Juniper T1600 User manual

Installing the T1600 Mounting Hardware for a Four-Post Rack or Cabinet
To prepare to install the router into a four-post rack or cabinet:
■Install cage nuts, if needed.
■Install the large mounting shelf and the spacer bars on the front rack rail.
■Install the small mounting shelf on the rear rack rail.
■Remove the center-mounting brackets from the chassis.
The mounting brackets and flanges have holes for rack-mounting screws, spaced at
5.25 in. (13.34 cm).
Table 1 specifies the holes in which you insert mounting screws (an Xindicates 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 1: Four-Post or Cabinet Rack Mounting Hole Locations
Small
Shelf
Spacer
Bars
Large
ShelfDistance Above “U”DivisionHole
X
19.86 U34.75 in. (88.3 cm)60
X
16.86 U29.51 in. (74.9 cm)51
X
13.86 U24.26 in. (61.6 cm)42
X
10.86 U19.01 in. (48.3 cm)33
X
7.86 U13.76 in. (34.9 cm)24
XX
4.86 U8.51 in. (21.6 cm)15
X
3.86 U6.76 in. (17.1 cm)12
X
2.86 U5.01 in. (12.7 cm)9
XX
1.86 U3.26 in. (8.3 cm)6
X
0.86 U1.51 in. (3.8 cm)3
X
0.50 U0.88 in. (2.2 cm)2
Installing the T1600 Mounting Hardware for a Four-Post Rack or Cabinet ■1

To install the mounting shelves and spacer bars:
1. Install cage nuts, if needed, in the mounting holes specified in Table 1:
■On the front rack rails, install cage nuts in the holes specified for the large
shelf and the spacer bars.
■On the rear rack rails, install cage nuts in the holes specified for the small
shelf.
2. On the front of each front rack rail, partially insert a mounting screw into the
lowest hole specified in Table 1 for the large shelf and the spacer bars.
3. Install the large shelf on the front rack rails. Rest the bottom slot of each flange
on a mounting screw.
4. Partially insert a mounting screw into the top hole in each flange of the large
shelf.
5. Tighten all the screws completely.
6. The router is shipped with each spacer bar attached to the rear of each
front-mounting flange. Remove each spacer bar by removing the screws that
fasten the spacer bar to the front-mounting flange.
7. Place one of the spacer bars over a flange of the large shelf. Position the notch
in the rear of the spacer bar so the upper part of the bar is flush with the rack
rail and the lower part is flush with the flange of the shelf (see Figure 1).
8. Insert a mounting screw into each of the nonthreaded holes in the recesses of
the spacer bar to secure the spacer bar. Each hole should have a cage nut behind
it.
9. Repeat Steps 7 and 8 for the other spacer bar.
10. Tighten all the screws completely.
11. On the back of each rear rack rail, partially insert a mounting screw into the
lowest hole specified in Table 1 for the small shelf.
12. Install the small shelf on the back rack rails. Rest the bottom slot of each flange
on a mounting screw. The small shelf installs on the back of the rear rails,
extending toward the center of the rack. The bottom of the small shelf on the
rear rack rails must align with the bottom of the large shelf on the front rack
rails.
13. Partially insert screws into the open holes in the flanges of the small shelf.
14. Tighten all the screws completely.
15. Remove the mounting brackets from the chassis by loosening the screws at the
top and bottom of each bracket.
2■Installing the T1600 Mounting Hardware for a Four-Post Rack or Cabinet

Figure 1: Positioning the Spacer Bar on the Rack
Installing the T1600 Mounting Hardware for a Four-Post Rack or Cabinet ■3

Figure 2: Installing the Mounting Hardware for a Four-Post Rack or Cabinet
Related Topics T1600 Router Description■
■T1600 Router Installation Summary
■T1600 Site Preparation Requirements Checklist
Published: 2009-09-30
4■Installing the T1600 Mounting Hardware for a Four-Post Rack or Cabinet