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Cisco 7204 Installation and Configuration Guide
OL-5101-02
Chapter2 Preparing for Installation Site Requirements
Preventive Site Configuration: Maintaining Normal Operation
Planning a proper location for the Cisco 7204 and the layout of your equipment rack or wiring closet are
essential for successful system operation. Equipment placed too close together or inadequately
ventilated can cause system overtemperature conditions. In addition, chassis panels made inaccessible
by poor equipment placement can make system maintenance difficult. Following are preca utions that can
help avoid problems during installation and ongoing operation.
General Precautions
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 pro vides warnings f or
high temperature and maximum and minimum voltages and create s rep orts on any o ccur renc es. I f
warning messages are displayed, take immediate action to identify the cause and correct the
problem.
•We recommend keeping the Cisco 7204 off the floor and out of any area that tends to collect dust.
•Follow ESD prevention procedures to avoid damage to equipment. Damage from sta tic disc ha rge
can cause immediate or intermittent equipment failure.
•Ensure that the network processing engine, I/O controller, port adapters, any blank port adapters,
power supplies, and any power supply filler plates are in place and secur e. T he fan s d irec t c ooli ng
air throughout the chassis interior; a loose component or em pty sl ot c an r ed ire ct the air f low away
from active components.
Table2-1 Specifications for Operating and Nonoperating Environments
Specification Minimum Maximum
Temperature, ambient operating 32°F (0°C) 104°F (40°C)
Temperature, ambient nonoperating and storage –4°F (–20°C) 149°F (65°C)
Humidity, ambient (noncondensing) operating 10% 90%
Humidity, ambient (noncondensing)
nonoperating and storage 5% 95%
Altitude, operating and nonoperating Sea level 10,000ft. (3050 m)
Vibration, operating 5–200 Hz, 0.5 g (1 oct./min.) –
Vibration, nonoperating 5–200 Hz, 1 g (1 oc t./min. )
200–500 Hz, 2 g (1 oct./min.) –