Juniper Networks M10i manual DC System Redundancy, Safety Requirements, Warnings, and Guidelines

Chapter 1: System Overview

DC System Redundancy

DC system redundancy requires two power sources from feed A and two power sources from feed B. If one feed fails or is shut down for service, the other feed powers two DC power supplies and can provide full power to the router's components indefinitely.

Safety Requirements, Warnings, and Guidelines

To avoid harm to yourself or the router as you install and maintain it, you need to follow the guidelines for working with and near electrical equipment, as well as the safety procedures for working with Internet routers. For a discussion of how to make the installation site a safe environment, see “Preparing for Router

Installation” on page 41. For a list of safety warnings, see “Safety and Regulatory Compliance Information” on page 135 and particularly “Electrical Safety Guidelines and Warnings” on page 142. However, providing an exhaustive set of guidelines for working with electrical equipment is beyond the scope of this manual.

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