Juniper Networks ERX Hardware 8 - Manual (Page 68)

ERX 8.0.x Hardware Guide
Figure 22: Installing a Redundancy Midplane
Redundancy
midplane
g013748
Installing the I/O Modules
To install the I/O modules in a redundancy group:
1. Install the redundancy I/O module in the lowest-numbered slot of the
redundancy group.
CAUTION: When setting up a redundancy group with line modules, be sure to install
the redundancy I/O module in the lowest-numbered slot of the redundancy group.
It is possible to install the redundancy I/O module in other slots; however, doing so
can damage other I/O modules connected to the redundancy midplane.
2. Install the corresponding I/O module for the line module of each slot in the
redundancy group. (See “Installing a Line Module or an I/O Module” on
page 44.)
3. Cable each module to provide a path to the remote interface. (See “Cabling
ERX Routers” on page 53.)
50 Installing Components for Line Module Redundancy