Juniper MX2020 Hardware Manual page 156

MX2020 3D Universal Edge Router Hardware Guide
124
NOTE: For a complete list of individual line card and component weights
and measurements, see the
at http://www.juniper.net/techpubs/
For the cooling system to function properly, the airflow around the chassis must be
unrestricted. Allow at least 36 in. (91.44 cm) of clearance between front-to-rear-cooled
routers. Allow 2.8 in. (7 cm) between the side of the chassis and any non-heat-producing
surface such as a wall.
For service personnel to remove and install hardware components, there must be
adequate space at the front and back of the router. Allow at least 36 in. (91.44 cm) in
front of the router and 36 in. (91.44 cm) behind the router.
The rack or cabinet must have an adequate supply of cooling air.
Ensure that the cabinet allows the chassis hot exhaust air to exit from the cabinet
without recirculating into the router.
The router must have the front and rear shipping covers installed to help move the
router into the rack or cabinet.
The router must be installed into a rack or cabinet that is secured to the building
structure.
Ensure that there is adequate turn radius and aisle space for the router to be installed
into a rack or cabinet using a pallet jack with attachment.
Ensure that there is adequate turn radius and aisle space for the router to be installed
into a rack or cabinet using a router transport kit.
The cabinet must be clear of any hardware, device, rack, or cabinet component that
obstructs the 45 U rack space from being access during installation.
NOTE: There must be a minimum of 45-U of usable rack space when
installing the MX2020 router into a 45-U rack.
MX2020 3D Universal Edge Router Hardware Guide
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Copyright © 2015, Juniper Networks, Inc.