User`s manual
E-5
Appendix E: SC847J Chassis Internals and Externals
Figure E-5: Up-Close of the Special Connector Cable Board
This special connector combines four SFF 8087 cables into one simple connector
board which is installed on the side of the chassis to be connected to the external
systems.
In the illustration above, the SFF 8087 end of one of the cables and the 4x SFF
8088 are shown. The SFF 8087 end connects to the backplanes that are inside
the chassis, as well as the 4x SFF 8088 which would be mounted on the side of
the chassis and is to be connected to either a downstream JBOD or an upstream
HBA/RAID.
SC847J Chassis Internal Connectivity
Each backplane is connected separately to the outside world. To congure this, you
need to connect the J0 connector of both BPN-SAS2-847EL1 and BPN-SAS2-846-
EL1 backplanes to cables in section 1.4. The other two cables are connected to J1
of BPN-SAS2-847EL1 and J2 of BPN-SAS2-847EL1 to make the chassis cascade
ready for future. The other side of the cables is a simple cable card which is then
mounted on the side of the JBOD chassis to the outside world. You are now ready
to be cascaded from a host or any external host/server system (i.e. head unit) or
cascade to another downstream JBOD. See more about external host/server con-
nectivity in section 3.
SMCI confidential document 5 Whitepaper
It combines four SFF 8087 cables into one simple connector board which is installed on
the side of the chassis to be connected to the outside world. Below is a close up of how
the connectors look:
In the above picture, you can see the SFF 8087 end of one of the cables which connect to
the backplanes that are inside the chassis as well as the 4 X SFF 8088 which would be
mounted on the side of the chassis to be connected to either downstream JBOD or
upstream HBA/RAID.
Section 2 – 847 JBOD chassis internal connectivity
Each backplane is connected separately to the outside world. To configure this, you need
to connect the J0 connector of both BPN-SAS2-847EL1 and BPN-SAS2-846EL1
backplanes to cables in section 1.4. The other two cables are connected to J1 of BPN-
SAS2-847EL1 and J2 of BPN-SAS2-847EL1 to make the chassis cascade ready for
future. The other side of the cables is a simple cable card which is then mounted on the
side of the JBOD chassis to the outside world. You are now ready to be cascaded from a
host or any external host/server system (i.e. head unit) or cascade to another downstream
JBOD. See more about external host/server connectivity in section 3.
Special connector cable board to
use w/ SC847E16 – front view
Figure 5