Cma Specifications; Cma Layout - Western Digital Ultrastar Data60 User Manual

User Guide
The cable management assembly (CMA) provides a number of benefits to protect and manage 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.
The design of 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.
3.7.1 CMA Specifications
Specification
Number per Enclosure
Maximum Number of Cables
3.7.2 CMA Layout
Extension Range
Part Number
Hot Swappable?
FRU or CRU?
Weight
3. Component Overviews
Value
0 - 36 in.
1 assembly (2 arms)
1EX0437
No
12 SAS Cables
2 Power Cords
2 Ethernet
CRU
1.54 kg, 0.77/arm / 3.4 lbs., 1.7/arm
3.7 CMA Description
52