Cisco 4200 Series Hardware Installation Manual page 59

Mount the Chassis
Figure 36: Install the Cable Management Screws into the Slide-Rail Locking Bracket
1 Cable management bracket
8-32 x 0.375-inch Phillips screws (two per bracket)
3
b) Install two 8-32 x 0.375 inch Phillips screws through the inside of the slide-rail locking bracket to secure the cable
management bracket to slide-rail locking bracket.
Step 3
Attach the inner rails to the sides of the chassis:
a) Remove the inner rails from the slide rail assemblies.
b) Align an inner rail with each side of the chassis:
• Align the inner rail so that the three slots on the rail line up with the three pegs on the side of the chassis.
2 Rack-mount bracket
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Cisco Secure Firewall 4200 Series Hardware Installation Guide
Rack-Mount the Chassis Using Slide Rails
55