Juniper Networks ERX Hardware 8 - Manual (Page 58)

ERX 8.0.x Hardware Guide
CAUTION: If you meet strong resistance when attempting to seat the module using
the ejectors, remove it from the chassis and confirm that the slot is designed to hold
the module. Then verify, if applicable, that the module matches its corresponding
module (I/O module or line module). Also, be sure that you have aligned the top
and bottom edges in the correct matching tracks.
CAUTION: Be sure to cover every empty slot with a blank filler panel to protect the
system from dust or other foreign substances and to ensure proper system cooling.
CAUTION: Do not discard the antistatic bag. When a module is not in use, store it
in an antistatic bag.
Order of Installation
Before you attempt to install or replace a line module (inserted in the front of
the chassis), make sure the corresponding I/O module (inserted in the rear of
the chassis) is already in place. The slot diagnostics run when a line module
is installed in a chassis slot. If the corresponding I/O module is not present, the
diagnostics fail, and you need to remove and reinsert the module.
Required Tools and Safety Items
You need the following tools to install a line module:
A Phillips screwdriver
An ESD wrist strap
Safety Guidelines
Before and during the installation process, observe the following precautions:
WARNING: Do not work on the system or connect or disconnect cables during
lightning activity.
40 Safety Guidelines