PCA-6184, ed. 1 User’s Manual 22
2.12 Front Panel Connectors (CN16, 17, 18, 19, 21&22)
There are several external switches to monitor and control the PCA-6184.
2.12.1 Power LED and Keyboard Lock(CN16)
CN16 is a 5-pin connector for the power on LED and Keyboard Lock.
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 extenal speaker. If there is no external
speaker, the PCA-6184 provides an onboard buzzer as an alternative. To
enable the buzzer, set pins 3-4 as closed
Table 2.2: PS/2 or ATX Power Supply LED Status
Power Model LED (PS/2 power) LED (ATX Power)
System On On On
System Suspend Fast Flashes Fast Flashes
System Off Off Slow Flashes
CPU
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