Cisco Systems 8-Slot User Manual download pdf (Page 30)

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Cisco CRS Carrier Routing System 8-Slot Line Card Chassis Installation Guide

OL-6256-17

Chapter 1 Cisco CRS Carrier Routing System 8-Slot Line Card Chassis Overview

Chassis Power System

Figure 1-9 Airflow Through 8-Slot Line Card Chassis

Chassis Power System

Two types of power systems are available for the Cisco CRS 8-slot line card chassis: fixed configuration

power and modular configuration power. Both power systems can be powered by either AC or DC power.

The chassis power system takes the facility power and converts it to the DC voltage necessary to power

chassis components.

For more information, refer to Chapter 2, “Installing and Removing Power Components.”

Safety Guidelines

Before you perform any procedure in this document, review the safety guidelines in this section to avoid

injuring yourself or damaging the equipment. The following guidelines are for your safety and to protect

equipment. The guidelines do not include all hazards. Be alert.

Note Review the safety warnings listed in Regulatory Compliance and Safety Information that are applicable

to your router before installing, configuring, or troubleshooting any installed card.

• Keep the work area clear and dust-free during and after installation. Do not allow dirt or debris to

enter into any laser-based components.

• Do not wear loose clothing, jewelry, or other items that could get caught in the router while working

with line cards, or their associated components.

• Cisco equipment operates safely when used in accordance with its specifications and product-usage

instructions.

• Be sure to power down a fixed configuration PDU or modular configuration power shelf before

removing it from the chassis.

122784

Fan

Air enters

PLIM side

Power system

Fan

Air exits MSC and

fabric card side

Front Rear

Air filter

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Cisco Systems 8-Slot User Manual Page 30