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WM342-KD331
COM 1
RS232/422/485
Select (JP7)
1
4
PS/2 KB/MS
2
6
2
6
COM 1 RS232/Power Select (JP9)
USB 5-6
CPU Fan
1
5
1
5
USB 2.0
COM 1
2
6
2
6
RS232/422/485
COM 1 RS232/422/485 Select (JP8)
Select (JP10)
1
5
1
5
4
1
8
5
COM1
+12V
VGA
Power
Socket LGA1151
PTN3355
DVI-I (DVI-D signal)
DP++
LAN 1
Intel I219LM
USB 1-2
USB 3.0
LAN 2
USB 3-4
Intel I211AT
USB 3.0
M.2 M Key
(for KD331-Q170)
LAN 3-4
M.2 M Key Supports
Optane Memory
(for KD331-C236)
Intel I211AT
PCIe 1 (PCIe x16)
PCIe 2 (PCIe x4)
Intel I211AT
Battery
2
6
COM 2 RS232/422/485 Select (JP11)
PCIe 3 (PCIe x16)
1
5
Front
COM 2 RS232/Power Select (JP14)
Audio
2
10
6
5
1
3
Chassis Intrusion
Clear CMOS
2
1
2
1
PCIe 4 (PCIe x4)
Nuvoton
Data (JP1)
1
9
NCT6106D
Realtek ALC888S
(JP13)
(JP12)
USB 3.0
COM 5
COM 6
6
5
6
5
COM 2
COM 3
COM 4
USB 5-6
9
1
9
1
1
9
1
9
1
2
1
1
2
11
1
5
10
1
10
S/PDIF
2
2
2
2
2
USB 9-10
or Optional
COM 2 RS232/422/485 Select (JP12)
Vertical USB
COM 2 RS232/422/485 Select (JP13)
JP7, JP8, and JP10 (for COM1) and JP11, JP12, and JP13 (for COM2) are used to configure the
COM ports to RS232, RS422 (full duplex) or RS485. The pin assignments of the COM ports will
vary according to the jumpers' settings.
Chapter 4 Jumper Settings
2 4 6
System Fan 2
JP7,
1
3
JP10, JP8
1 3 5
LPC
14
13
TPM (optional)
2
1
12
24
ATX Power
Standby
Power LED
1
13
1
2
Front Panel
11
1
2
LAN LED
7
8
DDR4_1
DDR4_3
DDR4_2
DDR4_4
SATA 3.0
2 4 6
1
7
1
7
SATA 0
SATA 1
Intel
JP11
1
7
1
7
SATA 2
SATA 3
C236/Q170
1 3 5
1
7
1
SMBus
SATA 4
3
5
1
System
6
5
Fan 1
JP13, JP12
2
Buzzer
SPI Flash
BIOS
1
1
19
1
DIO
2
10
2
2
USB 7-8
USB 2.0
1
2
Chapter 4
2 4 6
1 3 5
1-2 On: RS232
(default)
JP8 and JP10 (COM 1)
2 4 6
1 3 5
1-3, 2-4 On: RS232
(default)
3-5, 4-6 On:
RS422 Full Duplex/ RS485
1 2 3 4 5
6 7 8 9
RS232
9
2
RS232
22
JP7 (COM 1) / JP11 (COM 2)
2 4 6
2 4 6
1 3 5
1 3 5
3-4 On: RS422
5-6 On: RS485
Full Duplex
JP12 and JP13 (COM 2)
6
5
2 4 6
2
1
1-3, 2-4 On: RS232
1 3 5
(default)
3-5, 4-6 On:
RS422 Full Duplex/ RS485
COM 1
1 2 3 4 5
1 2 3 4 5
6 7 8 9
6 7 8 9
RS422
RS485
Full Duplex
COM 2
9
9
2
RS422
RS485
Full Duplex
6
5
1
2
2
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