Kontron KTT20-pITX - Manual (Page 47)

KTD-S0044-G Page 43 Appendix C: Connector Overview
KTT20/pITX User's Guide
Pin
Audio
J1800
Speaker
J1801
S/PDIF
J1802
1 LINE_IN_L SPK_R# SPDIF_OUT
2 MIC_IN SPK_R GND
3 LINE_IN_R SPK_L#
4 LINE_OUT_L SPK_L
5 GND
6 LINE_OUT_R