Cisco Systems XR 12404 manual Rack Mounting Clearance, Multiple Routers in a Rack

Chapter 2 Preparing for Installation

Installation Site Requirements

Rack Mounting Clearance

The rack-mounting hardware included with the Cisco XR 12404 Router is suitable for most 19 inch equipment racks.

The following are rack-mounting guidelines for the Cisco XR 12404 Router.

•If you use a standard 19 inch racks be sure that the rack is bolted to the floor. The chassis mounts to the two rack posts, and the rest of the chassis is cantilevered off of the posts.

•Ensure that the weight of the Cisco XR 12404 Router does not make the rack unstable.

•Some racks are secured to ceiling brackets, if necessary, because of the weight of the equipment in the rack. Make sure that the rack you are installing the Cisco XR 12404 Router in is secured.

•For the enhanced model of the Cisco XR 12404 Router, the mounting rails on a 4-post rack must be recessed no more than 1.5 inches for the front door to fully open and close and to provide adequate room for cable routing.

Multiple Routers in a Rack

One of the unique features of the Cisco XR 12404 Router is its size. Up to 8 Cisco XR 12404 Routers can fit in a standard 19 inch equipment rack. When placing multiple routers in a rack, ensure there is sufficient ventilation to accommodate the router.

The heated exhaust air from other equipment can enter the inlet air vents and cause an overtemperature condition inside the router.

•Install and use the line card brackets and chassis cable-management bracket included with the router to keep cables organized and out of the way of line cards.

•Ensure that cables from other equipment do not interfere with access to the card cage, or require you to disconnect cables unnecessarily to perform equipment maintenance or upgrades.

•When mounting the router in a four-post type rack, be sure to use all of the screws provided to secure the chassis to the rack posts.

	Cisco XR 12404 Router Installation Guide
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