## Exhibit 3-a

# ARTICLES OF
INCORPORATIONOFADC
TELECOMMUNICATIONS, INC.*

1.
The name of this corporation shall be ADC Telecommunications, Inc.

2. The
address of the registered office of this corporation in Minnesota is 13625
Technology Drive, Eden Prairie, Minnesota 55344.

3.
The aggregate number of shares which this corporation shall have authority to
issue is 352,857,142 shares divided into 342,857,142 shares of Common Stock, par
value $.20 per share, and 10,000,000 shares of Preferred Stock, no par value.

| | (a)
Common Stock. The holders of the Common Stock shall be entitled to
receive, when and as declared by the Board of Directors, out of earnings or
surplus legally available therefor, dividends payable either in cash, in
property or in shares of the capital stock of the corporation. Each holder of
record of the Common Stock shall have one vote for each share of Common Stock
registered in his name on the books of the corporation and entitled to vote. The
Common Stock shall have no special powers, preferences or rights, or
qualifications, limitations or restrictions thereof.
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| | (b)
Preferred Stock. Shares of Preferred Stock may be issued from time to
time in one or more series as the Board of Directors may determine, as
hereinafter provided. The Board of Directors is hereby authorized, by resolution
or resolutions, to provide from time to time for series of Preferred Stock out
of the shares of Preferred Stock not then allocated to any series of Preferred
Stock. Before any shares of any such series of Preferred Stock are issued, the
Board of Directors shall fix and determine, and is hereby expressly empowered to
fix and determine, by resolution or resolutions, the designations, powers,
preferences and relative, participating, optional and other special rights, and
the qualifications, limitations and restrictions thereof, of the shares of such
series, including, without limiting the generality of the foregoing, any of the
following provisions with respect to which the Board of Directors shall
determine to make affirmative provision:
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| | (i)
The designation and name of such series and the number of shares that shall
constitute such series;
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| | (ii)
The annual dividend rate or rates payable on shares of such series, the date or
dates from which such dividends shall commence to accrue and the dividend
payment dates for such dividends;
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| | (iii)
Whether dividends on such series are to be cumulative or noncumulative, and the
participating or other special rights, if any, with respect to the payment of
dividends;
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| | (iv)
Whether such series shall be subject to redemption and, if so, the manner of
redemption, the redemption price or prices and the terms and conditions on which
shares of such series may be redeemed;
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| | (v)
Whether such series shall have a sinking fund or other retirement provisions for
the redemption or purchase of shares of such series and, if so, the terms and
amount of such sinking fund and other retirement provisions and the extent to
which the charges therefor are to have priority over the payment of dividends
on, or the making of sinking fund or other like retirement provisions for,
shares of any other series or over dividends on the Common Stock;
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| | (vi)
The amounts payable on shares of such series on voluntary or involuntary
dissolution, liquidation or winding up of the affairs of the corporation and the
extent to which such payment shall have priority over the payment of any amount
on voluntary or involuntary dissolution, liquidation or winding up of the
affairs of the corporation and the extent to which such payment shall have
priority over the payment of any amount on voluntary or involuntary dissolution,
liquidation or winding up of affairs of the corporation, on shares of any other
series or on the Common Stock;
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| | (vii)
The terms and conditions, if any, on which shares of such series may be
converted into, or exchanged for, shares of any other series or the Common
Stock;
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| | (viii)
The extent of the voting power, if any, of the shares of such series;
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| | (ix)
The stated value, if any, for the shares of such series, the consideration for
which shares of such series may be issued and the amount of such consideration
that shall be credited to the capital account; and
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| | (x)      Any other preferences and relative,  participating,  optional or other special rights,  and  qualifications,
limitations or restrictions thereof, of the share of such series.
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| | The
Board of Directors is expressly authorized to vary the provision relating to the
foregoing matters among the various series of Preferred Stock.
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| | All
shares of the Preferred Stock of any one series shall be identical in all
respects with all other shares of such series, except that shares of any one
series issued at different times may differ as to the dates from which dividends
thereon shall be payable and, if cumulative, shall cumulate.
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| | Shares
of any series of Preferred Stock that shall be issued and thereafter acquired by
the corporation through purchase, redemption (whether through the operation of a
sinking fund or otherwise), conversion, exchange or otherwise, shall upon
appropriate filing and recording to the extent required by law, have the status
of authorized and unissued shares of Preferred Stock and may be reissued as part
of such series or as part of any other series of Preferred Stock. Unless
otherwise provided in the resolution or resolutions of the Board of Directors
providing for the issue thereof, the number of authorized shares of stock of any
series of Preferred Stock may be increased or decreased (but not below the
number of shares thereof then outstanding) by resolution or
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resolutions of the  Board of
Directors and appropriate filing and recording to the extent required  by law. In case
the number of shares of any such series of Preferred Stock shall  be decreased, the
shares representing such decrease shall, unless otherwise  provided in the resolution or
resolutions of the Board of Directors providing  for the issuance thereof, resume the
status of authorized but unissued shares of  Preferred Stock undesignated as to series.

