Rack-Mounting Considerations
Cisco AS5800 Universal Access Server Hardware Installation Guide2-20
Site Specifications
Table2-1 lists the operating and nonoperating environmental site requirements. The following
ranges are those within which the access server 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 the maximum operating range.
Airflow to cool the access server is from front to b ac k in the dial shelf chassis and from right to left
in the router shelf chassis (when viewing the router from the front). Adhere to all spacing
requirements for proper airflow maintenance.
Preventive Site Configura tion: Maintaining Normal Operation
Planning a proper location for the access server and the layout of your equipment rack or wiring
closet are essential for successful system operation. Equipment placed too close together or
ventilated inadequately can cause system overtemperature conditions. In addition, chassis panels
made inaccessible by poor equipment placement impair system maintenance.
Follow these precautions and recommendations when planning power connections to the Cisco
AS5800:
•Check the power at your site before installation and periodically after installation to ensure that
you are receiving clean power. Install a power conditioner if necessary.
•Install proper grounding to avoid damage from lightning and power surges.
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 10,000 ft (3050 m)
Vibration, operating 5–200 Hz, 0.5 g (1 oct./min.) –
Vibration, nonoperating 5–200 Hz, 1 g (1 oct./min.)
200–500Hz,2g(1oct./min.) –
Clearance, air intake and exhaust 24 in. (60.95 cm) –