SBC86840 Series All-In-One Mini ITX Board User’s Manual
Jumpers and Connectors
9
2.3 Jumper
Settings
Proper jumer settings configure the SBC86840 to meet your application
purpose. We are herewith listing a summary table of all jumpers and
default settings for onboard devices, respectively.
Here is a list of jumper settings
:
Jumper
Default Setting
Jumper Setting
CN2 Pin 1: DCD
Short 7-9
JP1
COM2 Mode Select
CN2 Pin 8: RI
Short 8-10
CN3 Pin 1: DCD
Short 7-9
JP2
COM3 Mode Select
CN3 Pin 8: RI
Short 8-10
CN4 Pin 1: DCD
Short 7-9
JP3
COM4 Mode Select
CN4 Pin 8: RI
Short 8-10
JP4
COM1 Mode Select : RS-232
Short 3-5, 4-6
JP5
COM1 Mode Select : RS-232
Short 3-5, 4-6
JP6
COM1 Mode Select : RS-232
Short 1-2
CN7 Pin 1: DCD
Short 7-9
JP7
COM1 Mode Select
CN7 Pin 9: RI
Short 8-10
JP8
CPU Frequency Select : Auto
Short 1-2
JP9
CPU Frequency Select : Auto
Short 1-2
JP10
CPU Frequency Select : Auto
Short 1-2
JP11
LVDS Voltage select : 3.3V
Short 1-2
JP12
Audio Line Out/Speaker Out : Line Out
Short 1-3, 2-4
JP13
Clear CMOS Setting : Normal
Short 1-2
JP14
TPM Address Select : 4EH(Optional)
Short 1-2
JP15
Compact Flash Select : Slave (Optional)
Short 1-2
JP16
Compact Flash Power Select : 3.3V (Optional) Short 1-2
JP19
USB Port5/6(CN16) Power Select : 5V
Short 2-3
JP20
USB Port7/8(CN22) Power Select : 5V
Short 2-3
JP21
PCI-Express x16 Slot select : Normal
Short 1-2
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