Appendix B
Hardware Configuration
B-16
ni.com
Power SMB (I
2
C) Connector (JPI
2
C)
The power system management bus (I
2
C) connector (JPI
2
C) monitors
power supply, fan, and system temperatures. Refer to Table B-24 for pin
definitions.
Figure B-11.
Power SMB (I
2
C) Connector (JPI
2
C)
Table B-22.
Overheat/Fan Fail LED Pin Definitions
Pin
Definition
1
5 VDC
2
Overheat active
Table B-23.
Overheat/Fan Fail LED States
State
Message
Solid
Overheat
Blinking
Fan fail
Table B-24.
Power SMB (I
2
C) Pin Definitions
Pin
Definition
1
Clock
2
Data
3
Power fail
4
Ground
5
+3.3 V
1
5