Input Serial Port: RS-232
Output Serial Port: RS-485
Inner Self-adaption circuit
Isolation voltage: 3000V
Transmission speed: 300~115.2k BPS
Support kinds of Multiple data format
Communication distance: 2.1Km/9600BPS 3.6Km/2400BPS
Isolated terminal is optional: Either for RS-232 or for RS-485
R-8520 is the best choice for PLC user