AXIOMTEK SBC84830 Series, Руководство пользователя

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SBC84830 Series All-In-One ECX Board User’s Manual
Jumpers and Connectors 16
COM2 Description
1 Data Carrier Detect (DCD)
2 Data Set Ready (DSR)
3 Receive Data (RXD)
4 Request to Send (RTS)
5 Transmit Data (TXD)
6 Clear to Send (CTS)
7 Data Terminal Ready (DTR)
8 Ring Indicator (RI)
9 Ground (GND)
10 N.C.
COM2
1
2
2.4.10 Flat Panel Bezel Connectors: CN2, CN8, CN9,
CN10
„ Power LED :CN2
This 3-pin connector, designated as Pins 1, 2 and 3, connects the
system power LED indicator to such a switch on the case. Pin 1
is
assigned as +, and Pin 2 and 3 as -. The Power LED lights up when
the system is powered ON.
„ External Speaker and Internal Buzzer Connector :CN8
Pin 1, 2, 3 and 4 of CN8 can be connected to the case-mounted
speaker unit or internal buzzer. While connecting the CPU card to an
internal buzzer, please short pins 1-2; while connecting to an external
speaker, you need to set these jumpers to Open and connect the
speaker cable to pin 3 (+) and pin 4 (-).
„ HDD Activity LED :CN9
This connection is linked to hard drive activity LED on the control panel.
LED flashes when HDD is being accessed. Pins 1 and 2 of CN9 can be
connected to the hard disk drive and the front panel HDD LED.
Pins 2
is assigned as -, and Pin1 as +.
„ System Reset Switch :CN10
Pins 1 and 2 of CN10 can be connected to the case-mounted reset
switch that reboots your computer, not turns OFF the power switch.
It is a better way to reboot your system for a longer life of the system’s
power supply.