Terayon's Modem Systems Operate in Unused Roll-off Region of Cable Networks
ORLANDO, Fla.--(BUSINESS WIRE)--May 25, 1999--Terayon Communication
Systems, Inc. (Nasdaq:TERN - news) today demonstrated its cable modem
system operating in the roll-off region of a cable network - the portion of
a cable network generally unused for cable operations.
The demonstration was made at the Society of Cable Telecommunications
Engineers' Cable-Tec Expo '99, taking place here this week. By utilizing
the roll-off region in the downstream portion of their networks, cable
operators can provide Internet access and other data and telephony services
without sacrificing the bandwidth for video channels or other services.
The ability for Terayon's S-CDMA (Synchronous Code Division Multiple
Access) based cable modems to operate in the roll-off region is made
possible by the receive equalizers built into each modem. These equalizers
compensate for the signal loss inherent in the roll-off, and can work in up
to 14 db of tilt per 6 MHz channel. In a 550 MHz cable system, for example,
Terayon's cable modem system can reliably deliver raw data at rates of 14
Mbps, while operating in the roll-off region.
''The ability of our S-CDMA-based cable modem system to operate in unused
spectrum helps operators use their systems to the fullest,'' explained
Shlomo Rakib, Terayon's president and chief technology officer. ''Operators
must maximize the capacity of their systems as they deliver new and more
demanding broadband services.''
Terayon systems are deployed by leading North American cable operators,
including Cablevision Systems, Rogers Cablesystems, Shaw Communications and
TCA Cable TV, as well as by major cable operators in Europe, Asia and Latin
America.
Terayon's cable modems have the high capacity and reliability to support a
broad range of residential and commercial data services across cable
plants, ranging from all-coaxial systems to hybrid fiber/coax (HFC).
Terayon's systems incorporate sophisticated Quality of Service (QoS)
capability, allowing control of bandwidth in precise increments. This
allows broadband service providers to offer tiered services to their
subscribers -- from residential Internet access to business services for
data and telephony. Terayon's cable modem systems, based on S-CDMA
technology, provide reliable two-way performance over the broadest range of
cable systems. In addition, the high reliability of Terayon's S-CDMA
technology provides cable operators with lower operating and maintenance
costs. |
