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Installing the T1600 Mounting Hardware for an Open-Frame Rack

 

In an open-frame rack, center-mounting is generally preferable to front-mounting because the more even distribution of weight provides greater stability. If you center-mount the chassis, you use the center-mounting brackets attached to the chassis. If you front-mount the chassis, you use the front-mounting flanges, and must remove the center-mounting brackets.

  1. Installing the Cage Nuts, If Needed

  2. Installing the Large Mounting Shelf

  3. Removing the Center-Mounting Brackets from the Chassis

  4. Removing the Spacer Bars

Installing the Cage Nuts, If Needed

Install cage nuts, if needed, in the mounting holes specified in Table 1.

Table 1 specifies the mounting holes in which you insert the mounting screws (an X indicates a mounting hole location), and cage nuts if needed. The hole distances are relative to one of the standard “U” divisions on the rack. For reference, the bottom of all mounting shelves is at 0.04 in. (0.02 U) above a “U” division.

Table 1: Open-Frame Rack Mounting Hole Locations

Hole

Distance Above “U” Division

Large Shelf

59

34.13 in. (86.7 cm)

19.50 U

X

53

30.63 in. (77.8 cm)

17.50 U

X

50

28.88 in. (73.3 cm)

16.50 U

X

44

25.38 in. (64.5 cm)

14.50 U

X

41

23.63 in. (60.0 cm)

13.50 U

X

35

20.13 in. (51.1 cm)

11.50 U

X

32

18.38 in. (46.7 cm)

10.50 U

X

31

17.75 in. (45.1 cm)

10.14 U

X

Installing the Large Mounting Shelf

To install the large mounting shelf (see Figure 1) in an open-frame rack:

  1. On the rear of each rack rail, partially insert a mounting screw into the lowest hole specified in Table 1 for the large shelf.
  2. Install the large shelf on the rack. Rest the bottom slot of each flange on a mounting screw.
  3. Partially insert screws into the open holes in the flanges of the large shelf.
  4. Tighten all the screws completely.
Figure 1: Installing the Mounting Hardware for an Open-Frame Rack
Installing the
Mounting Hardware for an Open-Frame Rack

Removing the Center-Mounting Brackets from the Chassis

Before front-mounting the router in an open-frame rack, you must remove the center-mounting brackets from the chassis.

To remove the center-mounting brackets (see Figure 2):

  1. Loosen the screws at the top and bottom of each bracket.
  2. Remove each bracket.
Figure 2: Removing the Center-Mounting Bracket
Removing
the Center-Mounting Bracket

Removing the Spacer Bars

The router is shipped with each spacer bar attached to the rear of each front-mounting flange. If you are installing the chassis in an open-frame rack, removing the spacer bars is optional.

To remove the spacer bars:

  1. Remove the screws that fasten the spacer bar to the front-mounting flange.
  2. Remove the spacer bars.