2U enclosure chassis
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Power cooling module
shows the power cooling module (PCM) used in controller enclosures and optional expansion enclosures. The
example shows a PCM oriented for use in the left PCM slot of the enclosure rear panel.
Figure 15 Power cooling module (PCM) detail
2U enclosure chassis
The 2U chassis consists of a sheet metal enclosure with an integrated midplane PCB and module runner system.
NOTE:
Supported 2U chassis form factors used for configuring RBODs and EBODs:
•
2U12 chassis configured with 12 LFF disks: see
•
2U24 chassis configured with 24 SFF disks: see
•
2U12 empty chassis with midplane and module runner system: see
•
2U24 empty chassis with midplane: see
•
The chassis has a 19-inch rack mounting that enables it to be installed onto standard 19-inch racks and uses two EIA
units of rack space (3.5") for a 2U enclosure.
•
The midplane PCB can support either 12 or 24 disk drive connections.
•
There are either 12 or 24 drive slots at the front of the enclosure, in horizontal (12) or vertical (24) orientation, as
defined by the enclosure variant. See also
. Each drive slot holds a plug-in drive
carrier module that can hold these drive types, dependent upon the enclosure type:
2U12 enclosure: 12 low profile (1" high) 3.5" LFF disk drives, held horizontally.
2U24 enclosure: 24 low profile (5/8" high) 2.5" LFF disk drives, held vertically.
•
At the rear, the chassis assembly can hold a maximum of two PCMs and two SBB-compliant IOMs.
PCM OK LED
AC Fail LED
Fan Fail LED
DC Fail LED
On/Off switch
Power connect
Release latch