User`s manual

Chapter 2: Installation
2-17
X7SB4
B
A
Power LED
The Power LED connector is located
at JLED. This connection provides LED
Indication of power supplied to the sys-
tem. See the table on the right for pin
denitions.
Power LED
Pin Denitions
Pin#Denition
1 +5V
2 Key
3 Ground
External Speaker/Internal
Buzzer
On the J9 header, pins 1-4 are for an
External Speaker and pins 3-4 are for
the Internal Buzzer. See the table on the
right for speaker pin denitions. Note:
Connect a cable to pins 1-4 to user an
external speaker. If you wish to use the
onboard buzzer, you should close pins
3-4 with a cap.
Speaker Connector
PinSettingDenition
Pins 3-4 Internal Speaker
Pins 1-4 External Speaker
A. Power LED
B. Speaker