
Configuration and Setup
VL-EPU-4562/4462 Reference Manual
17
Jumper
Block
Pins
Function
Description
V3
1-2
Primary/Backup
BIOS Select
Jumper In: Use Backup BIOS on the base board
Jumper Out: Use Primary BIOS on the COM Express
Module (default)
V4
1-2
Backup BIOS
Write Protect
Jumper In: Backup BIOS is write-protected
(default)
Jumper Out: Backup BIOS is not write-protected
Note:
Backup BIOS write protection is not currently implemented