Cisco Systems 7609 manual Site Requirements, Environmental Requirements

Chapter 2 Preparing for Installation

Site Requirements

Site Requirements

This section provides site power requirements for the Cisco 7609 Internet Router. You should verify the site power prior to installing the switch. Power requirements vary for each switch; ensure that you verify the site power for the type of switch you are installing.

For EMI recommendations, refer to the Site Preparation and Safety Guide.

Environmental Requirements

Insure adequate spacing between racks using the information in Table 2-1. Keep all of the vents clear of obstructions, including dust and foreign conductive material, and away from the exhaust ports of other equipment.

Table 2-1 Chassis Airfow Requirements

				Minimum	Minimum
		Airflow	Air Filter	Clearance	Horizontal
Chassis Model	Airflow Intake	Exhaust	Option	(walls)	Separation
OSR-7609	Front, rear	Front, rear, left	No	6 in (15 cm)	12 in (30.5)
(Figure 1-2)		side, right side

Heat dissipation is an important consideration for sizing the air-conditioning requirements for an installation. The power and heat associated with a Cisco 7609 Internet Router varies based upon these considerations:

•Power supply type

•Module types and quantities

•Average traffic levels

Unless otherwise noted, the information in Table 2-2and Table 2-3assumes worst-case conditions (with GBICs and port adapters installed, if applicable). Typical numbers are approximately 30 percent below the numbers listed here. See Table 2-4for a sample calculation of a switch configuration.

	Cisco 7609 Internet Router Installation Guide
2-2	OL-5079-04