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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 denitions.
A. Internal Buzzer
B. Speaker Header
Internal Buzzer
Pin Denition
Pin# Denitions
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 denitions.
Speaker Connector
Pin Denitions
Pin Setting Denition
Pins 3~4 Internal Speaker
Pins1~4 External Speaker
A
B