Rack Mounting the Switch
Important! The rack mounting procedure is identical for all switches covered by this guide. Illustrations in this chapter depict the mounting of a DCS-7020SR-32C2 switch.

Les procédure de montage du bâti est identique pour tous les commutateurs visés par ce guide. Illustrations dans ce chapitre montrent le montage d’un interrupteur de DCS-7020SR-32C2.
Section 3.1 provides instructions for mounting all switches in a two-post rack.
Section 3.2 provides instructions for mounting all switches in a four-post rack.
After completing the instructions for your rack type, proceed to Chapter 4.
3.1 Two-Post Rack Mount
To mount the switch onto a two-post rack, attach the mounting ears to the chassis, then attach the ears to the rack posts. Two-post accessory kits include the following two-post mounting parts:
2x mounting ears
Important! Attachment pins must engage all three upper bracket holes.

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3.1.1 Attaching Mounting Brackets to the Chassis
This procedure attaches mounting ears to the switch chassis ( Figure 3-1).
Step 1 Attach the mounting ears to the chassis using screws.
Figure 3-1: Attaching the Mounting Ears to the Switch Chassis
Note DCS-7020SR-32C2 supports front mount only.
3.1.2 Inserting the Switch into the Rack
This procedure attaches the switch to the rack ( Figure 3-2).
Step 1 Lift the chassis into the rack. Position the mounting ears against the rack posts.
Note The mounting ears should be at the same height to ensure that the device is level.
Step 2 Select mounting screws that fit your equipment rack.
Step 3 Attach the mounting ears to the rack posts.
Figure 3-2: Inserting the Switch into the Rack
After completing the two-post rack mount, proceed to Chapter 4.
3.2 Four-Post Rack Mount
Note For DCS-7020SR-32C2, four-post rack kits are optional and sold separately.
The switch is mounted onto a four-post rack by assembling two rails onto the rear posts, sliding the switch onto the rails, then securing the switch to the front posts.
The installation kit provides the following four-post mounting parts:
2x mounting brackets
2x rail-rods
2x rail-slides
The rail-rods and rail-slides assemble into two identical slide-rails.
3.2.1 Attaching Mounting Brackets to the Chassis
This procedure attaches mounting brackets to the switch chassis as depicted by Figure 3-3.
Step 1 Align the mounting brackets with the sides of the chassis.
Step 2 Use the screws to attach the brackets to the chassis.
Figure 3-3: Attaching Mounting Brackets to the Switch Chassis
3.2.2 Assembling the Rails onto the Equipment Rack
Rail-rods and rail-slides assemble into two identical rails. Each rail connects a front post to a rear post. When the rails are installed, the switch slides on the rails into the rack. Each bracket includes a screw that attaches the switch to the rail.
Each end of an assembled rail contains two rack plugs ( Figure 3-4). The rails are installed into a rack by inserting the plugs into rack slots. When installing rails into posts with threaded or rounded holes, remove all plugs located on both sides of the assembled rails, then install the rails with bolts that fit the rack.
This procedure attaches the rails to a four post rack:
Step 1 Slide a rail-rod into a rail-slide ( Figure 3-4) until the rail clip makes an audible click.
Note The rail clip prevents the extension of the rail beyond the maximum supported distance between the front and rear rack posts.
Figure 3-4: Assembling the Rails
Step 2 Attach rail to the right rear rack post by inserting rod-end rack plugs into post slots ( Figure 3-5). The slide assembly must be inside the right posts, relative to the left rack posts.
If the rack plugs were previously removed, use bolts to attach the rail to the rack.
Step 3 Attach the slide end of the rail to the front post by extending the rail end past the post, then contracting the rail while guiding the rack plugs into the post ( Figure 3-5).
Step 4 Repeat step 1 through step 3 for the left posts. Ensure the rails are on the same horizontal level.
Figure 3-5: Attaching the Rails
 
3.2.3 Attaching the Switch to the Rack
After the rails are installed, the switch slides on the rails into the rack. Each bracket includes a thumb screw that attaches the switch to the rail.
Step 1 Lift the switch into the rack and insert the mounting brackets into the slide rails ( Figure 3-6).
Figure 3-6: Inserting the Switch onto the Rails
Step 2 Slide the switch on the rails, toward the rear posts, until the mounting bracket flanges are flush with the rail flanges attached to the rack posts.
Step 3 Attach the bracket flanges to the rack post using the quick-release thumb screws supplied with the brackets ( Figure 3-7).
Figure 3-7: Attaching the Switch to the Rack Posts
After completing the four-post rack mount, proceed to Chapter 4.