50 Appendix B: Technical information
Jumper
1
2
3
pin
pin
pin
Side view
Auxiliary power supply selection
The following diagram shows the location of the auxiliary power supply selection
and their corresponding pin numbers:
As shown in the table below, place the jumper across pins 1 and 2 for a +5 V supply
output and across pins 2 and 3 for a +12 V supply output
Pin
Description
1-2
+5 V (default)
2-3
+12 V
By default, auxiliary power supply is strapped for +5 V (pins 1-2).
+5V
+12V
pin 2 pin 3
.