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COM3/COM4 RS232/422/485 Select
Parallel
2
10
2
26
Front Audio
1
9
Buzzer
S/PDIF
1
25
1
5
2
12
Front
DIO
DIO Power
Panel
USB 2.0
9
1
5
1
System
LAN 2
Fan 1
Clear CMOS
LAN 1
Data (JP1)
1
1
ECX
SPI Flash
BIOS
USB 1-2
USB 3.0
LPC
14
USB 3-4
USB 3.0
2
1
HDMI (default)/DP
SATA 3.0
SATA 1
SATA 0
1
1
DVI
1
4
1
4
1
System
Fan 2
4-pin DC-out
DC-in
PCIe x16 (PCIE1)
These jumpers allow you to configure the serial COM ports to RS232, RS422 (full duplex) or
RS485. JP8, JP9 and JP15 are used to configure serial COM port 3. JP4, JP10 and JP16 are
used to configure serial COM port 4.
The pin functions of COM port 3 and COM port 4 will vary according to these jumpers' set-
tings. You can also configure the RS485 auto flow mechanism through the BIOS setup utility.
For more information, refer to Chapter 7.
Note:
When COM3 RS232/422/485 is selected, JP8 and JP15 must be set in accordance to
JP9. And when COM4 RS232/422/485 is selected, JP10 and JP16 must be set in ac-
cordance to JP4.
User's Manual |KS-SD
2
Auto Power-on
6
5
Select (JP11)
1
Power Button
4
3
DDR4_1 SODIMM
Power LED
HDD LED
2
1
6
6
1
DDR4_2 SODIMM
1
1
Reset
(JP4)
(JP10)
STB_LED
JP4, JP10
2
10
JP16
COM 4
1
9
(JP9) (JP16)
6
6
JP9
1
1
(JP8) (JP15)
6
6
JP8, JP15
1
1
2
10
COM 3
1
9
2
10
COM 2
1
9
(JP7) (JP14)
6
6
6
COM 2
2
2
1
1
4
(JP13)
(JP6)
6
6
1
1
2
(JP5)
(JP12)
6
6
1
1
2
10
COM 1
COM 1
1
9
16
6
6
COM3/COM4:
JP2
JP3
VGA
1
2
1
2
1
RS232/422/485
J22
6
1
2
J21
2
1
PCIe x4 (PCIE2)
or
2
1
COM3/COM4:
RS232/422/485
1 2 3 4 5
4
6
3
5
6 7 8 9
RS232
5
3
1
2
1
RS232
6
9
JP9
4
2
2
JP4
1
1-2 On: RS232
(default)
JP8 and JP15 (for COM3) / JP10 and JP16 (for COM4)
JP8, JP15, JP16
JP10
COM3 / COM4
1 2 3 4 5
6 7 8 9
RS422
Full Duplex
COM3 / COM4
2
2
9
1
9
1
RS422
Full Duplex
JP9 (for COM3) / JP4 (for COM4)
5
5
6
3
3
4
1
2
1
4
6
4
6
2
3
5
1
3
5
3-4 On: RS422
Full Duplex
6
6
5
4
3
4
2
1
2
4
6
2
4
6
2
1
3
5
1
3
1-3, 2-4 On:
3-5, 4-6 On:
RS232 (default)
RS422 Full Duplex/RS485
Chapter 4
1 2 3 4 5
6 7 8 9
RS485
9
RS485
6
5
4
3
2
1
2
4
6
1
3
5
5-6 On: RS485
5
3
1
5
19
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