D-5
Appendix D BPN-SAS-846EL Backplane Specifications
7. Fan Connectors
The 3-pin connectors, designated FAN1,
FAN2, and FAN3, provide power to the
fans. See the table on the right for pin
definitions.
Fan Connectors
Pin# Definition
1
Ground
2
+12V
3
Tachometer
8 - 13. SAS Ports
The Primary and Secondary sets of SAS
ports provide expander features including
cascading and failover From right to left
the ports are Primary 1/2/3 and Second-
ary 1/2/3.