$16,000,000 October 13, 1998
WESTELL TECHNOLOGIES, INC., WESTELL, INC., WESTELL INTERNATIONAL, INC., AND
CONFERENCE PLUS, INCORPORATED (collectively, "Borrowers"), hereby jointly and severally promise to
pay to the order of LaSalle National Bank (the "Bank"), on August 30, 1999 the principal sum of Sixteen Million
and No/100 ($16,000,000), or such lesser amount of all of the then outstanding advances made by the Bank to
Borrowers pursuant to Section 2.1 of the "Loan Agreement" (as hereinafter defined), together with interest on
any and all principal amounts remaining unpaid hereunder from time to time from the date hereof until paid, at the
rate(s) set forth in Section 2.6 of the Loan Agreement, payable on the last day of each "Interest Period" (as such
term is defined in the Loan Agreement) and continuing until the Revolving Loans (as such term is defined in the
Loan Agreement) are paid in full.
Any amount of interest or principal hereof which is not paid when due, whether on the last day of an Interest
Period, at stated maturity, by acceleration or otherwise, shall bear interest payable on demand at the "Default
Rate" (as such term is defined in the Loan Agreement).
All payments of principal and interest on this Note shall be payable in lawful money of the United States of
America. In no event shall the interest payable exceed the highest rate permitted by law. Principal and interest
shall be paid to Bank at its office at 135 South LaSalle Street, Chicago, Illinois 60603, or at such other place as
the holder of this Note may designate in writing to Borrowers. All payments hereunder shall be applied as
provided in the Loan Agreement. In determining Borrowers' liability to the Bank hereunder, the books and
records of the Bank shall be controlling absent arithmetic or manifest error.
This Note evidences certain indebtedness incurred under the Loan and Security Agreement, dated as of the date
hereof, among Borrowers and Bank (as heretofore or hereafter amended, the "Loan Agr