Appendix B
Hardware Configuration
©
National Instruments
B-13
Chassis Intrusion Header (JL1)
A chassis intrusion header is at JL1 on the motherboard. Attach an
appropriate cable from the chassis to inform you of a chassis intrusion
when the chassis is opened. Refer to Table B-18 for pin definitions.
Figure B-6.
Chassis Intrusion Header (JL1)
Fan Headers (Fan1–Fan8)
The NI RMC-8355 has six chassis/system fan headers (Fan1 to Fan6) and
two CPU fan headers (Fan7/Fan8) on the motherboard. These 4-pin fan
headers are backward compatible with the traditional 3-pin fans. However,
fan speed control is available for 4-pin fans only. A hardware monitoring
setting in the BIOS controls the fan speeds. (The default setting is
Disabled
.) Refer to Table B-19 for pin definitions.
Figure B-7.
Fan Header (Fan1–Fan8)
B17
Ground
A17
P12V
B18
Ground
A18
Ground
Table B-18.
Chassis Intrusion Header Pin Definitions
Pin
Definition
1
Intrusion input
2
Ground
Table B-17.
Universal I/O Power Connector Pin Definitions (Continued)
Pin
Definition
Pin
Definition
2
1
4
1