Installing The Mx240 Router Mounting Hardware For A Rack Or Cabinet - Juniper MX240 Hardware Manual

Installing the MX240 Router Mounting Hardware for a Rack or Cabinet

The router can be installed in a four-post rack or cabinet or an open-frame rack. Install the mounting
hardware on the rack before installing the router.
Install the mounting shelf, which is included in the shipping container, before installing the router. We
recommend that you install the mounting shelf because the weight of a fully loaded chassis can be up to
128 lb (58.1 kg).
Table 93 on page 217 specifies the holes in which you insert cage nuts and screws to install the mounting
hardware required (an X indicates a mounting hole location). 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 93: Four-Post Rack or Cabinet Mounting Hole Locations
Hole Distance Above U Division
4 2.00 in. (5.1 cm)
3 1.51 in. (3.8 cm)
2 0.88 in. (2.2 cm)
1 0.25 in. (0.6 cm)
To install the mounting shelf on the front rails of a four-post rack or cabinet, or the rails of an open-frame
rack:
1. If needed, install cage nuts in the holes specified in
2. On the back of each rack rail, partially insert a mounting screw into the lowest hole specified in
Table 93 on page 217.
3. Install the small shelf on the back of the rack rails. Rest the bottom slot of each flange on a mounting
screw.
4. Partially insert the remaining screws into the open holes in each flange of the small shelf (see
Figure 47 on page 218
5. Tighten all the screws completely.
1.14 U
0.86 U
0.50 U
0.14 U
or Figure 48 on page 219).
Mounting Shelf
X
X
X
X
Table 93 on page 217.
217