Serial ports

The SBC-455 offers two RS-232 serial ports. You can select or disable the address for each port with the BIOS Peripheral Setup program.

The card mounting bracket holds COM A, the DB-9 serial port connector for the first port. The parallel port and serial port adapter kit (supplied with the card) holds COM B, the DB-9 connector for the second port. This lets you connect and discon- nect the cables after you install the card. The following sections tell how to make RS-232 connections.

RS-232 connections (COM A, COM B)

The following table shows the pin assignments for the card's RS-

232 ports:

RS-232 connector pin assignment (COM A, COM B)

Pin Signal

1DCD

2RX

3TX

4DTR

5GND

6DSR

7RTS

8CTS

9RI

26SBC-455 User's Manual

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Image 34
Intel SBC-455 manual Serial ports, RS-232 connections COM A, COM B