Installing Adjustable Mounting Brackets in a Rack or Cabinet for an EX8200 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 EX8200 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 EX8208 Switch, Rack Requirements for an EX8216 Switch, Cabinet Requirements and Specifications for an EX8208 Switch, and Cabinet Requirements and Specifications for an EX8216 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. 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. Connect left front and rear brackets (see Figure 1):
   1. Insert 6 of the screws provided with the mounting brackets into the overlapping bracket holes.
   2. Hand tighten the screws fully (to 12–16 in.-lb torque) using a number 2 Phillips screwdriver.

   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. Connect the right front and rear brackets (see Figure 1):
   1. Insert 6 of the screws provided with the mounting brackets into the overlapping bracket holes.
   2. Hand tighten the screws fully (to 12–16 in.-lb torque) using a number 2 Phillips screwdriver.

Figure 2: Adjustable Mounting Brackets Installed in a Four-Post Rack (EX8208 Switch)

Figure 3: Adjustable Mounting Brackets Installed in a Four-Post Rack (EX8216 Switch)