conversion modes can be selected automatically5) Automatic ... 3,500V impulse / 500V sequence), special DC/DC module, RS-422/485 lightning protection,1,000W each line7) Point to multi ... -point, allow to connect 128 RS-422 or RS-485 interface device8) Data communication speed 0-115.2Kbps9) ...