System fan connector (sys_fan1), 8 com 1 rs-422-485 mode (j422/1) – Avalue ECM-QM77 User Manual

Page 26

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ECM-QM77

26 ECM-QM77 User

’s Manual

2.4.7 System fan connector (SYS_FAN1)

Signal

PIN

GND

1

+12V

2

SYSFANIN

3

SYSFANOUT

4

2.4.8 COM 1 RS-422-485 mode (J422/1)

Signal

PIN PIN

Signal

485_422TX-

2

1

422RX-

485_422TX+

4

3

422RX+

+5V

6

5

GND

Note:

J422/485 is available after modify the mode of COM1

in BIOS setting

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