Rack Mounting the ASA 5512-X, 5515-X, and 5525-X With Brackets
The ASA 5512-X, 5515-X, and 5525-X appliances ship with rack mount brackets installed on the front of the chassis. If you want to mount the chassis to the back of the rack, you can move the brackets from the front to the back of the chassis.
Step 1 (Optional) Move the brackets to the back of the chassis to install it in the back of the rack.
a. Remove the rack-mount brackets from the chassis as shown in Figure 3-1.
Figure 3-1 Removing the Brackets from the Front of the Chassis
b. Install the brackets on the back of the chassis by attaching the brackets to the holes in the chassis as shown in Figure 3-2. After the brackets are secured to the chassis, you can mount it in a rack.
Figure 3-2 Installing the Brackets on the Back of the Chassis
Step 2 We recommend that you install the chassis with the front bezel facing the cold aisle. (See Figure 3-3 for an example of air flow from front to back.)
Figure 3-3 Airflow Direction
Step 3 Attach the chassis to the rack using the supplied screws appropriate for your rack (Figure 3-4).
Figure 3-4 Rack-Mounting the Chassis
Preparing an ASA 5512-X, ASA 5515-X, or ASA 5525-X to Use a Slide Rail Rack Mount System
These instructions show how to prepare an ASA 5512-X, ASA 5515-X, or ASA 5525-X chassis for mounting with the slide rail rack mount system. These chassis models ship with preinstalled fixed rack-mount brackets, which must be replaced with the die-cast brackets that ship in the slide rail rack mount kit.
From the slide rail rack mount kit, locate the two die-cast brackets, the six screws, and the four shoulder screws that you need to prepare your chassis for installation in the side rail rack.
Step 2 Remove the preinstalled fixed rack-mount bracket on either side of the chassis by removing the three bracket screws that hold each bracket in place. (See Figure 3-5.)
Figure 3-5 Remove Preinstalled Screws and Brackets on Either Side of Chassis
Step 3 Install a die-cast bracket to either side of the chassis by aligning and inserting the tab at the end of the bracket into the hole on the chassis and then hinging it into position so that the bracket is flush with the front face plate (bezel) of the chassis. Secure each bracket to the chassis with three screws.
(See Figure 3-6.)
Figure 3-6 Install Die-Cast Brackets with Three Screws
Step 4 Install two shoulder screws into the threaded hole locations on either side of the chassis (see Figure 3-7 for one side), and ensure that they are tight.
Figure 3-7 Install Two Shoulder Screws on Either Side of the Chassis
Rack Mounting the Chassis with the Slide Rail Mounting System
This section describes how to mount the chassis using the slide rail mounting system.
Although slide rail mounting is preferred, in the case of two-rail racks where the slide rails will not fit, you can use the rack mounting brackets. You must order them separately (ASA-BRACKETS=). Note that there will be a slight bend in the brackets when you attach them. For the procedure for attaching the brackets to the front or back of the chassis, see the “Rack Mounting the ASA 5512-X, 5515-X, and 5525-X With Brackets” section.
Before you begin:
Slide Rails (x2) (preconfigured for square hole racks)
Phillips flat-head screws for Inner Slide (x2)
Round Hole Inserts for round hole racks (x4)
Threaded Hole Brackets for threaded hole racks (x2)
Threaded Hole Standoffs for threaded hole racks (x2)
Phillips pan-head screws for threaded hole racks (x8)
The slide rails are pre-assembled for square hole racks. Additional steps are required for round hole racks and threaded hole racks. The following figure shows the slide rail with square hole rack inserts.
Locate the necessary tools—a Phillips screwdriver and a flat-head screwdriver (for threaded hole racks).
Follow these steps to mount the chassis using the slide rail mounting system:
Step 1 Disassemble the slide rail.
a. Pull the inner slide rail from the outer slide rail.
b. Slide the plastic tab forward, and pull the inner slide rail to disconnect it from the outer slide rail.
c. Repeat these steps for the other slide rail.
Step 2 Attach the inner rails to the chassis.
a. Align one of the inner slide rail key holes over the chassis shoulder screw on one side. Slide the inner slide rail forward so that the shoulder screw is securely in place.
b. Use a Phillips screwdriver to secure the inner slide rail with one Phillips flat-head screw (B).
c. Secure the other inner slide rail to the chassis by repeating the previous steps on this page.
Step 3 (Round and Threaded Hole Racks Only) Customize the slide rails for round hole racks or threaded hole racks.
a. Using a Phillips head screwdriver, remove the square insert from the rear of the rail. Keep the two Phillips head screws.
b. Remove the square insert from the front of the rail. Keep the two Phillips head screws.
c. (Round hole racks only) Align the round hole (C) insert to the rear of the rail, and secure it with two of the saved screws.
d. Align the round hole insert (C) or threaded hole bracket (D) to the front of the rail over the hooks.
Round hole insert
—Secure it with two of the saved screws.
Threaded hole insert
—Secure it with the threaded hole standoff (E) using a flat-head screwdriver.
No additional hardware is necessary for the rear adapter.
e. Repeat these steps for the other slide rail.
Step 4 Attach the outer slide rail to the rack.
Note We recommend that you install the chassis with the front bezel facing the cold aisle. (See Figure 3-3 for an example of air flow from front to back.)
Figure 3-8 Airflow Direction
Round and Square Hole Racks
a. Align the front of one of the outer slide rails with the rack upright, push it forward, and click it into place. Align the rear of the outer slide rail with the rack upright, pull the release tab, push the slide rail toward the rack, release the tab, and click it into place.
Note For racks shorter than 24 inches in depth, remove the rear bracket with a Phillips head screwdriver, pull the release tab, and adjust the slide rail to the appropriate length for the rack.
b. Secure the other outer slide rail to the rack.
Threaded Hole Racks
a. Align the slide rail to the front rack post. Secure it with two of the included Phillips pan-head screws (F).
b. Align the slide rail to the rear rack post. Secure it with two of the included Phillips pan-head screws (F).
c. Align the other slide rail to the rack.
Step 5 Install the chassis.
a. Align the inner slide rails to the outer slide rails. Install the inner slide rails into the outer slide rails until they lock into place.
b. Pull the side release tabs to unlock the inner slide rail, and push the chassis assembly into the rack.
Step 6 Secure the chassis to the rack with the front captive screws.