External Speaker And Internal Buzzer Header (Cn9); Power Led Header (Cn10); Inverter Connector (Cn11); Power And Reset Button Connector (Cn12) - AXIOMTEK PICO300 User Manual

2.5.7

External Speaker and Internal Buzzer Header (CN9)

Pin 1, 2 and 3 connect the case-mounted speaker unit or internal buzzer. While
connecting to an internal buzzer, please set pin 2 and 3 closed (default); while
connecting to an external speaker, you need to set pins 2 and 3 opened and connect the
speaker cable to pin 1(+) and pin 2(-).
Pin
1
2
3
2.5.8

Power LED Header (CN10)

The CN10 is for power LED interface.
Pin
1
2
2.5.9

Inverter Connector (CN11)

This is a Hirose DF13-8P-1.25C 8-pin connector for inverter. We strongly recommend
you to use the matching DF13-8P-1.25C connector to avoid malfunction.
Pin
1
2
3
4
5
6
7
8
2.5.10

Power and Reset Button Connector (CN12)

This is a 3-pin (pitch=1.25mm) wafer connector which is compliant with Molex
530470310 for power and reset button interface.
Pin
1
2
3
Board and Pin Assignments
Signal
EXT SPK+
EXT SPK-
Buzzer
Signal
+5V
GND
Signal
VBL1 (+12V level)
VBL1 (+12V level)
VBL2 (+5V level)
VBL_ENABLE
GND
GND
GND
VBL Brightness Control
Signal
FP_PSIN_N
GND
FP_RST_N
PICO300 Pico-ITX Board
1
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