Enoch Systems SHB120, Руководство пользователя

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SHB120 LAG1155 Full-Size SBC U
ser’s Manual
Jumpers And Connectors
15
2.4.9 Front Panel Connector (CN15)

Power LED
This 3-pin connector denoted as Pin 1 and Pin 5 connects the system power LED indicator to
such a switch on the case. Pin 1 is assigned as +, and Pin 5 as -. The Power LED lights up
when the system is powered ON. Pin 3 is defined as GND.

External Speaker and Internal Buzzer Connector
Pin 2, 4, 6 and 8 can be connected to the case-mounted speaker unit or internal buzzer. While
connecting the CPU card to an internal buzzer, please short pins 2-4; while connecting to an
external speaker, you need to set pins 2-4 to Open and connect the speaker cable to pin 8 (+)
and pin 2 (-).

ATX Power On/Off Button
This 2-
pin connector denoted as Pin 9 and 10 connects the front panel’s ATX power button to
the CPU card, which allows users to control ATX power supply to be power on/off.

System Reset Switch
Pin 11 and 12 can be connected to the case-mounted reset switch that reboots your computer
instead of turning OFF the power switch. It is a better way to reboot your system for a longer
life of the system’s power supply.

HDD Activity LED
This connection is linked to hard drive activity LED on the control panel. LED flashes when
HDD is being accessed. Pin 13 and 14 connect the hard disk drive to the front panel HDD LED,
Pin 13 assigned as -, and Pin 14 as +.