Juniper ACX5048 Hardware Manual page 87

Table 28: Rack Requirements for an ACX5000 Router (continued)
Rack Requirement
Rack size and strength (all
router models)
Rack connection to
building structure
SEE ALSO
Mounting an ACX5000 Router in a Rack or Cabinet | 103
Guidelines
Ensure that the rack complies with the standards for a 19-in. or 23-in. rack as defined
in Cabinets, Racks, Panels, and Associated Equipment (document number EIA-310–D)
published by the Electronics Industry Association.
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 device's mounting brackets, which measure 19 in. (48.26 cm)
from outer edge to outer edge. Use approved wing devices to narrow the opening
between the rails as required.
Ensure that the rack rails are spaced widely enough to accommodate the router chassis'
external dimensions. The outer edges of the front-mounting brackets extend the width
to 19 in. (48.26 cm).
For ACX5048 routers, space the front and rear rack rails between 23 in. (58.5 cm) and
30.25 in. (76.8 cm) front-to-back.
The rack must be strong enough to support the weight of the router.
Ensure that the spacing of rails and adjacent racks allows for proper clearance around
the router and rack.
Secure the rack to the building structure.
If earthquakes are a possibility in your geographical area, secure the rack to the floor.
Secure the rack to the ceiling brackets as well as wall or floor brackets for maximum
stability.
87