Juniper PTX1000 Hardware Manual page 43

Copyright © 2018, Juniper Networks, Inc.
WARNING: For field-wiring connections, use copper conductors only.
WARNING: Power cables must not block access to PTX1000 components
or drape where people could trip over them.
CAUTION: You must ensure that power connections maintain the proper
polarity. The power source cables might be labeled
their polarity. There is no standard color coding for DC power cables. The
color coding used by the external DC power source at your site might be
different from the color coding for the leads on the DC power cable provided
with the chassis.
Chapter 1: Overview
and to indicate
(+) (–)
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