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).
A. Internal Speaker
B. Power LED/Speaker
A
Internal Buzzer (SP1)
PinDenition
Pin# Denitions
Pin 1 Pos. (+) Beep In
Pin 2 Neg. (-) Alarm
Speaker
Power LED/Speaker
On the JD1 header, pins 1-3 are used
for a power LED and pins 4-7 are
used for an external speaker. If you
wish to use the onboard speaker, you
should close pins 6-7 with a jumper.
See the table on the right for speaker
pin denitions.
Speaker Connector
PinDenitions
Pin Setting Denition
Pins 6-7 Internal Speaker
Pins 4-7 External Speaker
B