IBM TotalStorage 2109 M12, Installation And Service Manual

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7. Attach the two L-shaped upper mount brackets (items 3b and 4b) to the cabinet
rails. See Figure 26 for orientation. Use two of the 1/4–20 x 1/2 in. Phillips
panhead screws with lock washers per bracket. Tighten the screws.
Note: If you are installing an M12 into the bottom of the rack, go to step 7a on
page 48 for the location of the bracket. If you are installing an M12 into
the top of the rack, go to step 7b on page 48 for the location of the
bracket.
SJ000665
Flat Upper Rack
Mount Bracket (2x)
(Items 3a and 4a)
Disconnected L-shaped
Bracket (2x)
(Items 3b and 4b)
10-32 Screws (8x)
(Item 5)
Figure 25. Attaching the right and left flat upper mount brackets to the chassis
Hole 37
Hole 40
Hole 2
SJ000666
Figure 26. Attaching the L-shaped upper mount brackets to the rails
Chapter 5. Installing and removing Model M12 switches
47