Juniper M7i Hardware Manual page 105

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Copyright © 2019, Juniper Networks, Inc.
NOTE: We recommend that you provision at least 13.5 A @ 48 VDC and
use a facility circuit breaker rated for 15 A minimum. Doing so enables you
to operate the router in any configuration without upgrading the power
infrastructure, and allows the router to function at full capacity using
multiple power supplies.
M7i Router AC Power Supply Specifications on page 85
M7i Router DC Power Supply Specifications on page 87
General Electrical Safety Warnings for Juniper Networks Devices on page 250
Chapter 9: Preparation Overview
81