Winmate I771 User Manual page 25

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.
COM4
B1
B6
A1
A6
COM3
2.5.8 AUDIO401: Audio Jack ( Pin-header )
Color
Blue
Green
Pink
C0~C4
B1~B4
A1~A4
I771 Motherboard User Manual
Pin No. SYMBOL
A1 FK_NDCD1
A2 FK_NSIN1
A3 FK_NSOUT1
A4 FK_NDTR1
A5
A6 FK_NDSR1
A7 FK_NRTS1
A8 FK_NCTS1
A9 FK_NRI1
Signal
Line In
Line Out
Microphone In
Pin-Header
Line in
Line out
Mic in
16
Pin No.
B1
B2
B3
B4
GND B5
B6
B7
B8
B9
SYMBOL
FK_NDCD2
FK_NSIN2
FK_NSOUT2
FK_NDTR2
GND
FK_NDSR2
FK_NRTS2
FK_NCTS2
FK_NRI2