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 18.31 inches ± 0.06 inch (46.50 cm
± 0.15 cm).
Note
This figure shows an examples of typical 2-post and 4-post telco-type equipment racks.
Figure 14: Telco-Type Equipment Racks
Free-standing enclosed rack
with perforated sides and two
mounting posts in the front.
cFree-standing, 4-post open
rack with two mounting posts
in the front, two mounting
posts in the back or along each
side.
bTelco-style racka
Telco 2-Post Rack
Item a in Figure 14: Telco-Type Equipment Racks, on page 20 shows a telco-style rack. The telco-style rack
is an open frame consisting of two posts tied together by a cross-bar at the top and a floor stand at the bottom.
This type of rack is usually secured to the floor and sometimes to an overhead structure or wall for additional
stability. The router chassis can be installed in the telco-style rack only in a front-mounted position.
In the front-mounted position, you secure the chassis rack-mounting brackets directly to the rack posts (see
below figures). Two rear mounting brackets are provided for mounting the Cisco ASR 9010 Router in a 2-post
rack.
Use 2 post rack-mounting brackets and associated hardware to secure rear mounting bracket to sides of chassis
and back of 2 post rack.
Cisco ASR 9000 Series Aggregation Services Router Hardware Installation Guide
20
Preparing for Installation
Site Requirement Guidelines
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