Dell PowerEdge Rack Enclosure 4020S - Manual (Page 6)

Cable Routing Procedures for Dell PowerEdge R620 Systems
6
1.3.2. Left-side mounting instructions
1. Install the CMA on the rear left side of the rails by attaching both CMA housings to the attachment
brackets on the rails.
2. Route the cables through the CMA while avoiding twisting the cables. Use the hook-and-loop straps
on the CMA to secure the cables.
3. If the cable bundle includes a keyboard, video, and mouse system interface pod (KVM SIP), it can
be placed inside the CMA basket for light to medium cable loads. If the KVM SIP will not fit inside
the basket with the other cables, attach it to the exterior of the front basket as shown in Figure 4.
Routing the cables through the CMA Figure 4.
4. Once you have routed all of the cables through the CMA, dress the cable slack between the back of
the system and the entrance of the CMA using the tie wraps provided in the CMA kit.
5. Clip off the excess length of material from the tie wraps. Make sure that the heads of the tie wraps
are positioned so as to avoid interference with adjacent systems. Return the CMA to the closed
(retracted) position.
6. Extend the system out of the rack to verify that there is sufficient slack in the cables on both ends
of the CMA. This step is particularly important for the 10 HDD version of the R620 due to the
fact that the CMA and tray translate forward approximately 50 mm before the CMA begins
extending.
See Figure 5 for an example of a completed left-side mounted CMA installation.
NOTE: Do not store excess cable
slack inside the CMA. The cables
may protrude through the CMA, thus
causing binding and potentially
damaging the cables.
Cables entering the CMA should have a
small amount of slack to avoid cable
strain when the CMA is extended.
KVM SIP can be attached to the
outside of the CMA basket if
necessary using the hook-and-loop
straps provided on the CMA.