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CiscoASR 9000 Series Aggregation Services Router Hardware Installation Guide
Chapter1 Preparing for Installation
Site Requirement Guidelines
Rack-Mounting and Air Flow Clearance Guidelines
The Cisco ASR 9010 Router, Cisco ASR 9006 Router, and Cisco ASR 9904 Router c an be installed in
most 2-post, 4-post, or telco-style 19-inch equipment racks that comply with the Electronics Industries
Association (EIA) standard for equipment racks (EIA-310-D).
Note The Cisco ASR 9922 Router and Cisco ASR 9912 Router can be mounted only in a 4-post rack. The rack
must have at least two posts with mounting flanges to mount the router chassis. The distance between
the center lines of the mounting holes on the two mounting posts must be 18.31inches ± 0.06 inch
(46.50 cm ± 0.15 cm).
Figure 1-17 shows an examples of typical 2-post and 4-post telco-type equipment racks.
Figure1-17 Telco-Type Equipment Racks
aTelco -
style
rack
bFree-standing, 4-post open rack with
two mounting posts in the front, two
mounting posts in the back or along each
side.
cFree-standing enclosed rack with
perforated sides and two mounting posts
in the front.
243453
ab c