Cisco UBR7246VXR 하드웨어 설치 - 페이지 5

{카테고리_이름} Cisco UBR7246VXR에 대한 하드웨어 설치을 온라인으로 검색하거나 PDF를 다운로드하세요. Cisco UBR7246VXR 25 페이지. Universal broadband router
Cisco UBR7246VXR에 대해서도 마찬가지입니다: 빠른 시작 매뉴얼 (27 페이지), 사용자 설명서 (7 페이지), 설치 매뉴얼 (28 페이지)

페이지 인쇄

Site Preparation

Check the following:

• Site is capable of maintaining an ambient temperature of 32 to 104 degrees Fahrenheit

• Site power is available and adequate

• Cabling requirements (type, distance)

• Rack-mounting requirements (working space, proper airflow)

Site Environment

Warning

This unit is intended for installation in restricted access areas. A restricted access area can be accessed only

through the use of a special tool, lock and key, or other means of security. Statement 1017

Warning

This product requires short-circuit (overcurrent) protection, to be provided as part of the building installation.

Install only in accordance with national and local wiring regulations. Statement 1045

Temperature and Humidity Requirements

Table 1 lists the nominal operating and nonoperating environment requirements. Any measurements that approach the

minimum or maximum of a range indicate a potential problem.

Table 1

Operating and Nonoperating Environments

Specification

Temperature, ambient operating

Temperature, ambient nonoperating and storage

Humidity, ambient (nonconducting) operating

Humidity, ambient (noncondensing) nonoperating and storage

Altitude, operating and nonoperating

Vibration, operating

Vibration, nonoperating

Power Guidelines

Follow these precautions and recommendations when planning power connections to the Cisco uBR7246VXR router:

• Check the power at your site before installation and periodically after installation to ensure that you are receiving clean

power. Install a power conditioner if necessary.

• Provide proper grounding.

• Make sure that the frame ground is tied to a single building ground.

• Use a 6-AWG, copper ground conductor (minimum requirement) when attaching the chassis ground to a headend or other

interior ground system.

Warning

A readily accessible two-poled disconnect device must be incorporated in the fixed wiring. Statement 1022

Minimum

Maximum

32˚ F (0˚ C)

104˚ F (40˚ C)

-4˚ F (-20˚ C)

149˚ F (65˚ C)

10%

90%

95%

–197 ft (–60 m)

13,123 ft (4000 m)

—

5 to 200 Hz, 0.5 g (1 octet/min.)

—

5 to 200 Hz, 1 g (1 octet/min.)

200 to 500 Hz, 2 g (1 octet/min.)