4.
The shareholders of this corporation:

| | (a)
shall have no pre-emptive rights to subscribe to any issue of shares of any
class of this corporation now or hereafter made; and
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| | (b)
shall have no right to cumulate votes in the election of directors.
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5.1 Whether
or not a vote of shareholders is otherwise required, the affirmative vote of the
holders of not less than 80 percent of the outstanding shares of Voting
Stock (as hereinafter defined) of the corporation shall be required for
the approval of any Business Combination (as hereinafter defined)
with any Related Person (as hereinafter defined) involving the
corporation or the approval or authorization by the corporation in its capacity
as a shareholder of any Business Combination involving a Subsidiary
(as hereinafter defined) which requires the approval or authorization of the
shareholders of the Subsidiary; provided, however, that the 80 percent voting
requirement shall not be applicable if:

| | (a)
The Continuing Directors (as hereinafter defined) by a majority vote
have expressly approved the Business Combination; or
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| | (b)
The Business Combination is a merger, consolidation, exchange of shares or sale
of all or substantially all of the assets of the corporation and the cash or
fair market value of the property, securities or other consideration to be
received per share by holders of common stock of the corporation other than the
Related Person is not less than the highest per share price (with appropriate
adjustments for recapitalizations, stock splits, stock dividends and like
distributions), paid by the Related Person in acquiring any of its holdings of
the corporations common stock.
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5.2
For the purpose of this Article 5:

| | (a) The
term Business Combination shall mean:
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| | (i)
any merger or consolidation of the corporation or a Subsidiary with or into a
Related Person;
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| | (ii)
any exchange of shares of the corporation or a Subsidiary for shares of a
Related Person which, in the absence of this Article, would have required the
affirmative vote of at least a majority of the voting power of the outstanding
shares of the corporation entitled to vote or the affirmative vote of the
corporation, in its capacity as a shareholder of the Subsidiary;
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| | (iii)
any sale, lease, exchange, transfer or other disposition (in one transaction or
in a series of transactions), including without limitation a mortgage or any
other security device, of all or any Substantial Part (as
hereinafter defined) of the assets either of the corporation (including
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| | without
limitation any voting securities of a Subsidiary) or of a Subsidiary, to or with
a Related Person;
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| | (iv)
any sale, lease, exchange, transfer or other disposition (in one transaction or
a series of transactions) of all or any Substantial Part of the assets of a
Related Person to or with the corporation or a Subsidiary;
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| | (v)
the issuance to a Related Person of any securities (except pursuant to stock
dividends, stock splits or similar transactions which would not have the effect
of increasing the proportionate voting power of a Related Person) of the
corporation or of a Subsidiary (except pursuant to a pro rata distribution to
all holders of common stock of the corporation);
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| | (vi)
any recapitalization or reclassification that would have the effect of
increasing the voting power of a Related Person; and
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| | (vii)
any agreement, contract or other arrangement providing for any of the
transactions described in this definition of Business Combination.
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| | (b)
The term Related Person shall mean and include any individual,
corporation, partnership or other person or entity which, together with its
Affiliates and Associates (as defined on January 16,
1984 by Rule 12b-2 under the Securities Exchange Act of 1934),
Beneficially Owns (as defined on January 16, 1984 by Rule 13d-3
under the Securities Exchange Act of 1934) in the aggregate 15 percent or more
of the outstanding Voting Stock of the corporation, and any Affiliate or
Associate (other than the corporation, or a wholly-owned subsidiary of the
corporation) of any such individual, corporation, partnership or other person or
entity.
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| | (c)
The term Substantial Part shall mean more than 30 percent of the
fair market value of the total assets of the corporation in question, as of the
end of its most recent fiscal year ending prior to the time the determination is
being made.
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| | (d)
Without limitation, any shares of common stock of the corporation that any
Related Person has the right to acquire pursuant to any agreement, or upon
exercise of conversion rights, warrants or options, or otherwise, shall be
deemed beneficially owned by the Related Person.
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| | (e)
The term Subsidiary shall mean any corporation, a majority of the
equity securities of any class of which are owned by the corporation, by another
Subsidiary, or in the aggregate by the corporation and one or more of its
Subsidiaries.
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| | (f)
The term Voting Stock shall mean all outstanding shares of capital
stock of the corporation entitled to vote generally in the election of directors
and each reference to a proportion of shares of Voting Stock shall refer to such
proportion of the votes entitled to be cast by such shares.
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| | (g)
The term Continuing Director shall mean (i) a director who was a
member of the Board of Directors of the corporation either on January 16, 1984
or immediately prior to the time that any Related Person involved in the
Business Combination in question became a Related Person or (ii) any person
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| | becoming a director whose election, or nomination for election by the
corporations shareholders, was approved by a vote of a majority of the
Continuing Directors; provided, however, that in no event shall a Related Person
involved in the Business Combination in question be deemed to be a Continuing
Director.
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5.3
For the purposes of this Article 5 the Continuing Directors by a majority vote
shall have the power to make a good faith determination, on the basis of
information known to them of: (i) the number of shares of Voting Stock of the
corporation that any person or entity Beneficially Owns; (ii) whether a person
or entity is an Affiliate or Associate of another; (iii) whether the assets
subject to any Business Combination constitute a Substantial Part; (iv) whether
any business transaction is one in which a Related Person has an interest; (v)
whether the cash or fair market value of the property, securities or other
consideration to be received per share by holders of common stock of the
corporation other than the Related Person in a Business Combination is an amount
at least equal to the highest per share price paid by the Related Person; and
(vi) such other matters with respect to which a determination is required under
this Article 5.

