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Hardware Setup
COM1~2 Voltage RI Select Jumper: JCMV1
This jumper specifies the operation voltage of the COM1 and COM2.
9
1
10
2
JCMV1
Important
Avoid adjusting the jumper when the system is on; it will damage the
board.
COM Port Power Jumper: JCOMP3~ JCOMP5, JCOM7
These jumpers specify the operation voltage of the onboard serial ports.
2-14
12V
12V
1
JCOMP1~6
COM1
5V
5V
COM2
5V
5V
1
1
+5V
+12V
RI
RI
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