<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1999 <PERIOD-START> JAN-01-1999 <PERIOD-END> JUN-30-1999 <CASH> 46,186 <SECURITIES> 6,190 <RECEIVABLES> 80,094 <ALLOWANCES> 8,110 <INVENTORY> 33,738 <CURRENT-ASSETS> 166,063 <PP&E> 46,927 <DEPRECIATION> 35,314 <TOTAL-ASSETS> 183,664 <CURRENT-LIABILITIES> 39,775 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 54,298 <OTHER-SE> 89,591 <TOTAL-LIABILITY-AND-EQUITY> 183,664 <SALES> 179,803 <TOTAL-REVENUES> 179,803 <CGS> 132,504 <TOTAL-COSTS> 132,504 <OTHER-EXPENSES> 37,201 <LOSS-PROVISION> 1,454 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> 10,894 <INCOME-TAX> 3,092 <INCOME-CONTINUING> 7,802 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 7,802 <EPS-BASIC> 0.35 <EPS-DILUTED> 0.34