Cisco 7541 - Page 30

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Cisco Wide Area Virtualization Engine 7541, 7571, and 8541 Hardware Installation Guide
Chapter 3 Installing the WAVE-7541, WAVE-7571, and WAVE-8541
Rack-Mounting Parts, Tools, and Considerations
When vertical space in the rack is not filled by a WAVE appliance or rack component, the gaps between
the components cause changes in airflow through the rack and across the WAVE appliances. Cover all
gaps with filler panels to maintain proper airflow.
Caution Always use filler panels to fill empty vertical spaces in the rack. This arrangement ensures proper
airflow. Using a rack without filler panels results in improper cooling that can lead to thermal damage.
• Observe the following additional requirements to ensure adequate airflow and to prevent damage to
the equipment:
– Front and rear doors—If the 42U rack includes closing front and rear doors, you must allow
5,350 sq cm (830 sq in) of holes evenly distributed from top to bottom to permit adequate
airflow (equivalent to the required 64 percent open area for ventilation).
– Side—The clearance between the installed rack component and the side panels of the rack must
be a minimum of 7 cm (2.75 in).
Note Rack-mounting the WAVE-7541, WAVE-7571, and WAVE-8541 appliance is supported for rear mount
in a 4-post rack only.
Table 3-1 lists the rack mounting hardware included in your shipping container. You will need a Phillips
screwdriver. Verify that you have received the following items for the installation:
Table 3-1 Rack Mount Lug Hardware Provided
Item Name Description
Qt
y
1 Front rack mount
bracket
Front rack mount L bracket 2
2 Rear rack mount
bracket holder
Rear rack mount bracket holder 2
3 36” rear rack mount
bracket
Rear rack mount bracket (36 inch) 2
4 Front rack mount
bracket screw
Front rack bracket screw, #6-32 x 0.30”, Wafer Head,
Phillips, Steel w/ Zinc and Black
6
5 Rear rack mount
bracket holder screw
Rear bracket holder screw, M4 x0.7 x 4.85 mm, 120º, Flat
Head, Phillips, Steel w/ Zinc and Black
6
6 Rack screw Rack screw, #10-32 x 0.50”, Truss Head, Phillips, Steel w/
Ni and Black
8
7 Rack screw Rack screw, M5 x 12.7 mm, Truss Head, Phillips, Steel w/
Ni and Black
8