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
defi nitions.
Power LED
Pin Defi nitions
Pin# Defi nition
1 +5V
2Key
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 defi 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 Defi nition
Pins 3-4 Internal Speaker
Pins 1-4 External Speaker
A. Power LED
B. Chassis Intrusion
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