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Ca r r i e r Board
Audio
VCCAUD
Audio power 5V output. This power signal is fed by ETX
CPU module.
GNDAUD
Audio Ground.
LOUTR
Right Line-out signal.
LOUTL
Left Line-out signal.
MIC (MIC-IN)
Microphone input signal.
LINR
Right Line-in signal.
LINL
Left Line-in signal.
Miscellaneous
3.3V (VCC3)
3V power input. This power signal is fed by ETX carrier board.
3.3V power is generated by linear regulator on carrier board or
provided by ATX power supply.
SERIRQ/DRQ2
SERIRQ or DRQ2 signal. SERIRQ is serial interrupt request
signal. DRQ2 is DMA request 2 signal. On this carrier board,
E C B - 9 0 1 A
Quick Installation Guide - 29 -
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