Installing The Mounting Hardware; Installing The M320 Mounting Hardware For A Four-Post Rack Or Cabinet; Installing Cage Nuts (If Needed) For M320 Four-Post Racks Or Cabinets; Cabinets - Juniper M320 Hardware Manual

CHAPTER 16

Installing the Mounting Hardware

Installing the M320 Mounting Hardware for a Four-Post Rack or Cabinet

Installing Cage Nuts (If Needed) for M320 Four-Post Racks or Cabinets

Copyright © 2015, Juniper Networks, Inc.
Installing the M320 Mounting Hardware for a Four-Post Rack or Cabinet on page 127
Installing the M320 Mounting Hardware for Open-Frame Racks on page 130
To prepare to install the M320 router in a four-post rack or cabinet, you install the large
shelf and the spacer bars on the front rail, and the small mounting shelf on the rear rail
(see Figure 33 on page 129. You also remove the adjustable center-mounting brackets
from the chassis.
Installing Cage Nuts (If Needed) for M320 Four-Post Racks or Cabinets on page 127
1.
2. Installing the Large Mounting Shelf for M320 Four-Post Racks or Cabinets on page 128
Installing the Small Mounting Shelf for M320 Four-Post Racks or Cabinets on page 129
3.
Removing the Adjustable Center-Mounting Brackets for M320 Four-Post Racks or
4.
Cabinets on page 129
For racks without threaded holes, you must install cage nuts in the locations specified in
Table 73 on page 127. To install the cage nuts:
On the front rack rails, install cage nuts in the holes specified for the large shelf and
1.
the spacer bars.
On the rear rack rails, install cage nuts in the holes specified for the small shelf.
2.
Table 73 on page 127 specifies the holes in which you insert mounting screws (an
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. The bottom of all mounting shelves
is at 0.04 in. (0.02 U) above a U division.

Table 73: Four-Post or Cabinet Rack Mounting Hole Locations

Hole Distance Above U Division
51 29.51 in. (74.9 cm)
Large
Shelf
16.86 U
X
Spacer Small
Bars Shelf
X
127