Filter
Top Products
21 Chapter 2 Installation
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.