14
BISD3-QM77
User’s Manual
2.4
Jumpers Quick Reference
Function
Jumper Name
Page
CMOS Data Clearance
J12
ME Register Clearance
J15
AT / ATX Mode Selection
JP7
COM1 RS-232/422/485 Power
Selection
JP1
COM2 RS-232/422/485 Power
Selection
JP2
Brightness Selection
JP3
2.4.1
CMOS Data Clearance (J12)
1
Function
Pin closed
Illustration
Normal
(default)
1-2
1
Clear CMOS
2-3
1