<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED BALANCE SHEETS AND CONSOLIDATED STATEMENTS OF INCOME FOUND ON PAGES
3-5 OF THE COMPANY'S 10-Q FOR THE YEAR TO DATE, AND IS QUALIFIED IN ITS ENTIRETY
BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               SEP-30-1997
<CASH>                                           9,356
<SECURITIES>                                    20,863
<RECEIVABLES>                                   15,869
<ALLOWANCES>                                       751
<INVENTORY>                                     15,525
<CURRENT-ASSETS>                                65,782
<PP&E>                                          25,257
<DEPRECIATION>                                  13,100
<TOTAL-ASSETS>                                  82,820
<CURRENT-LIABILITIES>                           12,145
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           165
<OTHER-SE>                                      69,817
<TOTAL-LIABILITY-AND-EQUITY>                    82,820
<SALES>                                         74,260
<TOTAL-REVENUES>                                74,260
<CGS>                                           42,943
<TOTAL-COSTS>                                   42,943
<OTHER-EXPENSES>                                34,861
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                (2,387)
<INCOME-TAX>                                     (907)
<INCOME-CONTINUING>                            (1,480)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   (1,480)
<EPS-PRIMARY>                                   (0.09)
<EPS-DILUTED>                                   (0.09)