User manual

PCA-6009 User Manual 22
2.12 Front Panel Connectors (CN16, 17, 18, 19)
There are several external switches to monitor and control the PCA-6009
2.12.1 Power LED (CN16)
CN16 is a 5-pin connector for the power on LED. Refer to Appendix B
for detailed information on the pin assignments. If a PS/2 or ATX power
supply is used, the system's power LED status will be as indicated below:
2.12.2 External speaker (CN17)
CN17 is a 4-pin connector for an external speaker. If there is no external
speaker, the PCA-6009 provides an onboard buzzer as an alternative. To
enable the buzzer, set pins 3-4 as closed.
Table 2.1: PS/2 or ATX power supply LED status
Power mode LED (PS/2 power) LED (PS/2 power)
System On On On
System Suspend Fast flashes Fast flashes
System Off Off Slow flashes