said by Matt :

DOCSIS 1 can't do 10Mbps to an individual cable modem unless they put an individual cable modem on its own node. The maximum the Business Class folks even offer over a cable modem is 2Mbps here. If you want more upstream you have to purchase fiber from them.

said by halfband :

Docsis 1 is 10Mbps per channel. There can be multiple channels on a node. The channels are further split by slots, but of course that gets into shared bandwidth.