Kontron COMe Ref. Carrier T2 - Manual (Page 38)

COM Express™ miniBaseboard Type 2 / Connectors and Features
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5.7 High Definition Audio
5.7.1 Front Panel and internal connectors
On both miniBaseboards a Realtek ALC888 High Definition Audio Codec supports analog, optical and digital audio
connection.
Audio Connector J51 - Speaker Configuration
The Audio Connector J51 on ETXexpress® miniBaseboard is a full featured analog audio jack for speaker configuration
up to 8-channel. On COM Express™ miniBaseboard Type 2 the Audio Connector combines analog audio output with an
optical Toslink S/PDIF replacing J71. Therefore only 6-channel speaker configuration is possible.
J51 2-channel 4-channel 6-channel 8-channel
Orange - - Center/Subwoofer Center/Subwoofer
Black - Rear Speaker Side Speaker Rear Speaker Out
Gray - - - Side Speaker Out
Blue Line In Line In Line In Line In
Green Line Out Front Speaker Front Speaker Front Speaker
Pink Mic In Mic In Mic In Mic In