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Marking the location without a rack-mounting template

You might need to mark the location without a template. Use the procedure in this section to perform this task.

To mark the installation location and install the nut clips into a rack without using the rack-mounting template, complete the following steps:

  1. Determine where in the rack to place the drawer and make note of the location numbers.

    This drawer is four Electronic Industries Alliance (EIA) units high. An EIA unit is 1.75 in. (44.45 mm) in height. The rack contains three mounting holes for each EIA unit of height. This drawer therefore is 7 in. (177.8 mm) high and covers 12 mounting holes in the rack.

    The following illustration shows a 1-EIA unit and a 4-EIA unit. Depending on the rack manufacturer, the EIA units may be separated either by color or by a line. The holes along the EIA strip are not evenly spaced. If your rack has no color or line separation between EIAs, assume that each EIA section begins where the hole spacing is closest together.

    Figure 1. EIA units with the expandable rails for the 5790 drawer
    EIA units expandable for 5790
     A  Placement mark
     B  Nut clip
    Figure 2. EIA units with the expandable rails for the 5796 drawer
    EIA units expandable for 5796
     A  Placement mark
     B  Nut clip
  2. Facing the front of the rack and working from the right side, locate the bottom EIA unit that your drawer will be using and make a note of the EIA location. Place a self-adhesive dot (A) next to the top hole of this EIA unit and wrap the dot around the rail, or mark the rack where it can be seen from the rear of the rack.
    Note: The self-adhesive dots (A) are used to identify the EIA unit holes located on the rack. Alignment pins located on the rail alignment brackets are placed through the identified holes when mounting the rails. If you no longer have any of the dots, use some other form of marking tool to aid you in identifying the hole locations. (for example, marker or pencil).
  3. Begin with the hole identified by the dot, or mark, placed in substep 2; count up two holes and place the second dot, or mark the rack where it can be seen from the rear, next to the hole.
  4. Begin with the hole identified in substep 3, count up six holes and place a nut clip. The nut clip (B) aids in securing your drawer to the rack.
  5. Begin with the hole identified in substep 3, count up two holes and place a nut clip. The nut clip (B) aids in securing your drawer to the rack.
  6. Repeat steps 2 through 5 on the left side of the rack.
  7. Facing the back of the rack and working from the right side, locate the bottom EIA unit that your drawer will be using. Place a supplied self-adhesive dot (B), or make a mark next to the top hole of this EIA unit.
  8. Begin with the hole identified by the dot, or mark, placed in substep 7, count up two holes and place the second dot, or mark, next to the hole.
  9. For the 5790 only, begin with the top dot, count up four holes and place a nut clip (B) in that location.
  10. For the 5790 only, count up two more holes and place a second nut clip (B) in that location.

Next topic: Installing the standard (fixed length) rails or Installing the expandable rails and extension bracket into the rack.


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Last updated: Fri, Oct 30, 2009