<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM FORM 10-K
AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               DEC-31-1997
<CASH>                                          11,278
<SECURITIES>                                     5,184
<RECEIVABLES>                                    8,573
<ALLOWANCES>                                       438
<INVENTORY>                                      9,514
<CURRENT-ASSETS>                                37,280
<PP&E>                                           9,596
<DEPRECIATION>                                   5,629
<TOTAL-ASSETS>                                  41,598
<CURRENT-LIABILITIES>                           10,933
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                            10
<OTHER-SE>                                      30,655
<TOTAL-LIABILITY-AND-EQUITY>                    41,598
<SALES>                                         46,630
<TOTAL-REVENUES>                                46,630
<CGS>                                           25,255
<TOTAL-COSTS>                                   25,255
<OTHER-EXPENSES>                                22,272
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                  (897)
<INCOME-TAX>                                       171
<INCOME-CONTINUING>                            (1,068)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   (1,068)
<EPS-PRIMARY>                                   (0.06)
<EPS-DILUTED>                                   (0.06)