Casio HS-3000/4M Manual De Usuario
17
3.8 Serial Port Connectors
The HS-3000/4M’s CN17, 14, 15 and 16 provide four high speeds
NS16C550 compatible USRT with Read/Receive 16 byte FIFO serial
ports.
NS16C550 compatible USRT with Read/Receive 16 byte FIFO serial
ports.
CN14, 15, 16: COM 2~COM 4 Connector (5x2 header)
PIN Description PIN Description
1
DCD
2
DSR
3
RXD
4
RTX
5
TXD
6
CTX
7
DTR
8
RI
9
GND
10
N/C
2
4
6
8
10
1
3
5
7
9
CN17: COM 1 Connector (DB9)
PIN Description PIN Description
1
DCD
6
DSR
2
RXD
7
RTS
3
TXD
8
CTS
4
DTR
9
RI
5
GND
1
6
5
9
JP1: COM 4 Use RS-232 or RS-422/485 Select
JP1
Description
Short
RS-232
Open (default)
RS-422/485
1
2
CN12: RS-422/485 Connector (5x2 header)
PIN Description PIN Description
1
TX-
2
TX+
3
RX+
4
RX-
5
GND
6
RTS-
7
RTS+
8
CTS+
9
CTS-
10
N/C
2
4
6
8
10
1
3
5
7
9