Juniper Networks ERX-700, ERX-1410, ERX-1440, ERX-705 manual Installing the I/O Modules

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CHAPTER 3

Installing ERX Modules

7Carefully insert an I/O module in one slot to ensure that the redundancy midplane is aligned correctly; then tighten the screws.

A misaligned redundancy midplane can result in bent pins on the boards and poor contact between the I/O modules and the redundancy midplane.

Chassis midplane

Redundancy midplane

Power input module Power switches

Figure 3-11Installing a redundancy midplane

Installing the I/O Modules

To install the I/O modules in a redundancy group:

1Install 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 may damage other I/O modules connected to the redundancy midplane.

2Install the corresponding I/O module for the line module of each slot in the redundancy group. (See Installing a Line or I/O Module, earlier in this chapter.)