Appendix B
Hardware Configuration
B-8
ni.com
Power Fail LED
The power fail LED connection is on pins 5 and 6 of JF1. Refer to
Table B-11 for pin definitions.
Reset Button
The reset button connection is on pins 3 and 4 of JF1. Attach the connection
to a hardware reset switch on the computer case. Refer to Table B-12 for
pin definitions.
Table B-10.
Overheat/Fan Fail/Power Fail LED Status
Pin 7
Pin 8
Red LED
Blue LED
Low
High
On: overheat/fan fail/
PWR fail
Solid on: overheat
Fast blinking: fan fail
Slow blinking: power fail
Off
High
Low
Off (system normal)
On (UID LED)
High
High
Off
Off
Table B-11.
Power Fail LED Pin Definitions
Pin
Definition
5
3.3 V
6
PWR fail LED
Table B-12.
Reset Button Pin Definitions
Pin
Definition
3
Reset
4
Ground