Chapter 3 Technical and Environmental Specifications

Equipment Rack Specifications

Table 3-2 8-Slot Line Card Chassis and Equipment Rack Specifications (continued)

 

 

 

 

Load (weight) rating

The rack must support the following weights and specifications:

 

 

 

 

 

650 lb (294.8 kg) single chassis with full cosmetics

 

 

 

 

 

1300 lb (589.7 kg) two chassis, each with full cosmetics

 

 

 

 

 

95 lb (43.0 kg) or more for each chassis for cabling

 

 

 

 

 

Additional weight of other components in rack

 

 

 

 

 

Note ANSI specification T1.336 (2003), which defines static load

 

 

 

 

 

 

and safety margins, recommends that racks be designed to

 

 

 

 

 

 

support at least two times the anticipated load.

 

 

 

 

 

Note See ANSI specification T1.329 (2002) for dynamic load

 

 

 

 

 

 

requirements and earthquake resistance specifications.

 

 

 

 

 

 

 

 

 

 

Chassis and rack footprint

5.9 sq. ft (0.55 sq. m), 23.6 in. rack width by 36 in. chassis length

 

 

 

 

(floor contact area)

 

 

 

 

 

 

 

Maximum floor loading

600 lb/4.5 sq. ft = 133 lb/sq. ft (without cosmetics or doors)

 

 

 

 

 

272.2 kg/4134.2 sq. cm = .07 kg/sq. cm

 

 

 

 

 

650 lb/4.9 sq. ft = 132.7 lb/sq. ft (with cosmetics and doors)

 

 

 

 

 

294.8 kg/4580.1 sq. cm = .06 kg/sq. cm

 

 

 

 

 

Note Be sure to include the weight of the rack when you consider

 

 

 

 

 

 

floor loading requirements. The above numbers do not

 

 

 

 

 

 

include rack weight.

 

 

 

 

 

 

 

 

 

 

 

 

Rack Anchoring

 

 

 

 

 

 

 

General considerations

The rack must be bolted to the floor. For more information, see

 

 

 

 

 

 

the Cisco CRS-1 Carrier Routing System Line Card Chassis

 

 

 

 

 

 

Unpacking, Moving, and Securing Guide.

 

 

 

 

 

Consider floor and overhead anchoring requirements for the site,

 

 

 

 

 

 

and size and load capacity of anchors and floor structure.

 

 

 

 

 

Make sure that floor mounting bolts are accessible, especially if

 

 

 

 

 

 

annual retorquing of bolts is required.

 

 

 

 

Floor mounting holes

Outrigger L-brackets:

 

 

 

 

 

 

20.1-inch (51.0 cm) wide x 31.6-inch (80.3 cm) deep

 

 

 

 

 

Internal frame holes:

 

 

 

 

 

 

17.625-inch (44.77 cm wide) x 21-inch (53.34 cm) deep

 

 

 

 

 

For all other racks, check with rack manufacturer.

 

 

 

 

 

 

 

 

 

 

 

 

Chassis Clearances

 

 

 

 

 

 

 

Two chassis in a single rack

0.5-inch (1.27 cm) between chassis for horizontal shelf brackets

 

 

 

 

Front and rear of chassis

40.4-inch (102.6 cm) for chassis installation

 

 

 

 

 

36-inch (91.4 cm) for service access and airflow

 

 

 

 

Inlet and exhaust openings on

6-inch (15.2 cm)

 

 

 

 

chassis and power modules

 

 

 

 

 

 

 

Top of chassis

No overhead clearance for a single chassis. Two chassis in a rack

 

 

 

 

 

requires 0.5-inch (1.27 cm) between chassis for mounting rails.

 

 

 

 

 

 

 

 

 

Cisco CRS-1 Carrier Routing System 8-Slot Line Card Chassis Site Planning Guide

 

 

 

 

3-4

 

 

 

 

OL-5802-06

 

 

 

 

 

 

 

Page 30
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Cisco Systems manual Cisco CRS-1 Carrier Routing System Line Card Chassis

CRS-1 specifications

Cisco Systems' Carrier Routing System (CRS-1) is a cutting-edge, high-capacity router designed to meet the demands of service providers and large enterprises. Introduced in the early 2000s, the CRS-1 represents a significant leap forward in routing technology, offering unparalleled performance, scalability, and reliability.

One of the primary features of the CRS-1 is its exceptional scalability. The system is built on a modular architecture that allows for easy upgrades and expansions. This enables service providers to start with a configuration that suits their immediate needs while having the flexibility to expand as traffic demands grow. The CRS-1 supports a wide range of line cards, enabling data, voice, and video to be managed on a single platform, which simplifies network management and reduces operating costs.

The CRS-1 leverages advanced technologies that enable it to deliver impressive performance. With the ability to handle up to 92 terabits per second of throughput, the router is capable of supporting a vast number of connections, making it well-suited for large-scale service providers and data centers. This level of performance is powered by Cisco’s proprietary silicon technology, which optimizes the packet forwarding process and enhances overall efficiency.

Another key characteristic of the CRS-1 is its strong focus on reliability and redundancy. The system is designed with high availability in mind, ensuring that it can continue to operate seamlessly even in the event of hardware failures. Redundant components, such as power supplies and route processors, allow the CRS-1 to maintain its performance and uptime, a critical requirement for mission-critical network operations.

Additionally, the CRS-1 supports a wide variety of protocols and technologies, including Internet Protocol (IP), Multiprotocol Label Switching (MPLS), and various service provider features. This versatility makes it a compelling choice for organizations looking to implement advanced networking capabilities, such as Quality of Service (QoS) and traffic engineering.

In summary, the Cisco Systems CRS-1 stands out as a formidable solution for modern routing needs. Its modular design, exceptional scalability, robust performance, reliability, and support for multiple protocols and services make it an ideal choice for service providers and enterprises seeking to future-proof their networks. As the demand for bandwidth continues to surge, the CRS-1 remains a pivotal component in the evolution of networking infrastructure.