Installation Guidelines

Before installing the systems in a rack, consider the following guidelines:

• You can install up to three E320 routers or six E120 routers in a single 7-ft. (2.1-m) rack. Installing multiple systems in a single rack enables you to maximize your available space.

  Caution: To maintain airflow requirements, a plenum must be installed above the E320 router before any piece of equipment (other than an E320 router) is installed above the router. This plenum is available from Juniper Networks. Plenums are not required when E320 routers are installed above one another because the router has a built-in plenum at the bottom. See Installation Guidelines and Requirements and Figure 34.

• Install heavier systems, such as an E320 router, on the bottom of the rack. Mount lighter systems higher in the rack.

Note: An optional mounting kit is available for mid-chassis mounting. Contact your Juniper Networks sales representative for more information.

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