CERTAIN INFORMATION FROM THIS DOCUMENT HAS BEEN REDACTED PURSUANT TO
A CONFIDENTIAL TREATMENT REQUEST BY HARMONIC INC. UNDER 17 C.F.R. §§ 200.80
(B)(4), 200.83 AND 240.24B-2 AND SUBMITTED SEPARATELY WITH THE SECURITIES AND
To the Professional Services Agreement
Between Harmonic and Plexus
For ROP/ROQ Demand Pull Program
This Addendum 1 (“Addendum”), to the Professional Services Agreement, entered into on September 22, 2003,
including its Amendment made 6 th of January 2006 (“Agreement”), is made and entered into as of
November 26, 2007 (Effective Date) by and between Plexus Services Corp, including its subsidiaries and
affiliates (“Plexus”) and Harmonic Inc., including its subsidiaries and affiliates (“Harmonic”).
WHEREAS , Harmonic and Plexus have entered into the Agreement and;
WHEREAS , Harmonic and Plexus each desire to supplement the Agreement.
NOW THEREFORE , in consideration of the mutual covenants contained herein, the parties hereto agree
This Addendum applies to the ROP/ROQ Demand Pull Program:
A. Forecasting, Ordering, and Inventory Planning
Plexus and Harmonic
Rev. Date November 20, 2007
Demand Pull Addendum
a. After Receipt of Order (“ARO”)
Shall be the amount of time from Plexus’ receipt of a Purchase Order to the time Plexus ships the
Assemblies, and is set at [*] days (with the intent to get to [*] days).
Shall mean quantities of Assemblies required by Harmonic and communicated to Plexus via Forecast
and/or Harmonic’s Purchase Orders.
Information redacted pursuant to a confidential treatment request by Harmonic Inc. under 17 C.F.R. §§
200.80(b)(4), 200.83 and 240.24b-2 and submitted separately with the Securities and Exchange
c. Demand Flexibility
Shall mean the defined level of Demand variability that the program is normally able to absorb and still
provide the S