Asus P1-P5945G - Manual (Page 54)

4-9 ASUS P1-P5945G/P2-P5945G
7. Back audio connector (20-1 pin Back_Audio Connector)
We recommend that you connect a high-definition front panel audio
module to this connector to avail of the motherboard’s high-definition
audio capability.
8. Digital audio connector (4-1 pin SPDIF_OUT)
This connector is for an additional Sony/Philips Digital Interface
(S/PDIF) port(s). Connect the S/PDIF module cable to this connector,
then install the module to a slot opening at the back of the system
chassis.
The S/PDIF module is purchased separately.
R
Digital Audio Connector
+5V SPDIFOU
T
GND
SPDIF_OUT
R
Back_Audio Connector
BACK_AUDIO
BCAZ LIN1
L
BCAZ LIN1
R
SENSE LIN1 BCAZ FRONT
L
BCAZ FRONTR SENSE FRONT BCAZ MIC1L BCAZ MIC1R SENSE MIC1
BCAZ CEN
L
BCAZ LEF
R
SENSE CN1
BCAZ SURBL BCAZ SURBR SENSE SURB
BCAZ SUR
L
BCAZ SUR
R
SENSE SUR
AGND_A
SPDIF_OUT module