20
User's Manual |
KS-KH
Chapter 4
COM3/COM4 RS232/422/485 Select
These jumpers allow you to configure the Serial COM ports to RS232, RS422 (full duplex) or
RS485. JP12, JP13 and JP18 are used to configure Serial COM port 3; JP5, JP6 and JP19 are
used to configure Serial COM port 4. The pin assignments of COM port 3 and COM port 4 will
vary according to these jumpers’ settings. You can also configure the RS485 auto flow mecha-
nism through the BIOS setup utility. For more information, please refer to Chapter 7.
JP13 (for COM3) / JP5 (for COM4)
JP12 and JP18 (for COM3) / JP6 and JP19 (for COM4)
1-3, 2-4 On:
RS232 (default)
5
3
1
6
4
2
3-5, 4-6 On:
RS422 Full Duplex/RS485
6
4
2
5
3
1
COM3 / COM4
RS485
RS422
Full Duplex
RS232
2
1
9
RXD
DCD TXD
DT
R
GND
DSR
RT
S
CTS
RI
2
1
9
RXD-
RXD+ TXD+
TXD- NC.
NC.
NC.
NC.
2
1
9
D
ATA
-
D
ATA
+
NC. NC.
NC.
NC.
NC.
COM3 / COM4
RS485
RS422
Full Duplex
RS232
RXD+
TXD+
RXD-
TXD-
1 2 3 4 5
6 7 8 9
N.C. N.C. N.C. N.C.
DCD
TXD
RXD
DT
R
GND
1 2 3 4 5
RT
S
RI
DSR
CTS
6 78 9
N.C. N.C. N.C. N.C.
6 7 89
D
ATA
+
D
ATA
-
N.C.
N.C.
1 2 3 4 5
1-3, 4-6 On:
RS232 (default)
1
3
5
2
4
6
3-5, 4-6 On:
RS422 Full Duplex
2
4
6
1
3
5
3-5, 2-4 On:
RS485
1
3
5
2
4
6
Buzzer
USB 3/4
USB 3.0
USB 1/2
USB 3.0
STB_LED
PWR_BTN_1
HDMI (default)/DP
DVI
1
-
DC-in
GLAN 2
GLAN 1
PCIe x16 (PCIE1)
SPI Flash
BIOS
1
2
10
9
9
USB 13/14
1
2
10
COM 4
VGA
Clear CMOS
Data (JP1)
PS/2 Power Select
(JP14)
6
(JP13) (JP19)
1
6
6
1
(JP12) (JP18)
1
6
6
1
1
2
10
COM 3
1
(JP10)
6
6
9
1
2
10
COM 2
9
1
2
(JP11) (JP17)
6
6
1
2
1
2
10
COM 1
9
1
2
16
1
4-pin power
1
2
3
4
JP8
1
6
1
(JP5)
6
2
1
(JP6)
6
2
JP7
COM 5
1
2
10
9
COM 6
1
2
10
9
21
(JP4)
PCIe x4 (PCIE2)
Reset
DDR4_1 SODIMM
DDR4_2 SODIMM
1
(JP9)
6
6
1
1
2
1
12
6
1
4
SATA Power
1
4
Power Button
Power LED
HDD LED
M.2 Type 2280
(PCIe)
LPC
1
2
14
1
1
DIO Power
DIO
EXC
+
SATA 3.0
USB 11-12
USB 2.0
USB 2.0
USB 9
(JP16)
1
1
(JP15)
1
SATA 0
SATA 1
1
SIM
Mini PCIe 1
1
bettery
1
1
1
USB 2.0
SIM
Mini PCIe 2
COM 2
COM 1
Front Audio
2
1
10
9
1
2
1
29
30
LVDS LCD
Panel
JP2
JP3
5
1
Front Panel
13
1
10
JP13
JP12, JP18
6
4
2
5
3
1
JP6, JP19,
JP5
6
4
2
5
3
1
Note:
When COM3 RS232/422/485 is selected, JP12 and JP18 must be set in accor-
dance to JP13. And when COM4 RS232/422/485 is selected, JP6 and JP19 must
be set in accordance to JP5.
NC.
GND
GND
GND
GND