5.4
The provisions set forth in this Article 5 may not be repealed or amended in any
respect, unless such action is approved by the affirmative vote of the holders
of not less than 80 percent of the outstanding shares of Voting Stock of this
corporation.

6.1
The number of directors may be increased or decreased from time to time by a
resolution adopted by the holders of at least 80 percent of the shares of
outstanding Voting Stock (as defined in Article 5 hereof) of the
corporation entitled to vote (unless the proposed increase or decrease has been
expressly approved by a majority vote of all members of the Board of Directors
in which case such an increase or decrease shall be approved by the holders of a
majority of the shares of outstanding Voting Stock of the corporation) or such
number may be increased by the majority vote of all members of the Board of
Directors. The directors shall be divided into three classes as equal in number
as possible.

At
each regular meeting of the shareholders following the 1984 regular
shareholders meeting (at which meeting the directors were divided into
three classes with directors in the first class, second class and third class
elected to serve until the regular meetings of shareholders held in 1985, 1986
and 1987, respectively), each director elected to succeed a director whose term
has expired shall hold office until the third succeeding regular meeting of the
shareholders after such directors election and until such directors
successors have been duly elected and qualified, or until the earlier death,
resignation, removal or disqualification of such director. In case of any
increase or decrease in the number of directors, the increase or decrease shall
be distributed among the several classes as equally as possible as shall be
determined by a majority vote of all members of the Board of Directors or by the
holders of at least 80 percent of the shares of outstanding Voting Stock of the
corporation.

6.2
Vacancies in the Board of Directors of this corporation occurring by reason of
death, resignation, removal or disqualification shall be filled for the
unexpired term by a majority of the remaining directors, even though less than a
quorum. Vacancies resulting from newly created directorships resulting from an
increase in the authorized number of directors by action of the Board of
Directors may be filled by a majority vote of the remaining directors. Each
director elected to fill a vacancy shall hold office until a qualified successor
is elected by the shareholders at their next

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regular meeting. At such next
regular meeting the shareholders shall elect a director to fill the remainder of  any
unexpired term for which a director has been elected to fill a vacancy by  the Board of
Directors.

6.3
Any or all of the directors may be removed from office any time, with or without
cause, by the affirmative vote of the shareholders holding 80 percent of the
shares of outstanding Voting Stock (unless the removal has been expressly
approved by the majority vote of all member of the Board of Directors in which
case the removal shall require the affirmative vote of the shareholders holding
a majority of the outstanding shares of Voting Stock of the corporation). A
director named by the Board of Directors to fill a vacancy may be removed from
office at any time, with or without cause, by the affirmative vote of a majority
of the remaining directors if the shareholders have not elected directors in the
interim between the time of the appointment to fill such vacancy and the time of
removal. In the event that any one or more directors or the entire Board is
removed at a shareholders meeting, a new director or new directors shall
be elected at the same meeting.

6.4
No provision of this Article 6 may be repealed or amended in any respect except
by the affirmative vote of the holders of not less than 80 percent of the
outstanding shares of Voting Stock of the corporation (unless the proposed
repeal or amendment has been expressly approved by a majority of all members of
the Board of Directors in which case such a repeal or amendment shall be
approved by the holders of a majority of the outstanding shares of Voting Stock
of the corporation).

7.
A director of this corporation shall not be personally liable to the corporation
or its shareholders for monetary damages for breach of fiduciary duty as a
director, except for liability (i) for any breach of the directors duty of
loyalty to the corporation or its shareholders; (ii) for acts or omissions not
in good faith or which involve intentional misconduct or a knowing violation of
law; (iii) under Section 302A.559 or 80A.23 of the Minnesota Statutes; (iv) for
any transaction from which the director derived an improper personal benefit; or
(v) for any act or omission occurring prior to the date when this Article 7
became effective.

Any
repeal or modification of the foregoing provisions of this Article 7 shall not
adversely affect any right or protection of a director of the corporation
existing at the time of such repeal or modification.

*As amended and restated by
the Companys Board of Directors on April 1, 1997, and further amended on
January 20, 2000, June 30, 2000, August 13, 2001, March 2, 2004 and May 9, 2005.

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