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C7Z87-OCE User’s Manual
Internal Buzzer (SP1)
The Internal Buzzer (SP1) can be
used to provide audible indications for
various beep codes. See the table on
the right for pin denitions.
A. Internal Buzzer
B. Speaker Header
Internal Buzzer
Pin Denition
Pin# Denitions
Pin 1 Pos. (+) Beep In
Pin 2 Neg. (-) Alarm
Speaker
Speaker (JD1)
On the JD1 header, Pins 3~4 are used
for internal speaker. Close pins 3~4
with a cap to use the onboard speaker.
If you wish to use an external speaker,
close pins 1~4 with a cable. See the
table on the right for pin denitions.
Speaker Connector
Pin Denitions
Pin Setting Denition
Pins 3~4 Internal Speaker
Pins1~4 External Speaker
A
B