16
3.11 Serial Port Connectors
The HS-6237/HS-6637 offers two NS16C550 compatible UARTs
with Read/Receive 16byte FIFO serial ports and two internal
10-pin headers.
CN23, CN24: COM1/COM2 Connector (DB9)
PIN
Description
1
DCD
2
SIN
3
SOUT
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI
1
6
5
9
DCD
SIN
SOUT
DTR
GND
DSR
RTS
CTS
RI
CN14, CN22: COM1/COM2 Connector (5x2 Header)
PIN
Description
PIN
Description
1
DCD
2
DSR
3
SIN
4
RTS
5
SOUT
6
CTS
7
DTR
8
RI
9
GND
10
N/C
2
4
6
8
10
1
3
5
7
9
DS
R
RT
S
CT
S
N/
C
RI
DC
D
SI
N
SO
UT
GND
DTR