Installing The Mounting Hardware; Installing The T320 Mounting Hardware For An Open-Frame Rack; Table 60: T320 Open-Frame Rack Mounting Hole Locations - Juniper Core Router T Series Hardware Manual

CHAPTER 15

Installing the Mounting Hardware

Installing the T320 Mounting Hardware for an Open-Frame Rack

Copyright © 2018, Juniper Networks, Inc.
Installing the T320 Mounting Hardware for an Open-Frame Rack on page 115
Installing the T320 Mounting Hardware for a Four-Post Rack or Cabinet on page 117
To prepare to mount the T320 Core Router into an open-frame rack, install the large
mounting shelf on the rack. Install cage nuts, if needed. The small mounting shelf and
the spacer bars are not needed.
For open-frame racks, center-mounting the chassis is preferable to front-mounting
because the more even distribution of weight provides greater stability. You use the
center-mounting brackets to center-mount the chassis in an open-frame rack; you use
the front-mounting flanges to front-mount the chassis in an open-frame rack.
For an open-frame rack, Table 60 on page 115
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 0.0015 in. (0.01 U) above a U division.

Table 60: T320 Open-Frame Rack Mounting Hole Locations

Hole Distance Above U Division
39 22.51 in. (57.2 cm)
30 17.26 in. (43.8 cm)
21 12.01 in. (30.5 cm)
12 6.76 in. (17.1 cm)
3 1.51 in. (3.8 cm)
To install the large mounting shelf (see
Install cage nuts, if needed, in the mounting holes specified in
1.
On the front side of the rack rails, install cage nuts for the chassis.
2.
specifies the holes in which you insert
Large Shelf
12.86 U –
9.86 U X
6.86 U X
3.86 U X
0.86 U X
Figure 37 on page 117):
Chassis
X
X
X
X
X
Table 60 on page 115:
115