Juniper PTX10008 Hardware Manual page 154

Table 51: Rack Requirements for the PTX10000 (continued)
Rack Requirement
Rack size and strength
Rack connection to building structure
PTX10000 Clearance Requirements for Airflow and Hardware Maintenance
When planning the site for a PTX10008 or a PTX10016 router installation, you must allow sufficient
clearance around the installed chassis for cooling and maintenance (see
Figure 69 on page 157for PTX10008. See
Guidelines
Ensure that the rack complies with the standards for a 19-in. wide
rack as defined in Cabinets, Racks, Panels, and Associated Equipment
(document number EIA-310–D) published by the Electronics Industry
Association.
Use one of the standard rack lengths 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).
23.62 in. (600 mm)
30.0 in. (762 mm)
31.5 in. (800 mm)
Ensure that the rack rails are spaced widely enough to accommodate
the router chassis' external dimensions. The outer edges of the flange
extend the chassis width to 19 in. (48.26 cm).
Ensure that the rack is strong enough to support the weight of the
router and cabling.
Ensure that the spacing of rails and adjacent racks allows for proper
clearance around the router and rack. See
Requirements for Airflow and Hardware Maintenance" on page
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 as well as wall or floor for maximum
stability.
Figure 70 on page 158 and
"PTX10000 Clearance
Figure 68 on page 157
Figure 71 on page 158 for PTX10016).
156
156.
and