User manual

I771 Motherboard User Manual
16
2.5.7 D-SUB Dual Serial Port
The serial port COM3/4, RS232 only, from A1 to A9 is COM3, and B1 to B9 is
COM4, which is supported by Fintek.
2.5.8 AUDIO401: Audio Jack ( Pin-header )
Pin No. SYMBOL Pin No. SYMBOL
A1 FK_NDCD1 B1 FK_NDCD2
A2 FK_NSIN1 B2 FK_NSIN2
A3 FK_NSOUT1 B3 FK_NSOUT2
A4 FK_NDTR1 B4 FK_NDTR2
A5 GND B5 GND
A6 FK_NDSR1 B6 FK_NDSR2
A7 FK_NRTS1 B7 FK_NRTS2
A8 FK_NCTS1 B8 FK_NCTS2
A9 FK_NRI1 B9 FK_NRI2
Color Signal
Blue Line In
Green Line Out
Pink Microphone In
Pin-Header
C0~C4 Line in
B1~B4 Line out
A1~A4 Mic in
B1
B6
A1
A6
COM4
COM3