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3.4.1 Mounting the SPARC M12-2S in a Rack


3.4.1 Mounting the SPARC M12-2S in a Rack
  1. Confirm that the rack mount kit supplied with the SPARC M12-2S is complete.
Figure 3-25  Rack Mount Kit
Figure 3-25  Rack Mount Kit
Number in Figure Name Quantity Remarks
1 Rail 2 Bilaterally symmetrical shape
2 Cable support 1  
3 M6 screw 10  
4 Cage nut 10  
  1. Confirm that the rack is secured in place to prevent the rack from toppling over.
  2. Confirm the SPARC M12-2S mounting location in the rack. If necessary, mark the location on the supporting columns.
    The mounting locations have been predetermined for the building block configurations. See Figure 2-2 in "2.4.1  Mounting Conditions for General Racks."
  3. Step 4 differs depending on the shape of the supporting column holes of the rack. Perform the work appropriate to the shape of the supporting column holes of the rack.
  1. For racks with supporting columns having square holes
  1. Attach cage nuts to the left and right supporting columns of the rack.
    - Attachment locations in the front supporting columns: (From the bottom) 1U center, 2U bottom, and 3U top

    - Attachment locations in the rear supporting columns: (From the bottom) 1U center and 2U center
Figure 3-26  Cage Nut Attachment Locations in the Supporting Columns of the Rack
Figure 3-26  Cage Nut Attachment Locations in the Supporting Columns of the Rack
  1. a. Attach cage nuts from the inside of the rack.
    Orient the hooks of the cage nut vertically.
    Hook the hook at one end of a cage nut into a cage nut attachment hole of the rack.
    Figure 3-27 shows a cage nut hooked on the lower part of a hole.
Figure 3-27  Orientation of the Cage Nut Lips
Figure 3-27  Orientation of the Cage Nut Lips
  1. b. From the front, insert the hook tip of the supplied cage nut attachment tool through the cage nut attachment hole, and engage it with the other lip of the cage nut.
Figure 3-28  Using the Cage Nut Attachment Tool
Figure 3-28  Using the Cage Nut Attachment Tool
  1. c. Pull the tool forward to attach the cage nut.
    Push in direction A while simultaneously pulling in direction B as shown in Figure 3-29.
Figure 3-29  Attaching a Cage Nut
Figure 3-29  Attaching a Cage Nut
  1. For supporting columns with M6 screw holes
  1. Remove the pins at the front and rear of the rail.
    a. Remove the screw (A in Figure 3-30) securing the rail pin.

    b. Remove the pin (B in Figure 3-30).

    c. Remove pins from the left and right rails in the same manner.

    d. Store the removed pins and screws (total for each rail: 8) for future use when the SPARC M12-2S is moved.
Figure 3-30  Removing a Rail Pin
Figure 3-30  Removing a Rail Pin
  1. Loosen the two screws attached to the side of rail (A in Figure 3-31) and confirm that the brackets at the front and rear can slide.
Note - Do not remove the screws.
Figure 3-31  Orientation for Attaching the Rails
Figure 3-31  Orientation for Attaching the Rails
  1. Attach the rail to the rack.
    Arrange it so that the two loosened screws (A in Figure 3-31) are situated at the back and the shelf (B in Figure 3-31) is on the bottom.
    a. From the front of the rack, insert the rail protrusions into 2U top and 1U top in the front supporting column of the rack.

    b. Pull out the rail to as far as the depth of the rack.

    c. Insert the rail protrusions into 2U top and 1U bottom in the rear supporting column of the rack.

    d. Secure the rail with one M6 screw to the front supporting column of the rack. The fixing point is 2U bottom.

    e. Attach the other rail in the same manner.
Note - After loosening the screws, hold the rail level with both hands. If the rail tilts, it may stretch.
Figure 3-32  Attaching the Rails: Locations of Protrusions
Figure 3-32  Attaching the Rails: Locations of Protrusions
Figure 3-33  Attaching the Rails: Fixing Point of the Screw
Figure 3-33  Attaching the Rails: Fixing Point of the Screw
  1. Attach the cable support fixing brackets to the rear supporting columns of the rack.
    a. Loosen the four screws (C in Figure 3-34) from the inside of the cable support.


