CHAPTER 19
Power and Electrical Safety Information
•
General Electrical Safety Guidelines and Warnings on page 157
•
Prevention of Electrostatic Discharge Damage on page 158
•
AC Power Electrical Safety Guidelines on page 160
•
AC Power Disconnection Warning on page 161
•
DC Power Electrical Safety Guidelines on page 162
•
DC Power Disconnection Warning on page 164
•
DC Power Grounding Requirements and Warning on page 166
•
DC Power Wiring Sequence Warning on page 167
•
DC Power Wiring Terminations Warning on page 168
•
TN Power Warning on page 170
•
Action to Take After an Electrical Accident on page 170
General Electrical Safety Guidelines and Warnings
This topic applies to hardware devices in the EX Series product family, which includes
switches and the XRE200 External Routing Engine.
This topic also applies to hardware devices in the QFX Series.
WARNING: Certain ports on the device are designed for use as intrabuilding
(within-the-building) interfaces only (Type 2 or Type 4 ports as described in
GR-1089-CORE,Issue 4) and requireisolation from the exposedoutside plant
(OSP) cabling. To comply with NEBS requirements and protect against
lightning surges and commercial power disturbances, the intrabuilding ports
must not be metallically connected to interfaces that connect to the OSP or
its wiring. The intrabuilding ports on the device are suitable for connection
to intrabuilding or unexposed wiring or cabling only. The addition of primary
protectors is not sufficient protection for connecting these interfaces
metallically to OSP wiring.
157Copyright © 2011, Juniper Networks, Inc.
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