Contec SPI-8451-LVA - Manual (Page 26)

3. Hardware Installations
SPI-8451-LLVA, SPI-8452-LLVA, SPI-8451-LVA
19
Front Panel Connector: CN2
This header can be connected to a front panel power switch. The front panel connector includes headers
for these I/O connections:
Power switch
This header can be connected the power on switch when ATX power supply use.
Power LED
This header can be connected to an LED that will light when the computer is powered on.
Hard drive activity LED
This header can be connected to an LED to provide a visual indicator that data is being read from or
written to an IDE hard drive. For the LED to function properly, the IDE drive must be connected to the
onboard IDE controller.
Speaker
A speaker can be installed on this product as a manufacturing option. The speaker is enabled by a
jumper on pins 9, 11, 13, 15 of the front panel connector. The speaker (onboard or offboard) provides
error beep code information during the POST in the event that the computer cannot use the video
interface. The speaker is not connected to the audio subsystem and does not receive output from the
audio subsystem.
Table 3.4. Front Panel Connector
Pin No.
1
3
5
7
9
11
13
15
Function
Power BT
GND
RESET
GND
VCC
GND
GND
BUZZER
Pin No.
2
4
6
8
10
12
14
16
Function
VCC
IDE ACT
N.C.
VCC
VCC
Power LED
N.C.
N.C.
Speaker
Reset Button
Power LED
9, 11, 13, 15
5, 7
8, 10, 12
Power Button
HDD LED
1, 3
2, 4
CN2
1
2
15
16
1
15
External Speaker
( E x . 8 Ω 0 . 2 5 W)
HDD Active Indicator LED
Power LED
Power Switch
for ATX
Reset Switch