Connecting Optional Devices - ECS L4IBMGL6 1.0 Manual

Connecting Optional Devices

Refer to the following for information on connecting the mainboard's optional
devices:
AUDIO1: Front Panel Audio header
This header allows the user to install auxiliary front-oriented microphone and
line-out ports for easier access.
Pin Signal Name
1 AUD_MIC
2 AUD_GND
3 AUD_MIC_BIAS
4 AUD_VCC
5 AUD_FPOUT_R
6 AUD_RET_R
7 NC
8 KEY
9 AUD_FPOUT_L
10 AUD_RET_L
Function
Front Panel Microphone input signal
Ground used by Analog Audio Circuits
Microphone Power
Filtered +5 V used by Analog Audio Circuits
Right Channel Audio signal to Front Panel
Right Channel Audio signal to Return from
Front Panel
Not Connected
No Pin
Left Channel Audio signal to Front Panel
Left Channel Audio signal Return from
Front Panel
19