Installing Cage Nuts If Needed; Installing The Large Mounting Shelf; Removing The Spacer Bars And Center-Mounting Brackets - Juniper T640 Quick Start Manual

Copyright © 2015, Juniper Networks, Inc.
Table 2: Open-Frame Rack Mounting Hole Locations (continued)
Hole Distance Above U Division
31 17.75 in. (45.1 cm)
Installing Cage Nuts if Needed on page 11
Installing the Large Mounting Shelf on page 11
Removing the Spacer Bars and Center-Mounting Brackets on page 11

Installing Cage Nuts if Needed

Install cage nuts, if needed. On the back of the rack rails, install cage nuts for the large
shelf in the mounting holes specified in

Installing the Large Mounting Shelf

On the rear of each rack rail, partially insert a mounting screw in the lowest hole
1.
specified in Table 2 on page
Install the shelf on the rack. Rest the bottom slot in each flange on one of the installed
2.
mounting screws.
Partially insert screws into the open holes in the flanges of the large shelf.
3.
Tighten all the screws completely.
4.

Removing the Spacer Bars and Center-Mounting Brackets

The router is shipped with a spacer bar attached to the back of each front-mounting
flange, and two center-mounting brackets attached to the chassis.
If you plan to front-mount the router in an open-frame rack:
Remove the spacer bars by loosening the screws that fasten the spacer bars to the
1.
front-mounting flanges.
Remove the center-mounting brackets from the chassis by loosening the screws
2.
at the top and bottom of each bracket.
If you plan to center-mount the router in an open-frame rack, leave the center-mounting
brackets attached to the chassis. Optionally, you can remove the spacer bars.
10.14 U
Table 2 on page 10.
10.
Installing Cage Nuts if Needed
Large Shelf
x
11