Chapter 2 Preparing for Router Installation

General Site Requirements

The Cisco ISR 4451-Xs are designed to meet the industry EMC, safety, and environmental standards described in the Regulatory, Safety, and Compliance Information for Cisco 4451-X Integrated Services Routers document.

Site Environmental Requirements

Environmental monitoring in the Cisco ISR 4451-X protects the system and components from damage caused by excessive voltage and temperature conditions. To ensure normal operation and avoid unnecessary maintenance, plan and prepare your site configuration before installation. After installation, make sure the site maintains the environmental characteristics as shown in Table 2-1.

Table 2-1

Cisco ISR 4451-X Environmental Tolerances

 

 

 

 

Environmental Characteristic

Minimum

Maximum

 

 

 

Steady State Operating

0 degree C

50 degree C

 

 

 

(50 degrees C at 10,000

 

 

 

feet)

 

 

 

 

Storage

 

–20 degrees C

+70 degrees C

 

 

 

Humidity operating (noncondensing)

10%

90%

 

 

 

Humidity nonoperating (noncondensing)

5%

95%

 

 

 

Altitude operating: over allowable temperature

–500 feet

10,000 feet

range (0 to 50 degrees C)

 

 

 

 

 

Altitude, nonoperating: over allowable temperature

–1000 feet

50,000 feet

range

 

 

 

 

 

 

Thermal shock non-operating with change over time

–25 degrees C

+70 degrees C

of 3 minute

 

 

 

 

 

 

Thermal Shock - Operating at 2.5 degree C per

0 degrees C

+50 degrees C

minute

 

 

 

 

 

 

 

Hardware Installation Guide for the Cisco 4451-X Integrated Services Router

 

OL-27644-01

2-8

 

 

 

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Cisco Systems ISR4451XK9 manual Site Environmental Requirements, Environmental Characteristic Minimum Maximum