Serial Port Connector: Jcom1; Cd-In Connector: Jcd1; Front Panel Audio Connector: Jaud1 - MSI MS-7173 User Manual

M S-7173 M ainboard

Serial Port Connector: JCOM1

The mainboard provides one 9-pin header as serial port JCOM1. The port is a 16550A
high speed communication port that sends/receives 16 bytes FIFOs. You can attach
a serial mouse or other serial devices directly to it.
9
JCOM1

CD-In Connector: JCD1

This connector is provided for CD-ROM audio.

Front Panel Audio Connector: JAUD1

The JAUD1 front panel audio connector allows you to connect to the front panel
audio and is compliant with Intel
2 10
9
1
JAUD1
2-18
PIN
1
2
R
GND
JCD1
Front Panel I/O Connectivity Design Guide.
®
PIN SIGNAL
1 AUD_MIC
2 AUD_GND
3 AUD_MIC_BIAS
4 AUD_VCC
5 AUD_FPOUT_R
6 AUD_RET_R
7 HP_ON
8 KEY
9 AUD_FPOUT_L
10 AUD_RET_L
Pin Definition
SIGNAL DESCRIPTION
1 DCD Data Carry Detect
2 SIN Serial In or Receive Data
3 SOUT Serial Out or Transmit Data
4 DTR Data Terminal Ready
5 GND Ground
6 DSR Data Set Ready
7 RTS Request T o Send
8 CTS Clear To Send
9 RI Ring Indicate
L
Pin Definition
DESCRIPTION
Front panel microphone input signal
Ground used by analog audio circuits
Microphone power
Filtered +5V used by analog audio circuits
Right channel audio signal to front panel
Right channel audio signal return from front panel
Reserved for future use to control headphone amplifier
No pin
Left channel audio signal to front panel
Left channel audio signal return from front panel