Cisco 3100 Series Hardware Installation Manual page 59

Rack-Mount the Chassis
.50-inch holes. The horizontal spacing is 18.312 inches (465.1 mm), and the rack opening is specified as a
minimum of 17.75 inches (450 mm).
You need the following to install the Secure Firewall 3100 in a rack using slide rails:
• Phillips screwdriver
• Two slide rails (part number 800-110033-01)
• Two slide rail locking brackets (700-121935-01)
• Six 8-32 x 0.302-inch Phillips screws (part number 48-102184-01)
• Two M3 x 0.5 x 6 mm Phillips screws (part number 48-101144-01)
• (Optional) Two cable management brackets (part number 700-106377-01) with four 8-32 x 0.375-inch
Phillips screws (part number 48-2696-01)
Slide rail assemblies work with four-post racks and cabinets with square slots, round 7.1mm holes, #10-32
threaded holes, and #12-24 threaded holes on the rack post front. The slide rail works with front to back
spacing of rack posts from 24 to 36 inches. The rack-mounting posts need to be 2 to 3.5 mm thick to work
with the slide rail rack mounting.
Safety Warnings
Take note of the following warnings:
Warning
Statement 164—Lifting Requirement
Two people are required to lift the heavy parts of the product. To prevent injury, keep your back straight
and lift with your legs, not your back.
Warning Statement 1006 Chassis Warning for Rack-Mounting and Servicing
To prevent bodily injury when mounting or servicing this unit in a rack, you must take special precautions
to ensure that the system remains stable. The following guidelines are provided to ensure your safety:
Warning Statement 1018 Supply Circuit
To reduce risk of electric shock and fire, take care when connecting units to the supply circuit so that
wiring is not overloaded.
• This unit should be mounted at the bottom of the rack if it is the only unit in the rack.
• When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the
heaviest component at the bottom of the rack.
• If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing
the unit in the rack.
Cisco Secure Firewall 3100 Series Hardware Installation Guide
Rack-Mount the Chassis Using Slide Rails
55