This paper is the culmination of research that describes the DOCSIS standard and related information for the purpose of explaining exactly how cable networks (@home, RoadRunner, Mediaone) are implemented from the service provider to the home. This includes details on the cryptography used, the frequencies data is transmitted on, and hardware explanations. A recommended read for anyone interested in cable-modem networks.
You can download it from the following link: https://packetstormsecurity.com/files/download/22910/cable.html
Source: https://packetstormsecurity.com/files/22910/cable.html.html