Juniper EX4400 - Page 159

4. Insert the at head 4x6-mm Phillips screws to aach the front mounng bracket assembly
(provided with the four-post rack mount kit) into the aligned holes on the chassis (see Figure 88 on
page 151). Tighten the screws.
Figure 88: Aach the Flush Mounng Bracket Assembly to the Switch
5. Decide which end of the switch you want to place at the front of the rack. Posion the switch so
that the AIR IN labels on the fan modules are next to the cold aisle and the AIR OUT labels on the
fan modules are next to the hot aisle.
6. Have one person grasp both sides of the switch, li the switch, and posion it in the rack, aligning
the holes of the mounng brackets with the threaded holes in the front post of the rack. Align the
boom hole in both the mounng brackets with a hole in each rack rail, making sure that the
chassis is level.
7. Have a second person secure the mounng brackets to the rack by using the screws appropriate for
your rack. Tighten the screws (see Figure 89 on page 151).
Figure 89: Secure the Switch to the Front Posts of a Rack
8. Slide the rear mounng bracket blades into the side rails of the front mounng bracket assembly
aached to the switch chassis (see Figure 90 on page 152).
9. Ensure that the chassis is level. Align the holes of the rear mounng brackets with the threaded
holes in the rear post of the rack. Align the boom hole in both the mounng brackets with a hole
in each rack rail. Align the boom hole in both the rear mounng brackets with the boom hole in
the front mounng brackets.
151