IBASE Technology IB990 - COM3, COM4 Serial Port (J3)

Hardware Configuration
IB990 User’s Manual
21
2
2.5.2 COM3, COM4 Serial Port (J3)
1
2
19
20
Pin #
Assigment
Pin #
Assigment
1
DCD3
11
DCD4
2
DSR3
12
DSR4
3
RXD3
13
RXD4
4
RTS3
14
RTS4
5
TXD3
15
TXD4
6
CTS3
16
CTS4
7
DTR3
17
DTR4
8
RI3
18
RI4
9
Ground
19
Ground
10
NC
20
NC