Serial Port Connectors - Boser HS-2605 Manual

3.11 Serial Port Connectors

The HS-2605 offers two NS16C550 compatible UARTs with
Read/Receive 16-byte FIFO serial ports and four internal 10-pin
headers and one RS-422/485 connector.
CN16: COM1 Connector (5x2 Header)
PIN Description PIN Description
1 DCD1
3 RXD1
5 TXD1
7 DTR1
9 GND
CN18: COM2 Connector (5x2 Header)
PIN Description PIN Description
1 DCD2
3 RXD2
5 TXD2
7 DTR2
9 GND
CN14: COM3 Connector (5x2 Header)
PIN Description PIN Description
1 DCD3
3 RXD3
5 TXD3
7 DTR3
9 GND
16
2 DSR1
DCD1
4 RTS1
RXD1
6 CTS1
8 RI1
TXD1
10 N/C
DTR1
GND
2 DSR2
DCD2
4 RTS2
RXD2
6 CTS2
8 RI2
TXD2
10 N/C
DTR2
GND
2 DSR3
DCD3
4 RTS3
RXD3
6 CTS3
8 RI3
TXD3
10 N/C
DTR3
GND
1 2 DSR1
3 4 RTS1
5 6 CTS1
7 8 RI1
9 10 N/C
1 2 DSR2
3 4 RTS2
5 6 CTS2
7 8 RI2
9 10 N/C
1 2 DSR3
3 4 RTS3
5 6 CTS3
7 8 RI3
9 10 N/C