Winmate A831, User Manual

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2.5.5 JP9: External VR 2.5.5 JP9: External VR
JST-B3B-PH-KL JST-B3B-PH-KL
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1 3
A831 SBC User Manual
16 16
2.5.6 CON1, 2: COM1~COM4 2.5.6 CON1, 2: COM1~COM4
20x2 header, pitch 2.0mm 20x2 header, pitch 2.0mm
Pin No. SYMBOL
1 5 Volts
2 VR Out
3 GND
Pin No. SYMBOL Pin No. SYMBOL
20 GND 19 GND
18 FK NRI2 17 FK NDTR2
16 FK NCTS2 15 FK NSOUT2
14 FK NRTS2 13 FK NSIN2
12 FK NDSR2 11 FK NDCD2
10 GND 9 GND
8 FK NRI1 7 FK NDTR1
6 FK NCTS1 5 FK NSOUT1
4 FK NRTS1 3 FK NSIN1
2 FK NDSR1 1 FK NDCD1