Chapter 2 Preparing for Installation
Equipment Rack-Mounting Guidelines
•If you plan to use an equipment shelf, ensure that the shelf is constructed to support the weight and dimensions of the chassis. Figure 2-11shows the chassis footprint, which you will need if you are designing a customized shelf.
•Install the router in an open rack whenever possible. If installation in an enclosed rack is unavoidable, ensure that the rack has adequate ventilation or an exhaust fan.
•To properly install the Cisco 7507 or Cisco 7507-MX in a rack, use the instructions in the configuration note Cisco 7000 and Cisco 7507 Rack-Mount Kit Installation Instructions (Document Number 78-1058-xx, where xx indicates the latest document version) that accompanies the rack-mount kit. The rack-mount kit for the Cisco 7507 and Cisco 7507-MX is the same kit (ACS-7000RMK=) as the rack-mount kit for the Cisco 7513, Cisco 7513-MX, and Cisco 7576.
In addition to the preceding guidelines, we recommend you review the precautions for avoiding overtemperature conditions in the “General Equipment Rack Ventilation Considerations” section on page 2-15.
Cisco 7513, Cisco 7513-MX, and Cisco 7576 Rack-Mount Considerations
The rack-mounting hardware included with the Cisco 7513, Cisco 7513-MX, and Cisco 7576 is suitable for most 19-inch equipment racks and 2-post racks. Ideally, you should be able to access both the interface processor and noninterface processor ends of the router without having to remove the chassis from the rack.
The router can be mounted in the rear of a rack. Before using a particular rack, check for obstructions (such as a power strip) that could impair rack-mount installation. If a power strip does impair a rear rack-mount installation, remove the power strip before installing the router in the rack and then replace it after the chassis is installed. As an alternative, the router can be mounted on an equipment shelf provided that the shelf and rack dimensions allow the router to be secured to the shelf and the overall configuration permits safe installation and access; however, we recommend rack-mount installation for the Cisco 7513, Cisco 7513-MX, and Cisco 7576. Figure 2-12shows the chassis footprint and outer dimensions.
To use the rack-mounting hardware provided with the router, consider the following guidelines:
•To mount the router between two posts or rails using the mounting ears, the inner clearance (the width between the inner sides of the two posts or rails) must be at least 17.72 inches (45 cm).
•The height of the chassis is 33.75 inches (85.725 cm).
•When mounting the router in four-post or 2-post racks, be sure to use all of the screws provided to secure the chassis to the rack posts. Using fewer than all the screws provided in the rack-mount kit might not be sufficient to support the weight of the chassis.
•If the rack has a vertical power strip or other obstacle, ensure that there is sufficient clearance to install and remove processor modules, which must be pulled straight out of their slots.
| Cisco 7500 Series Installation and Configuration Guide |
2-20 | OL-5008-03 B0 |
