said by gar187er:
so you bought a 602 but dont have the phone activated yet? where did you buy it from?
What he said. The first eMTAs that Comcast sold were TM722s through selected retailers. Even now, only the 722s and 822s are for sell at Best Buys. While Comcast did directly sell a few older devices to subs if they asked, they are few and far between. Probably not even half a percent of devices were sold through Comcast. They were NOT proactively sold. 99.999% of the models prior to the TM722 are property of a cable company and you're gonna run into issues.
But to answer your question, yes, you can have an eMTA and a modem. The modem will get the internet bootfile and the eMTA will be provisioned for CDV.