e/Zenith Cable Modem

Information
has gloss	eng: Zenith Cable Modem is one of the first proprietary cable modems deployed at limited scale. There were 2 basic models, one operating at 500 Kbits/sec, the other at 4 Mbit/sec using BPSK and about a 25% alpha.
lexicalization	eng: Zenith Cable Modem
instance of	(noun) (from a combination of MOdulate and DEModulate) electronic equipment consisting of a device used to connect computers by a telephone line modem