<PAGE>
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
Under the Securities Exchange Act of 1934
(Amendment No. )*
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Advanced Fibre Communications, Inc.
----------------------------------
(Name of Issuer)
Common Stock
----------------------------------
(Title of Class of Securities)
00754A 10 5
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(CUSIP Number)
*The remainder of this cover page shall be filled out for a reporting
person's initial filing on this form with respect to the subject class of
securities, and for any subsequent amendment containing information which
would alter the disclosures provided in a prior page.
The information required in the remainder of this cover page shall not be
deemed to be "filed" for the purpose of Section 18 of the Securities Exchange
Act of 1934 ("Act") or otherwise subject to the liabilities of that section of
the Act but shall be subject to all other provisions of the Act (however, see
the Notes).
(Continued on following pages)
Page 1 of 13 Pages
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CUSIP No. 00754A 10 5 13G Page 2 of 14 Pages
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(1) Names of Reporting Persons. S.S. or I.R.S. Identification Nos. of Above
Persons
Vanguard IV, L.P., a Delaware partnership
- -------------------------------------------------------------------------------
(2) Check the Appropriate Box if a Member (a) / /
of a Group* (b) /X/
- -------------------------------------------------------------------------------
(3) SEC Use Only
- -------------------------------------------------------------------------------
(4) Citizenship or Place of Organization
a Delaware partnership
- -------------------------------------------------------------------------------
Number of Shares (5) Sole Voting
Beneficially Power -0-
Owned by --------------------------------------------------
Each Reporting (6) Shared Voting
Person With Power 2,946,397
--------------------------------------------------
(7) Sole Dispositive
Power -0-
--------------------------------------------------
(8) Shared Dispositive
Power 2,946,397
- -------------------------------------------------------------------------------
(9) Aggregate Amount Beneficially Owned by Each Reporting Person
2,946,397
- -------------------------------------------------------------------------------
(10) Check Box if the Aggregate Amount in Row (9) Excludes Certain Shares*
- -------------------------------------------------------------------------------
(11) Percent of Class Represented by Amount in Row (9)
9.0%
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(12) Type of Reporting Person*
PN
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*SEE INSTRUCTION BEFORE FILLING OUT!
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CUSIP No. 00754A 10 5 13G Page 3 of 13 Pages
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(1) Names of Reporting Persons. S.S. or I.R.S. Identification Nos. of Above
Persons
Vanguard Venture Partners, L.P., a Delaware partnership
- -------------------------------------------------------------------------------
(2) Check the Appropriate Box if a Member (a) / /
of a Group* (b) /x/
- -------------------------------------------------------------------------------
(3) SEC Use Only
- -------------------------------------------------------------------------------
(4) Citizenship or Place of Organization
a Delaware partnership
- -------------------------------------------------------------------------------
Number of Shares (5) Sole Voting
Beneficially Power -0-
Owned by --------------------------------------------------
Each Reporting (6) Shared Voting
Person With Power
2,946,397 shares which are directly owned by
Vanguard IV, L.P. Vanguard Venture Partners,
L.P. is the general partner of Vanguard IV,
L.P.
--------------------------------------------------
(7) Sole Dispositive
Power -0-
--------------------------------------------------
(8) Shared Dispositive
Power
2,946,397 shares which are directly owned by
Vanguard IV, L.P. Vanguard Venture Partners,
L.P. is the general partner of Vanguard IV,
L.P.
- -------------------------------------------------------------------------------
(9) Aggregate Amount Beneficially Owned by Each Reporting Person
2,946,397
- -------------------------------------------------------------------------------
(10) Check Box if the Aggregate Amount in Row (9) Excludes Certain Shares*
- -------------------------------------------------------------------------------
(11) Percent of Class Represented by Amount in Row (9)
9.0%
- -------------------------------------------------------------------------------
(12) Type of Reporting Person* PN
- -------------------------------------------------------------------------------
*SEE INSTRUCTION BEFORE FILLING OUT!
