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Cisco ASR 1001-X Router Hardware Installation Guide
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Chapter 4 Cisco ASR 1001-X Router Installation
General Guidelines for Rack Installation
Rack-Mounting the Cisco ASR 1001-X Router
The Cisco ASR 1001-X Router can be installed in the following rack types:
• Two-post rack, either 19 inch or 23 inch. Inner clearance (the width between the inner sides of the
two posts or rails) must be at least 19 inches (48.26 cm). The height of the chassis is 3.47 inches
(8.8 cm). Airflow through the chassis is from front to back.
• Four-post, 19-inch equipment rack. Inner clearance (the width between the inner sides of the two
posts or rails) must be at least 19 inches (48.26 cm). The height of the chassis is 1.71 inches (43.43
mm). Airflow through the chassis is from front to back.
The Cisco ASR 1001-X Router can be installed with both front or rear rack-mount brackets.
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 Figure 4-1.
Figure 4-1 Verifying Equipment Rack Dimensions
Step 1 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 (46.5 cm ± 0.15 cm).
Note Measure for pairs of holes near the bottom, middle, and top of the equipment rack to ensure that
the rack posts are parallel.
Step 2 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 that is
17.25 inches (43.8 cm) wide and fits between the mounting posts on the rack.
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
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