RM238 Series 
Backplane ā  70 
 
 
Figure 89 Backplane rear view 
 
 
Table 34 Connector and pin header function description 
The  backplane  includes  one  2  x  4  connector 
supplying  12V  power  to  the  backplane.  Power  is 
routed to the backplane via a power cable harness 
from the power supply. 
The  backplane  includes  eight  OCuLink  connectors 
providing data signals for eight NVMe drives on the 
backplane.  A  cable  can  be  routed  from  matching 
connectors  on  the  server  board  or  add-in  switch 
cards. 
The backplane includes two 4-pin connectors. One is 
used as a management interface to the server board 
and the other is for BP to BP communication.