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Rear view of the chassis

Fan modules, I/O modules, power supplies, fan logic modules, and the Lenovo Flex System Chassis Management Modules are in the rear of the Flex System Carrier-Grade chassis.

Note
Each bay in the chassis must contain either a device or a filler.

The following illustration shows the rear view of the chassis.


Rear view of the chassis
  • Flex System Chassis Management Module
    The Lenovo Flex System Chassis Management Module (Chassis Management Module or CMM) is a hot-swap module that configures and manages all installed chassis components. The chassis comes with one Chassis Management Module in the CMM bays.
  • I/O modules
    You can install up to four I/O modules in the Flex System Carrier-Grade chassis, including Ethernet switch modules, Fibre Channel switch modules, Infiniband, and pass-thru modules (optical and copper).
  • Power supplies
    The Flex System Carrier-Grade chassis supports up to six autoranging power supplies.
  • Fan modules
    The Flex System Carrier-Grade chassis supports up to ten fan modules (two 40 mm fan modules and eight 80 mm fan modules). It comes with a minimum of six hot-swap fan modules installed (four 80 mm fan modules and two 40 mm fan modules).
  • Fan logic modules
    The Flex System Carrier-Grade chassis comes with two installed hot-swap fan logic modules.