Juniper ACX710 Quick Start Manual page 3

Rack Requirements for ACX710 Routers
The ACX710 routers are designed to be installed on four-post racks.
Table 1 provides the rack requirements and specifications for ACX710 routers.
Table 1: Rack Requirements for ACX710 Routers
Rack Requirement Guidelines
Rack type Use a four-post rack that provides bracket holes or hole patterns spaced at 1-U increments
(1.75 in. or 4.45 cm), and ensure that the rack meets the size and strength requirements to
support the weight of the router.
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.
Mounting bracket Ensure that the holes in the mounting brackets are spaced at 1 U (1.75 in. or 4.45 cm) so that
hole spacing the router can be mounted in any rack that provides holes spaced at that distance.
Rack size and
strength
Rack connection to
building structure
Ensure that the rack complies with the standards for a 19-in. rack as defined in Cabinets,
Racks, Panels, and Associated Equipment (document number EIA-310–D) published by the
Electronics Industry Association.
Use an 800-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 external dimensions
of the router chassis. The outer edges of the front-mounting brackets extend the width to
19 in. (48.26 cm).
Ensure that for four-post installations, the front and rear rack rails are spaced between
23.6 in. (60 cm) and 36 in. (91.4 cm) front-to-back.
Ensure that the rack is strong enough to support the weight of the router. A fully configured
ACX710 router weighs about 17.64 lb (8 kg).
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 and to the wall or floor brackets for maximum stability.
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