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Chapter 2: Voltaire InfiniBand Cabling Tables for One 489184-B21 Interconnect per Enclosure: 3 Enclosures per Cabinet, QDR 2:1 BW (DDR 1:1 BW)
These tables list the Voltaire InfiniBand cabling tables for one 489184-B21 interconnect per enclosure with 3 server blade enclosures per cabinet, QDR 2:1 bandwidth (DDR 1:1 bandwith).
2 Server Blade Enclosures with One 489184-B21 Interconnect Back to Back, QDR 2:1 BW (DDR 1:1 BW) 
4 Server Blade Enclosures Using ISR 4036 Interconnects: 3 Enclosures per Cabinet with One 410398-B21 Interconnect, QDR 2:1 BW ( DDR 1:1 BW)
9 Server Blade Enclosures Using ISR 4036 Interconnects: 3 Enclosures per Cabinet with One 489184-B21 Interconnect,  QDR 2:1 BW (DDR 1:1 BW)
18 Server Blade Enclosures Using ISR 4036 Interconnects: 3 Enclosures per Cabinet with One 489184-B21 Interconnect, QDR 2:1 BW (DDR 1:1 BW)

36 Server Blade Enclosures Using ISR 4036 Interconnects: 3 Enclosures per Cabinet with One 489184-B21 Interconnect, QDR 2:1 BW (DDR 1:1 BW)