Table of Contents
Advertisement
Rack Size and Strength
The MX2008 router is designed for installation in a rack that complies with either of 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 (http://www.etsi.org). 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 that
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:
59.50 in. (151.1 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
for Airflow and Hardware Maintenance for the MX2008 Router" on page
cover on the front of the chassis is 36.20 in. (91.95 cm) deep. An extended cable manager extends the
depth to 40.15 in. (102 cm).
In an open-frame rack, center-mounting is required because the more even distribution of weight provides
greater stability. For center-mounting, you use the mounting brackets attached to the center of the chassis
for rack mounting (see
Figure 63 on page
For instructions about installing the mounting hardware, see
for a Four-Post Rack or Cabinet" on page
The weight and depth of the router depends on the type of cable manager installed.
With the standard or extended cable manager installed, use these guidelines:
The rack must have sufficient vertical usable space to accommodate the height of the router:
59.50 in. (151.1 cm). You can install one chassis in a rack. A typical four-post rack measures
84 in. (213.4 cm) high, 24 in. (61 cm) through 30 in. (76.2 cm) deep, and 19 in. (48.3 cm) wide (see
Figure 62 on page
201). A typical open-frame rack measures 84 in. (213.4 cm) high and 19 in. (48.3 cm)
wide.
202).
"Installing the MX2008 Mounting Hardware
241.
"Clearance Requirements
208. The cable manager and EMI
199
Advertisement
Table of Contents
