Installation Checklist - Cisco ASR 903 Installation Instructions Manual

Installing the Cisco ASR 903 Router as a Satellite Shelf
Locating for Safety
If the Cisco ASR 903 Router as a satellite shelf 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, consult 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 at the front and back of the rack. This space ensures that you can remove
the Cisco ASR 903 Router as a satellite shelf components and perform routine maintenance and upgrades
easily.
Avoid installing the Cisco ASR 903 Router as a satellite shelf in a congested rack and consider how routing
of cables from other pieces of equipment in the same rack could affect access to the router cards.
The sides 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 inches (7.6 cm)
• Sides of the chassis—3 to 4 ft (91.44 cm to 121.92 cm)
To avoid problems during installation and ongoing operations, follow these general precautions when you
plan equipment locations and connections:
• Use the show environment all command regularly to check the internal system status. The environmental
• Keep the Cisco ASR 903 Router as a satellite shelf off the floor and out of areas that collect dust.
• Follow ESD-prevention procedures to avoid damage to equipment. Damage from static discharge can
Locating for Proper Airflow
Ensure that the Cisco ASR 903 Router as a satellite shelf has enough airflow to keep the system operating
within the environmental characteristics and the air temperature is sufficient to compensate for the heat
dissipated by the system. For more information, see the AirFlow Guidelines section.

Installation Checklist

To assist you with your installation and to provide a record of what was done by whom and when, photocopy
the Cisco ASR 903 Router installation checklist shown in this table. Use this to record the completion and
verification of each procedure. After the checklist is completed, place it in your site log along with the other
records pertaining to your new Cisco router.
monitor continually checks the interior chassis environment; it provides warnings about high temperature
and creates reports on other potentially dangerous occurrences. If warning messages are displayed, take
immediate action to identify the cause, and correct the problem.
cause immediate or intermittent equipment failure.
Cisco ASR 9000 Series Aggregation Services Router Satellite Systems Installation Guide
Installation Checklist
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