<ARTICLE> 5 <LEGEND> THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE CONSOLIDATED BALANCE SHEET AND CONSOLIDATED STATEMENT OF OPERATIONS, AS RESTATED, FOUND ON PAGES 2 OR 3 OF THE COMPANY'S FORM 10-Q FOR THE YEAR TO DATE MARCH 31, 1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS. </LEGEND> <RESTATED> <MULTIPLIER> 1,000 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-START> JAN-01-1997 <PERIOD-END> MAR-31-1997 <CASH> 1,440 <SECURITIES> 0 <RECEIVABLES> 4,400 <ALLOWANCES> 0 <INVENTORY> 539 <CURRENT-ASSETS> 7,296 <PP&E> 7,381 <DEPRECIATION> 5,306 <TOTAL-ASSETS> 17,070 <CURRENT-LIABILITIES> 7,012 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 61,630 <OTHER-SE> (53,323) <TOTAL-LIABILITY-AND-EQUITY> 17,070 <SALES> 3,985 <TOTAL-REVENUES> 3,985 <CGS> 2,142 <TOTAL-COSTS> 2,142 <OTHER-EXPENSES> 916 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> (51) <INCOME-PRETAX> (1,600) <INCOME-TAX> 0 <INCOME-CONTINUING> (1,600) <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> (1,600) <EPS-PRIMARY> (.17) <EPS-DILUTED> (.17)