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### Installing the Cable Management Arm

The cable management arm (CMA) is an optional assembly that you can use to route the server cables in the rack.

# Install Cable Management Arm

Use this procedure to install the optional CMA.

1. Unpack the CMA parts.
2. Take the CMA to the back of the equipment rack and ensure that you have adequate room to work around the back of the server.

   Note - References to “left” or “right” in this procedure assume that you are facing the back of the equipment rack.

3. Remove tape to separate the parts of the CMA.
4. Insert the CMA’s mounting bracket connector into the right slide-rail until the connector locks into place with an audible click (Inserting the CMA Mounting Bracket Into the Back of the Right Slide-Rail).

   Figure 2-9 Inserting the CMA Mounting Bracket Into the Back of the Right Slide-Rail

   Figure Legend

   1 CMA mounting bracket

   2 Right slide-rail

5. Insert the right CMA slide-rail connector into the right slide-rail assembly until the connector locks into place with an audible click (Inserting CMA Slide-Rail Connector Into the Back of the Right Slide-Rail).

   Figure 2-10 Inserting CMA Slide-Rail Connector Into the Back of the Right Slide-Rail

   Figure Legend

   1 CMA slide-rail connector

   2 Right slide-rail

6. Insert the left CMA slide-rail connector into the left slide-rail assembly until the connector locks into place with an audible click (Inserting the CMA Slide-Rail Connector Into the Back of the Left Slide-Rail).

   Figure 2-11 Inserting the CMA Slide-Rail Connector Into the Back of the Left Slide-Rail

   Figure Legend

   1 CMA slide-rail connector

   2 Left slide-rail

7. Install and route cables to your server, as required.

   Note - Instructions for installing the server cables are provided in Back Panel Connectors and Ports.

8. If required, attach the cable hook and loop straps to the CMA, and press them into place to secure the cables (Installing CMA Cable Straps).

   Note - Cable hooks and loop straps are preinstalled on the CMA. Perform the procedure in this step if you need to reinstall cable hooks and straps on the CMA.

   For best results, place three cable straps, evenly spaced, on the rear-facing side of the CMA and three cable straps on the side of the CMA nearest the server.

   Figure 2-12 Installing CMA Cable Straps

   Figure Legend

   1 CMA cable strap

   2 CMA arm

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