Figure 3-34  Removing the Cable Support Fixing Brackets (1)
Figure 3-34  Removing the Cable Support Fixing Brackets (1)
  1. b. Slide the cable support fixing brackets (D in Figure 3-35) to remove them.
Figure 3-35  Removing the Cable Support Fixing Brackets (2)
Figure 3-35  Removing the Cable Support Fixing Brackets (2)
  1. c. From the rear of the rack, secure the rails and cable support fixing brackets (D) with two M6 screws to the rear supporting columns of the rack.
    The fixing points are 1U center and 2U center.
Figure 3-36  Attaching the Cable Support Brackets
Figure 3-36  Attaching the Cable Support Brackets
Figure 3-37  Securing a Cable Support Fixing Bracket and Rail
Figure 3-37  Securing a Cable Support Fixing Bracket and Rail
  1. d. After attaching the cable support fixing brackets, confirm that the rack door can close.
Note - If the door cannot close because a cable support fixing bracket or the cable support protrudes from the rear of the rack, do not attach the cable support bracket. However, secure the rail to the rack with two M6 screws.
  1. Secure the rail sides by tightening the two M4 screws loosened in step 5 (A in Figure 3-38).
Figure 3-38  Securing the Sides of Rails With Screws
Figure 3-38  Securing the Sides of Rails With Screws
  1. Mount the SPARC M12-2S in the rack.
    Mount the SPARC M12-2S from the front of the rack.
Caution - The SPARC M12-2S weighs 60 kg. Mount the chassis in the rack with four or more people working together. Alternatively, use a lifter such as a hydraulic or mechanical jack.
  1. a. When using a lifter, secure it horizontally.

    b. Lift the chassis to the mounting location with the lifter or manually.

    c. Put the rear part of the chassis on the flanges of the rails.

    d. Slide the chassis into the rack. At this time, store the handle on the side of the chassis.

    e. Insert the chassis all the way to store it inside the rack.
Figure 3-39  Mounting in the Rack
Figure 3-39  Mounting in the Rack
  1. Secure the SPARC M12-2S to the rack.
    a. Push out the left and right slide locks on the front cover (A in Figure 3-39) to release the locks, and remove the front cover.

    b. Tighten the four M6 screws at four locations on the front of the chassis (A in Figure 3-40) to secure it to the rack.

    c. Insert the left and right hooks on the inside of the bottom of the front cover into the grooves at the bottom front of the chassis to attach the front cover.
Note - A label with the serial number of the SPARC M12-2S is affixed to the front cover. Be sure to attach the front cover to the corresponding chassis.
Figure 3-40  Securing the SPARC M12-2S
Figure 3-40  Securing the SPARC M12-2S
  1. Attach the cable support.
    a. Tilt the cable support to align the circular holes at the rear of the groove with the two screws of a cable support fixing bracket (D in Figure 3-41), and attach it. Level the cable support. Then, align the circular holes on the other side with the two screws, and attach it.


Figure 3-41  Attaching the Cable Support (1)
Figure 3-41  Attaching the Cable Support (1)
  1. b. Slide the cable support all the way in, and tighten the four screws (C in Figure 3-42).
Figure 3-42  Attaching the Cable Support (2)
Figure 3-42  Attaching the Cable Support (2)
Note - If the dimension between the front and rear columns of the rack is less than 740 mm, secure the cable support without sliding it all the way in. The fixing location varies depending on the dimension between the front and rear columns of the rack. Based on Figure 3-43, align the scale marks (E in Figure 3-43) (spacing: 10 mm) on the cable support with the screws (F in Figure 3-43) of the fixing brackets to secure the cable support.
Figure 3-43  Attaching the Cable Support (3)
Figure 3-43  Attaching the Cable Support (3)
Table 3-9  Dimensions Between the Front and Rear Columns and Scale Positions
Dimension Between Front and Rear Columns (mm) Scale Position
740 1st
730 2nd
720 3rd
710 4th
700 5th
690 6th
680 7th
670 8th
660 9th
650 10th
Note - If you have difficulty laying a thick cable into the cable support, move the cable support forward to a fixing point that makes the work easier.
  1. c. Close the rear door of the rack, and confirm that the cable support does not interfere. If the cable support interferes with the rear door, remove the cable support. Even if you remove the cable support, leave the rails secured to the rack with the two M6 screws.
  1. Detach the hook-and-loop fastener strips on the cable support.
    The detached hook-and-loop fastener strips are the four (A in Figure 3-44) on the right side as viewed from the rear of the chassis.
Figure 3-44  Detaching the Hook-and-Loop Fastener Strips (SPARC M12-2S)
Figure 3-44  Detaching the Hook-and-Loop Fastener Strips (SPARC M12-2S)
Figure 3-45  SPARC M12-2S Mounting Completed (Front)
Figure 3-45  SPARC M12-2S Mounting Completed (Front)
Figure 3-46  SPARC M12-2S Mounting Completed (Rear)
Figure 3-46  SPARC M12-2S Mounting Completed (Rear)