Preventive Site Configuration: Maintaining Normal Operation
Table | Specifications for Operating and Nonoperating Environments |
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Specification |
| Minimum | Maximum |
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Temperature, ambient operating | 32°F (0°C) | 114°F (40°C) | |
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Temperature, ambient nonoperating and storage | 95°F (70°C) | ||
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Humidity, ambient (noncondensing) operating | 5% | 95% | |
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Humidity, ambient (noncondensing) nonoperating and | 5% | 95% | |
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Altitude, operating and nonoperating | Sea level | 10,000 ft (3,050 m) | |
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Vibration, operating | 10 to 200 Hz, 0.0005 g (1 oct./min.) | – | |
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Vibration, nonoperating | 10 to 100 Hz, 0.0065 g (1 oct./min.) | – | |
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Preventive Site Configuration: Maintaining Normal Operation
Planning a proper location for the Cisco uBR904 cable modem is essential for successful system operation. Equipment placed too close together or inadequately ventilated can cause system overtemperature conditions. In addition, poor equipment placement can make system maintenance difficult. Following are precautions that can help avoid problems during installation and ongoing operation.
General Precautions
Follow these general precautions when planning your equipment locations and connections:
•We recommend keeping the Cisco uBR904 cable modem 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.
Preparing for Installation
