Setting jumpers & connectors, Clear cmos jumper (clr_cmos), Serial port 2 5v / 12v power select jumper (jcom2) – Avalue EAX-Q77 User Manual

Page 24

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EAX-Q77

User’s Manual

24 EAX-Q77

User’s Manual

2.6 Setting Jumpers & Connectors

2.6.1

Clear CMOS Jumper (CLR_CMOS)

Default

Clear CMOS

PINS

Signal

1

GND

2

-RTCRST

2.6.2

Serial Port 2 5V / 12V Power Select Jumper (JCOM2)

+5V

+12V

Ring

(Default)

Signal

PINS

Signal

VCC

1

2

RI2-/5V/12V

NRI2-

3

4

RI2-/5V/12V

+12V

5

6

RI2-/5V/12V