42 Options Guide BX920 S2
Mezzanine cards
– If an 8 Gb Fibre Channel mezzanine card is installed in slot 2, at least one 
Fibre Channel connection blade must be installed in fabric 3.
– If a 40 Gb Infiniband mezzanine card is installed in slot 2, Infiniband 
connection blades should be installed in fabrics 3 and 4.
I In this case the dual ports of the mezzanine card will be available and 
one of two ports will be connected to connection blade in fabric 3, the 
other one will be connected to connection blade in fabric 4.
System unit
Connection blade slots Server Blade 
Mezzanine 
card
Fabric 1
CB1:
1 Gb Ethernet 
or
10 Gb Ethernet
CB2:
1 Gb Ethernet 
or
10 Gb Ethernet 
Onboard 
LAN controller
--- 
Fabric 2
CB3: CB4:
Mezzanine 
card 1
Fabric 3
CB5:
Fibre Channel
CB6:
Fibre Channel
Mezzanine 
card 2
FC 8 Gb 2 port
Fabric 4
CB7: CB8:
System unit
Connection blade slots Server Blade 
Mezzanine 
card
Fabric 1
CB1:
1 Gb Ethernet 
or
10 Gb Ethernet
CB2:
1 Gb Ethernet 
or
10 Gb Ethernet
Onboard 
LAN controller
--- 
Fabric 2
CB3: CB4:
Mezzanine 
card 1
Fabric 3 Infiniband (CB5/6)
Mezzanine 
card 2
IB 40 Gb 2 port
Fabric 4
Infiniband (CB7/8)