Cisco 7200 VXR Series Посібник - Сторінка 4
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Site Requirement Guidelines
Figure 2-1
2
1
Chassis rear (power supply)
2
Exhaust air
The left and right sides of the chassis must remain unobstructed to ensure adequate air flow and prevent
overheating inside the chassis; we recommend at least 3 in. (7.62 cm) of clearance.
Follow these general precautions when planning your equipment locations and connections:
•
Use the show environment command regularly to check the internal system status. The
environmental monitor continually checks the interior chassis environment; it provides warnings for
high temperature and maximum and minimum voltages and creates reports on any occurrences. If
warning messages are displayed, take immediate action to identify the cause and correct the
problem.
We recommend keeping Cisco 7200 VXR routers off the floor and out of any area that tends to
•
collect dust.
Follow ESD prevention procedures to avoid damage to equipment. Damage from static discharge
•
can cause immediate or intermittent equipment failure.
Ensure that the network processing engine or network services engine, I/O controller, port adapters,
•
any blank port adapters, Port Adapter Jacket Card, power supplies, and any power supply filler
plates are in place and secure. The fans direct cooling air throughout the chassis interior; a loose
component or empty slot can redirect the air flow away from active components.
The following sections address the site environment requirements for the Cisco 7200 VXR routers.
Cisco 7200 VXR Installation and Configuration Guide
2-4
Internal Airflow—Top View
1
4
Chapter 2
3
Inlet airflow
4
Chassis front (port adapters)
Preparing for Installation
3
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