IOGear GBS301 Quick Start - Manual (Page 4)

DIP Switches
Switches 1-3
DIP Switches 1, 2, and 3 are used to configure the baud rate.
NOTE: Most computer serial ports only support baud rate up to
115200. For higher baud rates, you may need to install a
high-speed serial card in your computer. In addition, if you need
to set a lower baud rate for your application, see the Advanced
Configuration section in the User manual.
Switch 4
DIP Switch 4 is used to set the serial adapter as master or slave:
0DVWHUPRGH6ZLWFK
Switch 2 Switch 3 Baud Rate
Table 1
Switch 1
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
9600
19200
38400
57600
115200
230400
460800
921600
2