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Cisco ASR 1001-X Router Hardware Installation Guide
OL-32376-02
Chapter 3 Preparing Your Site for Installation
Site Planning
Note The Cisco ASR 1001-X Router should not be installed in an enclosed rack because the chassis requires
an unobstructed flow of cooling air to maintain acceptable operating temperatures for its internal
components. Installing the router in any type of enclosed rack—even with the front and back doors
removed—could disrupt the air flow, trap heat next to the chassis, and cause an overtemperature
condition inside the router. If you use an enclosed rack, make certain that there are air vents on all sides
of the rack and there is proper ventilation.
Guidelines for 23-in. (Telco) Racks
If needed, you can also install the Cisco ASR 1001-X Router in 23-in. (Telco) racks. For information on
the adapters needed for 23 in. racks, contact the Newton Instrument Company:
http://www.enewton.com
111 East A Street, Butner NC, USA, 27509
919 575-6426
Equipment Rack Guidelines
The placement of racks can affect personnel safety, system maintenance, and the system’s ability to
operate within the environmental characteristics described in Table 3-2. Choose a proper location for the
Cisco ASR 1001-X Router by following the guidelines below.
Locating for Safety
If the Cisco ASR 1001-X Router is the heaviest or the only piece of equipment in the rack, consider
installing it at or near the bottom to ensure that the rack’s center of gravity is as low as possible.
For additional information about the proper placement of electronic equipment, see the document
GR-63-CORE, Network Equipment Building System (NEBS) Requirements: Physical Protection.
Locating for Easy Maintenance
Keep at least 3 feet of clear space in front of and behind the rack. This space ensures that you can remove
the Cisco ASR 1001-X Router components and perform routine maintenance and upgrades easily.
Avoid installing the Cisco ASR 1001-X Router in a congested rack and consider how the routing of
cables from other pieces of equipment in the same rack might affect access to the routers cards.
The front and top of the chassis must remain unobstructed to ensure adequate airflow and prevent
overheating inside the chassis.
Allow the following clearances for normal system maintenance:
• At the top of the chassis—At least 3 in. (7.6 cm)
• In front of the chassis—3 to 4 ft (91.44 cm to 121.92 cm)
To avoid problems during installation and ongoing operation, follow these general precautions when you
plan the equipment locations and connections:
• Use the show environment all and the show facility-alarm status command regularly to check the
internal system status. The environmental monitor continually checks the interior chassis
environment; it provides warnings for high temperature and creates reports on any occurrences. If