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Chapter 5
Prepare for Router Installation
This chapter describes how to prepare your site for installation of the M5 and M10 Internet
routers. It
discusses the following topics:
• Rack Requirements on page 37
• Clearance Requirements for Airflow and Hardware Maintenance on page 40
• Router Environmental Tolerances on page 40
• Fire Safety Requirements on page 41
• Power Guidelines, Requirements, and Specifications on page 42
• Network Cabl
e Specifications and Guidelines on page 48
• Cable Specifications for Routing Engine Management Interfaces on page 52
• Site Preparation Checklist on page 52
Rack Requirements
The router must be installed in a rack. Many types of racks are acceptable, including
front-mount racks, 4-post (telco) racks, and center-mount racks. An example of a
center-moun
t rack appears in Figure 16.
The following sections describe rack requirements:
• Rack Size and Strength on page 37
• Spacing of Mounting Holes on page 39
• Connection to Building Structure on page 39
Rack Size and Strength
The router is designed for installation in a rack that complies with either of the following
standards:
• A 19-in. rack as defined in Cabinets, Racks, Panels, and Associated Equipment
(document number EIA-310-D) published by the Electronics Industry Association
(http://www.eia.org).
Prepare for Router Installation
37