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                                                                     EXHIBIT 3.2


                             AMENDED AND RESTATED
                        CERTIFICATE OF INCORPORATION OF
                           CHORUM TECHNOLOGIES INC.
                            a Delaware corporation

                    (Pursuant to Sections 228, 242 and 245
                   of the Delaware General Corporation Law)


          Chorum Technologies Inc., a corporation organized and existing under
the General Corporation Law of the State of Delaware (the "General Corporation
Law")

          DOES HEREBY CERTIFY:

          FIRST:  That this corporation was originally incorporated on September
10, 1997, under the name Macro-Vision Communications, Inc., pursuant to the
General Corporation Law.

          SECOND:  That the Board of Directors duly adopted resolutions
proposing to amend and restate the Amended and Restated Certificate of
Incorporation of this corporation, declaring said amendment and restatement to
be advisable and in the best interests of this corporation and its stockholders,
and authorizing the appropriate officers of this corporation to solicit the
consent of the stockholders therefor, which resolution setting forth the
proposed amendment and restatement is as follows:

          "RESOLVED, that the Amended and Restated Certificate of Incorporation
of this corporation, as amended, be amended and restated in its entirety as
follows:

                                   ARTICLE I

          The name of the corporation is Chorum Technologies Inc.  (the
"Corporation").

                                  ARTICLE II

          The address of the registered office of this Corporation in the State
of Delaware is 15 East North Street, in the City of Dover, 19901, County of
Kent.  The name of its registered agent at such address is Incorporating
Services, Ltd.

                                  ARTICLE III

          The nature of the business or purposes to be conducted or promoted is
to engage in any lawful act or activity for which corporations may be organized
under the General Corporation Law of Delaware.

                                  ARTICLE IV

          The Corporation is authorized to issue two classes of stock, to be
designated common stock ("Common Stock") and preferred stock ("Preferred
Stock").  The number of
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shares of Common Stock authorized to be issued is one billion (1,000,000,000),
par value $0.0001 per share, and the number of Preferred Stock authorized to be
issued is 50 million ($ 50,000,000), par value $ 0.0001 per share.

          The Preferred Stock may be issued from time to time in one or more
series, without further stockholder approval.  The Board of Directors is hereby
authorized, in the resolution or resolutions adopted by the Board of Directors
providing for the issue of any wholly unissued series of Preferred Stock, within
the limitations and restrictions stated in this Amended and Restated
Certificate, to fix or alter the dividend rights, dividend rate, conversion
rights, voting rights, rights and terms of redemption (including sinking fund
provisions), the redemption price or prices, and the liquidation preferences of
any wholly unissued series of Preferred Stock, and the number of shares
constituting any such series and the designation thereof, or any of them, and to
increase or decrease the number of shares of any series subsequent to the issue
of shares of that series, but not below the number of shares of such series then
outstanding.  In case the number of shares of any series shall be so decreased,
the shares constituting such decrease shall resume the status that they had
prior to the adoption of the resolution originally fixing the number of shares
of such series.

                                   ARTICLE V

          Except as otherwise provided in this Amended and Restated Certificate
of Incorporation, in furtherance and not in limitation of the powers conferred
by statute, the Board of Directors is expressly authorized to make, repeal,
alter, amend and rescind any or all of the Bylaws of the Corporation.

                                  ARTICLE VI

          The number of directors of the Corporation shall be fixed from time to
time by a bylaw or amendment thereof duly adopted by the Board of Directors.

          The Board of Directors shall be and is divided into three classes,
Class I, Class II and Class III.  Such classes shall be as nearly equal in
number of directors as possible.  Each director shall serve for a term ending on
the third annual meeting following the annual meeting at which such director was
elected; provided, however, that the directors first elected to Class I shall
serve for a term ending on the annual meeting next following the end of fiscal
year 2001, the directors first elected to Class II shall serve for a term ending
on the annual meeting next following the end of fiscal year 2002, and the
directors first elected to Class III shall serve for a term ending on the annual
meeting next following the end of fiscal year 2003.  The foregoing
notwithstanding, each director shall serve until such director's successor shall
have been duly elected and qualified, unless such director shall resign, become
disqualified, disabled or shall otherwise be removed.

