Table 2: Open-Frame Rack Mounting Hole Locations (continued)
Large ShelfDistance Above U DivisionHole
x10.14 U17.75 in. (45.1 cm)31
•
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 Table 2 on page 10.
Installing the Large Mounting Shelf
1. On the rear of each rack rail, partially insert a mounting screw in the lowest hole
specified in Table 2 on page 10.
2. Install the shelf on the rack. Rest the bottom slot in each flange on one of the installed
mounting screws.
3. Partially insert screws into the open holes in the flanges of the large shelf.
4. Tighten all the screws completely.
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:
1. Remove the spacer bars by loosening the screws that fasten the spacer bars to the
front-mounting flanges.
2. Remove the center-mounting brackets from the chassis by loosening the screws
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.
11Copyright © 2015, Juniper Networks, Inc.
Installing Cage Nuts if Needed
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