Cisco Systems UBR904 manual Site Requirements, CISPR 22 Requirements

CISPR 22 Requirements

particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

•Reorient or relocate the receiving antenna.

•Increase the separation between the equipment and receiver.

•Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

•Consult the dealer or an experienced radio/TV technician for help.

Note If the system contains several subsystems/cards then the warning notice has only to appear in the main control systems user manual/guide.

CISPR 22 Requirements

Specifications covered:

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EN55022:1994 - EU requirements

AS/NZS 3548:1995 - Australia

Site Requirements

To assure normal operation and avoid unnecessary maintenance, plan your site configuration and prepare your site before installation. After installation, make sure the site maintains an ambient temperature of 23° to 113°F (-5° to 45°C), and keep the area around the chassis as free from dust as is practical.

The following sections address the site environment requirements for the Cisco uBR904 cable modem.

Preparing for Installation 2-5