Juniper EX8200 Series Instruction Manual

Installing Adjustable Mounting Brackets in a Rack or Cabinet for an EX 8200 series
Switch
To mount the switch on a four-post rack or cabinet, you must first install the adjustable
mounting brackets in the rack or cabinet. (The remainder of this topic uses “rack”
to mean “rack or cabinet.”) The EX 8200 series switch comes with a four-piece set
of adjustable mounting brackets that supports the chassis in the rack.
NOTE: The adjustable mounting brackets are not for installation in two-post racks.
The four adjustable mounting bracket pieces are:
■1 left front adjustable mounting bracket. The bracket is labeled “LEFT FRONT”
on the side of the bracket that faces the interior of the rack, near the holes for
attaching the bracket to the rack.
■1 right front adjustable mounting bracket. The bracket is labeled “RIGHT FRONT”
on the side of the bracket that faces the interior of the rack, near the holes for
attaching the bracket to the rack.
■2 rear adjustable mounting brackets. These brackets are labeled “REAR”on the
side of the bracket that faces the interior of the rack, near the holes for attaching
the bracket to the rack. The rear brackets are interchangeable; you can use either
of the rear brackets with the right or left front adjustable mounting bracket.
Ensure that you have the following parts and tools available to install the adjustable
mounting brackets:
■A Phillips (+) screwdriver, number 1, 2, or 3, depending on the size of your rack
mounting screws
■A Phillips (+) screwdriver, number 2 to install the screws that connect the rear
and front mounting brackets
■16 mounting screws appropriate for your rack to attach the four mounting bracket
pieces to the rack
When you install the adjustable mounting brackets, the “arms”of the brackets overlap.
The overlap area adjusts the total bracket length to fit three standard rack sizes:
23.62 in. (600 mm), 30 in. (762 mm), and 31.5 in. (800 mm).
To install the mounting brackets in a four-post rack (see Figure 2 and Figure 3):
1. Remove the adjustable mounting brackets from the accessory box.
2. Decide where to position the switch in the rack. If the rack is empty, position
the switch in the lowest possible location. See Rack Requirements for an EX
8208 Switch, Rack Requirements for an EX 8216 Switch, Cabinet Requirements
and Specifications for an EX 8208 Switch, and Cabinet Requirements and
Specifications for an EX 8216 Switch.
3. Position the left front adjustable mounting bracket at the desired position in the
left side of the rack and line up its front screw holes with the holes in the rack.
Installing Adjustable Mounting Brackets in a Rack or Cabinet for an EX 8200 series Switch ■1

Use 4 mounting screws appropriate for your rack to attach the left front bracket
to the rack.
4. Position one of the rear brackets at the left rear of the rack on the same level as
the left front bracket, so that the rear bracket overlaps with the left front bracket.
The screw holes for connecting the front and rear brackets should overlap. Use
4 mounting screws appropriate for your rack to attach the rear bracket to the
rack.
5. Insert 6 of the screws provided with the mounting brackets loosely into the
overlapping bracket holes to connect the left front and rear brackets together.
When you have inserted all of the screws, tighten them fully to 12–16 in.-lb
torque using the Phillips screwdriver, number 2. See Figure 1.
Figure 1: Adjustable Mounting Brackets for Four-Post Rack Installation
6. Position the right front adjustable mounting bracket at the desired position in
the right side of the rack opposite the installed left front bracket, so that it is on
the same rack level as the left bracket. If the right and left front brackets are not
on the same level, the chassis will rest at an angle in the rack instead of resting
flat and level. Line up the right bracket's front screw holes with the holes in the
rack. Use 4 mounting screws appropriate for your rack to attach the right front
bracket to the rack.
7. Position the other rear bracket at the right rear of the rack on the same level as
the right front bracket, so that the rear bracket overlaps with the right front
bracket. The screw holes for connecting the front and rear brackets should
overlap. Use 4 mounting screws appropriate for your rack to attach the rear
bracket to the rack.
8. Insert the remaining 6 screws provided with the mounting brackets loosely into
the overlapping bracket holes to connect the right front and rear brackets
together. When you have inserted all of the screws, tighten them fully to 12–16
in.-lb torque using the Phillips screwdriver, number 2. See Figure 1.
2■Installing Adjustable Mounting Brackets in a Rack or Cabinet for an EX 8200 series Switch

Figure 2: Adjustable Mounting Brackets Installed in a Four-Post Rack (EX 8208 Switch)
Figure 3: Adjustable Mounting Brackets Installed in a Four-Post Rack (EX 8216 Switch)
Related Topics ■Mounting an EX 8208 Switch on a Rack or Cabinet Using a Mechanical Lift
■Mounting an EX 8208 Switch on a Rack or Cabinet Without Using a Mechanical
Lift
■Mounting an EX 8216 Switch on a Rack or Cabinet
Installing Adjustable Mounting Brackets in a Rack or Cabinet for an EX 8200 series Switch ■3

4■Installing Adjustable Mounting Brackets in a Rack or Cabinet for an EX 8200 series Switch