How to Attach the Cable Management Arm (CMA)

Before You Begin

The CMA comes with the 4U Express Rail Rackmounting Kit card that contains illustrations that you should refer to during this procedure.

This procedure assumes that you have installed the server into the rack. See How to Insert the Server Into the Rack.

1. If necessary, slide the server back until it is fully inside the rack.
2. Unpack the CMA parts and take them to the rear of the equipment rack.

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

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   Figure Legend 1 Cable Management Arm (CMA) 2 Support latch with CMA extension installed. Note that CMA extension is a detachable piece. 3 Power supply access tab (press and rotate CMA for access to power supplies.) 4 Hook and loop straps 5 Outer latch with green insert 6 Inner latch

3. Attach the CMA extension to the left slide rail.

   Push on the extension's metal clip (labeled PUSH) as you slide the extension into the left slide rail.

   
   
4. Insert the right inner latch (numbered 6 in the CMA illustration) into the right rear slide rail. The inner latch does not have the green insert.

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   Note - Insert the inner latch into the mounting bracket part of the slide rail, which extends about 5 inches (approximately 12.5 centimeters) from the server itself.

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5. Insert the right outer latch (numbered 5 in the CMA illustration) into the middle part of the slide rail. The right outer latch has the green insert.
6. Attach the light gray support latch (numbered 2 in the CMA illustration) into the CMA extension on the left slide rail.
7. Install cables to your server, using the hook and loop straps, and route the cables through the CMA.

Next Steps

How to Verify Cable Management Arm (CMA) Operation