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Data Domain DD6300 System Installation and Storage Expansion Guide

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Installing the 1U cable management tray

The underneath configuration uses the 1U space beneath the shelf. Install the cable management tray before you install the main chassis.

Prerequisites

  • Ensure that you have determined the correct cable lengths, cable loops, and pigtail lengths. Consult the application guide for the product you are installing to help determine cable lengths.
  • Ensure that the blue tab on the shelf rail (directly above where the 1U Cable Management Tray rails will be installed) is pressed in.
    Figure 1. Blue tab on rail must be pushed in

About this task

NOTE This procedure describes the installation of the 1U cable management tray into a standard Dell EMC rack. For third-party racks, use the additional hardware that comes with the 1U cable management arm to install the rails as necessary.

The rails come preassembled with adapters that fit into standard round mounting holes. If the rack has a different configuration, use the adapters in the hardware kit that come with the tray to mount the rails.

Steps

  1. Identify the left and right rails. Orient the rails so that the UP arrow is pointed up and the end of the rails that are labeled FRONT is at the front of the rack.
    Figure 2. Installing and securing the rails—front
    Figure 3. Installing and securing the rails—rear
  2. Align the flanges on the inside the mounting holes of the rack. Adjust the rails to the fit the rack you are using. Insert the two adapters on the rail into the mounting holes, in both the front and the rear of the rails. Secure the rails to the rack using two knurled screws from the hardware package, one in the front of the rail, and one in the rear of the rail. Torque the screws to 12-16 inch-pounds. Repeat for the other rail.
    Figure 4. Installing tray
  3. Orient the tray so that the UP arrow is pointed up and the end of the tray that is labeled FRONT is to the front of the rack. Slide the tray into the rails until it locks into place with an audible click. To release the tray, press the spring clips up and pull the tray towards the front of the rack.
    Figure 5. Spring clips—push up to release tray
    Figure 6. Opening the cable chain lids
  4. Unclip and open all lids on the cable chains.
    Figure 7. Cable positioning in cable chains
  5. Refer to the application guide for the shelf you are installing. Using the 1-inch graduations on the back edge of the tray, route the cables through the cable chains to their suggested lengths, keeping in mind the correct pig-tail lengths. The two outside cable runs connect to the rack, while the two inside cable runs connect to the shelf. Once the cables are installed, close the lids, making sure that they are snapped shut.
    Figure 8. 1-Inch graduation label
  6. Align the lids of the cable chains so the lids are facing up and the hinges are all facing each other. Arrange the two cable chains so that they form a "U" shape.
    Figure 9. Attaching cable chains to tray
  7. Attach the Cable Chains to the tray, by attaching the clips onto the tabs on the rear of the tray.
    Figure 10. Installing the chassis bracket into the shelf
  8. Snap the chassis bracket clips into the brackets on the side of the chassis.
    Figure 11. Installing the chassis bracket
  9. Place the chassis bracket over the center rail of the cable tray. Clip the free end of the cable chains to the center flange on the chassis bracket.
    Figure 12. Installing the bezel
  10. Place the bezel over the front of the tray by pressing the release buttons on the bezel and placing it over the retaining slots on the tray. Release the buttons and the tabs will mate with the slots.
  11. Refer to the application guide and connect the cables as required. Dress the cable runs with proper cable strain reliefs when routing to the rack.

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