May 18, 1995



PERSONAL AND CONFIDENTIAL

Mr. Gerald A. Wall
Digi International Inc.
6400 Flying Cloud Drive
Eden Prairie, MN 55344

Dear Jerry:

        This letter is written to confirm the terms of your compensation for
fiscal 1995.

        Your base pay is an annual salary of $130,000, retroactive to October
1, 1994.

        You are also eligible for a cash bonus equal to 100% of your base
salary, contingent upon Digi International Inc. meeting budgeted net sales
and after-tax earnings targets for fiscal 1995. If either of these targets is
not met, the Compensation Committee of the Board of Directors will determine
in its discretion the amount of bonus, if any, that you would be paid for
fiscal 1995.

        As you are aware, you were also awarded a stock option for 10,000
shares of Digi Common Stock, with an exercise price of $17.50 per share, as a
further element of your fiscal 1995 compensation.

Very truly yours,



Ervin F. Kamm, Jr.
President & Chief Executive Officer

EFK/llh

cc:     W. K. Drake
        J. E. Nicholson