Installing the cable management arm assembly

The enclosure uses a cable management arm (CMA) assembly to route and secure power and data cables.

About this task

• The CMA assembly can be installed on either side of the node.
• The inner rail of the CMA assembly must be on top to work correctly.

Figure 1 shows the parts that are used to install the CMA assembly.

•  1  CMA inner connector
•  2  CMA connector base on inner member
•  3  CMA outer connector
•  4  CMA connector base on outer member
•  5  CMA connector beside the center body
•  6  CMA connector base on outer member

CAUTION:

The loop strap must be tied to the CMA crossbar for transportation. Remove the loop strap after the system arrives at its final destination.

To install the CMA assembly, complete the following steps.

1. Optional: You might need to reverse the left-right orientation of the CMA to accommodate the routing of cables that lead to the node. To reverse the orientation of the arm, complete the following steps:
   1. Press the button marked "PUSH" in Figure 2.

      

   2. Turn the connector 180 degrees.
2. Install the CMA inner connector ( 1 ) onto the CMA connector base on the inner member ( 2 ) as in the following figure.

   

3. Install the CMA outer connector ( 3 ) onto the CMA connector base on the outer member ( 4 ), as shown in the following figure.

   

4. Install the opposite CMA connector ( 5 ) to the opposite outer CMA connector base ( 6 ) as shown in the following figure.

   

5. Connect and route the cables.
   1. Connect the power cords and other cables to the rear of the node.
   2. Route the cables and power cords on the CMA and secure them with cable ties or hook-and-loop fasteners.
   Note:

   • The location of the cable straps can vary in different systems.
   • Use the cable straps that are provided on the rear of the system to retain the cables and prevent them from sagging.
   • Allow slack in all cables to avoid tension in the cables as the CMA moves.