16
1.4 Serial
Ports
WAFER-4821 offers four high speed NS16C550 compatible UARTs with
Read/Receive 16 byte FIFO serial ports. These ports enable you connect to serial
devices or a communication network. Two 9-pin DSUB connectors, one 10-pin
header and one 14-pin header are provided by WAFER-4821. The detailed pin
assignment of the connectors are specified as following tables:
•
CN17: Serial Port1 Connector (9-pin DSUB)
PIN Signal
Name PIN Signal
Name
1 DCD 6 DSR
2 RX 7 RTS
3 TX 8 CTS
4 DTR 9 RI
5 GND 10 GND
•
CN16: Serial Port2 Connector (14-pin Header/W Housing)
PIN Description PIN Description
1 DCD 2 DSR
3 RX 4 RTS
5 TX 6 CTS
7 DTR 8 RI
9 GND 10 NC
11 TX2+ 12 TX2-
13 RX2+ 14 RX2-
•
CN11: Serial Port3 Connector (9-pin DSUB)
PIN Signal
Name PIN Signal
Name
1 DCD 6 DSR
2 RX 7 RTS
3 TX 8 CTS
4 DTR 9 RI
5 GND 10 NC
