MX2020 Rack Requirements
IN THIS SECTION
Rack Size and Strength | 130
Spacing of Mounting Bracket Holes | 132
Connection to the Building Structure | 132
Rack Size and Strength
The MX2020 router is designed for installation in a rack that complies with either the following standards:
•
A 19-in. rack as defined in Cabinets, Racks, Panels, and Associated Equipment (document number EIA-310-D)
published by the Electronics Components Industry Association (http://www.ecianow.org/).
•
A 600-mm rack as defined in the four-part Equipment Engineering (EE); European telecommunications
standard for equipment practice (document numbers ETS 300 119-1 through 119-4) published by the
European Telecommunications Standards Institute (ETSI). The horizontal spacing between the rails in a
rack that complies with this standard is usually wider than the mounting brackets, which measure
19.2 in. (48.8 cm) from the outer edge to outer edge. Use approved wing devices to narrow the opening
between the rails as required.
•
A 23-in. rack using appropriate 23-in. to 19-in. rack adapters and an appropriate installation shelf which
supports the chassis at the correct vertical position to properly line up the rack mount holes. Juniper
Networks does not supply this hardware, but consideration for the size and weight of the chassis is
important for a safe installation.
The rack rails must be spaced widely enough to accommodate the chassis’s external dimensions:
78.75 in. (200 cm) high, 36.20 in. (91.95 cm) deep, and 19 in. (48.3 cm) wide. The outer edges of the
front-mounting flanges extend the width to 19.2 in. (48.8 cm), The spacing of rails and adjacent racks must
also allow for the clearances around the chassis and rack that are specified in “Clearance Requirements
for Airflow and Hardware Maintenance for the MX2020 Router” on page 133.
For instructions about installing the mounting hardware, see “Installing the MX2020 Mounting Hardware
for a Four-Post Rack or Cabinet” on page 239.
The weight and depth of the router depends on the type of cable management system installed.
With the standard or extended cable management system installed, use these guidelines:
130
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