Serial port
The system motherboards have 9-pin serial interface connectors. These ports provide serial access to the
individual chassis and are capable of transferring data at rates as high as 230 kbps. Other features of the
ports include the following:
• Programmable data, parity, and stop bits
• Programmable baud rate and modem control
Figure 22: Serial port connector on page 63 shows a serial port.
Figure 22: Serial port connector
Serial port pinout shows pinout assignments for the 9-pin male DB-9 connector.
Table 11: Serial port pinout
Pin Assignment Description
1 DCD Data carrier detect
2 RXD Receive data
3 TXD Transmit data
4 DTR Data terminal ready
5 GND Signal ground
6 DSR Data set ready
7 RTS Request to send
8 CTS Clear to send
9 RI Ring indicator
USB port
The USB type A connector (Figure 23: USB type A port connector on page 64) shows provided on
the BaseI/O that supports general USB applications and optional keyboard and mouse configurations.
Pin assignments for USB type A connector lists the pin assignments for the USB type A connector.
Serial port 63
To Next Page
Loading...
