Intel ICH10R - Manual (Page 29)

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(10) IR infrared module Headers (5-pin): IR1
This connector supports the optional wireless transmitting and receiving infrared
module. You must configure the setting through the BIOS setup to use the IR function.
IR infrared module Headers
IR
Pin 1
GN
D
+5
VX
IRRX G
ND
IR
TX
2
5
6
(11) Serial COM Port header: COM1
COM1 is a 9-pin RS232 connector.
Serial COM Port 9-pin Block
Pin1
(12) SPDIF Out header: HDMI_SPDIF
The SPDIF output is capable of providing digital audio to external speakers or compressed
AC3 data to an external Dolby digital decoder. Use this feature only when your stereo system
has digital input function.
1 2
SPDIF
GND
HDMI_SPDIF_OUT