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20
JP20, JP21: COM4 Mode select
JP8
JP9
Mode
(2-3)
(2-3)
RS232
(1-2)
(2-3)
RS485 Half Duplex
(1-2)
(1-2)
RS485/422 Full Duplex
JP22: Enable COM4 RS-485/422 Receiver Termination
Pin
Function
(1-2) Closed High
(2-3) Closed Low
JP19: COM4 Pin9 select
Pin
Function
(1-2) Closed
RI
(3-4) Closed
+5V
(5-6) Closed
+12V
CN26,CN27: SATA
Pin Function
1
GND
2
SATA_TP
3
SATA_TN
4
GND
5
SATA_RN
6
SATA_RP
7
GND
J2, J3: SATAPower
Pin Definition
1
12V
2
GND
3
GND
4
5V
CN14: M_PCIE1 (mini PCIe Slot)