Serial Port Connectors - BOSER Technology HS-4703 Manual

3.11 Serial Port Connectors

The HS-4703 offers two NS16C550 compatible UARTs with
Read/Receive 16-byte FIFO serial ports and four internal 10-pin
headers.
CN2(1-9): COM1 Connector (DB9)
PIN Description
1 DCD1
2 RXD1
3 TXD1
4 DTR1
5 GND
CN2(10-18): COM1 Connector (DB9)
PIN Description
10 DCD2
11 RXD2
12 TXD2
13 DTR2
14 GND
CN11/CN10: COM3/COM4 Connector (5x2 header)
PIN Description
1 DCD
3 RXD
5 TXD
7 DTR
9 GND
CN6: RS-422/485 Connector (5x2 header)
PIN Description PIN Description
1 TX-
3 RX+
5 GND
RTS+
7
9 CTS-
14
PIN Description
6 DSR1
7 RTS1
8 CTS1
9 RI1
PIN Description
15 DSR2
16 RTS2
17 CTS2
18 RI2
PIN Description
2 DSR
4 RTS
6 CTS
8 RI
10 N/C
2 TX+
4 RX-
6 RTS-
CTS+
8
10 N/C
5 9
1 6
5 9
1 6
DCD 1 2 DSR
RXD 3 4 RTS
TXD 5 6 CTS
DTR 7 8 RI
GND 9 10 N/C
TX- 1 2 TX+
RX+ 3 4 RX-
GND 5 6 RTS-
RTS+ 7 8 CTS+
CTS- 9 10 N/C