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Cisco uBR904 Cable Modem Installation and Configuration Guide
2-10
Figure 2-1 Cisco uBR904 Cable Modem Footprint and Outer Dimensions
Site Environment
Table 2-1 lists the operating and nonoperating environmental site requirements. The
following ranges are those within which the Cisco uBR904 cable modem will continue to
operate; however, a measurement that is approaching the minimum or maximum of a range
indicates a potential problem. You can maintain normal operation by anticipating and
correcting environmental anomalies before they approach a maximum operating range.
• Operating temperature range: 32° though 114°F (0° through 40°C).
• Operating humidity range: 5 to 95%, noncondensing.
• Airflow: Keep the back, sides, and bottom of the Cisco uBR904 cable modem clear of
obstructions and away from the exhaust of other equipment.
Caution To prevent chassis overheating, never install the Cisco uBR904 cable modem
in an enclosed rack or room that is not properly ventilated or air conditioned.
11615
2.30 i
n.
9.50 in.
Cisco uBR900
SERIES
13.30 in.