Appendix B
Hardware Configuration
©
National Instruments
B-15
T-SGPIO Headers (TSGPIO-1/TSGPIO-2)
Two serial-link general-purpose input/output (SGPIO) headers
(TSGPIO-1/T-SGPIO-2) on the motherboard support serial link interfaces
for the onboard SATA connectors. Refer to Table B-21 for pin definitions.
Figure B-9.
T-SGPIO Header (TSGPIO-1/T-SGPIO-2)
Overheat/Fan Fail LED Header (JOH1)
The JOH1 header connects an LED indicator to warn of chassis overheating
or fan failure. This LED blinks when a fan failure occurs. Refer to
Table B-22 for pin definitions.
Figure B-10.
Overheat/Fan Fail LED Header (JOH1)
Table B-21.
T-SGPIO Pin Definitions
Pin
Definition
1
No connection
2
No connection
3
Ground
4
Data
5
Load
6
Ground
7
Clock
8
No connection
1
7
8
2
2
1
