1

EXHIBIT 23.1





                        Consent of Independent Auditors


We  consent  to  the incorporation  by  reference  in  the registration
Statements pertaining to the  Telco Systems, Inc. 1983 Employee Stock  Purchase
Plan (Form S-8 No. 33-26976);  the Telco Systems,  Inc. 1980 Stock Option  Plan
(Form S-8  Nos. 2- 94474,  33-2024 and  33-10548); the  Telco Systems,  Inc.
1988  Non-Statutory Stock Option Plan (Form  S-8 No. 33-28295) and  the 1990
Stock Option Plan  (Form S-8 No.  33-42751) of  our report dated October  12,
1995, with respect  to the consolidated financial statements  and schedules of
Telco  Systems, Inc. included in  the Annual Report (Form 10-k) for the year
ended August 27, 1995.



                                                               ERNST & YOUNG LLP



Boston, Massachusetts
November 16, 1995