<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED STATEMENTS OF OPERATIONS, CONSOLIDATED BALANCE SHEETS, NOTES TO
CONSOLIDATED FINANCIAL STATEMENTS AND SCHEDULE II, AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH ANNUAL REPORT ON FORM 10-K FOR THE YEAR ENDED
SEPTEMBER 30, 1999.
</LEGEND>
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS

                             
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          SEP-30-1999
<PERIOD-START>                             OCT-01-1998
<PERIOD-END>                               SEP-30-1999
<EXCHANGE-RATE>                                      1
<CASH>                                          66,366
<SECURITIES>                                         0
<RECEIVABLES>                                   34,591
<ALLOWANCES>                                     1,687
<INVENTORY>                                     28,917
<CURRENT-ASSETS>                               137,728
<PP&E>                                          41,553
<DEPRECIATION>                                  24,119
<TOTAL-ASSETS>                                 177,145
<CURRENT-LIABILITIES>                           31,932
<BONDS>                                          1,338
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           128
<OTHER-SE>                                     142,018
<TOTAL-LIABILITY-AND-EQUITY>                   177,145
<SALES>                                         82,437
<TOTAL-REVENUES>                               103,906
<CGS>                                           44,311
<TOTAL-COSTS>                                   57,877
<OTHER-EXPENSES>                                25,894
<LOSS-PROVISION>                                   188
<INTEREST-EXPENSE>                                 368
<INCOME-PRETAX>                                (8,939)
<INCOME-TAX>                                   (1,015)
<INCOME-CONTINUING>                            (7,884)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   (7,884)
<EPS-BASIC>                                     (0.76)
<EPS-DILUTED>                                   (0.76)