PUMA Station Board
Jumper Settings
Jumpers JP1 to JP3
CPU Select
(Refer to DBII-486C Rev. 0 CPU module jumper settings on
page 4-5).
Jumper Block JP9 and JP10
CPU Voltage
The DBII-486C Rev. B supports 5 Volt CPUs. Optional
3.3 Volt CPUs are supported only if a regulator chip is
soldered on location U22. Set Jumper block JP9 and
JP10 according to the voltage of the CPU installed.
Warning:
If you are using a 3.3 Volt CPU, this jumper block must
be set to 3.3 Volt. Otherwise, the CPU will be
permanently damaged.
*
Default setting
4-9
u
CPU Modules
CPU Voltage
JP9/JP10
5V CPU*
1-2: On
3.3V CPU
2-3: On