General Electrical Safety Guidelines And Warnings - Juniper MX960 Hardware Manual

MX960 3D Universal Edge Router Hardware Guide

General Electrical Safety Guidelines and Warnings

550
DC Power Grounding Requirements and Warning on page 556
DC Power Wiring Sequence Warning on page 557
DC Power Wiring Terminations Warning on page 559
Midplane Energy Hazard Warning on page 560
Multiple Power Supplies Disconnection Warning on page 560
Action to Take After an Electrical Accident on page 561
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) and require isolation from the exposed outside 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.
CAUTION: Before removing or installing components of a device, attach an
electrostatic discharge (ESD) grounding strap to an ESD point and place the
other end of the strap around your bare wrist. Failure to use an ESD grounding
strap could result in damage to the device.
Install the device in compliance with the following local, national, and international
electrical codes:
United States—National Fire Protection Association (NFPA 70), United States
National Electrical Code.
Other countries—International Electromechanical Commission (IEC) 60364, Part 1
through Part 7.
Evaluated to the TN power system.
Canada—Canadian Electrical Code, Part 1, CSA C22.1.
Locate the emergency power-off switch for the room in which you are working so that
if an electrical accident occurs, you can quickly turn off the power.
Make sure that grounding surfaces are cleaned and brought to a bright finish before
grounding connections are made.
Do not work alone if potentially hazardous conditions exist anywhere in your workspace.
Never assume that power is disconnected from a circuit. Always check the circuit before
starting to work.
Copyright © 2017, Juniper Networks, Inc.