General Electrical Safety Guidelines And Warnings - Juniper MX240 Hardware Manual

General Electrical Safety Guidelines and Warnings

WARNING:
(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:
electrostatic discharge (ESD) grounding strap to an ESD point and wrap and fasten 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.
Carefully look for possible hazards in your work area, such as moist floors, ungrounded power extension
cords, and missing safety grounds.
Certain ports on the device are designed for use as intrabuilding
Before removing or installing components of a device, connect an
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