<PAGE>
CUSIP No. 00754A 10 5 13G Page 4 of 13 Pages
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- -------------------------------------------------------------------------------
(1) Names of Reporting Persons. S.S. or I.R.S. Identification Nos. of Above
Persons
Jack M. Gill
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(2) Check the Appropriate Box if a Member (a) / /
of a Group* (b) /X/
- -------------------------------------------------------------------------------
(3) SEC Use Only
- -------------------------------------------------------------------------------
(4) Citizenship or Place of Organization
United States
- -------------------------------------------------------------------------------
Number of Shares (5) Sole Voting
Beneficially Power -0-
Owned by --------------------------------------------------
Each Reporting (6) Shared Voting
Person With Power
2,946,397 shares which are directly owned by
Vanguard IV, Vanguard Venture Partners, L.P.
is the general partner of Vanguard IV, L.P.,
and Mr. Gill is a general partner of Vanguard
Venture Partners, L.P.
--------------------------------------------------
(7) Sole Dispositive
Power -0-
--------------------------------------------------
(8) Shared Dispositive
Power
2,946,397 shares which are directly owned by
Vanguard IV, L.P. Vanguard Venture Partners,
L.P. is the general partner of Vanguard IV,
L.P., and Mr. Gill is a general partner of
Vanguard Venture Partners, L.P.
- -------------------------------------------------------------------------------
(9) Aggregate Amount Beneficially Owned by Each Reporting Person
2,946,397
- -------------------------------------------------------------------------------
(10) Check Box if the Aggregate Amount in Row (9) Excludes Certain Shares*
- -------------------------------------------------------------------------------
(11) Percent of Class Represented by Amount in Row (9)
9.0%
- -------------------------------------------------------------------------------
(12) Type of Reporting Person*
IN
- -------------------------------------------------------------------------------
*SEE INSTRUCTION BEFORE FILLING OUT!
<PAGE>
CUSIP No. 00754A 10 5 13G Page 5 of 13 Pages
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(1) Names of Reporting Persons. S.S. or I.R.S. Identification Nos. of Above
Persons
Clifford H. Higgerson
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(2) Check the Appropriate Box if a Member (a) / /
of a Group* (b) /X/
- -------------------------------------------------------------------------------
(3) SEC Use Only
- -------------------------------------------------------------------------------
(4) Citizenship or Place of Organization
United States
- -------------------------------------------------------------------------------
Number of Shares (5) Sole Voting
Beneficially Power -0-
Owned by --------------------------------------------------
Each Reporting (6) Shared Voting
Person With Power
2,946,397 shares which are directly owned by
Vanguard IV, L.P. Vanguard Venture Partners,
L.P. is the general partner of Vanguard IV,
L.P., and Mr. Higgerson is a general partner
of Vanguard Venture Partners, L.P.
--------------------------------------------------
(7) Sole Dispositive
Power -0-
--------------------------------------------------
(8) Shared Dispositive
Power
2,946,397 shares which are directly owned by
Vanguard IV, L.P. Vanguard Venture Partners,
L.P. is the general partner of Vanguard IV,
L.P., and Mr. Higgerson is a general partner
of Vanguard Venture Partners, L.P.
- -------------------------------------------------------------------------------
(9) Aggregate Amount Beneficially Owned by Each Reporting Person
2,946,397
- -------------------------------------------------------------------------------
(10) Check Box if the Aggregate Amount in Row (9) Excludes Certain Shares*
- -------------------------------------------------------------------------------
(11) Percent of Class Represented by Amount in Row (9)
9.0%
- -------------------------------------------------------------------------------
(12) Type of Reporting Person*
IN
- -------------------------------------------------------------------------------
*SEE INSTRUCTION BEFORE FILLING OUT!
<PAGE>
CUSIP No. 00754A 10 5 13G Page 6 of 13 Pages
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- -------------------------------------------------------------------------------
(1) Names of Reporting Persons. S.S. or I.R.S. Identification Nos. of Above
Persons
Curtis K. Myers
- -------------------------------------------------------------------------------
(2) Check the Appropriate Box if a Member (a) / /
of a Group* (b) /X/
- -------------------------------------------------------------------------------
(3) SEC Use Only
- -------------------------------------------------------------------------------
(4) Citizenship or Place of Organization
United States
- -------------------------------------------------------------------------------
Number of Shares (5) Sole Voting
Beneficially Power -0-
Owned by --------------------------------------------------
Each Reporting (6) Shared Voting
Person With Power
2,946,397 shares which are directly owned by
Vanguard IV, L.P. Vanguard Venture Partners,
L.P. is the general partner of Vanguard IV,
L.P., and Mr. Myers is a general partner of
Vanguard Venture Partners, L.P.
