Cisco ASR 5000 Процедура установки - Страница 5

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Installation Procedure Overview

• Pallet jack and/or chassis lift to move and position the ASR 5000 chassis. Without such mechanical

Site Prerequisites

This section summarizes power, grounding, environment, and clearance requirements that must be met prior

to installing and operating the ASR 5000. For detailed information, refer to the Technical Specifications

chapter.

Power and Grounding

Each PFU requires a power feed of 160A @ -48VDC (nominal). The feeds should be routed to the installation

rack from the site power supply using adequately sized conductors and circuit breakers in accordance with

local electrical codes.

The chassis must be grounded to a site ground point using the recommended conductors and lugs. The ground

point should be in close proximity to the ASR 5000 chassis to assure adequate conductivity.

Environment

The site's heating ventilation and air conditioning (HVAC) systems must be sized to maintain the operating

temperatures and relative humidity specified in the Technical Specifications chapter. HVAC capacity

requirements will vary based on the system configuration and associated power draw, as well as the operational

characteristics of other equipment installed at the site.

Clearance

Adequate clearance must be maintained at the front and rear of the ASR 5000 chassis to assure proper air

flow and allow maintenance access for the installation, removal and replacement of components. The

recommended clearance is 30 to 36 inches (76 to 92 centimeters) at the front and rear of the chassis.

Electro-Static Discharge (ESD) can cause serious damage to sensitive components on the chassis, its

sub-components, and/or the cards installed in the chassis. To prevent damage from ESD, you must take proper

grounding precautions before handling the chassis or any of its components.

To aid in the prevention of ESD damage, the chassis and its mounting brackets are equipped with ESD jacks.

Use the jacks in conjunction with grounding wrist straps when handling the chassis and/or its components.

The following figure shows the location of the jacks.

assistance, moving and positioning the chassis will require multiple craftpersons trained to safely handle

heavy rack-mounted units.

Site Prerequisites

ASR 5000 Installation Guide