Jetway Computer JBC381F39 - Manual (Page 15)

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(3) JBAT1 (3-pin): Clear CMOS
CMOS Clear Setting
2-3 Closed：Clear CMOS
JBAT1
1-2 Closed： Normal；
1
3
1
3
(4) JCOMP1 (6-pin): COM1 Header Pin9 Function Select
3-4 Closed : +12V;
JCOMP1
1-2 Closed: RS232; 5-6 Closed : +5V
1
1 1