
COM1 (CN3) & COM2 (CN4) Serial
Ports [Dual D-SUB-15P]
On board offer four set serial ports for serial devices connection.
Two of them are the D-Sub type, pin definition show as below, for
another two, please refer to page 4.
COM1 RS-232 (CN3) [Down]
Pin
Signal
Pin
Signal
1
SDCDB1X
6
SDSRB1X
2
SRXDB1
7
SRTSB1X
3
STXDB1
8
SCTSB1X
4
SDTRB1X
9
SRIB1X
5
GND
10
GND
COM2 RS-232 (CN4) [Up]
Pin
Signal
Pin
Signal
1
SDCDB2X
6
SDSRB2X
2
SRXDB2
7
SRTSB2X
3
STXDB2
8
SCTSB2X
4
SDTRB2X
9
SRIB2X
5
GND
10
GND