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Exhibit 23.1
CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS
We consent to the reference to our firm under the Caption "Experts" in the
Registration Statement (Form S-3) and related Prospectus of Terayon
Communication Systems, Inc. for the registration of 534,487 shares of its common
stock and to the incorporation by reference therein of our reports dated January
17, 2000, with respect to the consolidated financial statements and schedule of
Terayon Communication Systems, Inc. included in its Annual Report (Form 10-K/A),
as amended on April 28, 2000 for the year ended December 31, 1999, filed with
the Securities and Exchange Commission.
/s/ Ernst & Young LLP
San Jose, California
January 10, 2001
