1 、 Support RS-232 to RS-422/485 conversion, conversion modes
　　 canbe selected automatically
2 、 Automatic direction control of transmitting data (TXD),
　　 zero-latency time design
3 、 Photoelectric isolation enhance type (isolation voltage 3500V
　　 1S pulse/500V sequence), special DC/DC module,
　　 RS-422/485 lightning protection ， 1000W/line
4 、 Point to multi-point, allow to connect 128 RS-422 or
　　 RS-485 interface device
5 、 Data communication speed 0-115.2KBPS,
6 、 Electric interface: both ends of ATC-108 are DB9
　　 male and female.
7 、 Full metal housing, anti-static, powerful anti-jamming capacity