7
(continued from previous page)
Jumper
Option
Setting Description
J18
USER SWs and
LED Selection
1-2
Connect PAD4 pin to SW5
3-4
Connect PAD5 pin to SW4
5-6
Connect PAD6 pin to SW3
7-8
Connect PAD7 pin to SW2
9-10
Connect PAD0 to R23 potentiometer
11-12
Connect PT4 pin to D3 LED
13-14
Connect PT5 pin to D4 LED
15-16
Connect PT6 pin to D5 LED
17-18
Connect PT7 pin to D6 LED
J23
POWER
Selection
1-2
Selects the board to be powered from the 3.3V elevator
card rail
3-4
Selects the board to be powered from the 5V USB
connector
5-6
External source selected as power source
TOWER SYSTEM
