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3.2.15 JCOM2 (COM2 RI pin RI/5V/12V Select)
15
JCOM11 Jumper Select
1 2
5 6
1-2 Close: 5V (Power COM)
1 2
5 6
3-4 Close: RI (Stand COM) Default
1 2
5 6
5-6 Close: 12V (Power COM)
Pin 1