Taiwan Commate Computer Inc. PV-DDR User Manual page 16

2.4.15 Microphone In Connector
The Microphone In phonejack is used to attach a monaural micro phone for live
audio input for playback, mixing, or recording.
2.4.16 Game/MIDI Port
The Game/MIDI Port connector is used to attach a joy stick for game
interaction or to attach an external MIDI device for playback, mixing, or
recording.
2.4.17 ATAPI IDE/Sony CD-ROM Audio (4-pin JCDIN1)
The ATAPI IDE/Sony CD-ROM Au dio connector is used to connect the audio
cable from either an ATAPI IDE or Sony CD-ROM drive for playback, mixing,
and recording.
2.4.18 Panel Connection (24-pin JFRNT)
JFRNT Connector
GREENLED
PWRLED
SPKR
RESET
IDELED
PWRBNT
SMISW
WARNING: To avoid the system from failing, turn off the power before
connecting any devices to the system.
Function
Suspend Mode LED
Power LED
Speaker
Reset Switch
HDD LED
ATX Power Button Connector
Sleep Switch