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The P4X4-ALH Mainboard
Page 17
Hardware Installation
2.5.6. CD-IN/AUX-IN Connector
Connector: CN21 (CD-IN)/CN45 (AUX-IN)
Type: 4 pin un-housed
The mainboard has one CD-IN connector and one AUX-IN connector. The CD-
IN connector is used to connect the CD ROM audio out and allows the system
to receive audio input from the CD ROM. The AUX-IN connector allows the
system to receive signals from other audio devices like a radio or tape.
2.5.7. WOL (Wake-On-LAN) Connector
Connector: CN16 (WOL)
Type: 3 pin
The mainboard has a WOL (Wake-On-LAN) connector. This connector must be
connected to a LAN card that has Wake-On-LAN (WOL) output. This connector
powers up the system when a wakeup packet or signal is received through the
LAN card.
In order to use the WOL LAN card to trigger the power on the PC system, the
switching power supply must have the ability to provide a driving current of at
least 720 mA and be connected to a “5V standby” voltage.
WOL
5V_SB
Ground
1 5V_SB
2 Ground
3 WOL
Top View of a WOL Connector Front View of a WOL Connector
1 Left Channel CD/AUX-IN
2 Ground
3 Ground
4 Right Channel CD/AUX-IN
Top View of a CD/AUX-IN
Connector
Front View of a CD/AUX-IN
Connector
Right Channel
CD-IN/
AUX-IN
Left Channel
CD-IN/
AUX-IN
Ground
Ground
2.5.8. S/PDIF Connector (Optional)
Connector: CN36 (S/PDIF)
Type: 4 pin un-housed
The Sony Phillips Digital Interface, S/PDIF, connector is a digital interface that
can be used to improve the quality of the sound output from your system.