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COM1/COM2 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
Data (JP1)
LAN 1
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 0
SATA 1
1
1
DVI
1
4
1
4
1
System
Fan 2
4-pin DC-out
J21
PCIe x16 (PCIE1)
DC-in
JP6
JP5, JP12
6
4
2
These jumpers allow you to configure the serial COM ports to RS232, RS422 (full duplex) or
RS485. JP5, JP6 and JP12 are used to configure serial COM port 1. JP7, JP13 and JP14 are
used to configure serial COM port 2. The pin functions of COM port 1 and COM port 2 will vary
according to these jumpers' settings.
Both COM1 and COM2 are wired as either external ports or internal connectors. You can also
configure the RS485 auto flow mechanism through the BIOS setup utility. For more informa-
tion, refer to Chapter 7.
User's Manual |KS-SD
Auto Power-on
Select (JP11)
1
Power Button
DDR4_1 SODIMM
Power LED
HDD LED
COM2:
6
6
DDR4_2 SODIMM
RS232/422/485 Select
1
1
Reset
(JP4)
(JP10)
STB_LED
6
2
10
JP7, JP14
COM 4
4
1
9
(JP9) (JP16)
JP13
6
6
2
1
1
(JP8) (JP15)
6
6
1
1
2
10
COM1/COM2:
COM 3
1
9
RS232/422/485
2
10
COM 2
1
9
(JP7) (JP14)
6
6
COM 2
2
2
1
1
(JP6)
(JP13)
6
6
1
1
(JP12)
(JP5)
6
6
1
1
2
10
COM 1
COM 1
1
9
2
16
6
6
1
JP2
JP3
VGA
1
1
2
1
2
J22
6
1
2
COM1/COM2:
1
2
PCIe x4 (PCIE2)
RS232/422/485
COM1:
RS232/422/485 Select
5
3
1
1 2 3 4 5
6 7 8 9
RS232
5
3
1
2
1
or
RS232
9
6
4
2
1-2 On: RS232
(default)
JP5 and JP12 (for COM1) / JP7 and JP14 (for COM2)
6
4
2
1-3, 2-4 On:
RS232 (default)
Note:
When COM1 RS232/422/485 is selected, JP5 and JP12 must be set in accordance to
JP6. And when COM2 RS232/422/485 is selected, JP7 and JP14 must be set in accor-
dance to JP13.
COM1 / COM2
1 2 3 4 5
6 7 8 9
RS422
Full Duplex
COM1 / COM2
2
9
1
9
RS422
Full Duplex
JP6 (for COM1) / JP13 (for COM2)
5
5
6
3
3
4
1
1
2
3-4 On: RS422
Full Duplex
5
6
3
4
1
2
3-5, 4-6 On:
RS422 Full Duplex/RS485
Chapter 4
1 2 3 4 5
6 7 8 9
RS485
2
1
9
RS485
6
5
4
3
2
1
5-6 On: RS485
5
3
1
18
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