Dc System Redundancy; Safety Requirements, Warnings, And Guidelines - Juniper M10i Hardware Manual

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
Installation"
Compliance Information"
Warnings"
with electrical equipment is beyond the scope of this manual.
on page 41. For a list of safety warnings, see
on page 135 and particularly
on page 142. However, providing an exhaustive set of guidelines for working
Chapter 1: System Overview
"Preparing for Router
"Safety and Regulatory
"Electrical Safety Guidelines and
Safety Requirements, Warnings, and Guidelines
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