Preparing The Equipment Racks; Installing The Router - Juniper E SERIES BROADBAND SERVICES ROUTERS 11.3.X - ERX HARDWARE GUIDE REV 26-9-2010 Hardware Manual

ERX 11.3.x Hardware Guide

Preparing the Equipment Racks

Installing the Router

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CAUTION: Evaluate the overall loading of the branch circuit before you install
any equipment into a rack.
WARNING: Connect the router or rack to ground (earth), and ensure that a
reliable grounding path is maintained in the rack.
WARNING: Do not work on the system or connect or disconnect cables during
lightning activity.
WARNING: Be sure circuit breakers for the power source are in the OFF
position before attaching power cables.
WARNING: Before servicing the router, turn off the power.
WARNING: Remove jewelry (including rings, necklaces, and watches) before
working on equipment that is connected to power lines. Metal objects heat
up when connected to power and ground and can cause serious burns or
become welded to the terminals.
WARNING: Do not insert any metal object, such as a screwdriver, into an
open slot or the backplane. Doing so can cause electric shock and serious
burns.
WARNING: The ERX310 router AC model has more than one power-supply
cord. Disconnect two power cords before servicing to avoid electric shock.
Following your installation plan, use a tape measure and marking pen to measure and
mark space on each equipment rack for each router component. For horizontal spacing,
follow Network Equipment Building System (NEBS) requirements. If you choose not to
install a plenum, be sure to include 2 U of space between each chassis for proper exhaust.
A plenum, however, is highly recommended.
To complete the installation of the router in a rack, you need:
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