Creative PCA-6780 user manual COM port Connector CN14,CN15, Mini Keyboard Connector CN17

2.19 COM port Connector (CN14,CN15)

The PCA-6780 provides two COM ports (COM1: RS-232 and COM2: RS-232/422/485). CN14 supports COM1, CN15 supports COM2. And J2 is for COM2 RS-232/422/485 selection. It provides connections for serial devices (a mouse, etc.) or a communication network. You can find the pin assignments for the COM port connector in Appendix B.

2.20 MINI Keyboard Connector (CN17)

The PCA-6780 board provides a keyboard connector that supports both a keyboard and a PS/2 style mouse. In most cases, especially in embedded applications, a keyboard is not used. If the keyboard is not present, the standard PC/AT BIOS will report an error or fail during power-on self- test (POST) after a reset. The PCA-6780’s BIOS standard setup menu allows you to select "All, But Keyboard"under the "Halt On"selection. This allows no-keyboard operation in embedded system applications, without the system halting under POST.

2.21 External Keyboard Connector (CN18)

In addition to the Mini keyboard connector on the PCA-6780’s rear plate, there is an additional onboard external keyboard connector, allowing for greater flexibility in system design.

2.22 Audio Interface Connector (CN7)

The Audio Interface link is a 10 pin connector, the PCA-6780 can support Audio with the addition of optional PCM-231A-00A1. Detailed pin assignment refer to Appendix B.

21 Chapter 2 Installation