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19
USB 3-4
USB 3.0
USB 1-2
USB 3.0
J22
JP2
JP3
J21
HDMI (default)/DP
DVI
System
Fan 2
1
Front
Panel
5
1
2
1
10
9
1
1
1
1
4
SATA Power
-
DC-in
LAN 2
LAN 1
PCIe x16 (PCIE1)
SPI Flash
BIOS
VGA
Clear CMOS
Data (JP1)
Auto Power-on
Select (JP11)
(JP9)
1
6
(JP8) (JP15)
1
6
6
1
1
2
10
COM 3
1
(JP6)
6
6
9
1
2
10
COM 2
9
1
2
(JP7) (JP14)
6
6
1
2
1
2
10
COM 1
9
1
2
16
LPC
1
2
14
4-pin power
1
1
2
3
4
PCIe x4 (PCIE2)
Power
Button
Reset
DDR4_2 SODIMM
DDR4_1 SODIMM
1
(JP5)
6
6
1
1
1
6
6
2
2
2
6
1
4
Status LED
HDD LED
2
25
26
Parallel
1
DIO Power
DIO
S/PDIF
Front Audio
2
5
1
1
10
9
ECX
+
SATA 3.0
USB 2.0
13-14
(JP13)
1
1
(JP12)
1
SATA 0
SATA 1
1
Mini PCIe
mSATA
System
Fan 1
1
1
bettery
1
1
1
2
12
USB 2.0
COM1 /COM2 /COM3 RS232/422/485 Select (mainboard)
1-3, 2-4 On:
RS232 (default)
JP6 (for COM1) / JP13 (for COM2) / JP9 (for COM3)
RS485
COM1 / COM2 / COM3
1-2 On: RS232
(default)
1
3
5
2
4
6
RS422
Full Duplex
3-4 On: RS422
Full Duplex
5-6 On: RS485
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.
NC.
2
1
9
DA
TA
-
DA
TA
+
TXD
NC.
NC.
NC.
NC.
NC.
NC.
COM1/COM2/COM3:
RS232/422/485
JP5 and JP12 (for COM1) / JP7 and JP14 (for COM2) /JP8 and JP15 (for COM3)
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. JP8, JP9 and JP15 are used to configure serial COM port
3. The pin functions of COM port 1 to COM port 3 will vary according to these jumpers’ set
-
tings. In addition, COM port 1 and COM port 2 can be switched between normal RS232 and
RS232 with power. You can also configure the RS485 auto flow mechanism with the BIOS
setup utility. For more information, refer to Chapter 7.
COM1 / COM2 / COM3
RS485
RS422
Full Duplex
DA
TA
+
DA
TA
-
N.C.
N.C.
N.C.
RXD+
TXD+
RXD-
TXD- N.C.
1 2
3
4 5
6 7 8 9
N.C. N.C. N.C. N.C.
RS232
1 2
3
4 5
6 7 8 9
DCD (or
+12V)
TXD
RXD
DT
R
GND
RT
S
RI (or
+5V)
DSR
CTS
JP5, JP12
JP6
6
4
2
5
3
1
2
4
6
1
3
5
5
3
1
6
4
2
3-5, 4-6 On:
RS422 Full Duplex/RS485
6
4
2
5
3
1
6
4
2
5
3
1
JP7, JP14
JP13
COM2:
RS232/422/485 Select
1
3
5
2
4
6
COM1:
RS232/422/485 Select
COM3:
RS232/422/485 Select
JP8, JP15
JP9
6
4
2
5
3
1
1 2
3
4 5
N.C. N.C. N.C. N.C.
6 7 8 9
Notes
:
1. When COM1 RS232/422/485 is selected, JP5 and JP12 must be set in accordance to JP6.
2. When COM2 RS232/422/485 is selected, JP7 and JP14 must be set in accordance to JP13.
3. When COM3 RS232/422/485 is selected, JP8 and JP15 must be set in accordance to JP9.
