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.)
3. Cable each module to provide a path to the remote interface. (See Cabling ERX Routers.)

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