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ASUS P4B266-C motherboard user guide
2-31
13. Digital audio connector (4-1 pin SPDIF_C)
(on audio models only)
This connector connects an optional S/PDIF audio module that allows
digital instead of analog sound output. Connect one end of the audio
cable to the S/PDIF In/Out connector on the motherboard, and the
other end to the S/PDIF module.
12. ASUS iPanel connector (24-1 pin AFPANEL)
This connector allows you to connect an optional ASUS iPanel, an
easy-to-access drive bay with front I/O ports and status LEDs. If you
are not using an ASUS iPanel, you can connect an optional wireless
transmitting and receiving infrared module to the SIR connector.
P4B266-C
®
P4B266-C iPanel Connector
+5VSB
NC
CHASSIS#
+5 V
PCIRST#
GND
CIRRX
EXTSMI#
MLED-
NC
BATT
NC
SMBDATA
GND
+3VSB
IRRX
IRTX
NC
NC
NC
+5V SMBCLK
NC
+5VSB
NC
+5 V
GND
CIRRX
NC
GND
IRRX
IRTX
CIR
SIR
IR_CON
Standard Infrared (SIR)
Front View Back View
+5V
IRTX
IRRX
(NC)
GND
AFPANEL
P4B266-C
®
P4B266-C Digital Audio Connector
SPDIF_C
GND
+5V
SPDIF_IN
SPDIF_OUT
GND
1