Juniper QFX3000-G QFabric, Руководство по развертыванию, Страница: 187 / 652

Figure 23: Installing Four-Post Mounting Shelf and Rear Support Bracket
for QFX3008-I Interconnect Device Four-Post Rack or Cabinet Mounting
g050167
Rear support bracket
Four-post mounting shelf
fits over the rear support
bracket.
Four-post mounting shelf
For a four-post rack or cabinet, Table 59 on page 161 specifies the holes in which you
insert 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.
Table 59: Four-Post Mounting Shelf and Rear Support Bracket Hole Locations
Rear Support
Bracket Four-Post
Mounting Shelf
Distance Above U Division Hole
X 1.86 U 3.25 in. (8.3 cm) 6
X
1.5 U 2.63 in. (6.7 cm) 5
X
1.14 U 2 in. (5.1 cm) 4
X X 0.86 U 1.5 in. (3.8 cm) 3
X X
0.5 U 0.88 in. (2.2 cm) 2
X X 0.14 U 0.25 in. (0.6 cm) 1
• Installing Cage Nuts for the Four-Post Mounting Shelf and Support Bracket for
QFX3008-I Interconnect Device Four-Post Rack or Cabinet Mounting on page 162
•
Installing the Rear Support Bracket for QFX3008-I Interconnect Device Four-Post Rack
or Cabinet Mounting on page 162
• Installing the Four-Post Mounting Shelf for QFX3008-I Interconnect Device Four-Post
Rack or Cabinet Mounting on page 162
161 Copyright © 2015, Juniper Networks, Inc.
Chapter 10: Installing a QFX3008-I Interconnect Device