Laptop User Manual

Hardware Preparation
MVME166IG/D2 2-5
2
SRAM Backup Power Source Select Header J7
Header J7 is used to select the power source used to backup the SRAM on the
MVME166.
Caution
Do not remove all jumpers from J7. This may disable the
SRAM.
If the battery is removed, jumpers must be installed on J7,
between pins 1 to 3 and pins 2 to 4, as shown in the Factory
Configuration drawing above.
J7
1
5
2
6
Primary Source OnboardBattery
Secondary Source Onboard Battery
J7
1
5
2
6
Primary Source VMEbus +5V STBY
Secondary Source VMEbus +5V STBY
(Factory Configuration)
J7
1
5
2
6
Primary Source VMEbus +5V STBY
Secondary Source Onboard Battery
J7
1
5
2
6
Primary Source Onboard Battery
Secondary Source VMEbus +5V STBY