Advantech PCA-6359 B.13 Power LED and Keylock Connector CN16, Table B-14 External speaker CN17

B.13 Power LED and Keylock Connector (CN16)

You can use an LED to indicate when the CPU card is on. Pin 1 of CN16 supplies the LED's power, and Pin 3 is the ground.

You can use a switch (or a lock) to disable the keyboard so that the PC will not respond to any input. This is useful if you do not want anyone to change or stop a program which is running. Simply connect the switch from Pin 4 to Pin 5 of CN16.

Table B-13: Power LED and keylock connector (CN16)

Pin	Function
1	LED power (+5 V)
2	NC
3	GND
4	Keyboard lock
5	GND

B.14 External Speaker Connector (CN17)

The CPU card has its own buzzer. You can also connect it to the external speaker on your computer chassis.

Table B-14: External speaker (CN17)

Pin	Function
1	+5 VCC
2	GND
3	Internal buzzer
4	Speaker out

96 PCA-6359 Series User's Manual