--------------------------------------------------
(7) Sole Dispositive
Power -0-
--------------------------------------------------
(8) Shared Dispositive
Power
2,946,397 shares which are directly owned by
Vanguard IV, L.P. Vanguard Venture Partners,
L.P. is the general partner of Vanguard IV,
L.P., and Mr. Myers is a general partner of
Vanguard Venture Partners, L.P.
- -------------------------------------------------------------------------------
(9) Aggregate Amount Beneficially Owned by Each Reporting Person
2,946,397
- -------------------------------------------------------------------------------
(10) Check Box if the Aggregate Amount in Row (9) Excludes Certain Shares*
- -------------------------------------------------------------------------------
(11) Percent of Class Represented by Amount in Row (9)
9.0%
- -------------------------------------------------------------------------------
(12) Type of Reporting Person*
IN
- -------------------------------------------------------------------------------
*SEE INSTRUCTION BEFORE FILLING OUT!
<PAGE>
Page 7 of 13 Pages
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ITEM 1(A). NAME OF ISSUER
Advanced Fibre Communications, Inc.
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ITEM 1(B). ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES
1445 McDowell Boulevard North
Petaluma, CA 94954
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ITEM 2(A)-(C). NAME, PRINCIPAL BUSINESS ADDRESS AND CITIZENSHIP OF PERSONS
FILING
This statement is being filed by Vanguard IV, L.P., a
Delaware partnership whose principal business address is 525
University Avenue, Palo Alto, CA 94301.
Vanguard Venture Partners, L.P. is the general partner of
Vanguard IV, L.P., a Delaware partnership. With respect to
Vanguard Venture Partners, L.P. and its general partners, this
statement relates only to Vanguard Venture Partners, L.P.'s and
its general partners' indirect, beneficial ownership of shares of
Common Stock of Advanced Fibre Communications, Inc. (the
"Shares"). The Shares have been purchased by Vanguard IV, L.P.,
and Vanguard Venture Partners, L.P. and the general partners of
Vanguard Venture Partners, L.P. do not directly or otherwise hold
any Shares. Management of the business affairs of Vanguard
Venture Partners, L.P., including decisions respecting
disposition and/or voting of the Shares, resides in the general
partners of Vanguard Venture Partners, L.P. (Jack M. Gill,
Clifford H. Higgerson and Curtis K. Myers).
Mr. Gill's principal business address is 1330 Post Oak
Blvd., Suite 1550, Houston, TX 77056. Mr. Gill is a United
States citizen.
<PAGE>
Page 8 of 13 Pages
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Mr. Higgerson's principal business address is 525 University
Avenue, Palo Alto, CA 94301. Mr. Higgerson is a United States
citizen.
Mr. Myers' principal business address is 525 University
Avenue, Suite 600, Palo Alto, CA 94301. Mr. Myers is a United
States citizen.
ITEM 2(D). TITLE OF CLASS OF SECURITIES
Common Stock
ITEM 2(E). CUSIP NUMBER
00754A 10 5
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ITEM 3. Not Applicable.
ITEM 4. OWNERSHIP
A. VANGUARD IV, L.P.
(a) Amount Beneficially Owned: 2,946,397
(b) Percent of Class: 9.0%
(c) Number of shares as to which such person has:
