2-2 Front Connector And Pin Definitions - Supermicro BPN-SAS2-936EL Series User Manual

SAS2-936EL Series Backplane User's Guide
2-2 Front Connector and Pin Definitions
1. EPP Ports
The EPP ports are used for manufacturer's
diagnostic purposes only.
2. Primary and Secondary Expander Chips
This primary and secondary expander chips
allow the backplane to support dual port, cas-
cading, and failover configurations.
3. Backplane Main Power Connectors
The 4-pin connectors, designated PWR1,
PWR2, PWR3 AND PWR4, provide power to
the backplane. See the table on the right for
pin definitions.
4. Fan Connectors
The 4-pin connectors, designated Fan1, Fan2,
and Fan3, provide power to the fans. See the
table on the right for pin definitions.
5. - 10. SAS Ports
Primary and secondary SAS ports.
11. - 12. UART Connectors
Primary and secondary UART connectors.
No jumper required. Secondary UART con-
nector is not present on the SAS2-936EL1
backplane.
13. - 14. MDIO Connectors
Primary and secondary MDIO connectors. For
Supermicro internal use only. Secondary MDIO
connector is not present on the SAS2-936EL1
backplane.
15. - 16. Debug Connectors
Primary and secondary debug connectors.
For Supermicro internal use only. Secondary
debug connector is not present on the SAS2-
936EL1 backplane.
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Pin# Definition
2 and 3
Pin# Definition
1
2
3
4
2-2
Backplane
Main Power
4-Pin Connector
1 +12V
Ground
4 +5V
Fan Connectors
Ground
+12V
Tachometer
No connection