Appendix A Cabinet and Rack Installation

Cabinet and Rack Requirements

The cabinet or rack must also meet the following requirements:

The minimum vertical rack space per Cisco Nexus 2000 Series FEX chassis must be one RU (rack units), equal to 1.75 inches (4.4 cm).

The minimum vertical rack space per chassis must be one RU (rack unit), equal to 1.75 inches (4.4 cm).

The width between the rack-mounting rails must be at least 17.75 inches (45.0 cm) if the rear of the device is not attached to the rack. For four-post EIA racks, this measurement is the distance between the two front rails.

For four-post EIA cabinets (perforated or solid-walled), the requirements are as follows:

The minimum spacing for the bend radius for fiber-optic cables should have the front-mounting rails of the cabinet offset from the front door by a minimum of 3 inches (7.6 cm).

The distance between the outside face of the front mounting rail and the outside face of the back mounting rail should be 23.0 to 30.0 inches (58.4 to 76.2 cm) to allow for rear-bracket installation.

A minimum of 2.5 inches (6.4 cm) of clear space should exist between the side edge of the chassis and the side wall of the cabinet. No sizeable flow obstructions should be immediately in the way of chassis air intake or exhaust vents.

Note Optional jumper power cords are available for use in a cabinet. See the “Jumper Power Cord” section on page C-8.

Requirements Specific to Perforated Cabinets

A perforated cabinet is defined as a cabinet with perforated front and rear doors and solid side walls. In addition to the requirements listed in the “General Requirements for Cabinets and Racks” section on page A-1, perforated cabinets must meet the following requirements:

The front and rear doors must have at least a 60 percent open area perforation pattern with at least 15 square inches (96.774 square cm) of open area per rack unit of door height.

The roof should be perforated with at least a 20 percent open area.

The cabinet floor should be open or perforated to enhance cooling

The Cisco R Series rack conforms to these requirements.

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Requirements Specific to Standard Open Racks

In addition to the requirements listed in the “General Requirements for Cabinets and Racks” section on page A-1, if mounting the chassis in an open rack (no side panels or doors), ensure that the rack meets the following requirements:

The minimum vertical rack space per chassis must be two rack units (RU), equal to 3.47 inches (8.8 cm).

The horizontal distance between the chassis and any adjacent chassis should be 6 inches (15.2 cm), and the distance between the chassis air vents and any walls should be 2.5 inches (6.4 cm).

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Cisco Systems 2000 manual Requirements Specific to Perforated Cabinets, Requirements Specific to Standard Open Racks

2000 specifications

In the year 2000, Cisco Systems, a leading technology company, was at the forefront of networking and communication solutions. With a rich history of innovation, Cisco solidified its position as a global leader in providing advanced networking technologies, hardware, and software.

One of the most significant features of Cisco in 2000 was its comprehensive portfolio of routers and switches. The company was known for its powerful routers, which were essential for managing internet traffic efficiently. Cisco’s Catalyst series of switches provided high levels of performance and scalability, enabling companies to build robust local area networks (LANs). These devices supported Ethernet technologies and catered to the growing demands of businesses for faster and more reliable connectivity.

In the late 1990s and early 2000s, the internet was experiencing rapid growth, and Cisco capitalized on this surge by introducing technologies that facilitated internet protocol (IP) networking. Its focus on developing IP-based solutions allowed businesses to integrate voice, video, and data services seamlessly over a single network. This was a significant advancement known as convergence, fundamentally changing how organizations approached communication.

Another characteristic of Cisco in 2000 was its commitment to security. As businesses began to increase their reliance on the internet, the risks associated with cyber threats also grew. Cisco developed security solutions such as firewalls and intrusion detection systems to help protect networks from potential attacks. The introduction of the Cisco Secure Network Architecture laid the foundation for comprehensive network security strategies.

Cisco also emphasized research and development, consistently investing in new technologies and innovations. The company was a pioneer in developing optical networking solutions, which enabled faster data transmission over long distances. This was crucial for supporting the growing bandwidth demands of the era.

Furthermore, Cisco’s collaboration with various technology partners and its global presence allowed it to provide customers with tailored solutions to meet diverse needs across different industries. The introduction of certification programs, like the Cisco Certified Network Associate (CCNA), helped create a skilled workforce equipped to deploy and manage Cisco technologies effectively.

In summary, Cisco Systems in 2000 showcased a blend of powerful routing and switching capabilities, a commitment to internet security, and innovative solutions that paved the way for future networking technologies. Its focus on convergence and relentless drive for high-performance networking made it a vital player in the evolving landscape of technology during this period.