Compliance Statements For Nebs - Juniper T4000 Quick Start Manual

T4000 Core Router Quick Start

Compliance Statements for NEBS

36
Read the installation instructions before you connect the router to a power source.
Before installing the router, read the guidelines for site preparation in the
Router Hardware Guide to make sure that the site meets power, environmental, and
clearance requirements for the router.
For the cooling system to function properly, the airflow around the chassis must be
unrestricted.
When installing the router, do not use a ramp inclined more than 10 degrees.
Manually installing the router requires four to lift the chassis. Before lifting the chassis,
remove components as described in the
injury, keep your back straight and lift with your legs, not your back. Do not attempt to
lift the chassis by the power supply handles.
The router should be mounted at the bottom of the rack if it is the only unit in the rack.
When mounting the router in a partially filled rack, load the rack from the bottom to
the top with the heaviest component at the bottom of the rack.
If the rack is provided with stabilizing devices, install the stabilizers before mounting
or servicing the router in the rack.
When removing or installing an electrical component, always place it component-side
up on a flat antistatic surface or in an electrostatic bag.
When you install the router, always make the ground connection first and disconnect
it last.
Wire the DC power supply using the appropriate lugs. When connecting power, the
proper wiring sequence is ground to ground, +RTN to +RTN, then –48 V to –48 V. When
disconnecting power, the proper wiring sequence is –48 V to –48 V, +RTN to +RTN,
then ground to ground. Always connect the ground wire first and disconnect it last.
Do not work on the system or connect or disconnect cables during electrical storms.
Before working on equipment that is connected to power lines, remove jewelry, including
rings, necklaces, and watches. Metal objects heat up when connected to power and
ground and can cause serious burns or become welded to the terminals.
Failure to observe these safety warnings can result in serious physical injury.
The equipment is suitable for installation as part of the Common Bonding Network
(CBN).
The equipment is suitable for installation in locations where the National Electrical
Code (NEC) applies.
The battery return connection is to be treated as an isolated DC return (DC-I), as defined
in GR-1089-CORE.
T4000 Core Router Hardware Guide
Copyright © 2012, Juniper Networks, Inc.
T4000 Core
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