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Cisco ASR 9001 and Cisco ASR 9001-S Routers Hardware Installation Guide
Chapter2 Unpacking and Installing the Chassis
Installing the Cisco ASR 9001 Chassis
Verifying Rack Dimensions
Before you install the chassis, measure the space between the vertical mounting flanges (rails) on your
equipment rack to verify that the rack conforms to the measurements shown in Figure2-2.
Step1 Mark and measure the distance between two holes on the left and right mounting rails.
The distance should measure 18.31 inches ± 0.06 inches (46.5cm ± 0.15 cm).
Note Measure the distance for pairs of holes near the bottom, middle and top of the equipment rack
to ensure that the rack posts are parallel.
Step2 Measure the space between the inner edges of the left front and right front mounting flanges on the
equipment rack.
The space must be at least 17.7 inches (45 cm) to accommodate the chassis, which is approximately
17.45 in. (44.32 cm) wide, and fits between the mounting posts on the rack.
Figure2-2 Verifying Equipment Rack Dimensions
Minimum usable
aperture 17.7 inches
(45.0 cm)
Hole centerline
to hole centerline
18.31 inches ± 0.06 inches
(46.5 cm ± 0.15 cm)
Mounting flanges
247170