Axiomtek PICO841 Manual do Utilizador descarregar pdf (Página 22)

PICO841 Intel

®

Atom

TM

Processor E3845/E3827 Pico-ITX Board

16 Board and Pin Assignments

2.5.2 Fan Power Connector (CN3)

This is a JST B2B-ZH-K-S 1.5mm pitch wafer connector for fan power interface.

2 1

2.5.3 SMBus Connector (CN4)

This connector is for SMBus interface. The SMBus (System Management Bus) is a

simple 2-wire bus for the purpose of lightweight communication.

2.5.4 Power LED Header (CN6)

This header is for power LED interface.

2.5.5 External Speaker and Internal Buzzer Header (CN7)

Pin 1, 2 and 3 connect the case-mounted speaker unit or internal buzzer. While

connecting the CPU board 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(-).

1 3

Pin

Signal

1

+5V

2

GND

Pin

Signal

1

SMBus clock

2

SMBus data

3

GND

Pin

Signal

1

+5V

2

GND

Pin

Signal

1

EXT SPK+

2

EXT SPK-

3

Buzzer

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 79 80

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