Cisco Systems OL-6256-17 manual Chassis Power System, Safety Guidelines

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

Front	Rear
	Fan
Air filter	Fan
Air enters
PLIM side	Power system

Air exits MSC and fabric card side

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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.

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

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