Intel G31 User Manual page 13

(9) CD Audio-In Headers (4-pin) : CDIN
CDIN are the connectors for CD-Audio Input signal.
Please connect it to CD-ROM CD-Audio output connector.
(10) Parallel Port header (25-pin): PARALLEL
The On-board Parallel Port can be disabled through the BIOS
SETUP. .
(11) IR infrared module Headers (5-pin) : IR
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.
(12) SPDIF Out header: SPDIF Out
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.
IR
2
Pin 1
IR infrared module Headers
HDMI_SPDIF_OUT
11
CDIN
4
CD Audio-In Headers
Pin 1
PARALLEL Connector
6
5
SPDIF
GND
2
1
1