Juniper PTX5000 Hardware Manual page 193

• 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. Juniper recommends the use of single-sided panel
adapters of at least 10 U in height, using as many as needed to fully overlap the chassis rack mount
bracket for this type of installation.
The rack rails must be spaced widely enough to accommodate the chassis's external dimensions: 62.5 in.
(158.8 cm) high, 33.1 in. (84.1 cm) deep, and 17.5 in. (44.5 cm) wide. The outer edges of the mounting
brackets extend the width to 19 in. (48.3 cm). The front cable management system adds 3.8 in. (9.7 cm)
to the depth. If the front door is used, this adds 5.5 in. (14 cm) to the depth of the chassis. The rear cable
management system adds 5.5 in. (14 cm) to the depth of the chassis.
The spacing of rails and adjacent racks must also allow for the clearances around the chassis and rack
that are specified in "PTX5000 Clearance Requirements for Airflow and Hardware Maintenance" on
page 168.
For instructions about installing the mounting hardware, see
Hardware for a Four-Post Rack or Cabinet" on page
The chassis height of 62.5 in. (158.8 cm) high is approximately 35.7 U. A U is the standard rack unit
defined in Cabinets, Racks, Panels, and Associated Equipment (document number EIA-310-D) published
by the Electronics Industry Association. You can install one chassis in a rack that has at least 35.7 U of
usable vertical space.
The rack must be strong enough to support the weight of the fully configured PTX5000, up to about
1,200 lb (544.3 kg).
"Installing the PTX5000 Mounting
206.
175