Cisco Systems 7200 VXR manual Temperature and Humidity Requirements, 4F -20C

Chapter 2 Preparing for Installation

Site Requirement Guidelines

When planning your rack installation, consider the following guidelines:

•If you plan to use an equipment shelf, ensure that the shelf is constructed to support the weight and dimensions of the chassis. Figure 2-2shows the chassis footprint, which you need if you are designing a customized shelf. We recommend that you use the rack-mount kit designed for Cisco 7200 VXR routers.

Caution To prevent chassis overheating, never install the Cisco 7200 VXR in an enclosed rack or room that is not properly ventilated or air-conditioned.

•Allow sufficient clearance around the rack for maintenance. If the rack is mobile, you can push it back near a wall or cabinet for normal operation and pull it out for maintenance (installing or moving port adapters, connecting cables, or replacing or upgrading components). Otherwise, allow 19 inches (48.3 cm) of clearance to remove Cisco 7200 VXR FRUs.

•If you are planning to install the cable-management brackets on a Cisco 7200 VXR router that you are rack-mounting from the front, you must install the cable-management brackets and the rack-mount brackets before you install the chassis in the rack.

•Provide an adequate chassis ground (earth) connection for your router chassis.

Note We strongly recommend that you provide a chassis ground connection. See the “Attaching a Chassis Ground Connection” section on page 3-17in Chapter 3, “Installing a Cisco 7200 VXR Router” for instructions.

To properly install a Cisco 7200 VXR chassis in a rack, see the instructions in the “Rack-Mounting a Cisco 7200 VXR Router” section on page 3-2in Chapter 3, “Installing a Cisco 7200 VXR Router.”

Temperature and Humidity Requirements

Table 2-1lists the operating and nonoperating environmental site requirements. The ranges listed are those within which the Cisco 7200 VXR routers continue to operate; however, a measurement that is approaching the minimum or maximum of a range indicates a potential problem. You can maintain normal operation by anticipating and correcting environmental anomalies before they approach a maximum operating range.

	Table 2-1	Specifications for Operating and Nonoperating Environments
	Specification		Minimum	Maximum
	Temperature, ambient operating		32•F (0•C)	104•F (40•C)
	Temperature, ambient nonoperating and storage		–4•F(–20•C)	149•F (65•C)
	Humidity, ambient (noncondensing) operating		10%	90%
	Humidity, ambient (noncondensing) nonoperating		5%	95%
	and storage
	Altitude, operating, and nonoperating		Sea level	6,500 ft.
				(2000 m)
	Vibration, operating		5–200 Hz, 0.5 g (1 octet/min.)	—
	Vibration, nonoperating		5–200 Hz, 1 g (1 octet/min.)	—
			200–500 Hz, 2 g (1 octet/min.)
		Cisco 7200 VXR Installation and Configuration Guide
OL-5013-09					2-7