RM238 Series 
Backplane ā  54 
 
   
Figure 74    Backplane rear view 
 
Table 15    Connector and pin header function description 
The  backplane  includes  two  power  connectors 
supplying  12V  input  to  the  backplane.  Power  is 
routed to the backplane via a power cable harness 
from the power supply. 
The backplane includes two multi-port Mini-SAS HD 
connectors  providing  data  signals  for  twelve 
SATA/SAS drives on the backplane. A cable can be 
routed  from  matching  connectors  on  the  add-in 
SATA/SAS HBA cards. 
The backplane includes one 4-pin connector used as 
a management interface to the server board. 
The backplane includes four fan connectors used to 
control and monitor fan speed. 
Follow below the Dip switch setting table. 
Fan setting for RM23812 active BP.