Cma; Cma Specifications - Western Digital Ultrastar Data60 User Manual

User Guide
2.7 CMA
Figure 28: Ultrastar Data60 CMA
The Ultrastar Data60 CMA is a two-arm design that separates the connections to the two sides of the
enclosure. The lower arm supports the cables that connect to the dual SAS ports and Ethernet on the right
hand side of the unit as viewed from the rear, as well as the lower PSU power cord. The upper arm supports
the left hand ports and the upper PSU power cord. Each arm is attached to the Ultrastar Data60 by one clip
at the elbow and two at the other end. The cables are secured to the arms by plastic clips called baskets
that can be opened at the top to adjust, add, or remove cables. The arms can also be moved into a service
position by unclipping them from the elbow end of the arm and swinging them away from the enclosure
when the enclosure is fully inserted in a rack. This provides access to connections and components at the
rear of the system without having to remove the CMA or disconnect any of the cabling.
2.7.1 CMA Specifications
Specification
Extension Range
Number per Enclosure
Part Number
Hot Swappable?
Maximum Number of Cables
FRU or CRU?
Weight
The cable management assembly (CMA) protects
and manages the cables connected to the PSU
ports, SAS ports, and Ethernet ports. It prevents
damage to the port connectors and the cables
throughout the full travel of the enclosure as it is
pulled out of the rack for servicing. This motion
ensures that the cables contained by the CMA arm
do not snag or get pulled out of the ports as the
enclosure moves.
Value
0 - 36 in.
1 assembly (2 arms)
No
12 SAS Cables
2 Power Cords
2 Ethernet Cables
CRU
1.54 kg (0.77 per arm) / 3.4 lbs. (1.7 per arm)
2. Components

2.7 CMA

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