Quatech USB to RS-232/422/485 Isolated Converter SSU2-400I - Manual (Page 10)

9
This converter’s USB port is a USB type B connector and it is f
ully compatible
with the USB V1.1 ~ 2.0.
Serial I/O Port
Serial I/O Port of RS-232/422/485
To connected the serial data cable between the converter and the serial
device. Follow the parameter setup procedures to configure the converter
(see the following chapters).
Terminator (DIP Switches)
The purpose of the Terminator (DIP Switches) is for compensating signal
attenuation in a long distance connection at RS-485/422. To activate signal
compensation function, please set the dip switch 1 & 2 to “ON” position. To
disable signal compensation function, please set the dip switch to “OFF”
position.
Serial I/O Port
RS-485/RS-422
Terminator
Serial I/O Port
RS232
USB Type B Port