MiTAC Pluto E220 - Page 11

2.2 5V Powered COM setting
PIN
Default
User define by Jumper
1
DCD
DCD/+5V
2
RX
RX/TX/RX_TTL/TX_TTL
3
TX
TX/RX/TX_TTL/RX_TTL
4
DTR
DTR/+5V
5
GND
NA
6
DSR
NA
7
RTS
NA
8
CTS
RX_TTL/CTS/RX/TX/TX_TTL
9
RI
TX_TTL/RI/TX/RX/RX_TTL
PIN1 & PIN4 default
PIN1 & PIN4 support 5V