2.1.3. Jumper Settings
SW2
Part number
Description
Setting
1 ON 2 OFF
1 OFF 2 ON
SW3
Part number
Description
Setting
1 OFF 2 OFF
1 OFF 2 ON
1 ON 2 OFF
1 ON 2 ON
Boot device
1600000202
DIP SW CHS‐02TB(29) SMD 4P SPST P=1.27mm W=5.4mm
Function
Boot from SD
Boot from SPI
RS‐232/422/485 selection
1600000084
DIP SW CHS‐02TB(29) SMD 4P SPST P=1.27mm W=5.4mm
Function
Loopback mode
RS‐232
RS‐485 Half Duplex
RS‐422 Full Duplex
8