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Cisco CRS-1 Carrier Routing System
This site planning guide describes how to plan and prepare your site facilities for the installation of a Cisco CRS-1 Carrier Routing System 8-Slot Line Card Chassis (also referred to in this document as the “Cisco CRS-1 8-slot line card chassis”). The guide provides a brief description of the chassis and its components, and basic site facilities requirements.
This guide describes all power, cooling, and environmental specifications to consider before ordering and installing the Cisco CRS-1 8-slot line card chassis. This guide also describes site facilities requirements, such as floor space, weight requirements, receiving and staging, and installation information to help you plan the site where the routing system will be installed.
Tip The installation of a CRS-1 8-slot line card chassis may require space, floor loading, power, and cooling modifications to a facility; therefore, you should plan the site well in advance of the scheduled delivery of the system.
The Cisco CRS-1 Carrier Routing System replaces much of the equipment in service provider points of presence (POPs) today. The routing systems are built around a scalable, distributed three-stage switch fabric and a variety of line card (packet) interfaces. These packet interfaces are located on modular services cards (MSCs) and their associated physical layer interface modules (PLIMs), which are effectively cross-connected to each other through the switch fabric.
•The Cisco CRS-1 8-slot line card chassis is a half-height, rack-mounted version of the 16-slot chassis. It is a highly scalable routing system that provides 640 gigabits per second (Gbps) of routing capacity and supports up to 8 MSCs. The chassis installs in a 19-inch equipment rack.
The Cisco CRS-1 8-slot line card chassis can be installed in colocation facilities, data centers, and many Tier II and Tier III locations. The routing system consists of a single rack-mounted chassis that contains the system components:
•Modular services cards (MSCs), also called line cards (up to eight)
•Physical layer interface modules, or PLIMs (up to eight, one for each MSC)
•Route processor (RP) cards (up to two)
•Switch fabric cards (four required)
•A chassis midplane that connects MSCs to their PLIMs and to switch fabric cards The Cisco CRS-1 8-slot line card chassis has its own power and cooling subsystems.
Cisco CRS-1 Carrier Routing System 8-Slot Line Card Chassis Site Planning Guide
