Technical data

Major Components
31
Figure 2-9 System Router Boards
Null Router Board
The Null router board is used in deskside systems with only two Node boards. The Null
router provides a low-cost method to connect two Node boards. The Null Router board
cannot be used for CrayLink Interconnect linking, and it does not have any external
router connectors.
Three external
Router ports for
interconnection
fabric
One external
port that
connects
only to companion
rack Router
board port
Null Router Board Star Router Board Rack Router Board