(i) sole power to vote or to direct
the vote: -0-
(ii) shared power to vote or to direct
the vote: 2,946,397
(iii) sole power to dispose or to
direct the disposition of: -0-
(iv) shared power to dispose or to
direct the disposition of: 2,946,397
B. VANGUARD VENTURE PARTNERS, L.P.
(a) Amount Beneficially Owned: 2,946,397
(b) Percent of Class: 9.0%
<PAGE>
Page 9 of 13 Pages
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(c) Number of shares as to which such person has:
(i) sole power to vote or to direct
the vote: -0-
(ii) shared power to vote or to direct
the vote: 2,946,397
(iii) sole power to dispose or to
direct the disposition of: -0-
(iv) shared power to dispose or to
direct the disposition of: 2,946,397
C. JACK M. GILL
(a) Amount Beneficially Owned: 2,946,397(1)
(b) Percent of Class: 9.0%
(c) Number of shares as to which such person has:
(i) sole power to vote or to direct the
vote: -0-
(ii) shared power to vote or to direct
the vote: 2,946,397(1)
(iii) sole power to dispose or to
direct the disposition of: -0-
(iv) shared power to dispose or to
direct the disposition of: 2,946,397(1)
D. CLIFFORD H. HIGGERSON
(a) Amount Beneficially Owned: 2,946,397(1)
(b) Percent of Class: 9.0%
(c) Number of shares as to which such person has:
(i) sole power to vote or to direct the
vote: -0-
(ii) shared power to vote or to direct
the vote: 2,946,397(1)
(iii) sole power to dispose or to
direct the disposition of: -0-
(iv) shared power to dispose or to
direct the disposition of: 2,946,397(1)
<PAGE>
Page 10 of 13 Pages
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E. CURTIS K. MYERS
(a) Amount Beneficially Owned: 2,946,397(1)
(b) Percent of Class: 9.0%
(c) Number of shares as to which such person has:
(i) sole power to vote or to direct the
vote: -0-
(ii) shared power to vote or to direct
the vote: 2,946,397(1)
(iii) sole power to dispose or to
direct the disposition of: -0-
(iv) shared power to dispose or to
direct the disposition of: 2,946,397(1)
(1) The filing of this statement shall not be construed as
an admission that the reporting person is, for purposes of
Section 13(d) or 13(g) of the Act, the beneficial owner of
these securities.
ITEM 5. OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS
Not Applicable
ITEM 6. OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON
Not Applicable
ITEM 7. IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED
THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY
Not Applicable
ITEM 8. IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP
Not Applicable
<PAGE>
Page 11 of 13 Pages
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ITEM 9. NOTICE OF DISSOLUTION OF GROUP
Not Applicable
ITEM 10. CERTIFICATION
Not Applicable
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.
Dated February 11, 1997 VANGUARD IV, L.P.
Vanguard Venture Partners, L.P., its
general partner
By: /S/ CLIFFORD H. HIGGERSON
---------------------------------
Title: General Partner
Vanguard Venture Partners, L.P.
By: /S/ CLIFFORD H. HIGGERSON
---------------------------------
Title: General Partner
Jack M. Gill
/S/ JACK M. GILL
----------------------------------------
Clifford H. Higgerson
/S/ CLIFFORD H. HIGGERSON
----------------------------------------
Curtis K. Myers
/S/ CURTIS K. MYERS
----------------------------------------
<PAGE>
Page 12 of 13 Pages
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EXHIBIT INDEX
Found on
Sequentially
Exhibit Numbered Page
- ------- -------------
Exhibit A: Agreement of Joint Filing 13
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Page 13 of 13 Pages
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EXHIBIT A
AGREEMENT OF JOINT FILING
The undersigned hereby agree that they are filing jointly pursuant to
Rule 13d-1 of the Act the statement dated February 11, 1997, containing the
information required by Schedule 13G, for the 2,946,397 Shares of the Common
Stock of Advanced Fibre Communications, Inc. held by Vanguard IV, L.P.
Dated February 11, 1997 VANGUARD IV, L.P.
Vanguard Venture Partners, L.P., its
general partner
By: /S/ CLIFFORD H. HIGGERSON
---------------------------------
Title: General Partner
Vanguard Venture Partners, L.P.
By: /S/ CLIFFORD H. HIGGERSON
---------------------------------
Title: General Partner
Jack M. Gill
/S/ JACK M. GILL
----------------------------------------
Clifford H. Higgerson
/S/ CLIFFORD H. HIGGERSON
----------------------------------------
Curtis K. Myers
/S/ CURTIS K. MYERS
----------------------------------------
