2.3.8 COM1~4 Mode Selection Jumpers: JP9, JP10,
JP12, JP13
These jumpers select the COM1, COM2, COM3, COM4 ports' DCD
and RI mode.
Description
COM1
Jumpers and Connectors
EP830 All-In-One EPIC Board User's Manual
Function
Pin 1=12V
Pin 1=5V
JP12
*Pin 1=DCD
(Default)
Pin 9=12V
Pin 9=5V
JP12
*Pin 9=RI
(Default)
Jumper Setting
JP12
JP12
JP12
JP12
JP12
JP12
13
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