User manual
Chapter 2 Installation 
- 14 -  EC7-1817LNAR 
Audio Connector 
AUDIO connector provides LINE-IN, LINE-OUT and MIC-IN connector. LINE-In 
can be used to connect with audio signal input; LINE-OUT can be used to connect 
with earphone or loudspeaker with more appropriate power; MIC-IN can be used to 
connect with microphone to input sound. 
Pin  Signal Name 
Blue LINE-IN 
Green LINE-OUT 
AUDIO1 
Pink MIC-IN 
Status Indicating and Control Connector 
ATX Power Switch and HDD Indicating Connector (Pitch: 2.54mm) 
Pin  Signal Name Pin  Signal Name
1 PWRBTN#  2  GND 
3 GND  4 RESET# 
FP1 
5 HDD_LED-  6  HDD_LED+ 
Power Indicator Connector (Pitch: 2.54mm) 
Pin  Signal Name 
1 PWR_LED+ 
2 NC 
FP2 
3 GND 
Loudspeaker Output Connector (Pitch: 2.54mm) 
Pin  Signal Name 
1 SPEAKER 
2 NC 
3 GND 
FP3 
4 +5V 