          At each annual election, directors chosen to succeed those whose terms
then expire shall be of the same class as the directors they succeed, unless by
reason of any intervening changes in the authorized number of directors, the
Board shall designate one or more

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directorships whose term then expires as directorships of another class in order
more nearly to achieve equality of number of directors among the classes.

          Notwithstanding the rule that the three classes shall be as nearly
equal in number of directors as possible, in the event of any change in the
authorized number of directors each director then continuing to serve as such
shall nevertheless continue as a director of the class of which the director is
a member until the expiration of the director's current term, or the director's
prior death, resignation or removal.  If any newly created directorship may,
consistently with the rule that the three classes shall be as nearly equal in
number of directors as possible, be allocated to either class, the Board shall
allocate it to that of the available class whose term of office is due to expire
at the earliest date following such allocation.

                                  ARTICLE VII

          Elections of directors need not be by written ballot unless the Bylaws
of the Corporation shall so provide.

                                 ARTICLE VIII

          Except as otherwise provided in this Amended and Restated Certificate
of Incorporation, any action required or permitted to be taken by the
stockholders of the Corporation must be effected at an annual or special meeting
of the stockholders of the Corporation, and may not be effected by any consent
in writing of such stockholders.

                                  ARTICLE IX

          An officer or director of the Corporation shall not be personally
liable to the Corporation or its stockholders for monetary damages for breach of
fiduciary duty as an officer or director, except for liability (i) for any
breach of the officer's or director's duty of loyalty to the Corporation or its
stockholders, (ii) for acts or omissions not in good faith or which involve
intentional misconduct or a knowing violation of law, (iii) under Section 174 of
the Delaware General Corporation Law, or (iv) for any transaction from which the
officer or director derived any improper personal benefit.  If the Delaware
General Corporation Law is amended after approval by the stockholders of this
Article to authorize corporate action further eliminating or limiting the
personal liability of officers and directors then the liability of an officer or
director of the Corporation shall be eliminated or limited to the fullest extent
permitted by the Delaware General Corporation Law as so amended.

          Any repeal or modification of the foregoing provisions of this Article
IX by the stockholders of the Corporation shall not adversely affect any right
or protection of an officer or director of the Corporation existing at the time
of, or increase the liability of any officer of director of this Corporation
with respect to any acts or omissions of such director occurring prior to, such
repeal or modification.

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                                   ARTICLE X

          In addition to any vote of the holders of any class or series of the
stock of this Corporation required by law or by this Amended and Restated
Certificate of Incorporation, the affirmative vote of the holders of a majority
of the voting power of all of the then outstanding shares of capital stock of
the Corporation entitled to vote generally in the election of directors, voting
together as a single class, shall be required to amend or repeal the provisions
of Article I, Article II, Article III and Article IV of this Amended and
Restated Certificate of Incorporation.  Notwithstanding any other provision of
this Amended and Restated Certificate of Incorporation or any provision of law
which might otherwise permit a lesser vote or no vote, but in addition to any
vote of the holders of any class or series of the stock of this Corporation
required by law or by this Amended and Restated Certificate of Incorporation,
the affirmative vote of the holders of at least two-thirds (66 2/3%) of the
voting power of all of the then outstanding shares of the capital stock of the
Corporation entitled to vote generally in the election of directors, voting
together as a single class, shall be required to amend or repeal any provision
of this Amended and Restated Certificate of Incorporation not specified in the
preceding sentence.

                                    * * * *

          THIRD:  The foregoing Amended and Restated Certificate of
Incorporation has been duly adopted by the Corporation's Board of Directors in
accordance with the applicable provisions of Section 245 of the General
Corporation Law of the State of Delaware.

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          IN WITNESS WHEREOF, the undersigned has signed this Amended and
Restated Certificate of Incorporation this ______ day of __________, 2001.



                              ____________________________________________
                              Scott Grout
                              Chief Executive Officer and President

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