User`s manual

SBC86834 All-In-One Mini ITX Board User’s Manual
Jumpers and Connectors
10
2.3.1 COM1~COM6 Mode Select for Type Jumpers
(JP1, JP2, JP5, JP6, JP8, JP9)
These jumpers select the COM1 ~ COM6 ports’ DCD and RI mode.
Description Function Jumper Setting (JP2)
Pin 1=DCD
(Default)
Pin 1=5V
Pin 9=RI
(Default)
COM1 (CN4B)
Pin 9=12V