pITX-iMX8M – User Guide Rev. 1.4
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5/
Jumpers, Switches and Connectors
5.1.
Hardware Configuration Setting
This chapter gives the definitions and shows the positions of jumpers, headers and connectors. All of the
configuration jumpers on the board are in the proper position. The default settings shipped from factory are marked
with an asterisk (*).
In general, jumpers on the board are used to select options for certain features. Some of the jumpers are designed to
be user-configurable, allowing for system enhancement. The others are for testing purpose only and should not be
altered. To select any option, cover the jumper cap over (SHORT) or remove (NC) it from the jumper pins according to
the following instructions. Here, NC stands for “Not Connect”.
Table 7: Jumpers and Connectors
Jumpers
Function
Remark
J18
LVDS Panel Voltage
Header Type: WTB 3-Pin header 2.54 mm pitch
Possible Source: Samtec TSW-103-07-L-S
J29
LVDS Backlight Voltage
Select Jumper
Header Type: WTB 3-Pin header 2.54 mm pitch
Possible Source: Samtec TSW-103-07-L-S
Connectors
Function
Remark
CPU_FAN1 (J8)
CPU FAN Connector
Header Type: WTB 3-Pin header, 1.25 mm pitch
Possible Source: Molex Picoblade™ 53398-0371
LVDS (J11)
LVDS Connector
Header Type: WTB 2x20-Pin header 1.27 pitch
Possible Source: Samtec SHF-120-01-L-D-SM-K-TR
Mates with: Don Connex A52-40-2-G, Samtec FFTP-20
series, or similar.
DC 4-pin (J16)
Power Connector
Header Type: WTB 4-Pin header 2.5 mm pitch
Possible Source: JST B4B-XH-A(LF)(SN)
DC Jack (J15)
Power Connector
Header Type: Power Jack with locking option 2.0/5.7 mm
Possible Source: Kycon KLDHCX-0202-A-LT
M.2 (J1)
PCISIG M.2 Key B socket
Standard 75-pin socket
GPIO (J17)
GPIO connector
Header Type: WTB 2x6-Pin header, 2.0 mm pitch
Possible Source: Molex 87758-1216
MicroUSB OTG AB (J2)
USB connector
Standard 5-pin connector
USB 3.0 (J13)
USB connector
Standard Socket: Dual Stacked Type A Socket
USB 2.0 internal (J3)
USB internal
Header Type: WTB 4-Pin header, 1.25 mm pitch,
Possible Source: Molex Picoblade™ 53398-0471
Internal audio (J9)
Audio connector
Header Type: WTB 9-Pin header, 1.25 mm pitch
Possible Source: Molex Picoblade™ 53398-0671
SPI (J26)
SP/I2C3 header
Header Type: WTB 10-Pin header, 1.25 mm pitch,
Possible Source: Molex Picoblade™ 53398-1071
RS232 (J19)
RS232 header w/HW flow
control
Header Type: WTB 5-Pin header, 1.25 mm pitch
Possible Source: Molex Picoblade™ 53398-0571
RS232 (J3, J25)
RS232 header w/HW flow
control
Header Type: WTB 5-Pin header, 1.25 mm pitch
Possible Source: Molex Picoblade™ 53398-0571
microSIM/microSD
(J12)
Dual Card Card holder
microSIM/microSD
Standard
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