Connection To Building Structure; Clearance Requirements For Airflow And Hardware Maintenance - Juniper M10i Hardware Manual

Connection to Building Structure

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Clearance Requirements for Airflow and Hardware Maintenance

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Always secure the rack to the structure of the building. If your geographical area is subject
to earthquakes, bolt the rack to the floor. For maximum stability, also secure the rack to
ceiling brackets. For more information, see "Installation Safety Warnings for M Series,
MX Series, and T Series Routers" on page 152.
M10i Router Site Preparation Checklist on page 39
Installing the M10i Router into a Rack on page 55
M10i Rack Size and Strength on page 41
When planning the installation site, you must allow sufficient clearance around the rack
(see Figure 20 on page 44):
For the cooling system to function properly, the airflow around the chassis must be
unrestricted. Figure 13 on page 28 depicts the airflow in the router. Allow at least 6 in.
(15.2 cm) of clearance between side-cooled routers. Allow 2.8 in. (7 cm) between
the side of the chassis and any non-heat-producing surface such as a wall.
NOTE: We recommend that you do not install the router in a cabinet. If you
mount the router in a cabinet, be sure that ventilation is sufficient to prevent
overheating.
For service personnel to remove and install hardware components, there must be
adequate space at the front and back of the router. At least 24 in. (61 cm) is required
both in front of and behind the router. NEBS GR-63 recommends that you allow at
least 30 in. (76.2 cm) in front of the rack and 24 in. (61 cm) behind the rack.
Chapter 4: Preparing the Site for M10i Router Installation
43