A. Internal Speaker
(Buzzer)
B. OH/Fan Fail LED
Internal Speaker
The Internal Speaker, located at SP1,
can be used to provide audible indica-
tions for various beep codes. See the
table on the right for pin denitions.
Refer to the layout below for the loca-
tions of the Internal Buzzer (SP1).
Internal Buzzer (SP1)
PinDenition
Pin# Denitions
Pin 1 Pos. (+) Beep In
Pin 2 Neg. (-) Alarm
Speaker
A
Overheat/Fan Fail LED
The JOH1 header is used to connect
an LED indicator to provide warnings
of chassis overheating and fan failure.
This LED will blink when a fan failure
occurs. Refer to the tables on right for
pin denitions.
OH/Fan Fail LED
Status
State Message
Solid Overheat
Blinking Fan Fail
B
A